{"id":687,"date":"2025-12-29T06:14:57","date_gmt":"2025-12-29T06:14:57","guid":{"rendered":"https:\/\/cn-hawe.com\/?p=687"},"modified":"2026-03-09T01:08:29","modified_gmt":"2026-03-09T01:08:29","slug":"press-brake-fundamentals","status":"publish","type":"post","link":"https:\/\/cn-hawe.com\/vi\/press-brake-fundamentals\/","title":{"rendered":"Nh\u1eefng \u0111i\u1ec1u c\u01a1 b\u1ea3n v\u1ec1 m\u00e1y ch\u1ea5n t\u00f4n: C\u00e1ch \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c n\u1ebfp g\u1ea5p \u0111\u1ed3ng nh\u1ea5t, \u0111\u00fang th\u00f4ng s\u1ed1 m\u00e0 kh\u00f4ng c\u1ea7n th\u1eed v\u00e0 sai"},"content":{"rendered":"

T\u1ea1i sao \u201cBi\u1ec3u \u0111\u1ed3\u201d \u0111ang l\u1eeba b\u1ea1n \u2014 v\u00e0 t\u1ea1i sao c\u00e1c g\u00f3c u\u1ed1n b\u1ecb sai<\/h2>\n\n\n\n

Chi ti\u1ebft sau khi ra kh\u1ecfi m\u00e1y u\u1ed1n nh\u00ecn ho\u00e0n h\u1ea3o \u2014 cho \u0111\u1ebfn khi n\u00f3 ngu\u1ed9i, th\u01b0 gi\u00e3n v\u00e0 m\u1edf ra th\u00eam hai \u0111\u1ed9, l\u00e0m v\u01b0\u1ee3t qu\u00e1 dung sai m\u00e0 bi\u1ec3u \u0111\u1ed3 \u0111\u00e3 h\u1ee9a s\u1ebd \u201c\u0111\u1ea3m b\u1ea3o.\u201d Kho\u1ea3nh kh\u1eafc \u0111\u00f3 cho th\u1ea5y kho\u1ea3ng tr\u1ed1ng m\u00e0 b\u00e0i vi\u1ebft n\u00e0y mu\u1ed1n gi\u1ea3i quy\u1ebft: u\u1ed1n b\u1eb1ng m\u00e1y ch\u1ea5n kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 h\u00ecnh h\u1ecdc; \u0111\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 h\u00e0nh vi c\u1ee7a h\u1ec7 th\u1ed1ng. Bi\u1ec3u \u0111\u1ed3 m\u00f4 t\u1ea3 h\u00ecnh h\u1ecdc. Ch\u00fang kh\u00f4ng m\u00f4 t\u1ea3 th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

S\u1ef1 l\u1ec7ch pha gi\u1eefa b\u1ea3n tr\u1ea3i t\u1eeb CAD v\u00e0 th\u1ef1c t\u1ebf t\u1ea1i x\u01b0\u1edfng<\/h3>\n\n\n\n

C\u00e1c b\u1ea3n tr\u1ea3i CAD v\u00e0 bi\u1ec3u \u0111\u1ed3 u\u1ed1n gi\u1ea3 \u0111\u1ecbnh m\u1ed9t th\u1ebf gi\u1edbi l\u00fd t\u01b0\u1edfng: v\u1eadt li\u1ec7u \u0111\u1ed3ng nh\u1ea5t, m\u00e1y m\u00f3c ho\u00e0n to\u00e0n c\u1ee9ng, d\u1ee5ng c\u1ee5 nguy\u00ean v\u1eb9n, v\u00e0 tr\u1ee5c trung t\u00ednh ngoan ngo\u00e3n n\u1eb1m \u0111\u00fang v\u1ecb tr\u00ed m\u00e0 ph\u1ea7n m\u1ec1m \u0111\u1eb7t. T\u1ea1i x\u01b0\u1edfng, kh\u00f4ng gi\u1ea3 \u0111\u1ecbnh n\u00e0o t\u1ed3n t\u1ea1i sau khi ti\u1ebfp x\u00fac v\u1edbi th\u1ef1c t\u1ebf. K\u1ebft qu\u1ea3 l\u00e0 s\u1ef1 ch\u00eanh l\u1ec7ch dai d\u1eb3ng gi\u1eefa c\u00e1i tr\u00f4ng \u0111\u00fang tr\u00ean CAM v\u00e0 c\u00e1i th\u1ef1c s\u1ef1 \u0111o \u0111\u01b0\u1ee3c sau khi t\u1ea1o h\u00ecnh.<\/p>\n\n\n\n

\"S\u1ef1<\/figure>\n\n\n\n

Tr\u1ee5c trung t\u00ednh kh\u00f4ng c\u1ed1 \u0111\u1ecbnh.<\/strong> C\u00e1c h\u1ec7 th\u1ed1ng CAD d\u1ef1a tr\u00ean h\u1ec7 s\u1ed1 K \u2014 m\u1ed9t t\u1ef7 l\u1ec7 d\u00f9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed tr\u1ee5c trung t\u00ednh trong \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u \u2014 \u0111\u1ec3 t\u00ednh chi\u1ec1u d\u00e0i d\u00e0n ph\u1eb3ng. Trong th\u1ef1c t\u1ebf, tr\u1ee5c trung t\u00ednh thay \u0111\u1ed5i theo gi\u1edbi h\u1ea1n ch\u1ea3y, kh\u1ea3 n\u0103ng h\u00f3a b\u1ec1n do bi\u1ebfn d\u1ea1ng, h\u01b0\u1edbng th\u1edb, v\u00e0 \u0111\u1ed9 d\u00e0y th\u1ef1c c\u1ee7a v\u1eadt li\u1ec7u. Hai t\u1ea5m \u0111\u1ec1u \u0111\u01b0\u1ee3c ghi \u201cinox 304, 1.5 mm\u201d c\u00f3 th\u1ec3 u\u1ed1n kh\u00e1c nhau \u0111\u1ee7 \u0111\u1ec3 sai g\u00f3c v\u00e0 chi\u1ec1u d\u00e0i g\u1edd, ngay c\u1ea3 v\u1edbi d\u1ee5ng c\u1ee5 v\u00e0 ch\u01b0\u01a1ng tr\u00ecnh gi\u1ed1ng h\u1ec7t nhau.<\/p>\n\n\n\n

S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa l\u00f4 v\u1eadt li\u1ec7u l\u00e0 k\u1ebb ph\u00e1 ho\u1ea1i l\u1eb7ng l\u1ebd.<\/strong> Gi\u1edbi h\u1ea1n ch\u1ea3y quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 h\u1ed3i \u0111\u00e0n. N\u1ebfu m\u1ed9t l\u00f4 v\u1eadt li\u1ec7u m\u1edbi m\u1ea1nh h\u01a1n v\u1eadt li\u1ec7u d\u00f9ng \u0111\u1ec3 t\u1ea1o b\u1ea3ng u\u1ed1n, chi ti\u1ebft s\u1ebd m\u1edf ra nhi\u1ec1u h\u01a1n sau khi th\u00e1o t\u1ea3i. Bi\u1ec3u \u0111\u1ed3 kh\u00f4ng thay \u0111\u1ed5i \u2014 nh\u01b0ng v\u1eadt li\u1ec7u \u0111\u00e3 thay \u0111\u1ed5i. N\u1ebfu kh\u00f4ng x\u00e1c minh h\u00e0nh vi c\u1ee7a v\u1eadt li\u1ec7u theo t\u1eebng l\u00f4, th\u00e0nh c\u00f4ng c\u1ee7a chi ti\u1ebft \u0111\u1ea7u ti\u00ean s\u1ebd l\u00e0 may m\u1eafn ch\u1ee9 kh\u00f4ng ph\u1ea3i ki\u1ec3m so\u00e1t quy tr\u00ecnh.<\/p>\n\n\n\n

M\u00e1y m\u00f3c v\u00e0 d\u1ee5ng c\u1ee5 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a h\u00ecnh h\u1ecdc.<\/strong> Khi ch\u1ecbu t\u1ea3i, b\u00e0n m\u00e1y ch\u1ea5n b\u1ecb v\u00f5ng, tr\u1ee5c tr\u01b0\u1ee3t nghi\u00eang \u0111i v\u00e0i micron, v\u00e0 h\u1ec7 th\u1ed1ng ch\u1ed1ng v\u00f5ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 b\u00f9 \u0111\u1eafp. \u0110\u1ea7u ch\u00e0y b\u1ecb m\u00f2n, vai c\u1ee7a khu\u00f4n b\u1ecb bo tr\u00f2n, v\u00e0 h\u1ec7 th\u1ed1ng g\u00e1 sau ph\u00e1t tri\u1ec3n \u0111\u1ed9 r\u01a1. M\u1ed7i y\u1ebfu t\u1ed1 n\u00e0y thay \u0111\u1ed5i h\u00ecnh h\u1ecdc d\u1ee5ng c\u1ee5 th\u1ef1c t\u1ebf trong l\u00fac u\u1ed1n. Bi\u1ec3u \u0111\u1ed3 gi\u1ea3 \u0111\u1ecbnh c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee9ng v\u00e0 nh\u01b0 m\u1edbi; x\u01b0\u1edfng l\u00e0m vi\u1ec7c v\u1edbi thi\u1ebft b\u1ecb s\u1ed1ng v\u00e0 gi\u00e0 \u0111i.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c chi ti\u1ebft \u201ckh\u1edbp v\u1edbi b\u1ea3n tr\u1ea3i\u201d v\u1eabn b\u1ecb tr\u01b0\u1ee3t khi ki\u1ec3m tra. Bi\u1ec3u \u0111\u1ed3 \u0111\u1ecbnh ngh\u0129a h\u00ecnh d\u1ea1ng l\u00fd t\u01b0\u1edfng. X\u01b0\u1edfng t\u1ea1o ra k\u1ebft qu\u1ea3 c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng ch\u1ecbu t\u1ea3i v\u00e0 kh\u00f4ng ho\u00e0n h\u1ea3o.<\/p>\n\n\n\n

T\u1ea1i sao \u201cG\u00f3c = Ch\u00e0y + Khu\u00f4n\u201d l\u00e0 m\u1ed9t s\u1ef1 \u0111\u01a1n gi\u1ea3n h\u00f3a nguy hi\u1ec3m<\/h3>\n\n\n\n

Ni\u1ec1m tin r\u1eb1ng g\u00f3c cu\u1ed1i c\u00f9ng b\u1eb1ng g\u00f3c ch\u00e0y c\u1ed9ng g\u00f3c khu\u00f4n b\u1ecf qua bi\u1ebfn s\u1ed1 chi ph\u1ed1i trong u\u1ed1n: \u0111\u1ed9 h\u1ed3i \u0111\u00e0n. G\u00f3c m\u00e0 b\u1ea1n th\u1ea5y khi ch\u1ecbu t\u1ea3i kh\u00f4ng ph\u1ea3i l\u00e0 g\u00f3c m\u00e0 chi ti\u1ebft gi\u1eef l\u1ea1i sau khi th\u00e1o t\u1ea3i.<\/p>\n\n\n\n

\"T\u1ea1i<\/figure>\n\n\n\n

\u0110\u1ed9 h\u1ed3i \u0111\u00e0n l\u00e0 s\u1ef1 ph\u1ee5c h\u1ed3i \u0111\u00e0n h\u1ed3i, kh\u00f4ng ph\u1ea3i sai s\u00f3t.<\/strong> Khi ch\u00e0y r\u00fat ra, v\u1eadt li\u1ec7u gi\u1ea3i ph\u00f3ng n\u0103ng l\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i \u0111\u00e3 l\u01b0u tr\u1eef v\u00e0 th\u01b0 gi\u00e3n, m\u1edf g\u00f3c u\u1ed1n ra. \u0110\u1ed9 h\u1ed3i \u0111\u00e0n b\u1ecb chi ph\u1ed1i b\u1edfi bi\u1ebfn d\u1ea1ng \u00e1p \u0111\u1eb7t trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh, m\u00e0 l\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o chi\u1ec1u r\u1ed9ng khe V, b\u00e1n k\u00ednh \u0111\u1ea7u ch\u00e0y, ph\u01b0\u01a1ng ph\u00e1p u\u1ed1n (u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y, ch\u1ea1m \u0111\u00e1y, ho\u1eb7c d\u1eadp), v\u00e0 gi\u1edbi h\u1ea1n ch\u1ea3y c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

C\u00e1c g\u00f3c c\u1ee7a d\u1ee5ng c\u1ee5 ch\u1ec9 l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u.<\/strong> Trong u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y, ch\u00e0y h\u1ea7u nh\u01b0 kh\u00f4ng bao gi\u1edd ti\u1ebfp x\u00fac ho\u00e0n to\u00e0n v\u1edbi g\u00f3c khu\u00f4n \u2014 v\u1eadt li\u1ec7u n\u1eb1m tr\u00ean vai khu\u00f4n v\u00e0 \u00f4m quanh \u0111\u1ea7u ch\u00e0y. Thay \u0111\u1ed5i chi\u1ec1u r\u1ed9ng khe V ho\u1eb7c b\u00e1n k\u00ednh ch\u00e0y s\u1ebd thay \u0111\u1ed5i b\u00e1n k\u00ednh trong, ph\u00e2n b\u1ed1 bi\u1ebfn d\u1ea1ng, v\u00e0 do \u0111\u00f3 thay \u0111\u1ed5i \u0111\u1ed9 h\u1ed3i \u0111\u00e0n. C\u00e1c g\u00f3c danh ngh\u0129a c\u1ee7a d\u1ee5ng c\u1ee5 c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u1ed5i; g\u00f3c u\u1ed1n k\u1ebft qu\u1ea3 s\u1ebd kh\u00e1c.<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p u\u1ed1n quan tr\u1ecdng h\u01a1n nh\u1eefng g\u00ec h\u1ea7u h\u1ebft bi\u1ec3u \u0111\u1ed3 th\u1eeba nh\u1eadn.<\/strong> U\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y gi\u1ea3m l\u1ef1c ch\u1ea5n v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 thay \u0111\u1ed5i, nh\u01b0ng c\u0169ng t\u1ea1o ra \u0111\u1ed9 bi\u1ebfn thi\u00ean h\u1ed3i \u0111\u00e0n l\u1edbn nh\u1ea5t. U\u1ed1n ch\u1ea1m \u0111\u00e1y gi\u1eef ch\u1eb7t chi ti\u1ebft h\u01a1n, gi\u1ea3m \u0111\u1ed9 bi\u1ebfn thi\u00ean. D\u1eadp bi\u1ebfn d\u1ea1ng d\u1ebbo to\u00e0n b\u1ed9 b\u1ec1 d\u00e0y v\u1eadt li\u1ec7u, g\u1ea7n nh\u01b0 lo\u1ea1i b\u1ecf h\u1ed3i \u0111\u00e0n \u2014 nh\u01b0ng ph\u1ea3i tr\u1ea3 gi\u00e1 b\u1eb1ng l\u1ef1c ch\u1ea5n r\u1ea5t cao v\u00e0 m\u00f2n d\u1ee5ng c\u1ee5 nhanh. Y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c (\u00b10.5\u00b0 so v\u1edbi \u00b10.1\u00b0) n\u00ean l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh ph\u01b0\u01a1ng ph\u00e1p, kh\u00f4ng ph\u1ea3i th\u00f3i quen.<\/p>\n\n\n\n

K\u1ebft lu\u1eadn th\u1ef1c t\u1ebf r\u1ea5t r\u00f5 r\u00e0ng: b\u1ea1n kh\u00f4ng th\u1ec3 l\u1eadp tr\u00ecnh g\u00f3c u\u1ed1n ch\u1ec9 t\u1eeb h\u00ecnh h\u1ecdc d\u1ee5ng c\u1ee5. \u0110\u1ed9 h\u1ed3i \u0111\u00e0n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111o cho ri\u00eang t\u1eebng t\u1ed5 h\u1ee3p v\u1eadt li\u1ec7u, d\u1ee5ng c\u1ee5, v\u00e0 m\u00e1y m\u00f3c, sau \u0111\u00f3 b\u00f9 b\u1eb1ng hi\u1ec7u ch\u1ec9nh th\u1ef1c nghi\u1ec7m \u2014 d\u00f9ng u\u1ed1n qu\u00e1 ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u h\u00e0nh tr\u00ecnh \u2014 d\u1ef1a tr\u00ean d\u1eef li\u1ec7u th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

Chi ph\u00ed \u1ea9n c\u1ee7a th\u1eed v\u00e0 sai: T\u1ef7 l\u1ec7 ph\u1ebf ph\u1ea9m so v\u1edbi th\u1eddi gian thi\u1ebft l\u1eadp<\/h3>\n\n\n\n

\u201cCh\u1ec9nh cho \u0111\u1ebfn khi \u0111\u1ea1t\u201d nghe c\u00f3 v\u1ebb nhanh. N\u00f3 c\u0169ng t\u1ed1n k\u00e9m theo nh\u1eefng c\u00e1ch m\u00e0 h\u1ea7u h\u1ebft c\u00e1c x\u01b0\u1edfng kh\u00f4ng bao gi\u1edd quan t\u00e2m \u0111o l\u01b0\u1eddng.<\/p>\n\n\n\n

\"Chi<\/figure>\n\n\n\n

Ph\u1ebf ph\u1ea9m t\u00edch t\u1ee5 m\u1ed9t c\u00e1ch \u00e2m th\u1ea7m.<\/strong> T\u1ef7 l\u1ec7 ph\u1ebf ph\u1ea9m 5% tr\u00ean m\u1ed9t l\u00f4 1.000 s\u1ea3n ph\u1ea9m kh\u00f4ng ch\u1ec9 ngh\u0129a l\u00e0 50 ph\u1ea7n l\u1ed7i. N\u00f3 ti\u00eau t\u1ed1n nguy\u00ean li\u1ec7u, th\u1eddi gian m\u00e1y, nh\u00e2n c\u00f4ng v\u00e0 n\u0103ng l\u1ef1c ki\u1ec3m tra, \u0111\u1ed3ng th\u1eddi t\u1ea1o ra s\u1ef1 b\u1ea5t \u0111\u1ecbnh trong giao h\u00e0ng v\u00e0 b\u00e1o gi\u00e1. Ph\u00e9p t\u00ednh \u0111\u01a1n gi\u1ea3n nh\u01b0ng kh\u1eafc nghi\u1ec7t: chi ph\u00ed ph\u1ebf ph\u1ea9m = chi ph\u00ed m\u1ed7i s\u1ea3n ph\u1ea9m \u00d7 t\u1ef7 l\u1ec7 ph\u1ebf ph\u1ea9m \u00d7 s\u1ed1 l\u01b0\u1ee3ng. Ch\u1ea1y s\u1ed1 li\u1ec7u v\u00e0 s\u1ef1 x\u00f3i m\u00f2n l\u1ee3i nhu\u1eadn s\u1ebd tr\u1edf n\u00ean r\u00f5 r\u00e0ng.<\/p>\n\n\n\n

Th\u1eddi gian thi\u1ebft l\u1eadp r\u1ebb h\u01a1n vi\u1ec7c s\u1eeda l\u1ea1i.<\/strong> M\u1ed9t l\u1ea7n thi\u1ebft l\u1eadp chu\u1ea9n x\u00e1c 10\u201315 ph\u00fat\u2014s\u1eed d\u1ee5ng \u0111\u00fang l\u00f4 nguy\u00ean li\u1ec7u v\u00e0 d\u1ee5ng c\u1ee5 d\u1ef1 ki\u1ebfn\u2014c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf h\u00e0ng ch\u1ee5c l\u1ea7n th\u1eed sai. M\u1ed9t l\u1ea7n th\u1eed u\u1ed1n ng\u1eafn, \u0111o g\u00f3c, v\u00e0 l\u1eadp tr\u00ecnh u\u1ed1n b\u00f9 s\u1ebd kh\u00e9p v\u00f2ng tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t b\u1eaft \u0111\u1ea7u. Th\u1eddi gian \u0111\u00f3 \u0111\u01b0\u1ee3c l\u00ean k\u1ebf ho\u1ea1ch, d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c, v\u00e0 \u0111\u01b0\u1ee3c b\u00f9 \u0111\u1eafp d\u01b0 th\u1eeba nh\u1edd gi\u1ea3m ph\u1ebf ph\u1ea9m v\u00e0 chu k\u1ef3 \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

Kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i t\u1ed1t h\u01a1n nh\u1eefng pha \u201canh h\u00f9ng c\u1ee9u gi\u00e1\u201d.<\/strong> C\u00e1c x\u01b0\u1edfng \u0111\u1ea7u t\u01b0 v\u00e0o hi\u1ec7u ch\u1ec9nh nhanh v\u00e0 k\u1ef7 lu\u1eadt cho ra s\u1ea3n ph\u1ea9m l\u00f4 \u0111\u1ea7u \u0111\u1ea1t ki\u1ec3m tra, b\u00e1o gi\u00e1 t\u1ef1 tin, v\u00e0 tr\u00e1nh vi\u1ec7c li\u00ean t\u1ee5c ch\u1eefa ch\u00e1y. C\u00e1c x\u01b0\u1edfng d\u1ef1a v\u00e0o kinh nghi\u1ec7m truy\u1ec1n mi\u1ec7ng v\u00e0 \u201cc\u1ea3m gi\u00e1c\u201d \u0111\u01a1n gi\u1ea3n chuy\u1ec3n chi ph\u00ed xu\u1ed1ng ph\u00eda sau\u2014\u0111\u1ebfn th\u00f9ng ph\u1ebf, l\u00e0m th\u00eam gi\u1edd, v\u00e0 nh\u01b0\u1ee3ng b\u1ed9 kh\u00e1ch h\u00e0ng.<\/p>\n\n\n\n

L\u1eddi h\u1ee9a \u1edf \u0111\u00e2y r\u1ea5t r\u00f5 r\u00e0ng: ng\u1eebng coi b\u1ea3ng u\u1ed1n nh\u01b0 kinh th\u00e1nh v\u00e0 b\u1eaft \u0111\u1ea7u coi vi\u1ec7c u\u1ed1n l\u00e0 m\u1ed9t quy tr\u00ecnh ki\u1ec3m so\u00e1t \u0111\u01b0\u1ee3c. L\u00e0m v\u1eady, c\u00e1c g\u00f3c s\u1ebd kh\u00f4ng c\u00f2n \u201ctr\u00f4i\u201d m\u1ed9t c\u00e1ch b\u00ed \u1ea9n, th\u1eddi gian thi\u1ebft l\u1eadp gi\u1ea3m, v\u00e0 t\u1ef7 l\u1ec7 h\u1ecfng th\u1ea5p \u0111i\u2014kh\u00f4ng ph\u1ea3i v\u00ec b\u1ea3ng u\u1ed1n t\u1ed1t h\u01a1n, m\u00e0 v\u00ec s\u1ef1 hi\u1ec3u bi\u1ebft c\u1ee7a b\u1ea1n \u0111\u00e3 t\u1ed1t h\u01a1n.<\/p>\n\n\n\n

Ba ph\u01b0\u01a1ng ph\u00e1p u\u1ed1n, ba s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i: Ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n

U\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y: V\u00ec sao g\u00f3c khu\u00f4n (ch\u1ee9 kh\u00f4ng ph\u1ea3i ch\u00e0y) quy\u1ebft \u0111\u1ecbnh k\u1ebft qu\u1ea3<\/h3>\n\n\n\n

U\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p m\u1eb7c \u0111\u1ecbnh \u1edf h\u1ea7u h\u1ebft c\u00e1c x\u01b0\u1edfng v\u00ec n\u00f3 linh ho\u1ea1t v\u00e0 y\u00eau c\u1ea7u l\u1ef1c \u00e9p t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p. T\u1ea5m kim lo\u1ea1i ch\u1ec9 ti\u1ebfp x\u00fac v\u1edbi m\u0169i ch\u00e0y v\u00e0 hai vai khu\u00f4n; n\u00f3 kh\u00f4ng bao gi\u1edd t\u1ef1a v\u00e0o th\u00e0nh khu\u00f4n. Th\u1ef1c t\u1ebf \u0111\u01a1n gi\u1ea3n n\u00e0y gi\u1ea3i th\u00edch m\u1ecdi \u0111i\u1ec1u ti\u1ebfp theo.<\/p>\n\n\n\n

Khu\u00f4n\u2014kh\u00f4ng ph\u1ea3i ch\u00e0y\u2014quy\u1ebft \u0111\u1ecbnh k\u1ebft qu\u1ea3.<\/strong> V\u00ec v\u1eadt li\u1ec7u \u201ctr\u00f4i n\u1ed5i\u201d b\u00ean trong ch\u1eef V, b\u00e1n k\u00ednh b\u00ean trong v\u00e0 g\u00f3c cu\u1ed1i c\u00f9ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh b\u1edfi \u0111\u1ed9 m\u1edf ch\u1eef V v\u00e0 g\u00f3c khu\u00f4n, c\u00f9ng v\u1edbi \u0111\u1ed9 s\u00e2u ch\u00e0y \u00e9p xu\u1ed1ng. B\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i g\u00f3c ch\u00e0y c\u1ea3 ng\u00e0y nh\u01b0ng hi\u1ec7u qu\u1ea3 r\u1ea5t \u00edt; thay \u0111\u1ed5i \u0111\u1ed9 m\u1edf ch\u1eef V v\u00e0 k\u1ebft qu\u1ea3 l\u1eadp t\u1ee9c kh\u00e1c. \u0110\u00f3 l\u00e0 l\u00fd do ng\u01b0\u1eddi v\u1eadn h\u00e0nh gi\u00e0u kinh nghi\u1ec7m \u0111i\u1ec1u ch\u1ec9nh g\u00f3c qua ch\u1ecdn khu\u00f4n v\u00e0 \u0111\u1ed9 s\u00e2u ch\u00e0y\u2014kh\u00f4ng ph\u1ea3i b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng ch\u00e0y.<\/p>\n\n\n\n

Nh\u1eefng s\u1ef1 \u0111\u00e1nh \u0111\u1ed5i b\u1ea1n ch\u1ea5p nh\u1eadn:<\/strong> l\u1ef1c \u00e9p th\u1ea5p nh\u1ea5t cho m\u1ed9t \u0111\u1ed9 d\u00e0y nh\u1ea5t \u0111\u1ecbnh, thi\u1ebft l\u1eadp nhanh, v\u00e0 kh\u1ea3 n\u0103ng t\u1ea1o nhi\u1ec1u g\u00f3c kh\u00e1c nhau v\u1edbi m\u1ed9t b\u1ed9 d\u1ee5ng c\u1ee5. \u0110\u1ed5i l\u1ea1i, b\u1ea1n ph\u1ea3i ch\u1ea5p nh\u1eadn \u0111\u1ed9 h\u1ed3i l\u00f2 l\u1edbn nh\u1ea5t\u2014v\u00e0 bi\u1ebfn thi\u00ean nhi\u1ec1u nh\u1ea5t. Thay \u0111\u1ed5i l\u00f4 v\u1eadt li\u1ec7u, h\u01b0\u1edbng th\u1edb, v\u00e0 bi\u1ebfn d\u1ea1ng m\u00e1y s\u1ebd th\u1ec3 hi\u1ec7n tr\u1ef1c ti\u1ebfp \u1edf g\u00f3c. \u0110\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ea1t \u0111\u01b0\u1ee3c, nh\u01b0ng l\u00e0 th\u1ef1c nghi\u1ec7m: \u0111o, b\u00f9, l\u1eb7p l\u1ea1i.<\/p>\n\n\n\n

C\u00e1c t\u00e1c \u0111\u1ed9ng trong x\u01b0\u1edfng \u0111\u00e1ng ch\u00fa \u00fd:<\/strong> \u0110\u1ed9 m\u1edf ch\u1eef V \u1ea3nh h\u01b0\u1edfng r\u1ea5t l\u1edbn \u0111\u1ebfn b\u00e1n k\u00ednh b\u00ean trong v\u00e0 \u0111\u1ed9 h\u1ed3i l\u00f2 (quy t\u1eafc \u201c~8\u00d7 \u0111\u1ed9 d\u00e0y\u201d ch\u1ec9 l\u00e0 h\u01b0\u1edbng d\u1eabn, kh\u00f4ng ph\u1ea3i lu\u1eadt). Ch\u1eef V nh\u1ecf l\u00e0m b\u00e1n k\u00ednh ch\u1eb7t h\u01a1n v\u00e0 gi\u1ea3m h\u1ed3i l\u00f2\u2014nh\u01b0ng t\u0103ng l\u1ef1c \u00e9p. Ch\u1eef V l\u1edbn gi\u1ea3m l\u1ef1c nh\u01b0ng t\u0103ng bi\u1ebfn thi\u00ean. \u0110\u1ed9 cong khu\u00f4n v\u00e0 \u0111\u1ed9 song song c\u1ee7a ch\u00e0y quan tr\u1ecdng h\u01a1n \u1edf \u0111\u00e2y so v\u1edbi b\u1ea5t c\u1ee9 n\u01a1i n\u00e0o.<\/p>\n\n\n\n

U\u1ed1n ch\u1ea1m \u0111\u00e1y: Khi b\u1ea3n v\u1ebd ghi \u00b10,5\u00b0\u2014v\u00e0 b\u1ea1n th\u1ef1c hi\u1ec7n \u0111\u00fang<\/h3>\n\n\n\n

U\u1ed1n ch\u1ea1m \u0111\u00e1y \u00e9p v\u1eadt li\u1ec7u ch\u1eafc v\u00e0o g\u00f3c khu\u00f4n d\u01b0\u1edbi t\u1ea3i. Ch\u00e0y ti\u1ebfp t\u1ee5c cho \u0111\u1ebfn khi c\u00e1c m\u00e9p t\u1ef1a v\u00e0o m\u1eb7t khu\u00f4n, gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 h\u1ed3i l\u00f2 so v\u1edbi u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y.<\/p>\n\n\n\n

T\u1ea1i sao c\u00e1c c\u1eeda h\u00e0ng ch\u1ecdn n\u00f3:<\/strong> Khi \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u00fang c\u00e1ch, u\u1ed1n ch\u1eb7n \u0111\u00e1y th\u01b0\u1eddng xuy\u00ean \u0111\u1ea1t \u0111\u1ed9 ch\u00ednh x\u00e1c g\u00f3c kho\u1ea3ng \u00b10,5\u00b0. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 l\u1eddi qu\u1ea3ng c\u00e1o\u2014m\u00e0 l\u00e0 k\u1ebft qu\u1ea3 t\u1ef1 nhi\u00ean c\u1ee7a vi\u1ec7c \u00e9p ph\u1ea7n chi ti\u1ebft v\u00e0o \u0111\u00fang h\u00ecnh d\u1ea1ng c\u1ee7a khu\u00f4n thay v\u00ec \u0111\u1ec3 n\u00f3 n\u1ed5i b\u00ean tr\u00ean.<\/p>\n\n\n\n

Nh\u1eefng g\u00ec b\u1ea1n ph\u1ea3i t\u1eeb b\u1ecf:<\/strong> l\u1ef1c \u00e9p cao h\u01a1n so v\u1edbi u\u1ed1n b\u1eb1ng kh\u00f4ng kh\u00ed v\u00e0 gi\u1ea3m t\u00ednh linh ho\u1ea1t. G\u00f3c c\u1ee7a khu\u00f4n ph\u1ea3i kh\u1edbp v\u1edbi g\u00f3c c\u1ee7a chi ti\u1ebft m\u1ee5c ti\u00eau (ho\u1eb7c \u0111\u01b0\u1ee3c b\u00f9 tr\u1eeb m\u1ed9t c\u00e1ch ch\u1ee7 \u00fd), v\u00e0 b\u00e1n k\u00ednh c\u1ee7a ch\u00e0y tr\u1ef1c ti\u1ebfp x\u00e1c \u0111\u1ecbnh b\u00e1n k\u00ednh b\u00ean trong. B\u1ea1n m\u1ea5t kh\u1ea3 n\u0103ng d\u1ec5 d\u00e0ng ch\u1ea1y nhi\u1ec1u g\u00f3c t\u1eeb m\u1ed9t thi\u1ebft l\u1eadp duy nh\u1ea5t.<\/p>\n\n\n\n

N\u01a1i n\u00f3 ph\u00e1t huy:<\/strong> ch\u1ea1y s\u1ea3n l\u01b0\u1ee3ng trung b\u00ecnh v\u1edbi dung sai g\u00f3c ch\u1eb7t ch\u1ebd\u2014\u0111\u1eb7c bi\u1ec7t khi \u0111\u1ed9 ch\u00ednh x\u00e1c ngay \u1edf s\u1ea3n ph\u1ea9m \u0111\u1ea7u ti\u00ean l\u00e0 quan tr\u1ecdng v\u00e0 b\u1ea1n mu\u1ed1n gi\u1ea3m thi\u1ec3u c\u00e1c l\u1ea7n u\u1ed1n th\u1eed. \u0110\u1ed9 b\u1eadt l\u1ea1i v\u1eabn t\u1ed3n t\u1ea1i, nh\u01b0ng ph\u1ea1m vi \u0111i\u1ec1u ch\u1ec9nh h\u1eb9p h\u01a1n v\u00e0 d\u1ec5 d\u1ef1 \u0111o\u00e1n h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n

Th\u1ef1c t\u1ebf thi\u1ebft l\u1eadp:<\/strong> kho\u1ea3ng h\u1edf ph\u1ea3i ch\u00ednh x\u00e1c \u0111\u1ec3 ph\u1ea7n g\u1edd \u0111\u01b0\u1ee3c ch\u1eb7n ho\u00e0n to\u00e0n m\u00e0 kh\u00f4ng b\u1ecb x\u01b0\u1edbc. M\u00f2n d\u1ee5ng c\u1ee5 th\u1ec3 hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng l\u1ec7ch g\u00f3c d\u1ea7n d\u1ea7n\u2014h\u00e3y ki\u1ec3m tra v\u00e0 m\u00e0i d\u1ee5ng c\u1ee5 tr\u01b0\u1edbc khi \u0111\u1ed5 l\u1ed7i cho ch\u01b0\u01a1ng tr\u00ecnh. U\u1ed1n ch\u1eb7n \u0111\u00e1y th\u01b0\u1edfng cho vi\u1ec7c ch\u1ecdn d\u1ee5ng c\u1ee5 c\u00f3 k\u1ef7 lu\u1eadt v\u00e0 b\u1ea3o tr\u00ec t\u1ed1t.<\/p>\n\n\n\n

\u00c9p \u0111\u1ed3ng: Kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i t\u1ed1i \u0111a v\u1edbi chi ph\u00ed l\u1ef1c \u00e9p t\u1ed1i \u0111a<\/h3>\n\n\n\n

\u00c9p \u0111\u1ed3ng l\u00e0m bi\u1ebfn d\u1ea1ng d\u1ebbo to\u00e0n b\u1ed9 v\u00f9ng u\u1ed1n \u0111\u1ec3 kh\u1edbp ho\u00e0n to\u00e0n v\u1edbi bi\u00ean d\u1ea1ng c\u1ee7a ch\u00e0y v\u00e0 khu\u00f4n. \u0110\u1ed9 b\u1eadt l\u1ea1i v\u1ec1 c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf v\u00ec v\u1eadt li\u1ec7u b\u1ecb ch\u1ea3y d\u1ebbo qua to\u00e0n b\u1ed9 chi\u1ec1u d\u00e0y.<\/p>\n\n\n\n

Nh\u1eefng g\u00ec b\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c:<\/strong> m\u1ee9c \u0111\u1ed9 l\u1eb7p l\u1ea1i v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh g\u00f3c cao nh\u1ea5t c\u00f3 th\u1ec3 cho m\u00e1y ch\u1ea5n t\u00f4n. Khi bi\u1ebfn \u0111\u1ed9ng l\u00e0 \u0111i\u1ec1u kh\u00f4ng th\u1ec3 ch\u1ea5p nh\u1eadn, \u00e9p \u0111\u1ed3ng s\u1ebd \u0111\u00e1p \u1ee9ng.<\/p>\n\n\n\n

Chi ph\u00ed:<\/strong> l\u1ef1c \u00e9p\u2014th\u01b0\u1eddng g\u1ea5p nhi\u1ec1u l\u1ea7n so v\u1edbi u\u1ed1n b\u1eb1ng kh\u00f4ng kh\u00ed c\u00f9ng lo\u1ea1i v\u1eadt li\u1ec7u\u2014v\u00e0 m\u00f2n nhanh h\u01a1n tr\u00ean d\u1ee5ng c\u1ee5 v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn m\u00e1y. Canh ch\u1ec9nh, \u0111\u1ed9 c\u1ee9ng d\u1ee5ng c\u1ee5 v\u00e0 t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t tr\u1edf n\u00ean quan tr\u1ecdng v\u00ec \u1ee9ng su\u1ea5t ti\u1ebfp x\u00fac l\u00e0 c\u1ef1c l\u1edbn.<\/p>\n\n\n\n

Khi n\u00f3 \u0111\u01b0\u1ee3c bi\u1ec7n minh:<\/strong> ch\u1ea1y ng\u1eafn v\u1edbi y\u00eau c\u1ea7u kh\u00f4ng ch\u1ea5p nh\u1eadn bi\u1ebfn \u0111\u1ed9ng, ho\u1eb7c c\u00e1c chi ti\u1ebft m\u00e0 \u0111\u1ed9 b\u1eadt l\u1ea1i ph\u1ea3i \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n v\u00e0 m\u00e1y c\u00f3 \u0111\u1ee7 c\u00f4ng su\u1ea5t. \u00c9p \u0111\u1ed3ng kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ed1i t\u1eaft cho c\u00e1c quy\u1ebft \u0111\u1ecbnh d\u1ee5ng c\u1ee5 k\u00e9m; n\u00f3 l\u00e0 s\u1ef1 trao \u0111\u1ed5i c\u00f3 ch\u1ee7 \u00fd gi\u1eefa l\u1ef1c \u00e9p v\u00e0 m\u00f2n \u0111\u1ec3 \u0111\u1ea1t s\u1ef1 ch\u1eafc ch\u1eafn.<\/p>\n\n\n\n

M\u1ed9t s\u1ef1 th\u1eadt kh\u00f3 ch\u1ea5p nh\u1eadn:<\/strong> vi\u1ec7c th\u00eam l\u1ef1c \u00e9p \u0111\u1ec3 \u201cs\u1eeda\u201d c\u00e1c u\u1ed1n kh\u00f4ng nh\u1ea5t qu\u00e1n ch\u1ec9 che gi\u1ea5u v\u1ea5n \u0111\u1ec1 th\u1ef1c s\u1ef1. L\u1ef1a ch\u1ecdn V\u2011opening sai, d\u1ee5ng c\u1ee5 m\u00f2n, ho\u1eb7c b\u00e0n m\u00e1y kh\u00f4ng ph\u1eb3ng s\u1ebd xu\u1ea5t hi\u1ec7n l\u1ea1i sau n\u00e0y\u2014th\u01b0\u1eddng d\u01b0\u1edbi d\u1ea1ng d\u1ee5ng c\u1ee5 n\u1ee9t ho\u1eb7c m\u00e1y b\u1ecb h\u1ecfng.<\/p>\n\n\n\n

M\u1ed9t k\u1ef9 thu\u1eadt \u0111\u1ec3 th\u1eed \u2014 N\u0103m ph\u00fat \u0111\u1ec3 c\u00f3 g\u00f3c t\u1ed1t h\u01a1n<\/strong><\/p>\n\n\n\n

M\u1ee5c ti\u00eau:<\/strong> gi\u1ea3m vi\u1ec7c \u0111u\u1ed5i g\u00f3c khi u\u1ed1n gi\u00f3 m\u00e0 kh\u00f4ng thay \u0111\u1ed5i d\u1ee5ng c\u1ee5.<\/p>\n\n\n\n

    \n
  1. C\u1eaft m\u1ed9t t\u1ea5m th\u1eed nghi\u1ec7m<\/strong> t\u1eeb c\u00f9ng lo\u1ea1i t\u1ea5m v\u1edbi s\u1ea3n xu\u1ea5t.
    Th\u00e0nh c\u00f4ng tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0y:<\/em> b\u1ea1n \u0111ang th\u1eed nghi\u1ec7m \u0111\u00fang v\u1eadt li\u1ec7u th\u1ef1c t\u1ebf, kh\u00f4ng ph\u1ea3i mi\u1ebfng ph\u1ebf li\u1ec7u c\u00f2n s\u00f3t l\u1ea1i t\u1eeb tu\u1ea7n tr\u01b0\u1edbc.<\/li>\n\n\n\n
  2. Th\u1ef1c hi\u1ec7n m\u1ed9t l\u1ea7n u\u1ed1n gi\u00f3<\/strong> theo \u0111\u1ed9 s\u00e2u l\u1eadp tr\u00ecnh danh ngh\u0129a. \u0110o g\u00f3c ngay l\u1eadp t\u1ee9c. Th\u00e0nh c\u00f4ng tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0y:<\/em> m\u1ed9t sai s\u1ed1 r\u00f5 r\u00e0ng, c\u00f3 th\u1ec3 \u0111o \u0111\u01b0\u1ee3c (v\u00ed d\u1ee5: \u0111\u1ea1t 92,0\u00b0 so v\u1edbi m\u1ee5c ti\u00eau 90,0\u00b0).<\/li>\n\n\n\n
  3. T\u00ednh to\u00e1n \u0111\u1ed9 u\u1ed1n qu\u00e1 m\u1ed9t l\u1ea7n<\/strong> b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng \u0111\u1ed9 h\u1ed3i l\u00f2 xo \u0111\u00e3 \u0111o. \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u c\u1ee7a tr\u1ee5c \u0111\u1ec3 c\u1ed1 t\u00ecnh u\u1ed1n qu\u00e1 v\u1edbi l\u01b0\u1ee3ng \u0111\u00f3. Th\u00e0nh c\u00f4ng tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0y:<\/em> l\u1ea7n u\u1ed1n th\u1ee9 hai \u0111\u1ea1t trong kho\u1ea3ng \u00b10,5\u20131,0\u00b0 m\u00e0 kh\u00f4ng c\u1ea7n th\u1eed v\u00e0 sai.<\/li>\n\n\n\n
  4. Kh\u00f3a \u0111i\u1ec1u ch\u1ec9nh<\/strong> cho v\u1eadt li\u1ec7u, \u0111\u1ed9 d\u00e0y v\u00e0 t\u1ed5 h\u1ee3p khu\u00f4n c\u1ee5 th\u1ec3 \u0111\u00f3. Th\u00e0nh c\u00f4ng tr\u00f4ng nh\u01b0 th\u1ebf n\u00e0y:<\/em> m\u1ecdi chi ti\u1ebft sau \u0111\u00f3 \u0111\u1ec1u \u0111\u1ea1t g\u00f3c ngay t\u1eeb l\u1ea7n u\u1ed1n \u0111\u1ea7u ti\u00ean.<\/li>\n<\/ol>\n\n\n\n

    C\u00e1ch hi\u1ec7u ch\u1ec9nh \u0111\u01a1n gi\u1ea3n n\u00e0y t\u00f4n tr\u1ecdng b\u1ea3n ch\u1ea5t th\u1ef1c s\u1ef1 c\u1ee7a u\u1ed1n gi\u00f3 \u2014 m\u1ed9t qu\u00e1 tr\u00ecnh th\u1ef1c nghi\u1ec7m \u2014 v\u00e0 bi\u1ebfn s\u1ef1 bi\u1ebfn thi\u00ean kh\u00f4ng th\u1ec3 tr\u00e1nh kh\u1ecfi th\u00e0nh m\u1ed9t \u0111\u1ea7u v\u00e0o c\u00f3 ki\u1ec3m so\u00e1t, l\u1eb7p l\u1ea1i \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

    Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa u\u1ed1n gi\u00f3, u\u1ed1n \u0111\u00e1y v\u00e0 d\u1eadp ch\u00ecm kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u00fang hay sai. N\u00f3 l\u00e0 v\u1ec1 vi\u1ec7c c\u00e2n nh\u1eafc c\u00f3 ch\u1ee7 \u0111\u00edch gi\u1eefa t\u00ednh linh ho\u1ea1t, l\u1ef1c \u00e9p, \u0111\u1ed9 m\u00f2n c\u1ee7a d\u1ee5ng c\u1ee5 v\u00e0 \u0111\u1ed9 l\u1eb7p l\u1ea1i \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi b\u1ea3n v\u1ebd tr\u01b0\u1edbc m\u1eaft b\u1ea1n.<\/p>\n\n\n\n

    Quy t\u1eafc 8\u00d7 v\u00e0 h\u01a1n th\u1ebf n\u1eefa: Ch\u1ecdn d\u1ee5ng c\u1ee5 th\u1ef1c s\u1ef1 ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n

    T\u1ea1i sao \u201c8\u00d7 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u\u201d ch\u1ec9 l\u00e0 \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u cho vi\u1ec7c ch\u1ecdn khu\u00f4n V<\/h3>\n\n\n\n

    H\u1ea7u h\u1ebft c\u00e1c b\u00e0i vi\u1ebft tr\u00ecnh b\u00e0y quy t\u1eafc 8\u00d7 nh\u01b0 m\u1ed9t ch\u1ec9 d\u1eabn b\u1eaft bu\u1ed9c. Kh\u00f4ng ph\u1ea3i v\u1eady. N\u00f3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 ph\u00e2n lo\u1ea1i \u01b0u ti\u00ean<\/em>\u2014m\u1ed9t c\u00e1ch nhanh \u0111\u1ec3 v\u00e0o \u0111\u00fang ph\u1ea1m vi cho u\u1ed1n kh\u00f4ng kh\u00ed th\u00e9p m\u1ec1m khi \u00edt th\u00f4ng tin kh\u00e1c \u0111\u01b0\u1ee3c bi\u1ebft.<\/p>\n\n\n\n

    Quy t\u1eafc cho r\u1eb1ng kh\u1ea9u \u0111\u1ed9 V n\u00ean kho\u1ea3ng g\u1ea5p t\u00e1m l\u1ea7n \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u. C\u00e1c x\u01b0\u1edfng \u01b0a d\u00f9ng v\u00ec n\u00f3 th\u01b0\u1eddng cho ra l\u1ef1c \u00e9p h\u1ee3p l\u00fd, b\u00e1n k\u00ednh trong ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c v\u00e0 \u0111\u1ed9 h\u1ed3i d\u1ea1ng d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c cho th\u00e9p cacbon th\u1ea5p. V\u1ea5n \u0111\u1ec1 \u1ea9n gi\u1ea5u l\u00e0 n\u00f3 \u00e2m th\u1ea7m gi\u1ea3 \u0111\u1ecbnh \u0111\u1ed9 b\u1ec1n k\u00e9o trung b\u00ecnh, \u0111\u1ed9 d\u1ebbo trung b\u00ecnh, v\u00e0 chi\u1ec1u d\u00e0i m\u00e9p n\u1eb1m trong gi\u1edbi h\u1ea1n khu\u00f4n. Thay \u0111\u1ed5i b\u1ea5t k\u1ef3 y\u1ebfu t\u1ed1 n\u00e0o trong s\u1ed1 \u0111\u00f3, quy t\u1eafc b\u1eaft \u0111\u1ea7u b\u1ecb ph\u00e1 v\u1ee1.<\/p>\n\n\n\n

    M\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 h\u01a1n \u0111\u1ec3 d\u00f9ng 8\u00d7T l\u00e0 nh\u01b0 m\u1ed9t \u0111i\u1ec3m ki\u1ec3m tra ban \u0111\u1ea7u, theo sau l\u00e0 ba c\u00e2u h\u1ecfi ngay l\u1eadp t\u1ee9c. \u0110\u1ea7u ti\u00ean: b\u1ea3n v\u1ebd c\u00f3 y\u00eau c\u1ea7u b\u00e1n k\u00ednh trong nh\u1ecf h\u01a1n b\u00e1n k\u00ednh m\u00e0 kh\u1ea9u \u0111\u1ed9 V \u0111\u00f3 t\u1ea1o ra t\u1ef1 nhi\u00ean kh\u00f4ng? N\u1ebfu c\u00f3, th\u00ec V ph\u1ea3i \u0111\u01b0\u1ee3c gi\u1ea3m xu\u1ed1ng\u2014ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o h\u00ecnh ph\u1ea3i thay \u0111\u1ed5i. Th\u1ee9 hai: v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o cao, d\u1ec5 b\u1ecb h\u00f3a b\u1ec1n ho\u1eb7c nh\u1ea1y c\u1ea3m v\u1edbi n\u1ee9t g\u00e3y kh\u00f4ng? N\u1ebfu c\u00f3, V th\u01b0\u1eddng n\u00ean \u0111\u01b0\u1ee3c t\u0103ng \u0111\u1ec3 gi\u1ea3m l\u1ef1c \u00e9p v\u00e0 \u1ee9ng su\u1ea5t b\u1ec1 m\u1eb7t. Th\u1ee9 ba: m\u00e9p c\u00f3 ng\u1eafn so v\u1edbi chi\u1ec1u r\u1ed9ng khu\u00f4n kh\u00f4ng? M\u00e9p ng\u1eafn t\u1ea1o l\u1ef1c \u00e9p t\u1eadp trung m\u1ea1nh v\u00e0 c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 \u0111\u1ecbnh m\u1ee9c khu\u00f4n ngay c\u1ea3 khi t\u1ed5ng l\u1ef1c \u00e9p m\u00e1y c\u00f3 v\u1ebb an to\u00e0n.<\/p>\n\n\n\n

    \u0110\u00e2y l\u00e0 l\u00fd do c\u00e1c x\u01b0\u1edfng gi\u00e0u kinh nghi\u1ec7m hi\u1ebfm khi d\u1ef1a v\u00e0o m\u1ed9t h\u1ec7 s\u1ed1 nh\u00e2n ph\u1ed5 qu\u00e1t. H\u1ecd ngh\u0129 theo ph\u1ea1m vi. Th\u00e9p m\u1ec1m m\u1ecfng c\u00f3 th\u1ec3 tho\u1ea3i m\u00e1i \u1edf m\u1ee9c 8\u00d7. C\u00e1c \u0111\u1ed9 d\u00e0y l\u1edbn h\u01a1n th\u01b0\u1eddng d\u1ecbch sang 9\u201310\u00d7. Th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 h\u1ee3p kim c\u01b0\u1eddng \u0111\u1ed9 cao th\u01b0\u1eddng k\u1ebft th\u00fac \u1edf 10\u201312\u00d7 ho\u1eb7c h\u01a1n. \u201cQuy t\u1eafc\u201d v\u1eabn t\u1ed3n t\u1ea1i\u2014nh\u01b0ng ch\u1ec9 nh\u01b0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong c\u00e2y quy\u1ebft \u0111\u1ecbnh, ch\u1ee9 kh\u00f4ng ph\u1ea3i quy\u1ebft \u0111\u1ecbnh cu\u1ed1i c\u00f9ng.<\/p>\n\n\n\n

    M\u1ed1i quan h\u1ec7 gi\u1eefa kh\u1ea9u \u0111\u1ed9 V v\u00e0 b\u00e1n k\u00ednh trong b\u1ea1n th\u1ef1c s\u1ef1 nh\u1eadn \u0111\u01b0\u1ee3c<\/h3>\n\n\n\n

    Trong qu\u00e1 tr\u00ecnh u\u1ed1n kh\u00f4ng kh\u00ed, b\u00e1n k\u00ednh trong kh\u00f4ng \u0111\u01b0\u1ee3c d\u1eadp b\u1edfi ch\u00e0y. N\u00f3 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi d\u00f2ng ch\u1ea3y v\u1eadt li\u1ec7u<\/em> gi\u1eefa \u0111\u1ea7u ch\u00e0y v\u00e0 vai khu\u00f4n. Kh\u1ea9u \u0111\u1ed9 V l\u00e0 y\u1ebfu t\u1ed1 ch\u00ednh \u0111i\u1ec1u khi\u1ec3n d\u00f2ng ch\u1ea3y \u0111\u00f3.<\/p>\n\n\n\n

    V\u1ec1 m\u1eb7t th\u1ef1c ti\u1ec5n, kh\u1ea9u \u0111\u1ed9 V l\u1edbn h\u01a1n t\u1ea1o ra b\u00e1n k\u00ednh trong l\u1edbn h\u01a1n v\u00e0 c\u1ea7n \u00edt l\u1ef1c \u00e9p h\u01a1n. Kh\u1ea9u \u0111\u1ed9 V nh\u1ecf h\u01a1n th\u1eaft ch\u1eb7t b\u00e1n k\u00ednh nh\u01b0ng \u0111\u00f2i h\u1ecfi nhi\u1ec1u l\u1ef1c h\u01a1n v\u00e0 t\u0103ng \u1ee9ng su\u1ea5t b\u1ec1 m\u1eb7t. \u0110\u00e2y l\u00e0 l\u00fd do ch\u1ec9 thay \u0111\u1ed5i khu\u00f4n c\u00f3 th\u1ec3 th\u01b0\u1eddng xuy\u00ean gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 b\u00e1n k\u00ednh m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ee5ng t\u1edbi \u0111\u1ed9 s\u00e2u h\u00e0nh tr\u00ecnh.<\/p>\n\n\n\n

    \u0110\u1ed1i v\u1edbi u\u1ed1n kh\u00f4ng kh\u00ed 90\u00b0 ti\u00eau chu\u1ea9n, nhi\u1ec1u x\u01b0\u1edfng nh\u1eadn th\u1ea5y b\u00e1n k\u00ednh trong k\u1ebft qu\u1ea3 r\u01a1i v\u00e0o kho\u1ea3ng 0.02\u00d7V \u0111\u1ebfn 0.08\u00d7V, t\u00f9y thu\u1ed9c v\u00e0o v\u1eadt li\u1ec7u v\u00e0 b\u00e1n k\u00ednh \u0111\u1ea7u ch\u00e0y. Kho\u1ea3ng \u0111\u00f3 quan tr\u1ecdng. N\u00f3 c\u00f3 ngh\u0129a l\u00e0 hai khu\u00f4n \u0111\u1ec1u th\u1ecfa m\u00e3n h\u01b0\u1edbng d\u1eabn \u201c8\u00d7 \u0111\u1ed9 d\u00e0y\u201d quen thu\u1ed9c v\u1eabn c\u00f3 th\u1ec3 t\u1ea1o ra b\u00e1n k\u00ednh kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t\u2014v\u00e0 do \u0111\u00f3 \u0111\u1ed9 h\u1ed3i d\u1ea1ng kh\u00e1c nhau\u2014tr\u00ean c\u00f9ng m\u1ed9t chi ti\u1ebft.<\/p>\n\n\n\n

    \u0110\u00e2y l\u00e0 \u0111i\u1ec3m m\u00e0 b\u1ea3ng t\u0129nh b\u1ecb thi\u1ebfu s\u00f3t v\u00e0 c\u00e1c th\u1eed nghi\u1ec7m nhanh th\u1ef1c nghi\u1ec7m mang l\u1ea1i k\u1ebft qu\u1ea3. U\u1ed1n m\u1ed9t m\u1eabu trong kh\u1ea9u \u0111\u1ed9 V \u0111\u00e3 ch\u1ecdn, \u0111o b\u00e1n k\u00ednh trong, v\u00e0 ghi l\u1ea1i cho l\u00f4 v\u1eadt li\u1ec7u \u0111\u00f3. M\u1ed9t th\u1eed nghi\u1ec7m bi\u1ebfn m\u1ed9t quy t\u1eafc ph\u1ecfng \u0111o\u00e1n th\u00e0nh k\u1ebft qu\u1ea3 \u0111\u00e3 bi\u1ebft. Theo th\u1eddi gian, nh\u1eefng ghi ch\u00fa \u0111\u00f3 tr\u1edf n\u00ean gi\u00e1 tr\u1ecb h\u01a1n b\u1ea5t k\u1ef3 b\u1ea3ng chung n\u00e0o.<\/p>\n\n\n\n

    B\u00e1n k\u00ednh ch\u00e0y so v\u1edbi b\u00e1n k\u00ednh trong\u2014s\u1ef1 l\u1ec7ch l\u1ea1c l\u00e0m h\u1ecfng g\u00f3c u\u1ed1n<\/h3>\n\n\n\n

    Hi\u1ec3u l\u1ea7m dai d\u1eb3ng nh\u1ea5t l\u00e0 b\u00e1n k\u00ednh \u0111\u1ea7u ch\u00e0y b\u1eb1ng b\u00e1n k\u00ednh trong. \u0110i\u1ec1u \u0111\u00f3 kh\u00f4ng \u0111\u00fang\u2014tr\u1eeb khi hi\u1ebfm hoi tr\u00f9ng h\u1ee3p.<\/p>\n\n\n\n

    B\u00e1n k\u00ednh trong l\u00e0 k\u1ebft qu\u1ea3 k\u1ebft h\u1ee3p c\u1ee7a ba y\u1ebfu t\u1ed1: b\u00e1n k\u00ednh \u0111\u1ea7u ch\u00e0y, kh\u1ea9u \u0111\u1ed9 V, v\u00e0 h\u00e0nh vi v\u1eadt li\u1ec7u. Khi c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y m\u1ea5t c\u00e2n \u0111\u1ed1i, vi\u1ec7c ki\u1ec3m so\u00e1t g\u00f3c u\u1ed1n b\u1ecb \u1ea3nh h\u01b0\u1edfng\u2014ngay c\u1ea3 khi l\u1ef1c \u00e9p v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt l\u00e0 \u0111\u00fang.<\/p>\n\n\n\n

    Ch\u00e0y qu\u00e1 nh\u1ecdn so v\u1edbi kh\u1ea9u \u0111\u1ed9 V v\u00e0 \u0111\u1ed9 d\u1ebbo c\u1ee7a v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 \u00e9p ra b\u00e1n k\u00ednh qu\u00e1 ch\u1eb7t ngo\u00e0i mong mu\u1ed1n, t\u0103ng bi\u1ebfn thi\u00ean \u0111\u1ed9 h\u1ed3i d\u1ea1ng v\u00e0 r\u1ee7i ro n\u1ee9t g\u00e3y\u2014\u0111\u1eb7c bi\u1ec7t trong th\u00e9p c\u01b0\u1eddng \u0111\u1ed9 cao. Ch\u00e0y qu\u00e1 t\u00f9, ng\u01b0\u1ee3c l\u1ea1i, c\u00f3 th\u1ec3 ng\u0103n v\u1eadt li\u1ec7u ng\u1ed3i ho\u00e0n to\u00e0n v\u00e0o khu\u00f4n trong u\u1ed1n kh\u00f4ng kh\u00ed, d\u1eabn \u0111\u1ebfn g\u00f3c u\u1ed1n thi\u1ebfu chu\u1ea9n m\u00e0 ph\u1ea3i t\u0103ng \u0111\u1ed9 s\u00e2u h\u00e0nh tr\u00ecnh nh\u01b0ng v\u1eabn kh\u00f4ng \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

    H\u01b0\u1edbng d\u1eabn \u0111\u00e1ng tin c\u1eady cho x\u01b0\u1edfng l\u00e0 b\u1eaft \u0111\u1ea7u v\u1edbi b\u00e1n k\u00ednh \u0111\u1ea7u ch\u00e0y kho\u1ea3ng b\u1eb1ng m\u1ed9t n\u1eeda \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u cho \u0111a s\u1ed1 th\u00e9p m\u1ec1m v\u00e0 th\u00e9p kh\u00f4ng g\u1ec9 trong u\u1ed1n kh\u00f4ng kh\u00ed. H\u00ecnh h\u1ecdc n\u00e0y th\u01b0\u1eddng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c kh\u1ea9u \u0111\u1ed9 V ph\u1ed5 bi\u1ebfn v\u00e0 t\u1ea1o ra g\u00f3c u\u1ed1n \u1ed5n \u0111\u1ecbnh, l\u1eb7p l\u1ea1i \u0111\u01b0\u1ee3c. V\u1eadt li\u1ec7u m\u1ec1m h\u01a1n nh\u01b0 nh\u00f4m th\u01b0\u1eddng h\u01b0\u1edfng l\u1ee3i t\u1eeb b\u00e1n k\u00ednh ch\u00e0y l\u1edbn h\u01a1n\u2014g\u1ea7n b\u1eb1ng b\u00e1n k\u00ednh trong mong mu\u1ed1n\u2014\u0111\u1ec3 gi\u1ea3m m\u1ecfng v\u00e0 d\u1ea5u b\u1ec1 m\u1eb7t.<\/p>\n\n\n\n

    C\u00e1ch nhanh nh\u1ea5t \u0111\u1ec3 th\u1ea5y t\u00e1c \u0111\u1ed9ng l\u00e0 qua so s\u00e1nh c\u00f3 ki\u1ec3m so\u00e1t. U\u1ed1n c\u00f9ng m\u1ed9t m\u1eabu trong c\u00f9ng kh\u1ea9u \u0111\u1ed9 V \u1edf c\u00f9ng \u0111\u1ed9 s\u00e2u h\u00e0nh tr\u00ecnh, ch\u1ec9 thay \u0111\u1ed5i b\u00e1n k\u00ednh ch\u00e0y, r\u1ed3i \u0111o b\u00e1n k\u00ednh trong v\u00e0 g\u00f3c cu\u1ed1i c\u00f9ng. S\u1ef1 kh\u00e1c bi\u1ec7t hi\u1ebfm khi tinh vi\u2014v\u00e0 m\u1ed9t khi b\u1ea1n th\u1ea5y, \u201cch\u00e0y b\u1eb1ng b\u00e1n k\u00ednh\u201d tr\u1edf n\u00ean kh\u00f3 m\u00e0 tin l\u1ea1i.<\/p>\n\n\n\n

    Khi n\u00e0o ph\u00e1 b\u1ecf quy t\u1eafc: T\u1ea5m d\u00e0y v\u00e0 v\u1eadt li\u1ec7u c\u01b0\u1eddng \u0111\u1ed9 cao<\/h3>\n\n\n\n

    C\u00e1c ti\u1ebft di\u1ec7n d\u00e0y v\u00e0 h\u1ee3p kim c\u01b0\u1eddng \u0111\u1ed9 cao l\u00e0 n\u01a1i c\u00e1c quy t\u1eafc \u0111\u01a1n gi\u1ea3n tr\u1edf n\u00ean nguy hi\u1ec3m.<\/p>\n\n\n\n

    Khi \u0111\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 b\u1ec1n t\u0103ng, l\u1ef1c \u00e9p y\u00eau c\u1ea7u t\u0103ng nhanh. \u00c9p kh\u1ea9u \u0111\u1ed9 V 8\u00d7 l\u00ean v\u1eadt li\u1ec7u n\u1eb7ng ho\u1eb7c c\u1ee9ng th\u01b0\u1eddng n\u00e9n c\u1eeda s\u1ed5 an to\u00e0n: chi ti\u1ebft b\u1ecb n\u1ee9t, \u0111\u1ed9 h\u1ed3i d\u1ea1ng kh\u00f3 \u0111o\u00e1n, ho\u1eb7c d\u1ee5ng c\u1ee5 b\u1ecb c\u0103ng qu\u00e1 m\u1ee9c. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, m\u1edf r\u1ed9ng khu\u00f4n\u2014th\u01b0\u1eddng t\u1edbi 10\u201312\u00d7 \u0111\u1ed9 d\u00e0y ho\u1eb7c h\u01a1n\u2014kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 l\u01b0\u1eddi bi\u1ebfng; \u0111\u00f3 l\u00e0 qu\u1ea3n l\u00fd r\u1ee7i ro.<\/p>\n\n\n\n

    N\u1ebfu b\u1ea3n v\u1ebd y\u00eau c\u1ea7u b\u00e1n k\u00ednh b\u00ean trong nh\u1ecf tr\u00ean v\u1eadt li\u1ec7u d\u00e0y ho\u1eb7c c\u00f3 \u0111\u1ed9 b\u1ec1n cao, u\u1ed1n b\u1eb1ng kh\u00f4ng kh\u00ed c\u00f3 th\u1ec3 \u0111\u01a1n gi\u1ea3n l\u00e0 quy tr\u00ecnh sai. U\u1ed1n ch\u1ea1m \u0111\u00e1y ho\u1eb7c d\u1eadp \u0111\u1ed3ng t\u1eadp trung bi\u1ebfn d\u1ea1ng v\u00e0 c\u1ed1 \u0111\u1ecbnh b\u00e1n k\u00ednh, nh\u01b0ng ph\u1ea3i tr\u1ea3 gi\u00e1 b\u1eb1ng l\u1ef1c cao h\u01a1n nhi\u1ec1u v\u00e0 d\u1ee5ng c\u1ee5 chuy\u00ean d\u1ee5ng. C\u1ed1 \u201c\u0103n gian\u201d b\u00e1n k\u00ednh nh\u1ecf trong u\u1ed1n b\u1eb1ng kh\u00f4ng kh\u00ed b\u1eb1ng c\u00e1ch thu h\u1eb9p V l\u00e0 c\u00e1ch m\u00e0 khu\u00f4n b\u1ecb h\u1ecfng v\u00e0 g\u00f3c b\u1eaft \u0111\u1ea7u l\u1ec7ch.<\/p>\n\n\n\n

    Kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a khu\u00f4n quan tr\u1ecdng kh\u00f4ng k\u00e9m c\u00f4ng su\u1ea5t m\u00e1y. M\u00e9p ng\u1eafn tr\u00ean v\u1eadt li\u1ec7u d\u00e0y c\u00f3 th\u1ec3 t\u1eadp trung t\u1ea3i v\u01b0\u1ee3t qu\u00e1 m\u1ee9c \u0111\u00e1nh gi\u00e1 c\u1ee7a khu\u00f4n ngay c\u1ea3 khi m\u00e1y \u00e9p ch\u1ea5n c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c. Nhi\u1ec1u h\u1ecfng h\u00f3c d\u1ee5ng c\u1ee5 kh\u00f4ng x\u1ea3y ra v\u00ec kh\u00f4ng bi\u1ebft quy t\u1eafc \u2014 m\u00e0 v\u00ec kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c c\u1ee7a khu\u00f4n ch\u01b0a bao gi\u1edd \u0111\u01b0\u1ee3c ki\u1ec3m tra so v\u1edbi chi\u1ec1u d\u00e0i m\u00e9p v\u00e0 V \u0111\u00e3 ch\u1ecdn.<\/p>\n\n\n\n

    Khi kh\u00f4ng c\u00f3 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng n\u00e0o ph\u00f9 h\u1ee3p, c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang th\u01b0\u1eddng n\u1eb1m \u1edf kh\u00e2u tr\u01b0\u1edbc: ch\u1ea5p nh\u1eadn b\u00e1n k\u00ednh l\u1edbn h\u01a1n, thi\u1ebft k\u1ebf l\u1ea1i m\u00e9p, ho\u1eb7c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i v\u1eadt li\u1ec7u. L\u1ef1a ch\u1ecdn d\u1ee5ng c\u1ee5 c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft nhi\u1ec1u v\u1ea5n \u0111\u1ec1 \u2014 nh\u01b0ng kh\u00f4ng th\u1ec3 thay \u0111\u1ed5i v\u1eadt l\u00fd.<\/p>\n\n\n\n

    M\u1ed9t k\u1ef9 thu\u1eadt th\u1eed: Thay quy t\u1eafc b\u1eb1ng b\u00e0i ki\u1ec3m tra 10 ph\u00fat<\/h3>\n\n\n\n

    H\u1ea7u h\u1ebft c\u00e1c cu\u1ed9c th\u1ea3o lu\u1eadn v\u1ec1 ch\u1ecdn khu\u00f4n V b\u1ecf qua m\u1ed9t \u0111i\u1ec3m then ch\u1ed1t: h\u1ecd cho r\u1eb1ng t\u00ednh to\u00e1n thay th\u1ebf quan s\u00e1t. Trong th\u1ef1c t\u1ebf, nh\u1eefng x\u01b0\u1edfng \u0111\u00e1ng tin c\u1eady nh\u1ea5t s\u1ebd ch\u00ednh th\u1ee9c h\u00f3a m\u1ed9t b\u00e0i ki\u1ec3m tra ng\u1eafn ngay tr\u00ean m\u00e1y v\u00e0 coi \u0111\u00f3 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a thi\u1ebft l\u1eadp \u2014 kh\u00f4ng ph\u1ea3i kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1.<\/p>\n\n\n\n

    C\u1eaft m\u1ed9t m\u1eabu nh\u1ecf t\u1eeb l\u00f4 v\u1eadt li\u1ec7u th\u1ef1c t\u1ebf. U\u1ed1n n\u00f3 \u1edf gi\u1eefa V \u0111\u00e3 ch\u1ecdn b\u1eb1ng m\u0169i ch\u1ea5n d\u1ef1 \u0111\u1ecbnh \u1edf \u0111\u1ed9 s\u00e2u ram danh \u0111\u1ecbnh. \u0110o g\u00f3c, b\u00e1n k\u00ednh b\u00ean trong v\u00e0 \u0111\u1ed9 h\u1ed3i \u0111\u00e0n h\u1ed3i. N\u1ebfu k\u1ebft qu\u1ea3 sai, h\u00e3y thay \u0111\u1ed5i m\u1ed9t bi\u1ebfn s\u1ed1 t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m<\/em>\u2014 tr\u01b0\u1edbc ti\u00ean l\u00e0 m\u1edf V, sau \u0111\u00f3 l\u00e0 b\u00e1n k\u00ednh m\u0169i ch\u1ea5n, r\u1ed3i \u0111\u1ebfn ph\u01b0\u01a1ng ph\u00e1p \u2014 v\u00e0 l\u1eb7p l\u1ea1i. Hai ho\u1eb7c ba l\u1ea7n u\u1ed1n th\u01b0\u1eddng s\u1ebd h\u1ed9i t\u1ee5 v\u00e0o m\u1ed9t gi\u1ea3i ph\u00e1p \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n

    Chu tr\u00ecnh 10 ph\u00fat \u0111\u00f3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u m\u00e0 kh\u00f4ng quy t\u1eafc n\u00e0o c\u00f3 th\u1ec3: n\u00f3 l\u1eadp b\u1ea3n \u0111\u1ed3 h\u00e0nh vi th\u1ef1c c\u1ee7a v\u1eadt li\u1ec7u v\u1edbi d\u1ee5ng c\u1ee5 v\u00e0 m\u00e1y c\u1ee7a b\u1ea1n. Quy t\u1eafc 8\u00d7 gi\u00fap b\u1ea1n \u0111\u1ebfn g\u1ea7n. B\u00e0i ki\u1ec3m tra khi\u1ebfn n\u00f3 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

    B\u1ea3n v\u1ebd so v\u1edbi ph\u00f4i: Th\u00e0nh th\u1ea1o t\u00ednh kh\u1ea5u tr\u1eeb u\u1ed1n<\/h2>\n\n\n\n

    T\u1ea1i sao th\u1ee3 v\u1eadn h\u00e0nh laser gh\u00e9t c\u00e1c t\u00ednh to\u00e1n u\u1ed1n c\u1ee7a b\u1ea1n<\/h3>\n\n\n\n

    H\u1ea7u h\u1ebft c\u00e1c b\u1ea3n m\u1eabu ph\u1eb3ng th\u1ea5t b\u1ea1i tr\u01b0\u1edbc khi ch\u00fang k\u1ecbp \u0111\u1ebfn m\u00e1y \u00e9p ch\u1ea5n.<\/strong> Kh\u00f4ng ph\u1ea3i v\u00ec m\u00e1y ch\u1ea5n kh\u00f4ng \u0111\u1ea1t \u0111\u01b0\u1ee3c g\u00f3c, m\u00e0 v\u00ec m\u00e1y c\u1eaft laser b\u1ecb y\u00eau c\u1ea7u c\u1eaft m\u1ed9t \u0111i\u1ec1u h\u01b0 c\u1ea5u: m\u1ed9t gi\u00e1 tr\u1ecb kh\u1ea5u tr\u1eeb u\u1ed1n \u00e1p d\u1ee5ng cho c\u00e1c \u0111\u01b0\u1eddng u\u1ed1n c\u00f3 h\u00e0nh vi ho\u00e0n to\u00e0n kh\u00e1c nhau.<\/p>\n\n\n\n

    Tr\u00ean s\u00e0n x\u01b0\u1edfng, m\u1ed7i \u0111\u01b0\u1eddng u\u1ed1n l\u00e0 m\u1ed9t s\u1ef1 ki\u1ec7n c\u1ee5c b\u1ed9. Thay \u0111\u1ed5i m\u1edf khu\u00f4n \u0111\u1ec3 tr\u00e1nh m\u00e9p tr\u1ea3, si\u1ebft nh\u1ecf b\u00e1n k\u00ednh b\u00ean trong \u0111\u1ec3 ki\u1ec3m so\u00e1t h\u1ed3i \u0111\u00e0n h\u1ed3i, ho\u1eb7c chuy\u1ec3n t\u1eeb u\u1ed1n b\u1eb1ng kh\u00f4ng kh\u00ed sang u\u1ed1n ch\u1ea1m \u0111\u00e1y trong m\u1ed9t l\u1ea7n \u2014 v\u00e0 gi\u00e1 tr\u1ecb kh\u1ea5u tr\u1eeb c\u1ee7a \u0111\u01b0\u1eddng u\u1ed1n \u0111\u00f3 kh\u00f4ng c\u00f2n thay th\u1ebf \u0111\u01b0\u1ee3c. B\u1ea3n v\u1ebd v\u00e0 s\u01a1 \u0111\u1ed3 c\u1eaft th\u01b0\u1eddng gi\u1ea3 \u0111\u1ecbnh ng\u01b0\u1ee3c l\u1ea1i. K\u1ebft qu\u1ea3 l\u00e0 \u201cc\u00e1i ch\u1ebft b\u1edfi milimet\u201d: l\u1ed7i 1\u20132 mm m\u1ed7i \u0111\u01b0\u1eddng u\u1ed1n c\u1ed9ng d\u1ed3n th\u00e0nh m\u00e9p l\u1ec7ch, l\u1ed7 d\u00e0i b\u1ecb l\u1ec7ch, v\u00e0 th\u1ee3 laser bu\u1ed9c ph\u1ea3i c\u1eaft l\u1ea1i ph\u00f4i gi\u1eefa ch\u1eebng.<\/p>\n\n\n\n

    H\u00e3y xem m\u1ed9t chi ti\u1ebft \u0111\u01a1n gi\u1ea3n c\u00f3 hai \u0111\u01b0\u1eddng u\u1ed1n tr\u00ean th\u00e9p m\u1ec1m 3 mm. M\u1ed9t \u0111\u01b0\u1eddng u\u1ed1n t\u1ea1o tr\u00ean V nh\u1ecf \u0111\u1ec3 l\u1ea5y kho\u1ea3ng h\u1edf; \u0111\u01b0\u1eddng th\u1ee9 hai d\u00f9ng khu\u00f4n r\u1ed9ng h\u01a1n \u0111\u1ec3 tr\u00e1nh \u0111\u1ec3 l\u1ea1i v\u1ebft. B\u00e1n k\u00ednh b\u00ean trong kh\u00e1c nhau, n\u00ean kh\u1ea5u tr\u1eeb u\u1ed1n c\u0169ng ph\u1ea3i kh\u00e1c \u2014 BD1 v\u00e0 BD2. N\u1ebfu gi\u1ea3 \u0111\u1ecbnh ch\u00fang b\u1eb1ng nhau, m\u1ed9t m\u00e9p 90 mm + 65 mm s\u1ebd bi\u1ebfn th\u00e0nh m\u1ed9t ph\u00f4i ph\u1eb3ng 84,5 mm b\u1ecb ng\u1eafn 1,2 mm. Sai s\u00f3t kh\u00f4ng l\u1ed9 ra \u1edf m\u00e1y ch\u1ea5n; n\u00f3 xu\u1ea5t hi\u1ec7n \u1edf m\u00e1y laser, n\u01a1i 20% th\u00eam t\u1ea5m b\u1ecb ph\u1ebf v\u00ec s\u01a1 \u0111\u1ed3 c\u1eaft kh\u00f4ng c\u00f2n kh\u1edbp.<\/p>\n\n\n\n

    Th\u1ee3 laser kh\u00f4ng gh\u00e9t to\u00e1n \u2014 h\u1ecd gh\u00e9t to\u00e1n trung b\u00ecnh.<\/strong> C\u00e1ch kh\u1eafc ph\u1ee5c l\u00e0 theo quy tr\u00ecnh: tr\u1eeb m\u1ed9t n\u1eeda gi\u00e1 tr\u1ecb kh\u1ea5u tr\u1eeb u\u1ed1n kh\u1ecfi m\u1ed7i \u0111o\u1ea1n m\u00e9p, tr\u1eeb to\u00e0n b\u1ed9 gi\u00e1 tr\u1ecb kh\u1ea5u tr\u1eeb kh\u1ecfi b\u1ea5t k\u1ef3 ph\u1ea7n \u0111\u00e1y chung, v\u00e0 t\u00ednh to\u00e1n t\u1eebng \u0111\u01b0\u1eddng u\u1ed1n theo \u0111i\u1ec1u ki\u1ec7n ri\u00eang. M\u1ed9t \u0111\u00e1y d\u00e0i 6 inch v\u1edbi hai \u0111\u01b0\u1eddng u\u1ed1n kh\u00f4ng \u201cm\u1ea5t\u201d m\u1ed9t BD; n\u00f3 m\u1ea5t hai n\u1eeda BD. B\u1ecf qua \u0111i\u1ec1u \u0111\u00f3, v\u00e0 ph\u00f4i \u0111\u00e3 sai tr\u01b0\u1edbc khi c\u1eaft \u0111\u1ea7u ti\u00ean.<\/p>\n\n\n\n

    T\u00ednh tr\u1ee5c trung h\u00f2a: N\u01a1i kim lo\u1ea1i kh\u00f4ng b\u1ecb k\u00e9o gi\u00e3n hay n\u00e9n<\/h3>\n\n\n\n

    Tr\u1ee5c trung h\u00f2a kh\u00f4ng n\u1eb1m \u1edf gi\u1eefa t\u1ea5m.<\/strong> \u0110\u00f3 l\u00e0 \u0111\u01b0\u1eddng xuy\u00ean qua \u0111\u1ed9 d\u00e0y n\u01a1i v\u1eadt li\u1ec7u kh\u00f4ng b\u1ecb k\u00e9o gi\u00e3n \u1edf ph\u00eda ngo\u00e0i ho\u1eb7c n\u00e9n \u1edf ph\u00eda trong khi u\u1ed1n. V\u1ecb tr\u00ed c\u1ee7a n\u00f3 quy\u1ebft \u0111\u1ecbnh gi\u00e1 tr\u1ecb cho ph\u00e9p u\u1ed1n (BA) v\u00e0, theo \u0111\u00f3, kh\u1ea5u tr\u1eeb u\u1ed1n (BD). N\u1ebfu t\u00ednh sai, kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 \u0111i\u1ec1u ch\u1ec9nh g\u00f3c n\u00e0o c\u1ee9u \u0111\u01b0\u1ee3c ph\u00f4i ph\u1eb3ng c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

    Trong u\u1ed1n kh\u00f4ng ch\u1ea1m (air bending), tr\u1ee5c trung h\u00f2a th\u01b0\u1eddng n\u1eb1m gi\u1eefa 0,33T v\u00e0 0,5T t\u00ednh t\u1eeb m\u1eb7t trong, \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb d\u01b0\u1edbi d\u1ea1ng h\u1ec7 s\u1ed1 K. C\u00e1c g\u00f3c u\u1ed1n g\u1eaft k\u00e9o tr\u1ee5c n\u00e0y v\u00e0o trong; b\u00e1n k\u00ednh u\u1ed1n b\u00ean trong l\u1edbn h\u01a1n \u0111\u1ea9y n\u00f3 ra ngo\u00e0i. \u0110\u1ed9 b\u1ec1n v\u1eadt li\u1ec7u v\u00e0 h\u01b0\u1edbng th\u1edb c\u0169ng quan tr\u1ecdng kh\u00f4ng k\u00e9m. Th\u00e9p c\u00f3 gi\u1edbi h\u1ea1n ch\u1ea3y cao h\u01a1n c\u00f3 th\u1ec3 d\u1ecbch tr\u1ee5c trung h\u00f2a ra ngo\u00e0i t\u1eeb 10\u201315%, l\u00e0m gi\u00e3n c\u00e1c s\u1ee3i b\u00ean ngo\u00e0i nhi\u1ec1u h\u01a1n so v\u1edbi th\u00e9p m\u1ec1m v\u1edbi c\u00f9ng d\u1ee5ng c\u1ee5.<\/p>\n\n\n\n

    C\u00e1c ph\u00e9p to\u00e1n kh\u00f4ng cho ch\u1ed7 cho s\u1ef1 khoan dung. V\u1edbi g\u00f3c u\u1ed1n 90\u00b0, \u0111\u1ed9 d\u00e0i u\u1ed1n (bend allowance) \u0111\u01b0\u1ee3c t\u00ednh: BA = A(\u03c0\/180)(R + K\u00b7T). L\u1ea5y th\u00e9p 1018 d\u00e0y 2 mm v\u1edbi b\u00e1n k\u00ednh b\u00ean trong 2 mm v\u00e0 K = 0,40: BA cho ra 3,53 mm. Sai K ch\u1ec9 0,1, v\u00e0 m\u1ed9t \u0111o\u1ea1n d\u00e0i 100 mm s\u1ebd m\u1edf ra g\u1ea7n 101,8 mm. \u0110\u00e2y kh\u00f4ng ph\u1ea3i v\u1ea5n \u0111\u1ec1 l\u00e0m tr\u00f2n\u2014m\u00e0 l\u00e0 s\u1ef1 l\u1ec7ch h\u1ec7 th\u1ed1ng xu\u1ea5t hi\u1ec7n \u1edf t\u1eebng chi ti\u1ebft.<\/p>\n\n\n\n

    H\u1ea7u h\u1ebft c\u00e1c x\u01b0\u1edfng d\u1ef1a v\u00e0o gi\u00e1 tr\u1ecb m\u1eb7c \u0111\u1ecbnh c\u1ee7a ph\u1ea7n m\u1ec1m v\u1ed1n sai t\u1eeb thi\u1ebft k\u1ebf.<\/strong> H\u1ec7 th\u1ed1ng CAD\/CAM kh\u00f4ng bi\u1ebft g\u00ec v\u1ec1 l\u00f4 v\u1eadt li\u1ec7u th\u1ef1c t\u1ebf, h\u01b0\u1edbng th\u1edb, hay m\u1ee9c \u0111\u1ed9 m\u1ea1nh tay khi b\u1ea1n u\u1ed1n kh\u00f4ng ch\u1ea1m. M\u1ed9t th\u1eed nghi\u1ec7m t\u1ea1i x\u01b0\u1edfng trong 5 ph\u00fat s\u1ebd v\u01b0\u1ee3t qua m\u1ecdi c\u01a1 s\u1edf d\u1eef li\u1ec7u. U\u1ed1n m\u1ed9t d\u1ea3i th\u1eed c\u00f3 \u0111\u00e1nh d\u1ea5u, c\u1eaft n\u00f3 ra, v\u00e0 \u0111o v\u1ecb tr\u00ed c\u1ee7a \u0111\u01b0\u1eddng kh\u00f4ng b\u1ecb k\u00e9o gi\u00e3n so v\u1edbi m\u1eb7t trong. Chia kho\u1ea3ng c\u00e1ch \u0111\u00f3 cho chi\u1ec1u d\u00e0y\u2014\u0111\u00f3 l\u00e0 h\u1ec7 s\u1ed1 K th\u1ef1c c\u1ee7a b\u1ea1n. Ngay c\u1ea3 khi kh\u00f4ng kh\u1eafc, so s\u00e1nh s\u1ef1 t\u0103ng chi\u1ec1u d\u00e0i sau u\u1ed1n v\u1edbi gi\u00e1 tr\u1ecb t\u00ednh to\u00e1n s\u1ebd x\u00e1c \u0111\u1ecbnh K trong \u00b10,02. S\u1ef1 \u0111i\u1ec1u ch\u1ec9nh nh\u1ecf n\u00e0y lo\u1ea1i b\u1ecf h\u1ea7u h\u1ebft l\u1ed7i \u201cb\u00ed \u1ea9n\u201d \u1edf ph\u00f4i ph\u1eb3ng trong s\u1ea3n xu\u1ea5t h\u1ed7n h\u1ee3p v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

    T\u1ef1 x\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 K thay v\u00ec tin v\u00e0o gi\u00e1 tr\u1ecb m\u1eb7c \u0111\u1ecbnh c\u1ee7a ph\u1ea7n m\u1ec1m<\/h3>\n\n\n\n

    Gi\u00e1 tr\u1ecb m\u1eb7c \u0111\u1ecbnh l\u00e0 trung b\u00ecnh. S\u1ea3n xu\u1ea5t \u0111\u00f2i h\u1ecfi c\u1ee5 th\u1ec3.<\/strong> H\u1ec7 s\u1ed1 K 0,42 c\u00f3 th\u1ec3 \u201cch\u1ea5p nh\u1eadn\u201d chung cho th\u00e9p m\u1ec1m, nh\u01b0ng th\u01b0\u1eddng sai khi nh\u00e0 m\u00e1y, chi\u1ec1u d\u00e0y ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o h\u00ecnh thay \u0111\u1ed5i. Chi ph\u00ed kh\u00f4ng hi\u1ec7n ra d\u01b0\u1edbi d\u1ea1ng c\u1ea3nh b\u00e1o ph\u1ea7n m\u1ec1m\u2014n\u00f3 xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng ph\u1ebf ph\u1ea9m \u1edf chi ti\u1ebft \u0111\u1ea7u ti\u00ean v\u00e0 gia c\u00f4ng laser l\u1ea1i.<\/p>\n\n\n\n

    T\u1ef1 x\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 K l\u00e0 m\u1ed9t b\u00e0i t\u1eadp u\u1ed1n \u0111\u01a1n gi\u1ea3n. C\u1eaft m\u1ed9t ph\u00f4i ch\u1eef nh\u1eadt, l\u1eadp tr\u00ecnh g\u00f3c u\u1ed1n \u0111\u00e3 bi\u1ebft v\u1edbi d\u1ee5ng c\u1ee5 \u0111\u00e3 bi\u1ebft, v\u00e0 \u0111o chi\u1ec1u d\u00e0i ph\u00f4i ph\u1eb3ng th\u1ef1c t\u1ebf sau khi u\u1ed1n. Gi\u1ea3i K b\u1eb1ng ph\u01b0\u01a1ng tr\u00ecnh \u0111\u1ed9 d\u00e0i u\u1ed1n v\u1edbi k\u00edch th\u01b0\u1edbc th\u1ef1c, kh\u00f4ng ph\u1ea3i \u0111\u01b0\u1eddng khu\u00f4n danh ngh\u0129a. L\u1eb7p l\u1ea1i th\u1eed nghi\u1ec7m b\u1ea5t c\u1ee9 khi n\u00e0o thay \u0111\u1ed5i v\u1eadt li\u1ec7u, kho\u1ea3ng chi\u1ec1u d\u00e0y ho\u1eb7c ph\u01b0\u01a1ng ph\u00e1p u\u1ed1n. U\u1ed1n kh\u00f4ng ch\u1ea1m, u\u1ed1n ch\u1ea1m \u0111\u00e1y, v\u00e0 \u00e9p (coining) kh\u00f4ng d\u00f9ng chung h\u1ec7 s\u1ed1 K; ri\u00eang \u00e9p c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u1ed9 tr\u1eeb u\u1ed1n kho\u1ea3ng 20% do n\u00e9n xuy\u00ean chi\u1ec1u d\u00e0y.<\/p>\n\n\n\n

    D\u1eef li\u1ec7u th\u1ef1c nghi\u1ec7m c\u1ee7ng c\u1ed1 \u0111i\u1ec1u n\u00e0y. Th\u00e9p 1018 m\u1ec1m th\u01b0\u1eddng c\u00f3 K \u2248 0,40 khi u\u1ed1n kh\u00f4ng ch\u1ea1m, gi\u1ea3m xu\u1ed1ng kho\u1ea3ng 0,35 khi u\u1ed1n ch\u1ea1m \u0111\u00e1y v\u00e0 0,30 khi \u00e9p. Th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng cao h\u01a1n\u2014g\u1ea7n 0,45 khi u\u1ed1n kh\u00f4ng ch\u1ea1m\u2014v\u1edbi \u0111\u1ed9 \u0111\u00e0n h\u1ed3i tr\u1edf l\u1ea1i l\u1edbn h\u01a1n, \u0111\u00f2i h\u1ecfi b\u00f9 th\u00eam g\u00f3c u\u1ed1n. Th\u00e9p HRPO c\u01b0\u1eddng \u0111\u1ed9 cao c\u00f3 th\u1ec3 v\u01b0\u1ee3t 0,48, gi\u1ea3i th\u00edch v\u00ec sao b\u1ea3ng d\u1eef li\u1ec7u chung sai kho\u1ea3ng n\u1eeda milim\u00e9t v\u1edbi ph\u00f4i d\u00e0y 6 mm.<\/p>\n\n\n\n

    S\u1ef1 b\u1ea5t ng\u1edd:<\/strong> h\u1ea7u h\u1ebft c\u00e1c b\u00e0i vi\u1ebft coi h\u1ec7 s\u1ed1 K l\u00e0 t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u. Nh\u01b0ng kh\u00f4ng ph\u1ea3i. N\u00f3 l\u00e0 d\u1ea5u hi\u1ec7u quy tr\u00ecnh\u2014k\u1ebft qu\u1ea3 k\u1ebft h\u1ee3p c\u1ee7a v\u1eadt li\u1ec7u, d\u1ee5ng c\u1ee5, v\u00e0 ph\u01b0\u01a1ng ph\u00e1p. Khi c\u00e1c x\u01b0\u1edfng ki\u1ec3m tra v\u00e0 c\u1ed1 \u0111\u1ecbnh K theo l\u00f4 v\u00e0 quy tr\u00ecnh, \u0111\u1ed9 tr\u1eeb u\u1ed1n kh\u00f4ng c\u00f2n l\u00e0 ki\u1ebfn th\u1ee9c truy\u1ec1n mi\u1ec7ng m\u00e0 tr\u1edf th\u00e0nh ti\u00eau chu\u1ea9n. M\u1ed9t nh\u00e0 gia c\u00f4ng \u0111\u00e3 gi\u1ea3m ph\u1ebf ph\u1ea9m \u1edf chi ti\u1ebft \u0111\u1ea7u ti\u00ean t\u1eeb 15% xu\u1ed1ng c\u00f2n 2% ch\u1ec9 b\u1eb1ng c\u00e1ch x\u00e1c \u0111\u1ecbnh K tr\u01b0\u1edbc khi x\u1ebfp ph\u00f4i v\u00e0 \u0111\u01b0a c\u00e1c gi\u00e1 tr\u1ecb n\u00e0y v\u00e0o ch\u01b0\u01a1ng tr\u00ecnh CNC. M\u00e1y laser v\u1eabn nh\u01b0 c\u0169. Ph\u00f4i kh\u00f4ng thay \u0111\u1ed5i.<\/p>\n\n\n\n

    Gi\u1edbi h\u1ea1n t\u1ea3i: B\u1ea3o v\u1ec7 m\u00e1y v\u00e0 d\u1ee5ng c\u1ee5<\/h2>\n\n\n\n

    H\u1ea7u h\u1ebft c\u00e1c h\u1ecfng h\u00f3c \u1edf m\u00e1y ch\u1ea5n kh\u00f4ng b\u1eaft ngu\u1ed3n t\u1eeb t\u00ednh to\u00e1n sai. Ch\u00fang x\u1ea3y ra v\u00ec x\u01b0\u1edfng cho r\u1eb1ng t\u1ea3i trung b\u00ecnh \u00e1p d\u1ee5ng \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean to\u00e0n b\u1ed9 u\u1ed1n. Kh\u00f4ng ph\u1ea3i. T\u1ea3i l\u00e0 c\u1ee5c b\u1ed9, ph\u1ee5 thu\u1ed9c ph\u01b0\u01a1ng ph\u00e1p, v\u00e0 c\u1ef1c k\u1ef3 kh\u1eafc nghi\u1ec7t khi t\u1eadp trung. \u0110\u00e2y l\u00e0 gi\u1edbi h\u1ea1n m\u00e0 c\u00e1c x\u01b0\u1edfng ho\u1eb7c b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb\u2014ho\u1eb7c \u00e2m th\u1ea7m r\u00fat ng\u1eafn tu\u1ed5i th\u1ecd c\u1ee7a n\u00f3.<\/p>\n\n\n\n

    C\u00f4ng th\u1ee9c t\u1ea3i t\u1ea1i x\u01b0\u1edfng (kh\u00f4ng k\u00e8m l\u00fd thuy\u1ebft s\u00e1ch gi\u00e1o khoa)<\/h3>\n\n\n\n

    B\u1ecf qua l\u00fd thuy\u1ebft v\u00e0 quy t\u1eafc t\u1ea3i u\u1ed1n kh\u00f4ng ch\u1ea1m r\u1ea5t \u0111\u01a1n gi\u1ea3n: l\u1ef1c t\u0103ng theo b\u00ecnh ph\u01b0\u01a1ng chi\u1ec1u d\u00e0y v\u1eadt li\u1ec7u v\u00e0 gi\u1ea3m khi kh\u1ea9u \u0111\u1ed9 V m\u1edf r\u1ed9ng. M\u1ecdi y\u1ebfu t\u1ed1 kh\u00e1c ch\u1ec9 l\u00e0 h\u1ec7 s\u1ed1 \u0111i\u1ec1u ch\u1ec9nh.<\/p>\n\n\n\n

    Phi\u00ean b\u1ea3n th\u1ef1c t\u1ebf, c\u1ea5p x\u01b0\u1edfng c\u1ee7a c\u00f4ng th\u1ee9c u\u1ed1n kh\u00f4ng ch\u1ea1m nh\u01b0 sau:<\/p>\n\n\n\n

    T\u1ea3i y\u00eau c\u1ea7u \u221d (h\u1ec7 s\u1ed1 v\u1eadt li\u1ec7u) \u00d7 chi\u1ec1u d\u00e0y\u00b2 \u00d7 chi\u1ec1u d\u00e0i u\u1ed1n \u00f7 kh\u1ea9u \u0111\u1ed9 V<\/strong><\/p>\n\n\n\n

    \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao g\u1ea5p \u0111\u00f4i chi\u1ec1u d\u00e0y kh\u00f4ng ch\u1ec9 g\u1ea5p \u0111\u00f4i l\u1ef1c\u2014m\u00e0 g\u1ea5p b\u1ed1n. V\u00e0 \u0111\u00f3 l\u00e0 l\u00fd do m\u1edf r\u1ed9ng khu\u00f4n l\u00e0 c\u00e1ch nhanh nh\u1ea5t \u0111\u1ec3 gi\u1ea3m t\u1ea3i m\u00e0 kh\u00f4ng thay \u0111\u1ed5i h\u00ecnh h\u1ecdc chi ti\u1ebft.<\/p>\n\n\n\n

    D\u00f9ng th\u00e9p m\u1ec1m l\u00e0m chu\u1ea9n g\u1ed1c. Khi c\u01b0\u1eddng \u0111\u1ed9 k\u00e9o t\u0103ng, nh\u00e2n t\u01b0\u01a1ng \u1ee9ng. Th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 th\u00e9p c\u01b0\u1eddng \u0111\u1ed9 cao l\u00e0m t\u1ea3i t\u0103ng nhanh; nh\u00f4m k\u00e9o t\u1ea3i xu\u1ed1ng. Ph\u00e9p to\u00e1n kh\u00f4ng c\u1ea7n ho\u00e0n h\u1ea3o \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u00e1y\u2014n\u00f3 c\u1ea7n trung th\u1ef1c v\u1ec1 m\u1ee9c \u0111\u1ed9.<\/p>\n\n\n\n

    L\u1ef1a ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p nh\u00e2n \u0111\u00f4i m\u1ecdi th\u1ee9.<\/strong> U\u1ed1n kh\u00f4ng kh\u00ed l\u00e0 ti\u00eau chu\u1ea9n c\u01a1 b\u1ea3n. U\u1ed1n ch\u1ea1m \u0111\u00e1y th\u01b0\u1eddng c\u1ea7n l\u1ef1c u\u1ed1n g\u1ea5p ba \u0111\u1ebfn n\u0103m l\u1ea7n so v\u1edbi u\u1ed1n kh\u00f4ng kh\u00ed. U\u1ed1n \u00e9p c\u00f3 th\u1ec3 \u0111\u00f2i h\u1ecfi l\u1ef1c g\u1ea5p t\u00e1m \u0111\u1ebfn m\u01b0\u1eddi l\u1ea7n. Chuy\u1ec3n t\u1eeb u\u1ed1n kh\u00f4ng kh\u00ed sang u\u1ed1n ch\u1ea1m \u0111\u00e1y \u0111\u1ec3 \u201cs\u1eeda\u201d \u0111\u1ed9 nh\u1ea5t qu\u00e1n g\u00f3c\u2014m\u00e0 kh\u00f4ng ki\u1ec3m tra l\u1ea1i l\u1ef1c u\u1ed1n\u2014l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e1ch nhanh nh\u1ea5t \u0111\u1ec3 l\u00e0m qu\u00e1 t\u1ea3i m\u00e1y ch\u1ea5n.<\/p>\n\n\n\n

    M\u1ed9t quy t\u1eafc s\u1ea3n xu\u1ea5t th\u1ef1c t\u1ebf l\u00e0 duy tr\u00ec \u00edt nh\u1ea5t 20% dung l\u01b0\u1ee3ng d\u1ef1 ph\u00f2ng so v\u1edbi l\u1ef1c t\u00ednh to\u00e1n. N\u1ebfu m\u1ed9t c\u00f4ng vi\u1ec7c ch\u1ec9 v\u1eadn h\u00e0nh an to\u00e0n \u1edf m\u1ee9c gi\u1edbi h\u1ea1n c\u1ee7a m\u00e1y, th\u00ec n\u00f3 kh\u00f4ng an to\u00e0n\u2014ch\u1ec9 l\u00e0 th\u00e0nh c\u00f4ng t\u1ea1m th\u1eddi m\u00e0 th\u00f4i.<\/p>\n\n\n\n

    V\u00ed d\u1ee5 nhanh:<\/strong> M\u1ed9t \u0111o\u1ea1n u\u1ed1n d\u00e0i 1 m tr\u00ean th\u00e9p m\u1ec1m d\u00e0y 4 mm, s\u1eed d\u1ee5ng khe V kho\u1ea3ng g\u1ea5p m\u01b0\u1eddi l\u1ea7n \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u, n\u1eb1m ho\u00e0n to\u00e0n trong gi\u1edbi h\u1ea1n u\u1ed1n kh\u00f4ng kh\u00ed. Chuy\u1ec3n c\u00f9ng thi\u1ebft l\u1eadp \u0111\u00f3 sang u\u1ed1n ch\u1ea1m \u0111\u00e1y v\u00e0 l\u1ef1c u\u1ed1n t\u0103ng l\u00ean g\u1ea5p nhi\u1ec1u l\u1ea7n. N\u1ebfu u\u1ed1n \u00e9p, l\u1ef1c c\u1ea7n thi\u1ebft c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 m\u1ee9c \u0111\u00e1nh gi\u00e1 c\u1ee7a m\u00e1y\u2014ngay c\u1ea3 khi kh\u00f4ng c\u00f3 g\u00ec thay \u0111\u1ed5i \u1edf chi ti\u1ebft tr\u00f4ng<\/em> n\u1eb7ng h\u01a1n. V\u1eadt li\u1ec7u kh\u00f4ng thay \u0111\u1ed5i. Ph\u01b0\u01a1ng ph\u00e1p th\u00ec c\u00f3.<\/p>\n\n\n\n

    B\u1eaby \u201cL\u1ef1c U\u1ed1n H\u1ea1 Ch\u00ecm\u201d: T\u1ea3i tr\u1ecdng t\u1eadp trung tr\u00ean g\u1edd ng\u1eafn<\/h3>\n\n\n\n

    \u0110\u00e2y l\u00e0 d\u1ea1ng h\u1ecfng h\u00f3c m\u00e0 h\u1ea7u h\u1ebft c\u00e1c b\u00e0i vi\u1ebft b\u1ecf qua: l\u1ef1c u\u1ed1n h\u1ea1 ch\u00ecm<\/strong>. N\u00f3 x\u1ea3y ra khi m\u1ed9t g\u1edd ng\u1eafn ho\u1eb7c h\u1eb9p t\u1eadp trung l\u1ef1c v\u00e0o di\u1ec7n t\u00edch ti\u1ebfp x\u00fac r\u1ea5t nh\u1ecf, khi\u1ebfn t\u1ea3i tr\u1ecdng c\u1ee5c b\u1ed9 v\u01b0\u1ee3t qu\u00e1 m\u1ee9c khung ho\u1eb7c d\u1ee5ng c\u1ee5 ch\u1ecbu \u0111\u01b0\u1ee3c\u2014even khi l\u1ef1c u\u1ed1n \u0111\u00e3 t\u00ednh to\u00e1n cho to\u00e0n b\u1ed9 \u0111o\u1ea1n u\u1ed1n c\u00f3 v\u1ebb ho\u00e0n to\u00e0n an to\u00e0n.<\/p>\n\n\n\n

    H\u1ea7u h\u1ebft c\u00e1c m\u00e1y t\u00ednh l\u1ef1c u\u1ed1n gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng t\u1ea3i \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 tr\u00ean m\u1ed9t \u0111o\u1ea1n u\u1ed1n kh\u00e1 d\u00e0i. H\u1ecd t\u00ednh l\u1ef1c tr\u00ean \u0111\u01a1n v\u1ecb chi\u1ec1u d\u00e0i v\u00e0 sau \u0111\u00f3 nh\u00e2n v\u1edbi chi\u1ec1u d\u00e0i u\u1ed1n \u0111\u1ea7y \u0111\u1ee7. Logic n\u00e0y b\u1ecb ph\u00e1 v\u1ee1 khi chi\u1ec1u d\u00e0i ti\u1ebfp x\u00fac hi\u1ec7u qu\u1ea3<\/em> ng\u1eafn\u2014thanh, g\u1edd h\u1eb9p, g\u1edd u\u1ed1n h\u1ed3i nh\u1ecf, ho\u1eb7c c\u00e1c \u0111o\u1ea1n u\u1ed1n m\u1ed9t ph\u1ea7n kh\u00f4ng bao gi\u1edd s\u1eed d\u1ee5ng h\u1ebft chi\u1ec1u r\u1ed9ng khu\u00f4n.<\/p>\n\n\n\n

    M\u00e1y kh\u00f4ng c\u1ea3m nh\u1eadn \u201cl\u1ef1c u\u1ed1n trung b\u00ecnh.\u201d N\u00f3 ch\u1ec9 c\u1ea3m nh\u1eadn l\u1ef1c t\u1ea1i n\u01a1i ch\u00e0y th\u1ef1c s\u1ef1 ch\u1ea1m v\u00e0o v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

    \u0110\u1ec3 ph\u00e1t hi\u1ec7n b\u1eaby tr\u01b0\u1edbc khi n\u00f3 s\u1eadp, h\u00e3y th\u1ef1c hi\u1ec7n hai b\u01b0\u1edbc ki\u1ec3m tra \u0111\u01a1n gi\u1ea3n:<\/p>\n\n\n\n

      \n
    1. T\u00ednh l\u1ef1c u\u1ed1n tr\u00ean \u0111\u01a1n v\u1ecb chi\u1ec1u d\u00e0i theo c\u00e1ch th\u00f4ng th\u01b0\u1eddng.<\/li>\n\n\n\n
    2. \u00c1p l\u1ef1c \u0111\u00f3 v\u00e0o chi\u1ec1u d\u00e0i ti\u1ebfp x\u00fac th\u1ef1c t\u1ebf<\/strong>\u2014g\u1edd h\u1eb9p ho\u1eb7c v\u00f9ng ch\u00e0y th\u1ef1c s\u1ef1 ti\u1ebfp x\u00fac.<\/li>\n<\/ol>\n\n\n\n

      N\u1ebfu l\u1ef1c c\u1ee5c b\u1ed9 \u0111\u00f3 b\u1eaft \u0111\u1ea7u ti\u1ebfn g\u1ea7n \u0111\u1ebfn m\u1ee9c gi\u1edbi h\u1ea1n c\u1ee7a d\u1ee5ng c\u1ee5 ho\u1eb7c gi\u1edbi h\u1ea1n theo \u0111i\u1ec3m c\u1ee7a m\u00e1y, b\u1ea1n \u0111\u00e3 \u1edf trong v\u00f9ng nguy hi\u1ec3m\u2014even khi t\u1ed5ng s\u1ed1 l\u1ef1c v\u1eabn tr\u00f4ng c\u00f3 v\u1ebb ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n

      C\u00e1c s\u1eeda ch\u1eefa l\u00e0 c\u01a1 h\u1ecdc, kh\u00f4ng ph\u1ea3i to\u00e1n h\u1ecdc.<\/strong> M\u1edf khu\u00f4n V \u0111\u1ec3 gi\u1ea3m l\u1ef1c. Chuy\u1ec3n t\u1eeb \u00e9p \u0111\u00e1y tr\u1edf l\u1ea1i \u00e9p u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y (air bending). Th\u00eam gi\u00e1 \u0111\u1ee1 ho\u1eb7c d\u1ee5ng c\u1ee5 b\u1ed5 tr\u1ee3 \u0111\u1ec3 ph\u00e2n t\u00e1n t\u1ea3i. Ho\u1eb7c chia nh\u1ecf thao t\u00e1c \u0111\u1ec3 kh\u00f4ng c\u00fa \u0111\u00e1nh n\u00e0o t\u1eadp trung to\u00e0n b\u1ed9 \u1ee9ng su\u1ea5t. \u0110i\u1ec1u kh\u00f4ng bao gi\u1edd hi\u1ec7u qu\u1ea3 l\u00e0 b\u1ecf qua r\u1ee7i ro ch\u1ec9 v\u00ec bi\u1ec3n t\u00ean ghi r\u1eb1ng b\u1ea1n \u201c\u0111ang trong gi\u1edbi h\u1ea1n\u201d.\u201d<\/p>\n\n\n\n

      \u0110\u1ecdc \u0111\u01b0\u1eddng cong gi\u1edbi h\u1ea1n t\u1ea3i \u0111\u1ec3 ng\u0103n n\u1ee9t khung<\/h3>\n\n\n\n

      T\u1ea3i tr\u1ecdng ghi tr\u00ean b\u1ea3ng t\u00ean kh\u00f4ng ph\u1ea3i gi\u1ea5y ph\u00e9p\u2014n\u00f3 ch\u1ec9 l\u00e0 ti\u00eau \u0111\u1ec1. Ch\u1eef nh\u1ecf n\u1eb1m trong \u0111\u01b0\u1eddng cong gi\u1edbi h\u1ea1n t\u1ea3i.<\/p>\n\n\n\n

      M\u1ed7i m\u00e1y ch\u1ea5n \u0111\u1ec1u c\u00f3 m\u1ed9t \u0111\u01b0\u1eddng cong cho th\u1ea5y t\u1ea3i tr\u1ecdng cho ph\u00e9p so v\u1edbi \u0111\u1ed9 m\u1edf V ho\u1eb7c chi\u1ec1u d\u00e0i u\u1ed1n. N\u00f3 t\u1ed3n t\u1ea1i v\u00ec \u1ee9ng su\u1ea5t khung kh\u00f4ng tuy\u1ebfn t\u00ednh. Khu\u00f4n h\u1eb9p, u\u1ed1n ng\u1eafn ho\u1eb7c t\u1ea3i l\u1ec7ch t\u00e2m \u0111\u1ec1u l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ecbu c\u1ee7a m\u00e1y\u2014even khi t\u1ed5ng t\u1ea3i tr\u1ecdng v\u1eabn d\u01b0\u1edbi m\u1ee9c t\u1ed1i \u0111a \u0111\u00e3 \u0111\u1ecbnh.<\/p>\n\n\n\n

      Hai sai l\u1ea7m d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng t\u1ed1n k\u00e9m. \u0110\u1ea7u ti\u00ean<\/strong>, gi\u1ea3 \u0111\u1ecbnh c\u00f4ng su\u1ea5t \u0111\u1ecbnh m\u1ee9c \u00e1p d\u1ee5ng cho m\u1ecdi thi\u1ebft l\u1eadp. H\u1ea7u h\u1ebft \u0111\u1ecbnh m\u1ee9c gi\u1ea3 \u0111\u1ecbnh t\u1ea3i tr\u1ecdng ph\u00e2n b\u1ed1 \u0111\u1ec1u to\u00e0n chi\u1ec1u d\u00e0i v\u1edbi m\u1ed9t \u0111\u1ed9 m\u1edf V c\u1ee5 th\u1ec3; thay \u0111\u1ed5i thi\u1ebft l\u1eadp th\u00ec t\u1ea3i tr\u1ecdng cho ph\u00e9p gi\u1ea3m. Th\u1ee9 hai<\/strong>, ch\u1ec9 t\u1eadp trung v\u00e0o kh\u1ea3 n\u0103ng khung. D\u1ee5ng c\u1ee5, h\u1ec7 th\u1ed1ng k\u1eb9p v\u00e0 gi\u00e1 gi\u1eef ch\u00e0y th\u01b0\u1eddng h\u1ecfng l\u00e2u tr\u01b0\u1edbc khi khung b\u1ecb.<\/p>\n\n\n\n

      N\u1ebfu t\u1ea3i tr\u1ecdng t\u00ednh to\u00e1n c\u1ee7a b\u1ea1n ch\u1ec9 v\u1eeba ch\u1ea1m \u0111\u1ec9nh c\u1ee7a \u0111\u01b0\u1eddng cong t\u1ea3i cho \u0111\u1ed9 m\u1edf V \u0111\u00e3 ch\u1ecdn, \u0111\u00f3 kh\u00f4ng ph\u1ea3i \u0111\u00e8n xanh\u2014m\u00e0 l\u00e0 c\u1ea3nh b\u00e1o. T\u0103ng \u0111\u1ed9 m\u1edf V, chia nh\u1ecf u\u1ed1n, ho\u1eb7c thay \u0111\u1ed5i ph\u01b0\u01a1ng ph\u00e1p t\u1ea1o h\u00ecnh. C\u00f4ng su\u1ea5t l\u1edbn h\u01a1n s\u1ebd kh\u00f4ng c\u1ee9u khung kh\u1ecfi \u1ee9ng su\u1ea5t m\u00e0 n\u00f3 ch\u01b0a bao gi\u1edd \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ch\u1ecbu.<\/p>\n\n\n\n

      Gi\u1edbi h\u1ea1n d\u1ee5ng c\u1ee5 c\u0169ng quan tr\u1ecdng kh\u00f4ng k\u00e9m. Khu\u00f4n \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c t\u1ea3i t\u1ed1i \u0111a tr\u00ean m\u1ed7i \u0111\u01a1n v\u1ecb chi\u1ec1u d\u00e0i; v\u01b0\u1ee3t qu\u00e1 v\u00e0 khu\u00f4n c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng ho\u1eb7c n\u1ee9t v\u0129nh vi\u1ec5n. Ch\u00e0y v\u1edbi b\u00e1n k\u00ednh m\u0169i nh\u1ecf l\u00e0m gia t\u0103ng \u1ee9ng su\u1ea5t, v\u00e0 d\u01b0\u1edbi t\u1ea3i cao ch\u00fang bi\u1ebfn d\u1ea1ng ho\u1eb7c m\u1ebb. C\u00e1c h\u01b0\u1edbng d\u1eabn v\u1ec1 b\u00e1n k\u00ednh m\u0169i ch\u00e0y t\u1ed1i thi\u1ec3u t\u1ed3n t\u1ea1i v\u00ec l\u00fd do\u2014h\u00e3y theo gi\u1edbi h\u1ea1n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t, kh\u00f4ng theo c\u1ea3m t\u00ednh.<\/p>\n\n\n\n

      B\u01b0\u1edbc ngo\u1eb7t b\u1ea5t ng\u1edd:<\/strong> H\u1ea7u h\u1ebft x\u01b0\u1edfng cho r\u1eb1ng s\u1ef1 c\u1ed1 t\u1ea3i tr\u1ecdng s\u1ebd b\u00e1o tr\u01b0\u1edbc b\u1eb1ng c\u1ea3nh b\u00e1o, m\u00e3 l\u1ed7i, ho\u1eb7c c\u1ea7n ch\u1ea5n b\u1ecb k\u1eb9t. Th\u1ef1c t\u1ebf, h\u01b0 h\u1ecfng di\u1ec5n ra d\u1ea7n d\u1ea7n v\u00e0 \u00e2m th\u1ea7m\u2014khung b\u1ecb gi\u00e3n nh\u1eb9, khu\u00f4n t\u1eeb t\u1eeb m\u1edf, ch\u00e0y m\u1ea5t c\u1ea1nh s\u1eafc. Khi \u0111\u1ed9 ch\u00ednh x\u00e1c b\u1eaft \u0111\u1ea7u l\u1ec7ch, m\u00e1y \u0111\u00e3 tr\u1ea3 gi\u00e1 r\u1ed3i. Hi\u1ec3u gi\u1edbi h\u1ea1n t\u1ea3i tr\u1ecdng kh\u00f4ng ph\u1ea3i \u0111\u1ec3 t\u1ea1o ra c\u00fa u\u1ed1n h\u00f4m nay; m\u00e0 l\u00e0 \u0111\u1ec3 ch\u1ea1y ti\u1ebfp m\u01b0\u1eddi ng\u00e0n chi ti\u1ebft t\u1edbi m\u00e0 kh\u00f4ng h\u1ed1i h\u1eadn.<\/p>\n\n\n\n

      Ki\u1ec3m tra Th\u1ef1c t\u1ebf V\u1eadt li\u1ec7u: V\u00ec sao th\u00e9p kh\u00f4ng bao gi\u1edd u\u1ed1n gi\u1ed1ng nhau hai l\u1ea7n<\/h2>\n\n\n\n

      Gi\u1edbi h\u1ea1n ch\u1ea3y, h\u01b0\u1edbng h\u1ea1t, v\u00e0 t\u1ea1i sao ch\u1ee9ng ch\u1ec9 nh\u00e0 m\u00e1y l\u1ea1i quan tr\u1ecdng<\/h3>\n\n\n\n

      N\u1ebfu t\u1ea3i tr\u1ecdng quy\u1ebft \u0111\u1ecbnh m\u00e1y s\u1ed1ng s\u00f3t, th\u00ec th\u1ef1c t\u1ebf v\u1eadt li\u1ec7u quy\u1ebft \u0111\u1ecbnh chi ti\u1ebft c\u00f3 \u0111\u00fang hay kh\u00f4ng. Gi\u1edbi h\u1ea1n ch\u1ea3y l\u00e0 ng\u01b0\u1ee1ng khi th\u00e9p ng\u1eebng \u1ee9ng x\u1eed \u0111\u00e0n h\u1ed3i v\u00e0 b\u1eaft \u0111\u1ea7u gi\u1eef u\u1ed1n v\u0129nh vi\u1ec5n\u2014v\u00e0 ng\u01b0\u1ee1ng \u0111\u00f3 kh\u00f4ng c\u1ed1 \u0111\u1ecbnh. B\u00e1o c\u00e1o th\u1eed nghi\u1ec7m nh\u00e0 m\u00e1y (MTR) cho bi\u1ebft th\u00e9p th\u1ef1c s\u1ef1 l\u00e0 g\u00ec, kh\u00f4ng ph\u1ea3i th\u1ee9 \u0111\u01a1n h\u00e0ng \u0111\u00e3 gi\u1ea3 \u0111\u1ecbnh.<\/p>\n\n\n\n

      Th\u00e9p c\u00e1n ngu\u1ed9i 1018 th\u01b0\u1eddng ch\u1ee9ng nh\u1eadn kho\u1ea3ng 370 N\/mm\u00b2, nh\u01b0ng l\u00f4 th\u1ef1c t\u1ebf th\u01b0\u1eddng cao h\u01a1n 10\u201320% do gi\u1ea3m chi\u1ec1u c\u00e1n v\u00e0 t\u00f4i luy\u1ec7n b\u1eb1ng bi\u1ebfn d\u1ea1ng. Kho\u1ea3ng ch\u00eanh n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0 l\u00fd thuy\u1ebft\u2014n\u00f3 \u0111\u1ee7 bi\u1ebfn m\u1ed9t c\u00fa u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y 90\u00b0 \u201cho\u00e0n h\u1ea3o\u201d th\u00e0nh chi ti\u1ebft 88\u00b0 sau h\u1ed3i u\u1ed1n. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111\u1ed5 l\u1ed7i cho d\u1ee5ng c\u1ee5. Th\u1ef1c ra, th\u00e9p m\u1edbi l\u00e0 bi\u1ebfn s\u1ed1.<\/p>\n\n\n\n

      H\u01b0\u1edbng h\u1ea1t khu\u1ebfch \u0111\u1ea1i hi\u1ec7u \u1ee9ng. Th\u00e9p t\u1ea5m \u0111\u01b0\u1ee3c c\u00e1n, l\u00e0m h\u1ea1t d\u00e0i ra theo h\u01b0\u1edbng c\u00e1n. U\u1ed1n song song h\u01b0\u1edbng \u0111\u00f3 th\u00ec c\u00e1c h\u1ea1t \u0111\u00e3 k\u00e9o d\u00e0i ch\u1ed1ng n\u00e9n kh\u00f4ng \u0111\u1ec1u, g\u00e2y h\u1ed3i u\u1ed1n nhi\u1ec1u h\u01a1n 15\u201325% so v\u1edbi u\u1ed1n ch\u00e9o h\u1ea1t. U\u1ed1n vu\u00f4ng g\u00f3c h\u1ea1t th\u00ec c\u1ea5u tr\u00fac s\u1eadp \u0111\u1ec1u h\u01a1n, gi\u1eef g\u00f3c \u1ed5n \u0111\u1ecbnh h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n

      \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00fd thuy\u1ebft\u2014m\u00e0 l\u00e0 to\u00e1n h\u1ecdc ph\u1ebf li\u1ec7u. Kho\u1ea3ng ba ph\u1ea7n t\u01b0 c\u00e1c c\u00fa u\u1ed1n kh\u00f4ng \u0111\u1ec1u c\u00f3 th\u1ec3 truy v\u1ec1 vi\u1ec7c b\u1ecf qua ch\u1ee9ng ch\u1ec9 nh\u00e0 m\u00e1y v\u00e0 h\u01b0\u1edbng h\u1ea1t. Nh\u1eefng b\u1ea5t ng\u1edd \u0111\u1ed9 b\u1ec1n cao l\u00e0 t\u1ec7 nh\u1ea5t: m\u1ed9t l\u00f4 DP980 l\u1ecdt v\u00e0o c\u00f4ng vi\u1ec7c \u201cth\u00e9p m\u1ec1m\u201d c\u00f3 th\u1ec3 c\u1ea7n kho\u1ea3ng g\u1ea5p 2,5 l\u1ea7n \u0111\u1ed9 u\u1ed1n b\u00f9 so v\u1edbi A36 \u0111\u1ec3 \u0111\u1ea1t c\u00f9ng g\u00f3c cu\u1ed1i.<\/p>\n\n\n\n

      Th\u1ef1c t\u1ebf th\u1ef1c ti\u1ec5n:<\/strong> \u0110\u00e1nh d\u1ea5u h\u01b0\u1edbng th\u1edb tr\u01b0\u1edbc khi t\u1ea5m kim lo\u1ea1i \u0111\u1ebfn m\u00e1y u\u1ed1n. M\u1ed9t v\u1ebft s\u01b0\u1edbt nhanh b\u1eb1ng d\u0169a tr\u00ean b\u1ec1 m\u1eb7t s\u1ebd l\u1eadp t\u1ee9c cho th\u1ea5y h\u01b0\u1edbng th\u1edb. Kh\u00f4ng c\u00f3 th\u00f4ng tin tr\u00ean pallet? H\u00e3y gi\u1ea3 \u0111\u1ecbnh c\u00f3 s\u1ef1 bi\u1ebfn \u0111\u1ed5i, l\u00ean k\u1ebf ho\u1ea1ch cho nh\u1eefng l\u1ea7n u\u1ed1n th\u1eed, v\u00e0 ch\u1ee9ng minh thi\u1ebft l\u1eadp tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

      Gi\u1ea3i th\u00edch hi\u1ec7n t\u01b0\u1ee3ng b\u1eadt l\u1ea1i theo ng\u00f4n ng\u1eef x\u01b0\u1edfng: D\u1ef1 \u0111o\u00e1n \u0111\u1ed9 m\u1edf c\u1ee7a g\u00f3c u\u1ed1n<\/h3>\n\n\n\n

      B\u1eadt l\u1ea1i \u0111\u01a1n gi\u1ea3n l\u00e0 s\u1ef1 h\u1ed3i ph\u1ee5c \u0111\u00e0n h\u1ed3i. B\u1ea1n u\u1ed1n v\u1eadt li\u1ec7u v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n ch\u1ea3y, th\u1ea3 t\u1ea3i, v\u00e0 kim lo\u1ea1i th\u01b0 gi\u00e3n m\u1edf ra. M\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i l\u00e0 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n b\u1eadt l\u1ea1i \u2014 \u0111i\u1ec1u \u0111\u00f3 l\u00e0 phi th\u1ef1c t\u1ebf \u2014 m\u00e0 l\u00e0 d\u1ef1 \u0111o\u00e1n \u0111\u1ee7 ch\u00ednh x\u00e1c \u0111\u1ec3 g\u00f3c th\u00e0nh ph\u1ea9m \u0111\u1ea1t \u0111\u00fang v\u1ecb tr\u00ed mong mu\u1ed1n.<\/p>\n\n\n\n

      Tr\u00ean s\u00e0n x\u01b0\u1edfng, b\u1eadt l\u1ea1i b\u1ecb chi ph\u1ed1i b\u1edfi ba y\u1ebfu t\u1ed1: \u0111\u1ed9 b\u1ec1n v\u1eadt li\u1ec7u, \u0111\u1ed9 d\u00e0y v\u00e0 b\u00e1n k\u00ednh u\u1ed1n b\u00ean trong. M\u1ed9t nguy\u00ean t\u1eafc ti\u1ec7n l\u1ee3i l\u00e0 h\u1ec7 s\u1ed1 b\u1eadt l\u1ea1i (Ks). V\u1edbi th\u00e9p m\u1ec1m trong u\u1ed1n kh\u00f4ng ch\u1ea1m \u2014 kho\u1ea3ng 2 mm d\u00e0y v\u1edbi b\u00e1n k\u00ednh u\u1ed1n b\u00ean trong x\u1ea5p x\u1ec9 b\u1eb1ng \u0111\u1ed9 d\u00e0y \u2014 Ks th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng 1.05 \u0111\u1ebfn 1.20. Th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 th\u00e9p c\u01b0\u1eddng \u0111\u1ed9 cao t\u0103ng nhanh: th\u00e9p kh\u00f4ng g\u1ec9 304 th\u01b0\u1eddng kho\u1ea3ng 1.18, v\u00e0 th\u00e9p c\u01b0\u1eddng \u0111\u1ed9 cao ti\u00ean ti\u1ebfn c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 1.25.<\/p>\n\n\n\n

      Trong th\u1ef1c t\u1ebf, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 n\u1ebfu b\u1ea1n \u00e9p ch\u00e0y t\u1edbi \u0111i\u1ec3m d\u1eebng danh \u0111\u1ecbnh 90\u00b0 tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9 304, b\u1ea1n s\u1ebd th\u01b0\u1eddng l\u1ea5y ra chi ti\u1ebft v\u00e0 \u0111o th\u1ea5y g\u1ea7n 86\u00b0. Kh\u00f4ng c\u00f3 b\u00ed \u1ea9n g\u00ec c\u1ea3 \u2014 ch\u1ec9 l\u00e0 s\u1ef1 h\u1ed3i ph\u1ee5c \u0111\u00e0n h\u1ed3i ch\u01b0a \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn.<\/p>\n\n\n\n

      N\u1ebfu b\u1ea1n c\u1ea7n \u01b0\u1edbc t\u00ednh nhanh m\u00e0 kh\u00f4ng d\u00f9ng ph\u1ea7n m\u1ec1m, b\u00e1n k\u00ednh v\u00e0 \u0111\u1ed9 d\u00e0y s\u1ebd \u0111\u01b0a b\u1ea1n \u0111\u1ebfn g\u1ea7n k\u1ebft qu\u1ea3. Khi b\u00e1n k\u00ednh u\u1ed1n b\u00ean trong t\u0103ng so v\u1edbi \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u, b\u1eadt l\u1ea1i c\u0169ng t\u0103ng theo. V\u00ed d\u1ee5, b\u00e1n k\u00ednh u\u1ed1n b\u00ean trong 4 mm tr\u00ean th\u00e9p c\u00e1n ngu\u1ed9i 2 mm s\u1ebd th\u01b0\u1eddng m\u1edf ra kho\u1ea3ng 2\u00b0 sau khi th\u1ea3. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 h\u1eb1ng s\u1ed1 tuy\u1ec7t \u0111\u1ed1i \u2014 nh\u01b0ng \u0111\u1ee7 g\u1ea7n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ed9t l\u1ea7n u\u1ed1n \u0111\u1ea7u ti\u00ean h\u1ee3p l\u00fd.<\/p>\n\n\n\n

      C\u00e1i b\u1eaby \u1ea9n:<\/strong> B\u1eadt l\u1ea1i l\u00e0 c\u1ed9ng d\u1ed3n. M\u1ed9t h\u1ed9p u\u1ed1n b\u1ed1n g\u00f3c kh\u00f4ng t\u1ef1 \u0111\u1ed9ng trung b\u00ecnh c\u00e1c sai s\u1ed1 nh\u1ecf \u2014 n\u00f3 c\u1ed9ng ch\u00fang l\u1ea1i. Sai m\u1ed7i g\u00f3c u\u1ed1n 2\u00b0, t\u1edbi khi m\u00e9p cu\u1ed1i c\u00f9ng \u0111\u00f3ng l\u1ea1i b\u1ea1n \u0111\u00e3 m\u1ea5t 8\u00b0 song song. \u0110\u00f3 l\u00e0 c\u00e1ch c\u00e1c chi ti\u1ebft v\u1edbi nh\u1eefng g\u00f3c u\u1ed1n \u201c\u0111\u00fang th\u00f4ng s\u1ed1\u201d tr\u1edf th\u00e0nh ph\u1ebf li\u1ec7u \u1edf giai \u0111o\u1ea1n l\u1eafp r\u00e1p.<\/p>\n\n\n\n

      Bi\u1ebfn \u0111\u1ed5i t\u1eeb l\u00f4 n\u00e0y sang l\u00f4 kh\u00e1c l\u00e0 kh\u00f4ng tr\u00e1nh kh\u1ecfi. Ngay c\u1ea3 v\u1eadt li\u1ec7u t\u1eeb c\u00f9ng m\u1ed9t nh\u00e0 cung c\u1ea5p c\u0169ng c\u00f3 th\u1ec3 \u1ee9ng x\u1eed kh\u00e1c nhau t\u1eeb m\u1ebb n\u00e0y sang m\u1ebb kia, khi\u1ebfn b\u1eadt l\u1ea1i thay \u0111\u1ed5i t\u1eeb 5\u201315%. Ki\u1ec3m so\u00e1t \u0111\u00e1ng tin c\u1eady nh\u1ea5t l\u00e0 d\u00f9ng d\u1ea3i th\u1eed: u\u1ed1n m\u1ed9t m\u1eabu 100 mm t\u1edbi g\u00f3c m\u1ee5c ti\u00eau, \u0111\u1ec3 n\u00f3 th\u01b0 gi\u00e3n, \u0111o s\u1ef1 kh\u00e1c bi\u1ec7t, r\u1ed3i \u00e1p d\u1ee5ng \u0111i\u1ec1u ch\u1ec9nh \u0111\u00f3 cho to\u00e0n b\u1ed9 s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

      V\u1eadt li\u1ec7u<\/th>\u0110\u1ed9 d\u00e0y (mm)<\/th>Ks \u0111i\u1ec3n h\u00ecnh (u\u1ed1n kh\u00f4ng ch\u1ea1m 90\u00b0)<\/th>B\u1eadt l\u1ea1i d\u1ef1 \u0111o\u00e1n (\u00b0)<\/th><\/tr><\/thead>
      Th\u00e9p m\u1ec1m (A36)<\/td>2<\/td>1.08<\/td>2.5\u20133<\/td><\/tr>
      Th\u00e9p c\u00e1n ngu\u1ed9i 1018<\/td>3<\/td>1.12<\/td>4\u20135<\/td><\/tr>
      Th\u00e9p kh\u00f4ng g\u1ec9 304<\/td>1.5<\/td>1.18<\/td>5\u20137<\/td><\/tr>
      DP980 c\u01b0\u1eddng \u0111\u1ed9 cao<\/td>2<\/td>1.25+<\/td>8\u201312<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      B\u1ebb qu\u00e1 g\u00f3c: Ph\u01b0\u01a1ng ph\u00e1p s\u1eeda l\u1ed7i c\u00f4ng ngh\u1ec7 th\u1ea5p v\u1eabn v\u01b0\u1ee3t b\u00f9 CNC<\/h3>\n\n\n\n

      B\u1ebb qu\u00e1 g\u00f3c kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p t\u1ea1m th\u1eddi \u2014 \u0111\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p s\u1eeda l\u1ed7i c\u1ed1t l\u00f5i. B\u1ea1n c\u1ed1 \u00fd b\u1ebb v\u01b0\u1ee3t g\u00f3c m\u1ee5c ti\u00eau theo m\u1ee9c d\u1ef1 ki\u1ebfn c\u1ee7a hi\u1ec7n t\u01b0\u1ee3ng b\u1eadt l\u1ea1i, sau \u0111\u00f3 \u0111\u1ec3 s\u1ef1 h\u1ed3i ph\u1ee5c \u0111\u00e0n h\u1ed3i \u0111\u01b0a chi ti\u1ebft v\u1ec1 \u0111\u00fang th\u00f4ng s\u1ed1.<\/p>\n\n\n\n

      Nh\u1eafm t\u1edbi 90\u00b0 tr\u00ean th\u00e9p m\u1ec1m v\u1edbi Ks \u2248 1,08? \u0110\u01b0a ch\u00e0y v\u00e0o kho\u1ea3ng 87\u00b0. Nh\u1ea3 ra, \u0111o l\u1ea1i, v\u00e0 b\u1ea1n th\u01b0\u1eddng \u0111\u1ea1t \u0111\u00fang m\u1ee5c ti\u00eau. C\u00e1ch ti\u1ebfp c\u1eadn th\u1ee7 c\u00f4ng n\u00e0y v\u1eabn v\u01b0\u1ee3t hi\u1ec7u qu\u1ea3 b\u00f9 CNC m\u1eb7c \u0111\u1ecbnh \u1edf h\u1ea7u h\u1ebft c\u00e1c x\u01b0\u1edfng th\u1ef1c t\u1ebf, v\u00ec CNC gi\u1ea3 \u0111\u1ecbnh h\u1ec7 s\u1ed1 K \u1ed5n \u0111\u1ecbnh. Th\u1ef1c t\u1ebf, K c\u00f3 th\u1ec3 thay \u0111\u1ed5i t\u1eeb 0,28 \u0111\u1ebfn 0,42 t\u00f9y ch\u1ee9ng nh\u1eadn v\u1eadt li\u1ec7u, h\u01b0\u1edbng h\u1ea1t v\u00e0 b\u00e1n k\u00ednh u\u1ed1n. C\u00e1c v\u1eadn h\u00e0nh vi\u00ean ki\u1ec3m ch\u1ee9ng b\u1eb1ng d\u1ea3i th\u1eed th\u01b0\u1eddng gi\u1ea3m ph\u1ebf li\u1ec7u kho\u1ea3ng 40% trong c\u00e1c c\u00f4ng vi\u1ec7c l\u00f4 h\u1ed7n h\u1ee3p.<\/p>\n\n\n\n

      V\u1edbi b\u00e1n k\u00ednh u\u1ed1n l\u1edbn v\u00e0 v\u1eadt li\u1ec7u m\u1ecfng \u2014 n\u01a1i b\u1eadt l\u1ea1i c\u00f3 th\u1ec3 \u0111\u1ea1t 15\u201320% \u2014 vi\u1ec7c c\u1ed1 \u0111\u1ea1t g\u00f3c ch\u1ec9 b\u1eb1ng m\u1ed9t nh\u00e1t m\u1ea1nh th\u01b0\u1eddng l\u00e0m sai s\u1ed1 t\u0103ng l\u00ean. B\u1ebb qu\u00e1 g\u00f3c t\u1eebng b\u01b0\u1edbc nh\u1ecf \u0111\u00e1ng tin c\u1eady h\u01a1n nhi\u1ec1u. Ti\u1ebfn t\u1edbi g\u00f3c m\u1ee5c ti\u00eau theo t\u1eebng b\u01b0\u1edbc 1\u00b0 trong hai ho\u1eb7c ba l\u1ea7n u\u1ed1n; v\u1eadt li\u1ec7u \u1ed5n \u0111\u1ecbnh, v\u00e0 sai l\u1ec7ch g\u00f3c gi\u1ea3m \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n

      D\u1eadp \u0111\u00fac (coining) c\u00f3 th\u1ec3 g\u1ea7n nh\u01b0 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n b\u1eadt l\u1ea1i (Ks \u2248 1,00), nh\u01b0ng chi ph\u00ed r\u1ea5t cao: c\u1ea7n l\u1ef1c t\u1edbi g\u1ea5p m\u01b0\u1eddi l\u1ea7n v\u00e0 m\u00f2n d\u1ee5ng c\u1ee5 nhanh \u0111\u00e1ng k\u1ec3. H\u00e3y d\u00e0nh cho c\u00e1c dung sai \u00b10,2\u00b0 khi kh\u00f4ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0o kh\u00e1c v\u01b0\u1ee3t qua ki\u1ec3m tra.<\/p>\n\n\n\n

      Quy tr\u00ecnh b\u1ebb qu\u00e1 g\u00f3c 5 b\u01b0\u1edbc (Kh\u00f4ng c\u1ea7n ph\u1ea7n m\u1ec1m):<\/strong><\/p>\n\n\n\n

        \n
      1. B\u1ebb m\u1ed9t d\u1ea3i th\u1eed 100 mm t\u1edbi g\u00f3c l\u00fd thuy\u1ebft. Th\u00e0nh c\u00f4ng ngh\u0129a l\u00e0 \u0111\u01b0\u1eddng u\u1ed1n m\u01b0\u1ee3t, kh\u00f4ng b\u1ecb x\u01b0\u1edbc \u2014 h\u00e3y c\u1ea9n th\u1eadn \u1edf b\u01b0\u1edbc c\u1eaft n\u00e0y.<\/li>\n\n\n\n
      2. \u0110\u1ec3 chi ti\u1ebft ngh\u1ec9 hai ph\u00fat, r\u1ed3i \u0111o b\u1eb1ng th\u01b0\u1edbc \u0111o g\u00f3c k\u1ef9 thu\u1eadt s\u1ed1. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y m\u1ee9c b\u1eadt l\u1ea1i th\u1ef1c s\u1ef1 c\u1ee7a l\u00f4 v\u1eadt li\u1ec7u hi\u1ec7n t\u1ea1i.<\/li>\n\n\n\n
      3. T\u00ednh \u0111\u1ed9 ch\u00eanh v\u00e0 l\u00e0m tr\u00f2n l\u00ean m\u1ed9t ch\u00fat. M\u1ea5t 2,8\u00b0 \u0111o \u0111\u01b0\u1ee3c tr\u1edf th\u00e0nh m\u1ee5c ti\u00eau b\u1ebb qu\u00e1 3\u00b0.<\/li>\n\n\n\n
      4. Ch\u1ea1y chi ti\u1ebft s\u1ea3n xu\u1ea5t \u0111\u1ea7u ti\u00ean v\u00e0 \u0111o l\u1ea1i. Tinh ch\u1ec9nh \u0111\u1ed9 s\u00e2u c\u1ee7a tr\u1ee5c c\u1ea7n \u2014 kho\u1ea3ng 0,1 mm cho m\u1ed7i \u0111\u1ed9 l\u00e0 kinh nghi\u1ec7m ph\u1ed5 bi\u1ebfn.<\/li>\n\n\n\n
      5. C\u1ed1 \u0111\u1ecbnh thi\u1ebft l\u1eadp v\u00e0 ki\u1ec3m tra l\u1ea1i m\u1ed7i 10 chi ti\u1ebft ho\u1eb7c khi thay pallet. K\u1ef7 lu\u1eadt n\u00e0y gi\u00fap gi\u1eef \u00b10,5\u00b0 \u1ed5n \u0111\u1ecbnh su\u1ed1t ca.<\/li>\n<\/ol>\n\n\n\n

        Th\u1eafng l\u1ee3i t\u1ee9c th\u00ec:<\/strong> L\u1ea5y m\u1ed9t t\u1ea5m duy nh\u1ea5t t\u1eeb c\u00f4ng vi\u1ec7c hi\u1ec7n t\u1ea1i, \u0111\u00e1nh d\u1ea5u h\u01b0\u1edbng h\u1ea1t, v\u00e0 th\u1ef1c hi\u1ec7n m\u1ed9t l\u1ea7n u\u1ed1n th\u1eed tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u l\u00f4 ti\u1ebfp theo. Khi chi ti\u1ebft s\u1ea3n xu\u1ea5t \u0111\u1ea7u ti\u00ean ra chu\u1ea9n ngay \u2014 kh\u00f4ng ph\u1ea3i ch\u1ec9nh g\u00f3c \u2014 ph\u01b0\u01a1ng ph\u00e1p n\u00e0y t\u1ef1 ch\u1ee9ng minh trong v\u00e0i ph\u00fat. Kh\u00f4ng ph\u1ea3i l\u00fd thuy\u1ebft. Chi ti\u1ebft kh\u1edbp ho\u00e0n to\u00e0n.<\/p>\n\n\n\n

        Hi\u1ec7u \u1ee9ng \u201cXu\u1ed3ng\u201d: Chu\u1ea9n \u0111o\u00e1n \u0110\u1ed9 v\u00f5ng v\u00e0 \u0110\u1ed9 cong<\/h2>\n\n\n\n

        T\u1ea1i sao chi ti\u1ebft l\u1ea1i b\u1ecb b\u1ebb qu\u00e1 \u1edf gi\u1eefa v\u00e0 b\u1ebb thi\u1ebfu \u1edf hai \u0111\u1ea7u<\/h3>\n\n\n\n

        Hi\u1ec7u \u1ee9ng xu\u1ed3ng l\u00e0 d\u1ea1ng l\u1ed7i kinh \u0111i\u1ec3n c\u1ee7a c\u00e1c u\u1ed1n d\u00e0i: g\u00f3c kh\u00e9p nh\u1ea5t \u1edf gi\u1eefa v\u00e0 m\u1edf ra v\u1ec1 hai \u0111\u1ea7u, t\u1ea1o d\u00e1ng n\u00f4ng nh\u01b0 con thuy\u1ec1n. H\u1ea7u h\u1ebft c\u00e1c gi\u1ea3i th\u00edch m\u1eafc m\u1ed9t l\u1ed7i \u2014 h\u1ecd \u0111\u1ed5 l\u1ed7i cho v\u1eadt li\u1ec7u tr\u01b0\u1edbc ti\u00ean. S\u1ef1 bi\u1ebfn thi\u00ean v\u1eadt li\u1ec7u quan tr\u1ecdng, nh\u01b0ng ch\u1ec9 sau khi b\u1ea1n hi\u1ec3u d\u1ea7m m\u00e0 b\u1ea1n \u0111ang u\u1ed1n.<\/p>\n\n\n\n

        Khi ch\u1ecbu t\u1ea3i, m\u00e1y ch\u1ea5n kh\u00f4ng ho\u00e0n to\u00e0n c\u1ee9ng. Tr\u1ee5c ch\u1ea5n cong \u0111\u00e0n h\u1ed3i v\u00e0 b\u00e0n m\u00e1y v\u00f5ng, ngay c\u1ea3 tr\u00ean m\u00e1y n\u1eb7ng. \u0110\u1ed9 v\u00f5ng n\u00e0y thay \u0111\u1ed5i khe h\u1edf gi\u1eefa ch\u00e0y v\u00e0 c\u1ed1i d\u1ecdc theo chi\u1ec1u d\u00e0i d\u1ee5ng c\u1ee5. Trong nh\u00e1t u\u1ed1n, hai \u0111\u1ea7u ch\u1ecbu khe h\u1edf kh\u00e1c trung t\u00e2m. Khi t\u1ea3i \u0111\u01b0\u1ee3c nh\u1ea3, b\u1eadt l\u1ea1i kh\u00f4ng \u201ctrung b\u00ecnh h\u00f3a\u201d \u2014 n\u00f3 gi\u1eef nguy\u00ean kh\u00e1c bi\u1ec7t \u0111\u00f3 v\u00e0o chi ti\u1ebft.<\/p>\n\n\n\n

        V\u00e0i ph\u1ea7n ngh\u00ecn inch \u0111\u1ed9 v\u00f5ng nghe c\u00f3 v\u1ebb kh\u00f4ng \u0111\u00e1ng k\u1ec3. Tr\u00ean m\u1ed9t u\u1ed1n d\u00e0i, \u0111\u00f3 l\u00e0 t\u1ea5t c\u1ea3. C\u00e1c thay \u0111\u1ed5i khe h\u1edf nh\u1ecf chuy\u1ec3n h\u00f3a tr\u1ef1c ti\u1ebfp th\u00e0nh sai s\u1ed1 g\u00f3c, th\u01b0\u1eddng v\u01b0\u1ee3t \u0111\u01b0\u1eddng dung sai \u00b10,5\u00b0. T\u0103ng l\u1ef1c \u00e9p c\u00f3 th\u1ec3 che l\u1ea5p v\u1ea5n \u0111\u1ec1 t\u1ea1m th\u1eddi, nh\u01b0ng l\u00e0m t\u0103ng c\u0103ng th\u1eb3ng cho d\u1ee5ng c\u1ee5 v\u00e0 m\u00e1y, \u0111\u1ea9y nhanh m\u00e0i m\u00f2n, v\u00e0 t\u1ea1o th\u00eam bi\u1ebfn s\u1ed1 m\u1edbi.<\/p>\n\n\n\n

        C\u00e1c y\u1ebfu t\u1ed1 ph\u1ee5 c\u00f3 th\u1ec3 l\u00e0m v\u1ea5n \u0111\u1ec1 nghi\u00eam tr\u1ecdng h\u01a1n: t\u1ea3i l\u1ec7ch t\u00e2m, d\u1ee5ng c\u1ee5 l\u1ecfng ho\u1eb7c kh\u00f4ng kh\u1edbp, ph\u1ea3n \u1ee9ng th\u1ee7y l\u1ef1c kh\u00f4ng \u0111\u1ec1u gi\u1eefa c\u00e1c xy lanh, ho\u1eb7c bi\u1ebfn \u0111\u1ed5i t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u tr\u00ean t\u1ea5m. D\u00f9 v\u1eady, v\u1eadt l\u00fd c\u01a1 b\u1ea3n kh\u00f4ng thay \u0111\u1ed5i \u2014 v\u00f5ng \u0111\u00e0n h\u1ed3i khi ch\u1ecbu t\u1ea3i v\u00e0 b\u1eadt l\u1ea1i sau khi nh\u1ea3.<\/p>\n\n\n\n

        Ch\u1ea9n \u0111o\u00e1n nhanh:<\/strong> U\u1ed1n m\u1ed9t m\u1eabu th\u1eed nguy\u00ean chi\u1ec1u d\u00e0i v\u00e0 \u0111o g\u00f3c \u1edf c\u1ea3 hai \u0111\u1ea7u v\u00e0 \u1edf gi\u1eefa. Sau \u0111\u00f3 l\u1eadt ph\u00f4i \u0111\u1ea3o \u0111\u1ea7u v\u00e0 l\u1eb7p l\u1ea1i. N\u1ebfu sai s\u1ed1 v\u1eabn t\u1eadp trung \u1edf gi\u1eefa m\u00e1y, th\u00ec nguy\u00ean nh\u00e2n l\u00e0 do \u0111\u1ed9 v\u00f5ng. N\u1ebfu sai s\u1ed1 \u0111i theo t\u1ea5m, s\u1ef1 kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t c\u1ee7a v\u1eadt li\u1ec7u \u0111ang g\u00f3p ph\u1ea7n g\u00e2y ra v\u1ea5n \u0111\u1ec1.<\/p>\n\n\n\n

        Ch\u00eam khu\u00f4n so v\u1edbi h\u1ec7 th\u1ed1ng CNC crowning: c\u00e1ch b\u00f9 tr\u1eeb<\/h3>\n\n\n\n

        Tr\u00ean th\u1ef1c t\u1ebf, ch\u1ec9 c\u00f3 hai c\u00e1ch \u0111\u1ec3 ch\u1ed1ng l\u1ea1i \u0111\u1ed9 v\u00f5ng \u0111\u00e0n h\u1ed3i: th\u1ee5 \u0111\u1ed9ng \u00e9p d\u1ee5ng c\u1ee5 tr\u1edf l\u1ea1i song song, ho\u1eb7c ch\u1ee7 \u0111\u1ed9ng t\u00e1i \u0111\u1ecbnh d\u1ea1ng m\u00e1y khi \u0111ang ch\u1ecbu t\u1ea3i.<\/p>\n\n\n\n

        Ch\u00eam v\u00e0 c\u0103n ch\u1ec9nh th\u1ee7 c\u00f4ng<\/strong> l\u00e0 ph\u01b0\u01a1ng ph\u00e1p chi ph\u00ed th\u1ea5p nh\u1ea5t. C\u00e1c t\u1ea5m ch\u00eam m\u1ecfng \u0111\u1eb7t d\u01b0\u1edbi khu\u00f4n\u2014th\u01b0\u1eddng l\u00e0 g\u1ea7n hai \u0111\u1ea7u\u2014gi\u1ea3m khe h\u1edf hi\u1ec7u d\u1ee5ng t\u1ea1i n\u01a1i m\u00e1y m\u1edf ra khi ch\u1ecbu t\u1ea3i. Khi th\u1ef1c hi\u1ec7n c\u1ea9n th\u1eadn, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m th\u1eb3ng g\u00f3c d\u1ecdc theo chi\u1ec1u d\u00e0i cho c\u00e1c \u0111\u1ee3t ch\u1ea1y ng\u1eafn ho\u1eb7c c\u00e1c chi ti\u1ebft d\u00e0i th\u1ec9nh tho\u1ea3ng. M\u1ed9t th\u01b0\u1edbc th\u1eb3ng v\u00e0 m\u1ed9t l\u1ea7n u\u1ed1n th\u1eed cho th\u1ea5y khi b\u1ea1n \u0111\u00e3 g\u1ea7n \u0111\u1ea1t; ch\u1ec9 c\u1ea7n v\u00e0i ph\u1ea7n ngh\u00ecn inch c\u1ee7a t\u1ea5m ch\u00eam c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n

        Ch\u00eam ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u1ea5t v\u1edbi l\u1ef1c \u00e9p v\u1eeba ph\u1ea3i, lo\u1ea1i chi ti\u1ebft gi\u1edbi h\u1ea1n, v\u00e0 c\u00e1c thi\u1ebft l\u1eadp \u1ed5n \u0111\u1ecbnh. Nh\u1eefng h\u1ea1n ch\u1ebf xu\u1ea5t hi\u1ec7n nhanh ch\u00f3ng: l\u1eb7p l\u1ea1i t\u1ed1n th\u1eddi gian, nh\u1ea1y c\u1ea3m v\u1edbi s\u1ef1 thay \u0111\u1ed5i v\u1eadt li\u1ec7u, v\u00e0 th\u1ef1c t\u1ebf r\u1eb1ng m\u1ed7i thay \u0111\u1ed5i v\u1ec1 \u0111\u1ed9 d\u00e0y ho\u1eb7c chi\u1ec1u d\u00e0i u\u1ed1n \u0111\u1ec1u \u0111\u00f2i h\u1ecfi m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c ch\u00eam m\u1edbi.<\/p>\n\n\n\n

        Crowning ch\u1ee7 \u0111\u1ed9ng<\/strong> gi\u1ea3i quy\u1ebft c\u00f9ng v\u1ea5n \u0111\u1ec1 theo c\u00e1ch c\u00f3 ki\u1ec3m so\u00e1t v\u00e0 l\u1eb7p l\u1ea1i \u0111\u01b0\u1ee3c. Crowning c\u01a1 kh\u00ed s\u1eed d\u1ee5ng cam ho\u1eb7c c\u00e1c gi\u00e1 \u0111\u1ee1 \u0111i\u1ec1u ch\u1ec9nh trong thanh khu\u00f4n \u0111\u1ec3 t\u1ea1o ra \u0111\u1ed9 cong \u0111\u1ecbnh tr\u01b0\u1edbc. Crowning th\u1ee7y l\u1ef1c \u00e1p d\u1ee5ng c\u00e1c \u0111i\u1ec3m \u00e1p l\u1ef1c \u0111i\u1ec1u ch\u1ec9nh d\u01b0\u1edbi b\u00e0n ho\u1eb7c tr\u00ean c\u1ea7n. Crowning CNC t\u00edch h\u1ee3p \u0111i\u1ec1u ch\u1ec9nh n\u00e0y v\u00e0o b\u1ed9 \u0111i\u1ec1u khi\u1ec3n, t\u00ednh to\u00e1n b\u00f9 tr\u1eeb c\u1ea7n thi\u1ebft cho t\u1eebng ch\u01b0\u01a1ng tr\u00ecnh.<\/p>\n\n\n\n

        M\u1ee5c ti\u00eau kh\u00f4ng ph\u1ea3i l\u00e0 l\u00e0m cho m\u00e1y th\u1eb3ng khi kh\u00f4ng ch\u1ecbu t\u1ea3i, m\u00e0 l\u00e0 th\u1eb3ng khi ch\u1ecbu t\u1ea3i u\u1ed1n. Khi \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n \u0111\u00fang, crowning ch\u1ee7 \u0111\u1ed9ng t\u1ea1o ra \u0111\u1ed9 \u0111\u00f3ng hi\u1ec7u d\u1ee5ng \u0111\u1ed3ng \u0111\u1ec1u tr\u00ean to\u00e0n chi\u1ec1u d\u00e0i d\u1ee5ng c\u1ee5, \u0111\u1ed9c l\u1eadp v\u1edbi ph\u00e2n b\u1ed1 l\u1ef1c \u00e9p.<\/p>\n\n\n\n

        L\u1ee3i \u00edch l\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n. C\u00e1c chi ti\u1ebft d\u00e0i, dung sai g\u00f3c ch\u1eb7t, \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u h\u1ed7n h\u1ee3p, v\u00e0 s\u1ea3n xu\u1ea5t \u0111a d\u1ea1ng cao \u0111\u1ec1u \u01b0u ti\u00ean crowning ch\u1ee7 \u0111\u1ed9ng. S\u1ef1 \u0111\u00e1nh \u0111\u1ed5i l\u00e0 chi ph\u00ed ban \u0111\u1ea7u v\u00e0 nhu c\u1ea7u hi\u1ec7u chu\u1ea9n k\u1ef9 lu\u1eadt\u2014nh\u01b0ng l\u1ee3i \u00edch t\u1eeb vi\u1ec7c gi\u1ea3m ph\u1ebf ph\u1ea9m, thi\u1ebft l\u1eadp nhanh h\u01a1n, v\u00e0 \u00edt \u0111o\u00e1n m\u00f2 c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh th\u01b0\u1eddng v\u01b0\u1ee3t tr\u1ed9i.<\/p>\n\n\n\n

        Quy t\u1eafc quy\u1ebft \u0111\u1ecbnh:<\/strong> N\u1ebfu th\u1eddi gian ch\u1ebft do l\u1eb7p ch\u00eam t\u1ed1n nhi\u1ec1u h\u01a1n chi ph\u00ed m\u1ed9t h\u1ec7 th\u1ed1ng crowning trong su\u1ed1t v\u00f2ng \u0111\u1eddi s\u1eed d\u1ee5ng, th\u00ec l\u1ef1a ch\u1ecdn \u0111\u00e3 r\u00f5 r\u00e0ng.<\/p>\n\n\n\n

        Vai tr\u00f2 c\u1ee7a backgauge: Kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t \u0111i\u1ec3m d\u1eebng, m\u00e0 c\u00f2n l\u00e0 c\u00f4ng c\u1ee5 \u0111\u1ea3m b\u1ea3o vu\u00f4ng g\u00f3c<\/h3>\n\n\n\n

        H\u1ea7u h\u1ebft c\u00e1c cu\u1ed9c th\u1ea3o lu\u1eadn v\u1ec1 hi\u1ec7n t\u01b0\u1ee3ng \u201ccanoeing\u201d \u0111\u1ec1u b\u1ecf qua backgauge\u2014v\u00e0 \u0111i\u1ec1u b\u1ecf qua n\u00e0y r\u1ea5t t\u1ed1n k\u00e9m. G\u00f3c u\u1ed1n kh\u00f4ng \u0111\u1ec1u th\u01b0\u1eddng b\u1ecb khu\u1ebfch \u0111\u1ea1i b\u1edfi t\u1ea3i tr\u1ecdng kh\u00f4ng \u0111\u1ec1u.<\/p>\n\n\n\n

        Backgauge x\u00e1c \u0111\u1ecbnh n\u01a1i chi ti\u1ebft ti\u1ebfp x\u00fac v\u1edbi d\u1ee5ng c\u1ee5 v\u00e0 \u0111\u1ed9 vu\u00f4ng g\u00f3c c\u1ee7a n\u00f3 \u0111\u1ed1i v\u1edbi \u0111\u01b0\u1eddng u\u1ed1n. Khi m\u1ed9t ph\u00f4i d\u00e0i ho\u1eb7c b\u1ea5t \u0111\u1ed1i x\u1ee9ng \u0111\u01b0\u1ee3c \u00e9p m\u1ea1nh h\u01a1n v\u00e0o m\u1ed9t ng\u00f3n \u0111o so v\u1edbi ng\u00f3n kh\u00e1c, t\u1ea3i tr\u1ecdng u\u1ed1n s\u1ebd thay \u0111\u1ed5i. S\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng \u0111\u00f3 l\u00e0m t\u0103ng \u0111\u1ed9 v\u00f5ng c\u1ee5c b\u1ed9, khi\u1ebfn m\u1ed9t \u0111\u1ea7u c\u1ee7a chi ti\u1ebft h\u00e0nh x\u1eed kh\u00e1c \u0111\u1ea7u kia\u2014ngay c\u1ea3 khi crowning ho\u00e0n h\u1ea3o.<\/p>\n\n\n\n

        H\u00e3y coi backgauge l\u00e0 h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb v\u00e0 \u0111\u1ea3m b\u1ea3o vu\u00f4ng g\u00f3c, kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t \u0111i\u1ec3m d\u1eebng. H\u1ec7 th\u1ed1ng \u0111o \u0111a tr\u1ee5c cho ph\u00e9p b\u1ea1n \u0111\u1ee1 \u0111\u1ec1u c\u00e1c m\u00e9p d\u00e0i v\u00e0 gi\u1eef \u0111\u01b0\u1eddng u\u1ed1n vu\u00f4ng g\u00f3c v\u1edbi d\u1ee5ng c\u1ee5. \u0110\u1ed1i v\u1edbi c\u00e1c chi ti\u1ebft l\u1edbn, c\u00e1c gi\u00e1 \u0111\u1ee1 ph\u1ee5\u2014nh\u01b0 con l\u0103n ho\u1eb7c tay \u0111\u1ee1 b\u00ean\u2014ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng tr\u00f9ng xu\u1ed1ng g\u00e2y bi\u1ebfn d\u1ea1ng ph\u00e2n b\u1ed1 l\u1ef1c trong l\u00fac \u00e9p.<\/p>\n\n\n\n

        Hi\u1ec7u chu\u1ea9n l\u00e0 quan tr\u1ecdng. Backgauge l\u1eb7p l\u1ea1i ch\u00ednh x\u00e1c nh\u01b0ng kh\u00f4ng vu\u00f4ng g\u00f3c s\u1ebd ch\u1ec9 l\u1eb7p l\u1ea1i c\u00f9ng m\u1ed9t l\u1ed7i. L\u1ed7i vu\u00f4ng g\u00f3c nh\u1ecf t\u1ea1i backgauge nhanh ch\u00f3ng xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng s\u1ef1 kh\u00e1c bi\u1ec7t g\u00f3c d\u1ec5 th\u1ea5y \u1edf hai \u0111\u1ea7u c\u1ee7a c\u00e1c l\u1ea7n u\u1ed1n d\u00e0i.<\/p>\n\n\n\n

        M\u1ed9t k\u1ef9 thu\u1eadt \u0111\u1ec3 th\u1eed<\/h3>\n\n\n\n

        Nh\u1eefng \u0111i\u1ec1u h\u1ea7u h\u1ebft c\u00e1c b\u00e0i vi\u1ebft m\u1eafc sai:<\/strong> h\u1ecd t\u00ecm ki\u1ebfm s\u1ef1 \u0111\u1ed3ng \u0111\u1ec1u g\u00f3c b\u1eb1ng c\u00e1ch t\u0103ng l\u1ef1c \u00e9p thay v\u00ec c\u1ea3i thi\u1ec7n th\u00f4ng tin.<\/p>\n\n\n\n

        Th\u1ef1c hi\u1ec7n ki\u1ec3m tra ca n\u00f4 n\u0103m b\u01b0\u1edbc c\u00f3 ki\u1ec3m so\u00e1t v\u00e0 \u0111\u1ec3 m\u00e1y cho b\u1ea1n bi\u1ebft nh\u1eefng g\u00ec n\u00f3 th\u1ef1c s\u1ef1 c\u1ea7n.<\/p>\n\n\n\n

          \n
        1. U\u1ed1n m\u1ed9t chi ti\u1ebft th\u1eed nghi\u1ec7m c\u00f3 chi\u1ec1u d\u00e0i \u0111\u1ea7y \u0111\u1ee7 v\u1edbi l\u1ef1c \u00e9p s\u1ea3n xu\u1ea5t v\u00e0 ghi l\u1ea1i c\u00e1c g\u00f3c \u1edf c\u1ea3 hai \u0111\u1ea7u v\u00e0 \u1edf gi\u1eefa.<\/li>\n\n\n\n
        2. L\u1eadt ph\u00f4i \u0111\u1ea7u \u0111\u1ed5i \u0111\u1ea7u v\u00e0 l\u1eb7p l\u1ea1i l\u1ea7n u\u1ed1n \u0111\u1ec3 t\u00e1ch bi\u1ebfn d\u1ea1ng c\u1ee7a m\u00e1y kh\u1ecfi c\u00e1c hi\u1ec7u \u1ee9ng li\u00ean quan \u0111\u1ebfn v\u1eadt li\u1ec7u.<\/li>\n\n\n\n
        3. \u00c1p d\u1ee5ng vi\u1ec7c ch\u00eam t\u1ed1i thi\u1ec3u ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 cong nh\u1ecf v\u00e0 ch\u1ea1y l\u1ea1i b\u00e0i ki\u1ec3m tra\u2014ch\u1ec9 thay \u0111\u1ed5i m\u1ed9t bi\u1ebfn t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m.<\/li>\n\n\n\n
        4. X\u00e1c minh \u0111\u1ed9 vu\u00f4ng g\u00f3c c\u1ee7a th\u01b0\u1edbc t\u1ef3 sau v\u00e0 t\u00ednh \u0111\u1ed1i x\u1ee9ng khi n\u1ea1p ph\u00f4i tr\u01b0\u1edbc khi \u0111i\u1ec1u ch\u1ec9nh l\u1ef1c \u00e9p.<\/li>\n\n\n\n
        5. Khi \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 \u0111\u1ed3ng \u0111\u1ec1u, h\u00e3y kh\u00f3a \u0111i\u1ec1u ch\u1ec9nh \u0111\u00f3 v\u00e0o thi\u1ebft l\u1eadp ho\u1eb7c b\u1ea3ng hi\u1ec7u ch\u1ec9nh CNC.<\/li>\n<\/ol>\n\n\n\n

          \u0110i\u1ec1u b\u1ea5t ng\u1edd l\u00e0 th\u01b0\u1eddng ch\u1ec9 c\u1ea7n r\u1ea5t \u00edt \u0111i\u1ec1u ch\u1ec9nh khi bi\u1ebfn d\u1ea1ng, b\u00f9 tr\u1eeb v\u00e0 t\u1ea3i tr\u1ecdng \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh \u0111\u00fang. Khi hi\u1ec7u \u1ee9ng \u201cca n\u00f4\u201d bi\u1ebfn m\u1ea5t, vi\u1ec7c ki\u1ec3m so\u00e1t g\u00f3c kh\u00f4ng c\u00f2n l\u00e0 tr\u00f2 ph\u1ecfng \u0111o\u00e1n m\u00e0 tr\u1edf th\u00e0nh thi\u1ebft l\u1eadp c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i v\u00e0 \u0111\u01b0\u1ee3c ghi ch\u00e9p r\u00f5 r\u00e0ng.<\/p>\n\n\n\n

          Danh m\u1ee5c ki\u1ec3m tra khi ki\u1ec3m tra chi ti\u1ebft \u0111\u1ea7u ti\u00ean<\/h2>\n\n\n\n

          Chi ti\u1ebft \u0111\u1ea7u ti\u00ean kh\u00f4ng ph\u1ea3i l\u00e0 h\u00ecnh th\u1ee9c\u2014\u0111\u00f3 l\u00e0 \u0111i\u1ec3m m\u00e0 ph\u1ecfng \u0111o\u00e1n k\u1ebft th\u00fac v\u00e0 ki\u1ec3m so\u00e1t b\u1eaft \u0111\u1ea7u. M\u1ed9t l\u1ea7n u\u1ed1n s\u1ea1ch, \u0111\u01b0\u1ee3c \u0111o ch\u00ednh x\u00e1c, cho bi\u1ebft li\u1ec7u b\u1ea1n s\u1eafp s\u1ea3n xu\u1ea5t chi ti\u1ebft \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng hay t\u1ea1o ra ph\u1ebf ph\u1ea9m l\u1eb7p \u0111i l\u1eb7p l\u1ea1i. Danh m\u1ee5c ki\u1ec3m tra n\u00e0y bi\u1ebfn chi ti\u1ebft duy nh\u1ea5t \u0111\u00f3 th\u00e0nh \u0111i\u1ec3m quy\u1ebft \u0111\u1ecbnh, ch\u1ee9 kh\u00f4ng ph\u1ea3i hy v\u1ecdng.<\/p>\n\n\n\n

          \u0110o g\u00f3c: T\u1ea1i sao th\u01b0\u1edbc \u0111o g\u00f3c th\u1ea5t b\u1ea1i v\u00e0 \u0111\u1ed3ng h\u1ed3 k\u1ef9 thu\u1eadt s\u1ed1 th\u1eafng th\u1ebf<\/h3>\n\n\n\n

          N\u1ebfu b\u1ea1n v\u1eabn \u0111ang ki\u1ec3m tra g\u00f3c u\u1ed1n c\u1ee7a m\u00e1y \u00e9p b\u1eb1ng th\u01b0\u1edbc \u0111o g\u00f3c, b\u1ea1n th\u1ef1c ra kh\u00f4ng h\u1ec1 \u0111o\u2014m\u00e0 ch\u1ec9 \u0111ang \u01b0\u1edbc l\u01b0\u1ee3ng. M\u00e9p cong, l\u1edbp \u00f4xy h\u00f3a c\u00e1n v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng th\u1ecb sai \u00e9p bu\u1ed9c m\u1eaft b\u1ea1n \u201cquy trung b\u00ecnh\u201d m\u1ed9t b\u1ec1 m\u1eb7t v\u1ed1n kh\u00f4ng ph\u1eb3ng. K\u1ebft qu\u1ea3 r\u1ea5t d\u1ec5 \u0111o\u00e1n: c\u00e1c x\u01b0\u1edfng th\u01b0\u1eddng th\u1ea5y sai s\u1ed1 \u0111\u00e1nh gi\u00e1 cao h\u01a1n 0,5\u20131\u00b0 \u1edf c\u00e1c g\u00f3c u\u1ed1n 90\u00b0 d\u01b0\u1edbi 6\u202fmm, v\u00e0 sai s\u1ed1 c\u00f2n t\u0103ng \u1edf th\u00e9p c\u01b0\u1eddng \u0111\u1ed9 cao khi hi\u1ec7n t\u01b0\u1ee3ng h\u1ed3i ph\u1ee5c \u0111\u00e0n h\u1ed3i ti\u1ebfp t\u1ee5c sau khi d\u1ee5ng c\u1ee5 m\u1edf ra.<\/p>\n\n\n\n

          \u0110\u1ed3ng h\u1ed3 \u0111o g\u00f3c k\u1ef9 thu\u1eadt s\u1ed1 bi\u1ebfn vi\u1ec7c \u0111o l\u01b0\u1eddng t\u1eeb c\u1ea3m t\u00ednh sang v\u1eadt l\u00fd. V\u1edbi \u0111\u1ebf nam ch\u00e2m \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh v\u00e0o m\u00e9p u\u1ed1n, n\u00f3 tham chi\u1ebfu theo tr\u1ecdng l\u1ef1c\u2014kh\u00f4ng ph\u1ea3i theo th\u1ecb gi\u00e1c. C\u00e1c thi\u1ebft b\u1ecb ch\u1ea5t l\u01b0\u1ee3ng c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i \u0111\u1ebfn 0,1\u00b0 b\u1eb1ng c\u00e1ch l\u1ea5y trung b\u00ecnh ti\u1ebfp x\u00fac tr\u00ean b\u1ec1 m\u1eb7t, v\u00ec v\u1eady c\u00e1c th\u1eed nghi\u1ec7m t\u1ea1i x\u01b0\u1edfng cho th\u1ea5y \u0111\u1ed9 sai l\u1ec7ch gi\u1ea3m t\u1eeb kho\u1ea3ng \u00b11,2\u00b0 v\u1edbi th\u01b0\u1edbc \u0111o g\u00f3c xu\u1ed1ng c\u00f2n \u00b10,3\u00b0 tr\u00ean m\u01b0\u1eddi chi ti\u1ebft c\u00f9ng m\u1ed9t thi\u1ebft l\u1eadp.<\/p>\n\n\n\n

          H\u00e0nh \u0111\u1ed9ng c\u1ea7n th\u1ef1c hi\u1ec7n:<\/strong> Trong l\u1ea7n thi\u1ebft l\u1eadp ti\u1ebfp theo, h\u00e3y u\u1ed1n m\u1ed9t m\u00e9p th\u1eed 100\u202fmm \u0111\u1ea1t gi\u00e1 tr\u1ecb danh \u0111\u1ecbnh. \u0110o m\u1ed9t l\u1ea7n b\u1eb1ng th\u01b0\u1edbc \u0111o g\u00f3c, sau \u0111\u00f3 \u0111o l\u1ea1i b\u1eb1ng \u0111\u1ed3ng h\u1ed3 k\u1ef9 thu\u1eadt s\u1ed1 sau khi gi\u1eef 30 gi\u00e2y. N\u1ebfu k\u1ebft qu\u1ea3 kh\u00e1c nhau h\u01a1n 0,5\u00b0, h\u00e3y lo\u1ea1i b\u1ecf th\u01b0\u1edbc \u0111o g\u00f3c kh\u1ecfi kh\u00e2u ki\u1ec3m tra chi ti\u1ebft \u0111\u1ea7u ti\u00ean. C\u00e1c x\u01b0\u1edfng \u00e1p d\u1ee5ng thay \u0111\u1ed5i n\u00e0y th\u01b0\u1eddng gi\u1ea3m ph\u1ebf ph\u1ea9m li\u00ean quan \u0111\u1ebfn g\u00f3c kho\u1ea3ng 40% \u0111\u1ed1i v\u1edbi c\u00f4ng vi\u1ec7c c\u00f3 dung sai \u00b10,5\u00b0.<\/p>\n\n\n\n

          H\u00e3y nh\u1edb h\u00ecnh \u1ea3nh n\u00e0y: th\u01b0\u1edbc \u0111o g\u00f3c cho k\u1ebft qu\u1ea3 m\u00e0 m\u1eaft b\u1ea1n mu\u1ed1n tin; \u0111\u1ed3ng h\u1ed3 k\u1ef9 thu\u1eadt s\u1ed1 cho k\u1ebft qu\u1ea3 m\u00e0 th\u00e9p th\u1ef1c s\u1ef1 t\u1ea1o ra.<\/p>\n\n\n\n

          X\u00e1c minh k\u00edch th\u01b0\u1edbc m\u00e9p: sai s\u1ed1 gi\u1eefa \u0111o b\u00ean trong v\u00e0 b\u00ean ngo\u00e0i<\/h3>\n\n\n\n

          G\u00f3c u\u1ed1n th\u00f4i ch\u01b0a th\u1ec3 \u0111\u1ecbnh ngh\u0129a m\u1ed9t chi ti\u1ebft t\u1ed1t. Chi\u1ec1u d\u00e0i m\u00e9p u\u1ed1n l\u00e0 n\u01a1i nhi\u1ec1u chi ti\u1ebft \u201c\u0111\u01b0\u1ee3c duy\u1ec7t\u201d ban \u0111\u1ea7u \u00e2m th\u1ea7m th\u1ea5t b\u1ea1i sau n\u00e0y, v\u00e0 sai s\u00f3t g\u1ea7n nh\u01b0 lu\u00f4n b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c \u0111o sai m\u1eb7t.<\/p>\n\n\n\n

          \u0110o b\u00ean trong\u2014t\u1eeb ti\u1ebfp tuy\u1ebfn g\u00f3c u\u1ed1n \u0111\u1ebfn m\u00e9p\u2014che gi\u1ea5u s\u1ef1 t\u0103ng b\u00e1n k\u00ednh. Trong u\u1ed1n kh\u00f4ng ch\u1ea1m, tr\u1ee5c trung t\u00ednh d\u1ecbch chuy\u1ec3n khi b\u00e1n k\u00ednh h\u00ecnh th\u00e0nh, th\u01b0\u1eddng l\u1edbn h\u01a1n d\u1ef1 \u0111o\u00e1n c\u1ee7a b\u1ea3ng tra 10\u201320%. V\u1edbi chi ti\u1ebft th\u00e9p 2\u202fmm \u0111\u01b0\u1ee3c u\u1ed1n trong V\u2011khu\u00f4n 16\u202fmm, s\u1ef1 t\u0103ng tr\u01b0\u1edfng \u1ea9n n\u00e0y c\u00f3 th\u1ec3 khi\u1ebfn m\u00e9p trong c\u00f3 v\u1ebb ho\u00e0n h\u1ea3o trong khi k\u00edch th\u01b0\u1edbc b\u00ean ngo\u00e0i \u0111\u00e3 ng\u1eafn h\u01a1n 1\u20132\u202fmm.<\/p>\n\n\n\n

          \u0110o b\u00ean ngo\u00e0i\u2014chi\u1ec1u cao m\u00e9p u\u1ed1n t\u1eeb \u0111\u00e1y chi ti\u1ebft\u2014cho th\u1ea5y th\u1ef1c t\u1ebf. N\u00f3 ph\u1ea3n \u00e1nh t\u1ed5ng h\u1ee3p hi\u1ec7u \u1ee9ng c\u1ee7a g\u00f3c, b\u00e1n k\u00ednh v\u00e0 l\u01b0\u1ee3ng kh\u1ea5u tr\u1eeb khi u\u1ed1n. Nh\u1eadt k\u00fd t\u00e1i gia c\u00f4ng k\u1ec3 c\u00f9ng m\u1ed9t c\u00e2u chuy\u1ec7n: k\u00edch th\u01b0\u1edbc b\u00ean trong \u0111\u1ea1t, l\u1eafp r\u00e1p th\u1ea5t b\u1ea1i. \u1ede h\u01a1n m\u1ed9t n\u1eeda s\u1ed1 tr\u01b0\u1eddng h\u1ee3p n\u00e0y, nguy\u00ean nh\u00e2n g\u1ed1c kh\u00f4ng ph\u1ea3i do th\u01b0\u1edbc t\u1ef3 sau\u2014m\u00e0 l\u00e0 do b\u00e1n k\u00ednh ch\u00e0y ho\u1eb7c khu\u00f4n kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

          K\u1ef7 lu\u1eadt mang l\u1ea1i hi\u1ec7u qu\u1ea3:<\/strong> \u1ede ph\u1ea7n \u0111\u1ea7u, \u0111o c\u1ea3 hai b\u00ean. S\u1eed d\u1ee5ng th\u01b0\u1edbc k\u1eb9p b\u00ean trong n\u1ebfu c\u1ea7n, nh\u01b0ng d\u00f9ng th\u01b0\u1edbc \u0111o s\u00e2u ho\u1eb7c th\u01b0\u1edbc \u0111o chi\u1ec1u cao \u1edf b\u00ean ngo\u00e0i \u0111\u1ec3 tr\u00e1nh h\u00e0m tr\u01b0\u1ee3t tr\u00ean m\u1eb7t b\u00edch d\u00ednh d\u1ea7u. Ki\u1ec3m tra b\u00ean ngo\u00e0i ph\u00e1t hi\u1ec7n nhi\u1ec1u h\u01a1n kho\u1ea3ng 80% l\u1ed7i v\u1ec1 d\u1ee5ng c\u1ee5 v\u00e0 t\u00ednh to\u00e1n kh\u1ea5u tr\u1eeb u\u1ed1n so v\u1edbi ch\u1ec9 \u0111o b\u00ean trong.<\/p>\n\n\n\n

          N\u1ebfu k\u00edch th\u01b0\u1edbc b\u00ean trong c\u00f3 v\u1ebb t\u1ed1t nh\u01b0ng m\u1eb7t b\u00edch b\u00ean ngo\u00e0i b\u1ecb thi\u1ebfu, \u0111\u1eebng v\u1ed9i \u0111i\u1ec1u ch\u1ec9nh th\u01b0\u1edbc g\u00e1 ph\u00eda sau. Tri\u1ec7u ch\u1ee9ng \u0111\u00f3 cho th\u1ea5y \u0111\u1ed9 \u0111\u00e0n h\u1ed3i ho\u1eb7c kh\u00f4ng kh\u1edbp b\u00e1n k\u00ednh\u2014ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u1ed7i \u0111\u1ecbnh v\u1ecb.<\/p>\n\n\n\n

          Khi n\u00e0o n\u00ean \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u c\u1ee7a c\u1ea7n \u00e9p\u2014v\u00e0 khi n\u00e0o n\u00ean thay d\u1ee5ng c\u1ee5<\/h3>\n\n\n\n

          \u0110\u00e2y l\u00e0 n\u01a1i h\u1ea7u h\u1ebft c\u00e1c l\u1ea7n thi\u1ebft l\u1eadp b\u1ecb tr\u1eadt\u2014kh\u00f4ng ph\u1ea3i v\u00ec gi\u1ea3i ph\u00e1p l\u00e0 b\u00ed \u1ea9n, m\u00e0 v\u00ec \u0111i\u1ec1u ch\u1ec9nh nh\u1ea7m b\u1ed9 ph\u1eadn \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n

          S\u1eed d\u1ee5ng \u0111\u1ed9 s\u00e2u c\u1ee7a c\u1ea7n \u00e9p \u0111\u1ec3 ch\u1ec9nh g\u00f3c. Khi u\u1ed1n kh\u00f4ng ti\u1ebfp x\u00fac th\u00e9p m\u1ec1m d\u01b0\u1edbi 4\u202fmm, thay \u0111\u1ed5i 0.1\u202fmm v\u1ec1 \u0111\u1ed9 s\u00e2u s\u1ebd thay \u0111\u1ed5i g\u00f3c kho\u1ea3ng 0.5\u00b0. \u0110i\u1ec1u \u0111\u00f3 l\u00e0m cho \u0111\u1ed9 s\u00e2u tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng \u0111\u1ec3 lo\u1ea1i b\u1ecf \u0111\u1ed9 \u0111\u00e0n h\u1ed3i sau khi ki\u1ec3m tra g\u00f3c \u0111\u1ea7u ti\u00ean. N\u1ebfu b\u1ea1n n\u1eb1m trong \u00b11\u00b0 v\u1ec1 g\u00f3c v\u00e0 chi\u1ec1u d\u00e0i m\u1eb7t b\u00edch trong \u00b10.2\u202fmm, th\u00ec \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u l\u00e0 \u0111\u00f2n b\u1ea9y \u0111\u00fang.<\/p>\n\n\n\n

          Thay d\u1ee5ng c\u1ee5 khi k\u00edch th\u01b0\u1edbc ho\u1eb7c \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u sai v\u1ec1 c\u01a1 b\u1ea3n. \u0110\u1ed9 ch\u00eanh m\u1eb7t b\u00edch l\u1edbn h\u01a1n 0.3\u202fmm, n\u1ee9t g\u00e3y, ho\u1eb7c b\u00e1n k\u00ednh b\u1ecb k\u1eb9p r\u00f5 r\u00e0ng kh\u00f4ng ph\u1ea3i v\u1ea5n \u0111\u1ec1 c\u1ee7a \u0111\u1ed9 s\u00e2u. Ch\u00e0y V h\u1eb9p h\u01a1n kho\u1ea3ng 6\u00d7 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u t\u1eadp trung t\u1ea3i v\u00e0 g\u00e2y u\u1ed1n qu\u00e1 m\u1ee9c \u1edf gi\u1eefa. B\u00e1n k\u00ednh ch\u00e0y l\u1edbn h\u01a1n m\u1ed9t n\u1eeda \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u s\u1ebd g\u00e2y n\u1ee9t \u1edf s\u1ee3i ngo\u00e0i. \u0110i\u1ec1u ch\u1ec9nh c\u1ea7n \u00e9p kh\u00f4ng th\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u \u0111\u00f3\u2014n\u00f3 ch\u1ec9 che gi\u1ea5u v\u1ea5n \u0111\u1ec1 cho \u0111\u1ebfn khi ki\u1ec3m tra.<\/p>\n\n\n\n

          H\u00e3y kh\u1eafc tr\u00ecnh t\u1ef1 n\u00e0y v\u00e0o tr\u00ed nh\u1edb c\u01a1 b\u1eafp:<\/strong><\/p>\n\n\n\n

            \n
          1. \u0110o g\u00f3c b\u1eb1ng \u0111\u1ed3ng h\u1ed3 \u0111o k\u1ef9 thu\u1eadt s\u1ed1 v\u00e0 m\u1eb7t b\u00edch b\u00ean ngo\u00e0i b\u1eb1ng micrometer.<\/li>\n\n\n\n
          2. G\u00f3c l\u1ec7ch \u22640.5\u00b0 v\u00e0 m\u1eb7t b\u00edch trong gi\u1edbi h\u1ea1n? \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ed9 s\u00e2u \u1edf c\u00e1c b\u01b0\u1edbc 0.1\u202fmm.<\/li>\n\n\n\n
          3. G\u00f3c l\u1ec7ch h\u01a1n >1\u00b0 ho\u1eb7c m\u00e9p g\u1edd l\u1ec7ch h\u01a1n >0,3\u202fmm? Ki\u1ec3m tra b\u00e1n k\u00ednh ch\u00e0y v\u00e0 V\u2011die so v\u1edbi v\u1eadt li\u1ec7u.<\/li>\n\n\n\n
          4. V\u1eabn kh\u00f4ng \u0111\u1ec1u d\u1ecdc theo chi\u1ec1u d\u00e0i? U\u1ed1n m\u1ed9t thanh th\u1eed 300\u202fmm v\u00e0 so s\u00e1nh hai \u0111\u1ea7u v\u1edbi gi\u1eefa. Ch\u00eanh l\u1ec7ch h\u01a1n 0.5\u00b0 cho th\u1ea5y v\u1ea5n \u0111\u1ec1 \u1edf \u0111\u1ed9 cong ho\u1eb7c ch\u00eam\u2014kh\u00f4ng ph\u1ea3i l\u1ef1c \u00e9p.<\/li>\n<\/ol>\n\n\n\n

            H\u00e3y nh\u1edb h\u00ecnh \u1ea3nh c\u1ea3nh b\u00e1o n\u00e0y: g\u00f3c ho\u00e0n h\u1ea3o tr\u00ean chi ti\u1ebft b\u1ecb n\u1ee9t. \u0110\u1ed9 s\u00e2u c\u1ee7a c\u1ea7n \u00e9p c\u00f3 th\u1ec3 che gi\u1ea5u d\u1ee5ng c\u1ee5 k\u00e9m cho \u0111\u1ebfn khi c\u1ea3 lo\u1ea1t s\u1ea3n ph\u1ea9m b\u1ecb l\u1ed7i.<\/p>\n\n\n\n

            Ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u1edf \u0111\u1ea7u b\u00e0i n\u00e0y \u0111ang ph\u1ea3i v\u1eadt l\u1ed9n v\u1edbi m\u1ed9t \u0111\u01b0\u1eddng u\u1ed1n d\u00e0i \u201ckh\u00f4ng bao gi\u1edd kh\u1edbp b\u1ea3n v\u1ebd.\u201d Gi\u1ea3i ph\u00e1p kh\u00f4ng ph\u1ea3i l\u00e0 t\u0103ng l\u1ef1c \u00e9p hay \u0111i\u1ec1u ch\u1ec9nh v\u00f4 t\u1eadn\u2014m\u00e0 l\u00e0 ki\u1ec3m tra k\u1ef7 lu\u1eadt s\u1ea3n ph\u1ea9m \u0111\u1ea7u ti\u00ean gi\u00fap ph\u00e1t hi\u1ec7n s\u1ef1 th\u1eadt. \u0110o g\u00f3c chu\u1ea9n, ki\u1ec3m tra m\u1eb7t b\u00edch \u1edf v\u1ecb tr\u00ed quan tr\u1ecdng, v\u00e0 s\u1eed d\u1ee5ng \u0111\u00fang \u0111\u00f2n b\u1ea9y. L\u00e0m v\u1eady, s\u1ea3n ph\u1ea9m \u0111\u1ea7u ti\u00ean s\u1ebd kh\u00f4ng c\u00f2n l\u00e0 \u0111o\u00e1n m\u00f2 m\u00e0 tr\u1edf th\u00e0nh k\u1ebft lu\u1eadn.<\/p>","protected":false},"excerpt":{"rendered":"

            T\u1ea1i sao \u201cBi\u1ec3u \u0111\u1ed3\u201d l\u1ea1i \u0111ang \u0111\u00e1nh l\u1eeba b\u1ea1n\u2014v\u00e0 t\u1ea1i sao c\u00e1c g\u00f3c u\u1ed1n b\u1ecb l\u1ed7i \nChi ti\u1ebft r\u1eddi kh\u1ecfi m\u00e1y u\u1ed1n nh\u00ecn ho\u00e0n h\u1ea3o\u2014cho \u0111\u1ebfn khi n\u00f3 ngu\u1ed9i \u0111i, gi\u00e3n ra v\u00e0 m\u1edf ra th\u00eam hai \u0111\u1ed9, l\u00e0m sai l\u1ec7ch dung sai m\u00e0 bi\u1ec3u \u0111\u1ed3 \u0111\u00e3 h\u1ee9a l\u00e0 \u201c\u0111\u1ea3m b\u1ea3o\u201d. Kho\u1ea3nh kh\u1eafc \u0111\u00f3 h\u00e9 l\u1ed9 kho\u1ea3ng c\u00e1ch m\u00e0 b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec1 c\u1eadp: u\u1ed1n tr\u00ean m\u00e1y \u00e9p th\u1ee7y l\u1ef1c kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 h\u00ecnh h\u1ecdc; \u0111\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 h\u00e0nh vi c\u1ee7a h\u1ec7 th\u1ed1ng. Bi\u1ec3u \u0111\u1ed3 [\u2026]<\/p>","protected":false},"author":3,"featured_media":732,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_breakdance_hide_in_design_set":false,"_breakdance_tags":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-687","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/687","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/comments?post=687"}],"version-history":[{"count":2,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/687\/revisions"}],"predecessor-version":[{"id":1119,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/687\/revisions\/1119"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/media\/732"}],"wp:attachment":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/media?parent=687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/categories?post=687"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/tags?post=687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}