{"id":1051,"date":"2026-03-06T08:42:59","date_gmt":"2026-03-06T08:42:59","guid":{"rendered":"https:\/\/cn-hawe.com\/?p=1051"},"modified":"2026-03-09T00:21:01","modified_gmt":"2026-03-09T00:21:01","slug":"metal-forming-press-brake-die-tutorial","status":"publish","type":"post","link":"https:\/\/cn-hawe.com\/vi\/metal-forming-press-brake-die-tutorial\/","title":{"rendered":"\u0110\u1eebng \u0110\u1ed5 L\u1ed7i Cho C\u00fa \u0110\u1ea5m: H\u01b0\u1edbng D\u1eabn V\u1ec1 Khu\u00f4n U\u1ed1n Kim Lo\u1ea1i Ch\u00ednh X\u00e1c Cho Ph\u01b0\u01a1ng Ph\u00e1p U\u1ed1n Kh\u00f4ng Kh\u00ed"},"content":{"rendered":"

Hai ng\u01b0\u1eddi v\u1eadn h\u00e0nh. C\u00f9ng th\u00e9p kh\u00f4ng g\u1ec9 0,125. C\u00f9ng \u0111\u1ea7u ch\u00e0y 0,118. M\u1ed9t ng\u01b0\u1eddi t\u1ea1o ra b\u00e1n k\u00ednh b\u00ean trong s\u1ea1ch 0,140. Ng\u01b0\u1eddi kia l\u00e0m n\u1ee9t ph\u00eda ngo\u00e0i v\u00e0 \u0111o \u0111\u01b0\u1ee3c 0,180.<\/p>\n\n\n\n

C\u1ea3 hai \u0111\u1ec1u ch\u1ec9 v\u00e0o ch\u00e0y.<\/p>\n\n\n\n

T\u00f4i \u0111\u00e3 \u0111\u1ee9ng gi\u1eefa hai m\u00e1y \u0111\u00f3 nhi\u1ec1u l\u1ea7n h\u01a1n l\u00e0 t\u00f4i mu\u1ed1n th\u1eeba nh\u1eadn, v\u00e0 th\u00e9p kh\u00f4ng bao gi\u1edd n\u00f3i d\u1ed1i. N\u1ebfu ch\u00e0y l\u00e0 khu\u00f4n, nh\u1eefng chi ti\u1ebft \u0111\u00f3 s\u1ebd gi\u1ed1ng nhau. Nh\u01b0ng ch\u00fang kh\u00f4ng gi\u1ed1ng. V\u1eady n\u00ean c\u00f3 th\u1ee9 kh\u00e1c \u0111ang \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n

Huy\u1ec1n tho\u1ea1i \u201cCh\u00e0y nh\u01b0 Khu\u00f4n\u201d \u0111ang ph\u00e1 ho\u1ea1i b\u00e1n k\u00ednh u\u1ed1n c\u1ee7a b\u1ea1n<\/h2>\n\n\n\n

B\u1ea1n \u0111\u00e3 \u0111\u01b0\u1ee3c n\u00f3i r\u1eb1ng b\u00e1n k\u00ednh m\u0169i ch\u00e0y b\u1eb1ng v\u1edbi b\u00e1n k\u00ednh u\u1ed1n b\u00ean trong c\u1ee7a b\u1ea1n. Nghe c\u00f3 v\u1ebb h\u1ee3p l\u00fd. M\u0169i ch\u00e0y tr\u00f4ng nh\u01b0 m\u1ed9t khu\u00f4n. B\u1ea1n \u00e9p kim lo\u1ea1i v\u00e0o \u0111\u00f3. H\u00ecnh d\u1ea1ng g\u1eb7p h\u00ecnh d\u1ea1ng.<\/p>\n\n\n\n

Nh\u01b0ng trong ph\u01b0\u01a1ng ph\u00e1p u\u1ed1n kh\u00ed, t\u1ea5m kim lo\u1ea1i kh\u00f4ng bao gi\u1edd \u00f4m ho\u00e0n to\u00e0n m\u0169i ch\u00e0y \u0111\u00f3. N\u00f3 \u0111\u01b0\u1ee3c treo gi\u1eefa ba \u0111i\u1ec3m ti\u1ebfp x\u00fac: m\u0169i ch\u00e0y v\u00e0 hai vai c\u1ed1i. Ph\u1ea7n \u0111\u00e1y c\u1ee7a ch\u1eef V l\u00e0 kh\u00f4ng kh\u00ed. \u0110\u01b0\u1eddng cong b\u1ea1n t\u1ef1 h\u00e0o kh\u00f4ng \u0111\u01b0\u1ee3c d\u1eadp, m\u00e0 \u0111ang \u201ctr\u00f4i\u201d.<\/p>\n\n\n\n

Xem ch\u00e0y nh\u01b0 m\u1ed9t khu\u00f4n trong u\u1ed1n kh\u00ed gi\u1ed1ng nh\u01b0 c\u1ed1 \u0111o m\u1ed9t t\u1ea5m v\u00e1n khi n\u00f3 c\u00e2n b\u1eb1ng tr\u00ean hai gi\u00e1 c\u01b0a v\u00e0 gi\u1ea3 v\u1edd r\u1eb1ng s\u00e0n b\u00ean d\u01b0\u1edbi ki\u1ec3m so\u00e1t \u0111\u1ed9 v\u00f5ng. S\u00e0n kh\u00f4ng ch\u1ea1m v\u00e0o n\u00f3. \u0110\u00e1y c\u1ee7a c\u1ed1i c\u1ee7a b\u1ea1n c\u0169ng v\u1eady.<\/p>\n\n\n\n

N\u1ebfu ch\u00e0y th\u1ef1c s\u1ef1 kh\u00f4ng t\u1ea1o h\u00ecnh kim lo\u1ea1i, th\u00ec \u0111i\u1ec1u g\u00ec \u0111ang \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1eddng cong h\u00ecnh th\u00e0nh gi\u1eefa hai vai c\u1ed1i tr\u00ean m\u00e1y c\u1ee7a b\u1ea1n l\u00fac n\u00e0y?<\/p>\n\n\n\n

T\u1ea1i sao nh\u1eefng ch\u00e0y gi\u1ed1ng h\u1ec7t nhau l\u1ea1i cho k\u1ebft qu\u1ea3 kh\u00e1c nhau gi\u1eefa c\u00e1c ng\u01b0\u1eddi v\u1eadn h\u00e0nh<\/h3>\n\n\n\n
\"T\u1ea1i<\/figure>\n\n\n\n

H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng th\u1ebf n\u00e0y: c\u00f9ng ch\u00e0y, c\u00f9ng c\u1ed1i, c\u00f9ng \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh A xuy\u00ean xu\u1ed1ng 0,500 v\u00e0o ch\u1eef V. Ng\u01b0\u1eddi v\u1eadn h\u00e0nh B \u0111i 0,430 v\u00ec lo s\u1ee3 u\u1ed1n qu\u00e1.<\/p>\n\n\n\n

\u0110\u1ed9 s\u00e2u xuy\u00ean kh\u00e1c nhau thay \u0111\u1ed5i m\u1ee9c \u0111\u1ed9 t\u1ea5m kim lo\u1ea1i ch\u00ecm gi\u1eefa c\u00e1c vai c\u1ed1i. \u0110i\u1ec1u \u0111\u00f3 thay \u0111\u1ed5i b\u00e1n k\u00ednh b\u00ean trong. Ch\u00e0y kh\u00f4ng thay \u0111\u1ed5i. \u0110\u1ed9 m\u1edf c\u1ed1i kh\u00f4ng thay \u0111\u1ed5i. \u0110\u1ed9 s\u00e2u th\u00ec c\u00f3.<\/p>\n\n\n\n

V\u00e0 \u0111\u1ed9 nh\u1ea1y v\u1edbi \u0111\u1ed9 s\u00e2u t\u0103ng l\u00ean khi \u0111\u1ed9 m\u1edf ch\u1eef V r\u1ed9ng h\u01a1n. Ch\u1eef V r\u1ed9ng cho ph\u00e9p v\u1eadt li\u1ec7u cong nh\u1eb9 h\u01a1n, t\u1ea1o ra b\u00e1n k\u00ednh l\u1edbn h\u01a1n. Ch\u1eef V h\u1eb9p \u00e9p bu\u1ed9c \u0111\u01b0\u1eddng cong s\u1eafc h\u01a1n. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao m\u1ed9t c\u1ed1i V d\u01b0\u1edbi c\u00f3 th\u1ec3 ch\u1ea1y nhi\u1ec1u ch\u00e0y v\u00e0 v\u1eabn t\u1ea1o ra b\u00e1n k\u00ednh d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c\u2014v\u00ec \u0111\u1ed9 r\u1ed9ng c\u1ed1i l\u00e0 \u0111i\u1ec3m tham chi\u1ebfu.<\/p>\n\n\n\n

B\u1ecf qua \u0111i\u1ec1u \u0111\u00f3 gi\u1ed1ng nh\u01b0 \u0111\u1ed5 l\u1ed7i cho m\u1ed9t c\u00e2y c\u1ecd khi hai ng\u01b0\u1eddi c\u00f9ng d\u00f9ng con l\u0103n nh\u01b0ng \u0111\u1ec3 l\u1edbp s\u01a1n d\u00e0y kh\u00e1c nhau tr\u00ean t\u01b0\u1eddng; \u0111\u00f3 l\u00e0 \u00e1p l\u1ef1c v\u00e0 kho\u1ea3ng c\u00e1ch \u0111\u00e3 thay \u0111\u1ed5i.<\/p>\n\n\n\n

V\u1eady khi c\u00e1c chi ti\u1ebft c\u1ee7a b\u1ea1n thay \u0111\u1ed5i theo ca, b\u1ea1n \u0111ang theo d\u00f5i m\u0169i ch\u00e0y\u2014hay \u0111ang theo d\u00f5i \u0111\u1ed9 s\u00e2u th\u1ef1c t\u1ebf so v\u1edbi \u0111\u1ed9 m\u1edf V c\u1ed1 \u0111\u1ecbnh?<\/p>\n\n\n\n

Gi\u1ea3 \u0111\u1ecbnh t\u1ed1n k\u00e9m \u1ea9n sau h\u1ea7u h\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 h\u1ed3i ph\u1ee5c \u0111\u00e0n h\u1ed3i v\u00e0 n\u1ee9t v\u1eadt li\u1ec7u<\/h3>\n\n\n\n
\"Gi\u1ea3<\/figure>\n\n\n\n

T\u00f4i \u0111\u00e3 th\u1ea5y th\u00e9p kh\u00f4ng g\u1ec9 304 b\u1ecb n\u1ee9t to\u00e1c v\u00ec ai \u0111\u00f3 c\u1ed1 \u0111\u1ea1t \u201cb\u00e1n k\u00ednh nh\u1ecf h\u01a1n\u201d b\u1eb1ng c\u00e1ch thay sang ch\u00e0y s\u1eafc h\u01a1n trong khi v\u1eabn gi\u1eef nguy\u00ean c\u1ed1i V r\u1ed9ng.<\/p>\n\n\n\n

C\u1ed1i V r\u1ed9ng v\u1eabn quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh t\u1ef1 nhi\u00ean l\u1edbn. Ch\u00e0y s\u1eafc ch\u1ec9 t\u1eadp trung \u1ee9ng su\u1ea5t t\u1ea1i m\u0169i. C\u00e1c s\u1ee3i b\u00ean ngo\u00e0i b\u1ecb k\u00e9o c\u0103ng nhi\u1ec1u h\u01a1n c\u1ea7n thi\u1ebft. N\u1ee9t.<\/p>\n\n\n\n

Ng\u01b0\u1ee3c l\u1ea1i, t\u00f4i \u0111\u00e3 th\u1ea5y ng\u01b0\u1eddi ta \u00e9p th\u00e9p m\u1ec1m d\u00e0y v\u00e0o m\u1ed9t ch\u1eef V h\u1eb9p h\u01a1n \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u, c\u1ed1 \u201ccho kh\u1edbp v\u1edbi ch\u00e0y\u201d. V\u1eadt li\u1ec7u kh\u00f4ng c\u00f3 ch\u1ed7 \u0111\u1ec3 d\u1ecbch chuy\u1ec3n. N\u00f3 ph\u00ecnh ra hai b\u00ean v\u00e0 m\u1ecfng \u0111i \u1edf \u0111\u01b0\u1eddng u\u1ed1n.<\/p>\n\n\n\n

Gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng ch\u00e0y ki\u1ec3m so\u00e1t b\u00e1n k\u00ednh b\u00ean trong l\u00e0 nguy\u00ean nh\u00e2n c\u1ee7a c\u1ea3 hai sai l\u1ea7m. N\u00f3 che gi\u1ea5u \u0111\u00f2n b\u1ea9y th\u1ef1c s\u1ef1: \u0111\u1ed9 m\u1edf V so v\u1edbi \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

Gi\u1ed1ng nh\u01b0 c\u1ed1 u\u1ed1n t\u1ea5m b\u00eca c\u1ee9ng d\u00e0y tr\u00ean m\u1ed9t m\u00e1ng r\u1ed9ng v\u00e0 mong m\u1ed9t n\u1ebfp g\u1ea5p ch\u1eb7t ch\u1ec9 v\u00ec ng\u00f3n tay b\u1ea1n s\u1eafc nh\u1ecdn. Kho\u1ea3ng c\u00e1ch quy\u1ebft \u0111\u1ecbnh \u0111\u01b0\u1eddng cong.<\/p>\n\n\n\n

Khi b\u1ea1n thi\u1ebft l\u1eadp c\u00f4ng vi\u1ec7c cu\u1ed1i c\u00f9ng c\u1ee7a m\u00ecnh, b\u1ea1n c\u00f3 ch\u1ecdn kh\u1ea9u \u0111\u1ed9 V d\u1ef1a tr\u00ean \u0111\u1ed9 d\u00e0y v\u00e0 b\u00e1n k\u00ednh m\u1ee5c ti\u00eau\u2014hay b\u1ea1n b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch l\u1ea5y m\u1ed9t ch\u00e0y m\u00e0 b\u1ea1n th\u00edch?<\/p>\n\n\n\n

Ch\u1eb7n \u0111\u00e1y so v\u1edbi u\u1ed1n gi\u00f3: T\u1ea1i sao b\u1ea1n c\u00f3 th\u1ec3 \u0111ang \u00e1p d\u1ee5ng sai c\u00e1c \u0111\u1ecbnh lu\u1eadt v\u1eadt l\u00fd v\u00e0o thi\u1ebft l\u1eadp c\u1ee7a m\u00ecnh<\/h3>\n\n\n\n
\"Ch\u1eb7n<\/figure>\n\n\n\n

Gi\u1edd h\u00e3y c\u00f4ng b\u1eb1ng m\u00e0 n\u00f3i. Trong ch\u1eb7n \u0111\u00e1y, t\u1ea5m kim lo\u1ea1i b\u1ecb \u00e9p v\u00e0o khu\u00f4n cho \u0111\u1ebfn khi ti\u1ebfp x\u00fac v\u1edbi ch\u00e0y v\u00e0 th\u00e0nh khu\u00f4n. Ti\u1ebfp x\u00fac ho\u00e0n to\u00e0n. Kim lo\u1ea1i bi\u1ebfn d\u1ea1ng theo khu\u00f4n. G\u00f3c v\u00e0 b\u00e1n k\u00ednh c\u1ee7a ch\u00e0y quan tr\u1ecdng h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n

M\u1ed9t tr\u00f2 ch\u01a1i kh\u00e1c.<\/p>\n\n\n\n

Trong u\u1ed1n gi\u00f3, b\u1ea1n kh\u00f4ng bao gi\u1edd ch\u1ea1m \u0111\u00e1y. B\u1ea1n d\u1ef1a v\u00e0o \u0111\u1ed9 xuy\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t v\u00e0 \u0111\u1ed9 h\u1ed3i \u0111\u00e0n h\u1ed3i d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c t\u1eeb u\u1ed1n ba \u0111i\u1ec3m. N\u1ebfu b\u1ea1n suy ngh\u0129 nh\u01b0 m\u1ed9t ng\u01b0\u1eddi v\u1eadn h\u00e0nh ch\u1eb7n \u0111\u00e1y khi \u0111ang u\u1ed1n gi\u00f3, b\u1ea1n \u0111ang gi\u1ea3i sai b\u00e0i to\u00e1n.<\/p>\n\n\n\n

\u0110i\u1ec1u \u0111\u00f3 gi\u1ed1ng nh\u01b0 l\u00e1i xe n\u00e2ng nh\u01b0ng \u0111i\u1ec1u khi\u1ec3n n\u00f3 nh\u01b0 m\u1ed9t chi\u1ebfc xe b\u00e1n t\u1ea3i\u2014ph\u1ea7n \u0111u\u00f4i xe xoay v\u00ec \u0111i\u1ec3m tr\u1ee5c kh\u00e1c nhau. C\u00f9ng lo\u1ea1i m\u00e1y. V\u1eadt l\u00fd kh\u00e1c nhau.<\/p>\n\n\n\n

Tr\u01b0\u1edbc khi b\u1ea1n ch\u1ea1m v\u00e0o m\u1ed9t ch\u00e0y kh\u00e1c, h\u00e3y tr\u1ea3 l\u1eddi t\u00f4i: b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang ch\u1eb7n \u0111\u00e1y chi ti\u1ebft \u0111\u00f3, hay b\u1ea1n \u0111ang u\u1ed1n gi\u00f3 v\u00e0 gi\u1ea3 v\u1edd r\u1eb1ng ch\u00e0y ki\u1ec3m so\u00e1t?<\/p>\n\n\n\n

C\u01a1 ch\u1ebf ba \u0111i\u1ec3m: Kh\u1ea9u \u0111\u1ed9 khu\u00f4n V quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 cong<\/h2>\n\n\n\n

B\u1ea1n c\u00f3 t\u1ea5m inox d\u00e0y 0,125 tr\u00ean gi\u00e1 v\u00e0 mu\u1ed1n m\u1ed9t b\u00e1n k\u00ednh b\u00ean trong 0,125 s\u1ea1ch s\u1ebd. B\u1ea1n \u0111ang nh\u00ecn v\u00e0o t\u1ee7 d\u1ee5ng c\u1ee5 c\u1ee7a m\u00ecnh v\u00e0 ngh\u0129, Kh\u1ea9u \u0111\u1ed9 V n\u00e0o s\u1ebd gi\u00fap t\u00f4i \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u \u0111\u00f3?<\/em> T\u1ed1t. \u0110\u00f3 l\u00e0 c\u00e2u h\u1ecfi \u0111\u00fang.<\/p>\n\n\n\n

M\u00f9a \u0111\u00f4ng n\u0103m ngo\u00e1i ch\u00fang t\u00f4i ch\u1ea1y th\u00e9p th\u01b0\u1eddng d\u00e0y 0,250 qua hai khu\u00f4n kh\u00e1c nhau. C\u00f9ng m\u1ed9t ch\u00e0y. M\u1ed9t khu\u00f4n c\u00f3 kh\u1ea9u \u0111\u1ed9 V 2 inch. Khu\u00f4n kia kh\u1ea9u \u0111\u1ed9 V 3 inch. Kh\u00f4ng c\u00f3 g\u00ec kh\u00e1c thay \u0111\u1ed5i. Khu\u00f4n V 2 inch t\u1ea1o ra b\u00e1n k\u00ednh b\u00ean trong kho\u1ea3ng 0,320. Khu\u00f4n V 3 inch? G\u1ea7n 0,500. C\u00f9ng m\u0169i ch\u00e0y. C\u00f9ng ng\u01b0\u1eddi v\u1eadn h\u00e0nh. C\u00f9ng m\u00e1y \u00e9p ch\u1ea5n.<\/p>\n\n\n\n

\u0110i\u1ec1u duy nh\u1ea5t thay \u0111\u1ed5i l\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c vai khu\u00f4n.<\/p>\n\n\n\n

\u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 tr\u00f9ng h\u1ee3p. \u0110\u00f3 l\u00e0 c\u01a1 ch\u1ebf.<\/p>\n\n\n\n

H\u00e3y ngh\u0129 v\u1ec1 t\u1ea5m kim lo\u1ea1i gi\u1ed1ng nh\u01b0 m\u1ed9t t\u1ea5m v\u00e1n \u0111\u1eb7t tr\u00ean hai gi\u00e1 c\u01b0a. Ch\u00e0y \u00e9p xu\u1ed1ng \u1edf gi\u1eefa, \u0111\u00fang v\u1eady\u2014nh\u01b0ng \u0111\u1ed9 cong h\u00ecnh th\u00e0nh v\u00ec kho\u1ea3ng c\u00e1ch gi\u1eefa hai gi\u00e1. M\u1edf r\u1ed9ng kho\u1ea3ng c\u00e1ch, \u0111\u1ed9 cong d\u1ecbu h\u01a1n. Thu h\u1eb9p l\u1ea1i, \u0111\u1ed9 cong ch\u1eb7t h\u01a1n. Ch\u00e0y kh\u00f4ng kh\u1eafc b\u00e1n k\u00ednh. N\u00f3 \u00e9p t\u1ea5m kim lo\u1ea1i cong gi\u1eefa hai \u0111i\u1ec3m t\u1ef1a c\u1ed1 \u0111\u1ecbnh.<\/p>\n\n\n\n

N\u1ebfu kho\u1ea3ng c\u00e1ch l\u00e0 y\u1ebfu t\u1ed1 th\u1ef1c s\u1ef1 quy\u1ebft \u0111\u1ecbnh, t\u1ea1i sao b\u1ea1n v\u1eabn b\u1eaft \u0111\u1ea7u thi\u1ebft l\u1eadp b\u1eb1ng c\u00e1ch ch\u1ecdn ch\u00e0y thay v\u00ec ch\u1ecdn khu\u00f4n?<\/p>\n\n\n\n

Khi t\u1ea5m kim lo\u1ea1i ng\u1eebng qu\u1ea5n quanh ch\u00e0y v\u00e0 b\u1eaft \u0111\u1ea7u n\u1ed5i tr\u00ean c\u00e1c vai khu\u00f4n<\/h3>\n\n\n\n

T\u00f4i s\u1ebd s\u1eeda l\u1ea1i m\u1ed9t h\u00ecnh dung ph\u1ed5 bi\u1ebfn tr\u01b0\u1edbc khi n\u00f3 khi\u1ebfn b\u1ea1n m\u1ea5t chi ti\u1ebft.<\/p>\n\n\n\n

T\u1ea5m kim lo\u1ea1i kh\u00f4ng<\/strong> ho\u00e0n to\u00e0n qu\u1ea5n quanh ch\u00e0y r\u1ed3i m\u1ed9t c\u00e1ch k\u1ef3 di\u1ec7u \u201cn\u1ed5i\u201d l\u00ean. Trong u\u1ed1n gi\u00f3 th\u1ef1c s\u1ef1, n\u00f3 lu\u00f4n \u1edf trong tr\u1ea1ng th\u00e1i ti\u1ebfp x\u00fac ba \u0111i\u1ec3m: m\u0169i ch\u00e0y v\u00e0 c\u1ea3 hai vai khu\u00f4n. \u0110i\u1ec1u thay \u0111\u1ed5i l\u00e0 ai \u0111ang t\u1ea1o h\u00ecnh.<\/p>\n\n\n\n

\u1ede giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a h\u00e0nh tr\u00ecnh, \u0111\u1ea7u ch\u00e0y chi\u1ebfm \u01b0u th\u1ebf v\u00ec v\u1eadt li\u1ec7u v\u1eabn ch\u01b0a ch\u1ea3y d\u1ebbo. B\u1ea1n v\u1eabn \u0111ang trong giai \u0111o\u1ea1n bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i \u2014 ch\u1ec9 l\u00e0 u\u1ed1n cong t\u1ea5m kim lo\u1ea1i. Khi v\u01b0\u1ee3t qua gi\u1edbi h\u1ea1n ch\u1ea3y, bi\u1ebfn d\u1ea1ng d\u1ebbo b\u1eaft \u0111\u1ea7u. L\u00fac n\u00e0y kim lo\u1ea1i ch\u1ea3y, v\u00e0 vai c\u1ed1i tr\u1edf th\u00e0nh c\u00e1c \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh x\u00e1c \u0111\u1ecbnh cung u\u1ed1n.<\/p>\n\n\n\n

S\u1ef1 chuy\u1ec3n ti\u1ebfp \u0111\u00f3 r\u1ea5t tinh t\u1ebf. Kh\u00f4ng c\u00f3 kho\u1ea3nh kh\u1eafc k\u1ecbch t\u00ednh n\u00e0o. Nh\u01b0ng v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc, n\u00f3 l\u00e0 t\u1ea5t c\u1ea3.<\/p>\n\n\n\n

\u0110\u00e1y c\u1ee7a ch\u1eef V kh\u00f4ng bao gi\u1edd ch\u1ea1m v\u00e0o t\u1ea5m kim lo\u1ea1i. C\u00f3 kho\u1ea3ng kh\u00f4ng kh\u00ed b\u00ean d\u01b0\u1edbi \u0111\u01b0\u1eddng u\u1ed1n. B\u00e1n k\u00ednh h\u00ecnh th\u00e0nh v\u00ec v\u1eadt li\u1ec7u \u0111ang b\u1ecb k\u00e9o gi\u00e3n tr\u00ean m\u1ed9t kho\u1ea3ng. Ch\u00e0y ch\u1ec9 cung c\u1ea5p l\u1ef1c v\u00e0 g\u00f3c; vai c\u1ed1i cung c\u1ea5p h\u00ecnh h\u1ecdc.<\/p>\n\n\n\n

V\u00e0 \u0111\u00e2y l\u00e0 \u0111i\u1ec3m khi\u1ebfn ng\u01b0\u1eddi v\u1eadn h\u00e0nh d\u1ec5 b\u1ecb \u0111\u00e1nh l\u1eeba: n\u1ebfu b\u1ea1n \u0111\u1ed5i sang m\u1ed9t ch\u00e0y nh\u1ecdn h\u01a1n trong c\u00f9ng m\u1ed9t khe V, b\u00e1n k\u00ednh b\u00ean trong \u0111o \u0111\u01b0\u1ee3c h\u1ea7u nh\u01b0 kh\u00f4ng thay \u0111\u1ed5i. \u0110i\u1ec1u thay \u0111\u1ed5i l\u00e0 s\u1ef1 t\u1eadp trung \u1ee9ng su\u1ea5t t\u1ea1i \u0111\u01b0\u1eddng u\u1ed1n. B\u1ea1n c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c l\u1ef1c t\u0103ng \u0111\u1ed9t ng\u1ed9t. B\u1ea1n th\u1ea5y nhi\u1ec1u v\u1ebft n\u1ee9t h\u01a1n \u1edf h\u1ee3p kim c\u1ee9ng h\u01a1n. Nh\u01b0ng cung u\u1ed1n gi\u1eefa hai vai v\u1eabn b\u1ecb chi ph\u1ed1i b\u1edfi chi\u1ec1u r\u1ed9ng c\u1ee7a khe V.<\/p>\n\n\n\n

N\u1ebfu c\u00e1c chi ti\u1ebft c\u1ee7a b\u1ea1n b\u1ecb n\u1ee9t, b\u1ea1n c\u00f3 \u0111ang si\u1ebft ch\u1eb7t \u0111\u1ea7u ch\u00e0y \u2014 hay \u0111ang t\u1ef1 h\u1ecfi li\u1ec7u khe V c\u1ee7a b\u1ea1n c\u00f3 qu\u00e1 r\u1ed9ng so v\u1edbi \u0111\u1ed9 gi\u00e3n d\u00e0i c\u1ee7a h\u1ee3p kim \u0111\u00f3 kh\u00f4ng?<\/p>\n\n\n\n

Quy t\u1eafc 20%: D\u1ef1 \u0111o\u00e1n b\u00e1n k\u00ednh b\u00ean trong t\u1ef1 nhi\u00ean tr\u01b0\u1edbc khi b\u00e0n \u00e9p \u0111i xu\u1ed1ng<\/h3>\n\n\n\n

B\u00e2y gi\u1edd ch\u00fang ta \u0111i v\u00e0o th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi th\u00e9p m\u1ec1m trong u\u1ed1n kh\u00ed, b\u00e1n k\u00ednh b\u00ean trong t\u1ef1 nhi\u00ean s\u1ebd n\u1eb1m v\u00e0o kho\u1ea3ng 16\u201320% c\u1ee7a khe V khu\u00f4n c\u1ed1i<\/strong>. Th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng l\u1edbn h\u01a1n m\u1ed9t ch\u00fat. Nh\u00f4m m\u1ec1m h\u01a1n c\u00f3 th\u1ec3 nh\u1ecf h\u01a1n v\u00ec n\u00f3 n\u00e9n nhi\u1ec1u h\u01a1n \u1edf m\u1eb7t trong c\u1ee7a ch\u1ed7 u\u1ed1n.<\/p>\n\n\n\n

\u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 chuy\u1ec7n truy\u1ec1n mi\u1ec7ng. \u0110i\u1ec1u \u0111\u00f3 b\u1eaft ngu\u1ed3n t\u1eeb c\u00e1ch tr\u1ee5c trung h\u00f2a d\u1ecbch chuy\u1ec3n trong qu\u00e1 tr\u00ecnh bi\u1ebfn d\u1ea1ng d\u1ebbo. V\u1eadt li\u1ec7u m\u1ec1m h\u01a1n cho ph\u00e9p n\u00e9n nhi\u1ec1u h\u01a1n \u1edf m\u1eb7t trong, l\u00e0m ch\u1eb7t b\u00e1n k\u00ednh cho c\u00f9ng m\u1ed9t kho\u1ea3ng u\u1ed1n. V\u1eadt li\u1ec7u c\u1ee9ng h\u01a1n ch\u1ed1ng l\u1ea1i n\u00e9n, n\u00ean cung u\u1ed1n gi\u00e3n ra ngo\u00e0i.<\/p>\n\n\n\n

Tr\u01b0\u1edbc khi \u0111i xa h\u01a1n \u2014 h\u00e3y th\u1eed \u0111i\u1ec1u n\u00e0y tr\u00ean ph\u1ebf li\u1ec7u tr\u01b0\u1edbc.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n \u0111ang h\u01b0\u1edbng t\u1edbi b\u00e1n k\u00ednh b\u00ean trong 0,125 v\u1edbi th\u00e9p m\u1ec1m v\u00e0 gi\u1ea3 s\u1eed 20% l\u00e0 gi\u00e1 tr\u1ecb l\u00e0m vi\u1ec7c:<\/p>\n\n\n\n

B\u00e1n k\u00ednh b\u00ean trong \u2248 0,20 \u00d7 Khe V Khe V \u2248 B\u00e1n k\u00ednh b\u00ean trong \u00f7 0,20<\/p>\n\n\n\n

V\u1eady n\u00ean:<\/p>\n\n\n\n

0,125 \u00f7 0,20 = 0,625 khe V.<\/p>\n\n\n\n

B\u1ea1n s\u1ebd ch\u1ecdn khe V 5\/8.<\/p>\n\n\n\n

N\u00f3 c\u00f3 \u0111\u1ea1t ch\u00ednh x\u00e1c 0,125 kh\u00f4ng? Kh\u00f4ng. M\u1ebb v\u1eadt li\u1ec7u, h\u01b0\u1edbng h\u1ea1t v\u00e0 gi\u1edbi h\u1ea1n ch\u1ea3y \u0111\u1ec1u \u1ea3nh h\u01b0\u1edfng. Nh\u01b0ng b\u1ea1n s\u1ebd g\u1ea7n \u0111\u00fang tr\u01b0\u1edbc c\u1ea3 khi b\u00e0n \u00e9p chuy\u1ec3n \u0111\u1ed9ng. \u0110\u00f3 l\u00e0 ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n

B\u00e2y gi\u1edd h\u00e3y so s\u00e1nh \u0111i\u1ec1u \u0111\u00f3 v\u1edbi vi\u1ec7c \u0111o\u00e1n b\u00e1n k\u00ednh ch\u00e0y v\u00e0 hy v\u1ecdng khu\u00f4n c\u1ed1i s\u1ebd ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n

V\u00e0 v\u1ec1 tuy\u00ean b\u1ed1 b\u1ea1n t\u1eebng nghe \u2014 r\u1eb1ng u\u1ed1n ba \u0111i\u1ec3m cho ra \u201cb\u00e1n k\u00ednh nh\u1ea5t qu\u00e1n b\u1ea5t k\u1ec3 bi\u1ebfn thi\u00ean \u0111\u1ed9 d\u00e0y.\u201d Trong ph\u1ea1m vi h\u1ee3p l\u00fd th\u00ec \u0111\u00fang. Bi\u1ebfn thi\u00ean nh\u1ecf v\u1ec1 \u0111\u1ed9 d\u00e0y kh\u00f4ng l\u00e0m thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 cung u\u1ed1n v\u00ec kho\u1ea3ng c\u00e1ch c\u1ed1 \u0111\u1ecbnh. Nh\u01b0ng n\u1ebfu t\u0103ng g\u1ea5p \u0111\u00f4i \u0111\u1ed9 d\u00e0y trong c\u00f9ng khe V, b\u1ea1n s\u1ebd thay \u0111\u1ed5i s\u1ef1 ph\u00e2n b\u1ed1 bi\u1ebfn d\u1ea1ng v\u00e0 \u0111\u1ed9 s\u00e2u \u00e9p c\u1ea7n thi\u1ebft. Khu\u00f4n c\u1ed1i v\u1eabn quy\u1ebft \u0111\u1ecbnh kh\u1ea3 n\u0103ng h\u00ecnh h\u1ecdc; v\u1eadt li\u1ec7u quy\u1ebft \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 \u201cm\u01b0\u1ee3t\u201d m\u00e0 n\u00f3 l\u1ea5p \u0111\u1ea7y kh\u1ea3 n\u0103ng \u0111\u00f3.<\/p>\n\n\n\n

V\u1eady khi b\u1ea1n b\u00e1o gi\u00e1 cho m\u1ed9t c\u00f4ng vi\u1ec7c, b\u1ea1n \u0111ang t\u00ednh ng\u01b0\u1ee3c t\u1eeb b\u00e1n k\u00ednh m\u1ee5c ti\u00eau v\u1ec1 khe m\u1edf h\u00ecnh ch\u1eef V\u2014hay b\u1ea1n ch\u1ec9 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 ng\u1eadp v\u00e0 c\u1ea7u nguy\u1ec7n?<\/p>\n\n\n\n

T\u1ea1i sao \u0111\u1ed9 s\u00e2u c\u1ee7a ch\u00e0y \u0111\u1ecbnh ra g\u00f3c, nh\u01b0ng kh\u00f4ng bao gi\u1edd \u0111\u1ecbnh ra b\u00e1n k\u00ednh<\/h3>\n\n\n\n

H\u00e3y quay l\u1ea1i v\u1edbi hai ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111\u00f3.<\/p>\n\n\n\n

C\u00f9ng m\u1ed9t khu\u00f4n. C\u00f9ng m\u1ed9t ch\u00e0y. M\u1ed9t ng\u01b0\u1eddi \u0111\u1ea1t 88 \u0111\u1ed9. Ng\u01b0\u1eddi kia \u0111\u1ea1t 92. H\u1ecd tranh c\u00e3i v\u1ec1 b\u00e1n k\u00ednh. H\u1ecd \u0111ang nh\u00ecn sai ch\u1ed7.<\/p>\n\n\n\n

\u0110\u1ed9 s\u00e2u c\u1ee7a ch\u00e0y \u0111i\u1ec1u khi\u1ec3n g\u00f3c v\u00ec g\u00f3c ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c t\u1ea5m \u0111\u01b0\u1ee3c \u00e9p xu\u1ed1ng gi\u1eefa vai khu\u00f4n s\u00e2u \u0111\u1ebfn m\u1ee9c n\u00e0o. \u00c9p s\u00e2u h\u01a1n l\u00e0m gi\u1ea3m g\u00f3c bao; \u00e9p n\u00f4ng h\u01a1n l\u00e0m t\u0103ng g\u00f3c bao. C\u00e1c m\u00e1y ch\u1ea5n CNC hi\u1ec7n \u0111\u1ea1i th\u1eadm ch\u00ed c\u00f2n theo d\u00f5i s\u1ef1 t\u0103ng l\u1ef1c khi v\u01b0\u1ee3t qua gi\u1edbi h\u1ea1n ch\u1ea3y, \u0111i\u1ec1u ch\u1ec9nh h\u00e0nh tr\u00ecnh \u0111\u1ec3 \u0111\u1ea1t g\u00f3c l\u1eb7p l\u1ea1i ch\u00ednh x\u00e1c b\u1ea5t ch\u1ea5p s\u1ef1 kh\u00e1c bi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

Nh\u01b0ng trong ph\u01b0\u01a1ng ph\u00e1p ch\u1ea5n gi\u00f3, t\u1ea5m kim lo\u1ea1i kh\u00f4ng bao gi\u1edd ho\u00e0n to\u00e0n \u00f4m tr\u1ecdn \u0111\u1ea7u ch\u00e0y. B\u00e1n k\u00ednh \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh t\u1eeb kho\u1ea3ng c\u00e1ch m\u1edf. Thay \u0111\u1ed5i \u0111\u1ed9 s\u00e2u ch\u1ec9 l\u00e0m hai c\u1ea1nh xoay quanh cung tr\u00f2n \u0111\u00f3; n\u00f3 kh\u00f4ng v\u1ebd l\u1ea1i cung tr\u00f2n.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n suy ngh\u0129 nh\u01b0 m\u1ed9t ng\u01b0\u1eddi v\u1eadn h\u00e0nh ch\u1ea5n \u00e9p \u0111\u00e1y trong khi \u0111ang ch\u1ea5n gi\u00f3, b\u1ea1n \u0111ang gi\u1ea3i sai b\u00e0i to\u00e1n.<\/p>\n\n\n\n

\u00c9p s\u00e2u h\u01a1n v\u00e0 b\u1ea1n s\u1ebd thay \u0111\u1ed5i g\u00f3c c\u0169ng nh\u01b0 h\u00e0nh vi \u0111\u00e0n h\u1ed3i tr\u1edf l\u1ea1i. \u0110\u1ed5i khu\u00f4n v\u00e0 b\u1ea1n s\u1ebd thay \u0111\u1ed5i b\u00e1n k\u00ednh. Nh\u1ea7m l\u1eabn hai \u0111i\u1ec1u \u0111\u00f3 v\u00e0 b\u1ea1n s\u1ebd ph\u1ea3i \u0111u\u1ed5i theo \u201cb\u00f3ng ma\u201d su\u1ed1t ca l\u00e0m.<\/p>\n\n\n\n

G\u00f3c l\u00e0 \u0111\u1ed9 s\u00e2u. B\u00e1n k\u00ednh l\u00e0 \u0111\u1ed9 m\u1edf V. V\u1eadt li\u1ec7u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3 hai.<\/p>\n\n\n\n

V\u1eady n\u00ean h\u00e3y \u0111\u1ee9ng \u1edf m\u00e1y c\u1ee7a b\u1ea1n ngay b\u00e2y gi\u1edd v\u00e0 n\u00f3i cho t\u00f4i bi\u1ebft\u2014\u0111\u1ed9 m\u1edf V n\u00e0o \u0111ang n\u1eb1m tr\u00ean b\u00e0n, b\u1ea1n gi\u1ea3 \u0111\u1ecbnh bao nhi\u00eau ph\u1ea7n tr\u0103m cho v\u1eadt li\u1ec7u \u0111\u00f3, v\u00e0 b\u1ea1n ch\u1ecdn n\u00f3 tr\u01b0\u1edbc hay sau khi l\u1ea5y ch\u00e0y?<\/p>\n\n\n\n

H\u1ec7 S\u1ed1 8x: T\u00ednh To\u00e1n \u0110\u1ed9 M\u1edf Khu\u00f4n V L\u00fd T\u01b0\u1edfng C\u1ee7a B\u1ea1n M\u00e0 Kh\u00f4ng C\u1ea7n \u0110o\u00e1n<\/h2>\n\n\n\n

B\u1ea1n c\u00f3 t\u1ea5m th\u00e9p th\u01b0\u1eddng 3 mm tr\u00ean b\u00e0n. B\u1ea3n v\u1ebd y\u00eau c\u1ea7u g\u00f3c ch\u1ea5n 90 g\u1ecdn g\u00e0ng. Kh\u00f4ng quy \u0111\u1ecbnh b\u00e1n k\u00ednh trong. Ng\u01b0\u1eddi h\u1ecdc vi\u1ec7c l\u1ea5y khu\u00f4n V 16 mm v\u00ec \u201ctr\u00f4ng c\u00f3 v\u1ebb \u0111\u00fang\u201d. Ph\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u00e0n h\u1ed3i tr\u1edf l\u1ea1i th\u00e0nh 94 \u0111\u1ed9. Ph\u1ea7n th\u1ee9 hai n\u1ee9t theo th\u1edb khi c\u1eadu ta \u0111\u1ed5i ch\u00e0y \u0111\u1ec3 c\u1ed1 kh\u1eafc ph\u1ee5c.<\/p>\n\n\n\n

\u0110\u00f3 ch\u00ednh l\u00e0 \u0111i\u1ec1u x\u1ea3y ra khi b\u1ea1n \u0111o\u00e1n m\u00f2.<\/p>\n\n\n\n

N\u1ebfu \u0111\u1ed9 m\u1edf khu\u00f4n quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh, th\u00ec vi\u1ec7c ch\u1ecdn khu\u00f4n kh\u00f4ng th\u1ec3 theo c\u1ea3m t\u00ednh. N\u00f3 ph\u1ea3i l\u00e0 t\u00ednh to\u00e1n. V\u1edbi th\u00e9p th\u01b0\u1eddng trong ch\u1ea5n gi\u00f3, 8\u00d7 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u l\u00e0 c\u01a1 s\u1edf v\u00ec n\u00f3 mang l\u1ea1i \u0111i\u1ec3m c\u00e2n b\u1eb1ng c\u01a1 h\u1ecdc\u2014l\u1ef1c \u00e9p h\u1ee3p l\u00fd, \u0111\u1ed9 \u0111\u00e0n h\u1ed3i tr\u1edf l\u1ea1i c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n, v\u00e0 b\u00e1n k\u00ednh trong t\u1ef1 nhi\u00ean kho\u1ea3ng 20% c\u1ee7a \u0111\u1ed9 m\u1edf \u0111\u00f3.<\/p>\n\n\n\n

Tr\u01b0\u1edbc khi \u0111i xa h\u01a1n \u2014 h\u00e3y th\u1eed \u0111i\u1ec1u n\u00e0y tr\u00ean ph\u1ebf li\u1ec7u tr\u01b0\u1edbc.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi th\u00e9p th\u01b0\u1eddng trong ch\u1ea5n gi\u00f3:<\/p>\n\n\n\n

B\u00e1n k\u00ednh trong \u2248 0,20 \u00d7 \u0111\u1ed9 m\u1edf V N\u1ebfu \u0111\u1ed9 m\u1edf V = 8 \u00d7 \u0111\u1ed9 d\u00e0y<\/p>\n\n\n\n

Khi \u0111\u00f3: B\u00e1n k\u00ednh trong \u2248 0,20 \u00d7 (8t) = 1,6t<\/p>\n\n\n\n

V\u00ec v\u1eady, th\u00e9p 3 mm trong khu\u00f4n V 24 mm s\u1ebd t\u1ef1 nhi\u00ean t\u1ea1o ra b\u00e1n k\u00ednh trong kho\u1ea3ng 4,8 mm.<\/p>\n\n\n\n

\u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 truy\u1ec1n thuy\u1ebft. \u0110\u00f3 l\u00e0 h\u00ecnh h\u1ecdc v\u00e0 ph\u00e2n b\u1ed1 bi\u1ebfn d\u1ea1ng l\u00e0m vi\u1ec7c c\u00f9ng nhau.<\/p>\n\n\n\n

B\u1ea1n mu\u1ed1n ki\u1ec3m so\u00e1t? H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi khu\u00f4n, kh\u00f4ng ph\u1ea3i v\u1edbi ch\u00e0y. V\u1eady khi b\u1ea1n ch\u1ea5n th\u00e9p 3 mm, b\u1ea1n c\u00f3 t\u1ef1 \u0111\u1ed9ng l\u1ea5y khu\u00f4n V 24 mm\u2014hay v\u1eabn ch\u1ec9 nh\u00ecn \u0111\u1ea1i c\u00e1i c\u00f3 s\u1eb5n tr\u00ean gi\u00e1?<\/p>\n\n\n\n

T\u1ea1i sao th\u00e9p cacbon th\u1ea5p ti\u00eau chu\u1ea9n l\u1ea1i m\u1eb7c \u0111\u1ecbnh s\u1eed d\u1ee5ng khe m\u1edf b\u1eb1ng 8 l\u1ea7n \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u<\/h3>\n\n\n\n

B\u01b0\u1edbc qua b\u1ea5t k\u1ef3 x\u01b0\u1edfng gia c\u00f4ng n\u00e0o. B\u1ea1n s\u1ebd th\u1ea5y c\u00e1c gi\u00e1 k\u1ec7 \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n 6t, 8t, 10t. C\u00f3 l\u00fd do v\u00ec sao 8t l\u00e0 lo\u1ea1i \u0111\u01b0\u1ee3c d\u00f9ng trong m\u00e1y.<\/p>\n\n\n\n

Khi m\u1edf khu\u00f4n b\u1eb1ng 8\u00d7 \u0111\u1ed9 d\u00e0y, th\u00e9p cacbon th\u1ea5p u\u1ed1n trong kh\u00f4ng kh\u00ed m\u00e0 kh\u00f4ng l\u00e0m s\u1ee3i b\u00ean trong b\u1ecb n\u00e9n qu\u00e1 m\u1ee9c ho\u1eb7c s\u1ee3i b\u00ean ngo\u00e0i b\u1ecb k\u00e9o v\u01b0\u1ee3t qu\u00e1 gi\u1edbi h\u1ea1n gi\u00e3n d\u00e0i c\u1ee7a n\u00f3. \u1ee8ng su\u1ea5t \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 qua to\u00e0n b\u1ed9 ti\u1ebft di\u1ec7n sao cho s\u1ef1 d\u1ecbch chuy\u1ec3n c\u1ee7a tr\u1ee5c trung h\u00f2a c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c. \u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a g\u00f3c \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. V\u00e0 \u0111\u00f3 l\u00e0 l\u00fd do v\u00ec sao hi\u1ec7n t\u01b0\u1ee3ng n\u1ee9t hi\u1ebfm khi x\u1ea3y ra \u1edf th\u00e9p cacbon th\u1ea5p v\u1edbi t\u1ef7 l\u1ec7 n\u00e0y.<\/p>\n\n\n\n

H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng t\u1ea5m kim lo\u1ea1i nh\u01b0 m\u1ed9t t\u1ea5m v\u00e1n \u0111\u1eb7t tr\u00ean hai con ng\u1ef1a c\u01b0a. N\u1ebfu \u0111\u1eb7t hai con ng\u1ef1a qu\u00e1 g\u1ea7n, t\u1ea5m v\u00e1n s\u1ebd b\u1ecb g\u1eadp g\u1eaft. N\u1ebfu \u0111\u1eb7t qu\u00e1 xa, n\u00f3 g\u1ea7n nh\u01b0 kh\u00f4ng v\u00f5ng xu\u1ed1ng. Kho\u1ea3ng c\u00e1ch g\u1ea5p t\u00e1m l\u1ea7n \u0111\u1ed9 d\u00e0y \u0111\u1eb7t hai con ng\u1ef1a \u1edf v\u1ecb tr\u00ed m\u00e0 qu\u00e1 tr\u00ecnh u\u1ed1n di\u1ec5n ra g\u1ecdn g\u00e0ng m\u00e0 kh\u00f4ng ch\u1ed1ng l\u1ea1i v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

C\u00e1c b\u1ea3ng trong ng\u00e0nh ch\u1ec9 ra ph\u1ea1m vi kh\u1ea3 thi t\u1eeb 6\u00d7 \u0111\u1ebfn 12\u00d7 \u0111\u1ed9 d\u00e0y cho qu\u00e1 tr\u00ecnh u\u1ed1n kh\u00f4ng kh\u00ed th\u00e9p cacbon th\u1ea5p. T\u00e1m kh\u00f4ng ph\u1ea3i l\u00e0 con s\u1ed1 k\u1ef3 di\u1ec7u. N\u00f3 l\u00e0 m\u1ee9c trung b\u00ecnh. N\u00f3 c\u00e2n b\u1eb1ng gi\u1eefa l\u1ef1c, b\u00e1n k\u00ednh v\u00e0 \u0111\u1ed9 h\u1ed3i \u0111\u00e0n h\u1ed3i. \u0110\u00f3 l\u00e0 l\u00fd do n\u00f3 tr\u1edf th\u00e0nh m\u1eb7c \u0111\u1ecbnh.<\/p>\n\n\n\n

Nh\u01b0ng m\u1eb7c \u0111\u1ecbnh kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 ph\u1ed5 qu\u00e1t. Chuy\u1ec7n g\u00ec x\u1ea3y ra khi b\u1ea1n thu h\u1eb9p ho\u1eb7c n\u1edbi r\u1ed9ng kho\u1ea3ng n\u00e0y?<\/p>\n\n\n\n

\u00c9p ch\u1eb7t vs. K\u00e9o gi\u00e3n: \u0110i\u1ec1u g\u00ec x\u1ea3y ra khi b\u1ea1n gi\u1ea3m xu\u1ed1ng 6\u00d7 ho\u1eb7c t\u0103ng l\u00ean 12\u00d7<\/h3>\n\n\n\n

H\u00e3y gi\u1eef nguy\u00ean v\u00ed d\u1ee5 v\u1edbi t\u1ea5m 3 mm \u0111\u00f3.<\/p>\n\n\n\n

\u1ede 6\u00d7, b\u1ea1n \u0111ang m\u1edf V 18 mm. B\u00e1n k\u00ednh trong t\u1ef1 nhi\u00ean gi\u1ea3m xu\u1ed1ng kho\u1ea3ng 3,6 mm. Tr\u00f4ng kh\u00e1 g\u1ecdn g\u00e0ng. Nh\u01b0ng l\u1ef1c \u00e9p t\u0103ng nhanh v\u00ec v\u1eadt li\u1ec7u b\u1ecb bu\u1ed9c v\u00e0o cung u\u1ed1n ch\u1eb7t h\u01a1n. S\u1ee3i b\u00ean ngo\u00e0i b\u1ecb k\u00e9o c\u0103ng h\u01a1n. \u0110\u1ed9 h\u1ed3i \u0111\u00e0n h\u1ed3i t\u0103ng l\u00ean v\u00ec b\u1ea1n \u0111\u00e3 \u0111\u1ea9y \u1ee9ng su\u1ea5t cao h\u01a1n.<\/p>\n\n\n\n

Trong th\u1ef1c t\u1ebf, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 ph\u1ea3i d\u00f9ng l\u1ef1c ch\u00e0y nhi\u1ec1u h\u01a1n, \u0111\u1ed9 v\u00f5ng m\u00e1y t\u0103ng, v\u00e0 \u0111\u1ed9 sai l\u1ec7ch tr\u00e1i-ph\u1ea3i nhi\u1ec1u h\u01a1n tr\u1eeb khi b\u1ea1n \u0111\u00e3 hi\u1ec7u ch\u1ec9nh \u0111\u1ed9 cong ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

B\u00e2y gi\u1edd th\u1eed t\u0103ng l\u00ean 12\u00d7 \u2014 m\u1ed9t khe V 36 mm. B\u00e1n k\u00ednh t\u1ef1 nhi\u00ean h\u01b0\u1edbng \u0111\u1ebfn kho\u1ea3ng 7,2 mm. L\u1ef1c \u00e9p gi\u1ea3m. D\u1ec5 \u00e9p h\u01a1n. Nh\u01b0ng vi\u1ec7c ki\u1ec3m so\u00e1t g\u00f3c tr\u1edf n\u00ean kh\u00f3 h\u01a1n v\u00ec \u0111\u1ed9 s\u00e2u th\u00e2m nh\u1eadp thay \u0111\u1ed5i nhi\u1ec1u h\u01a1n khi b\u1ea1n thay \u0111\u1ed5i g\u00f3c nh\u1ecf. V\u00e0 chi\u1ec1u d\u00e0i m\u00e9p g\u1ea5p t\u0103ng l\u00ean, ch\u00fang ta s\u1ebd b\u00e0n \u0111\u1ebfn \u0111i\u1ec1u \u0111\u00f3 sau.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 n\u01a1i c\u00e1c th\u1ee3 v\u1eadn h\u00e0nh th\u01b0\u1eddng g\u1eb7p r\u1eafc r\u1ed1i. H\u1ecd c\u1ed1 \u0111\u1ea1t b\u00e1n k\u00ednh nh\u1ecf h\u01a1n b\u1eb1ng c\u00e1ch thu h\u1eb9p khu\u00f4n m\u00e0 kh\u00f4ng ki\u1ec3m tra l\u1ef1c \u00e9p ho\u1eb7c \u0111\u1ed9 d\u1ebbo c\u1ee7a v\u1eadt li\u1ec7u. Ho\u1eb7c h\u1ecd m\u1edf khu\u00f4n \u0111\u1ec3 gi\u1ea3m l\u1ef1c r\u1ed3i th\u1eafc m\u1eafc v\u00ec sao b\u00e1n k\u00ednh l\u1ea1i ph\u1ed3ng to.<\/p>\n\n\n\n

G\u1ea5p t\u00e1m l\u1ea7n \u0111\u1ed9 d\u00e0y gi\u1eef b\u1ea1n \u1edf m\u1ee9c trung b\u00ecnh. S\u00e1u l\u1ea7n th\u00ec \u1ee9ng su\u1ea5t t\u0103ng, m\u01b0\u1eddi hai l\u1ea7n th\u00ec v\u1eadt li\u1ec7u \u0111\u01b0\u1ee3c th\u1ea3 l\u1ecfng.<\/p>\n\n\n\n

V\u00ec v\u1eady, l\u1ea7n tr\u01b0\u1edbc khi b\u1ea1n l\u1ec7ch kh\u1ecfi 8\u00d7, b\u1ea1n c\u00f3 t\u00ednh to\u00e1n l\u00fd do kh\u00f4ng \u2014 hay ch\u1ec9 ph\u1ea3n \u1ee9ng theo khu\u00f4n m\u00e0 th\u1ee3 tr\u01b0\u1edbc \u0111\u1ec3 l\u1ea1i trong m\u00e1y?<\/p>\n\n\n\n

Y\u1ebfu t\u1ed1<\/th>6\u00d7 (V 18 mm)<\/th>8\u00d7 (V 24 mm)<\/th>12\u00d7 (V 36 mm)<\/th><\/tr><\/thead>
V\u00ed d\u1ee5 v\u1ec1 \u0111\u1ed9 d\u00e0y t\u1ea5m<\/td>3 mm<\/td>3 mm<\/td>3 mm<\/td><\/tr>
B\u00e1n k\u00ednh trong t\u1ef1 nhi\u00ean<\/td>~3,6 mm (ch\u1eb7t)<\/td>~4,8 mm (c\u00e2n b\u1eb1ng)<\/td>~7,2 mm (l\u1edbn h\u01a1n)<\/td><\/tr>
Y\u00eau C\u1ea7u L\u1ef1c Ch\u1ea5n<\/td>Cao<\/td>Trung b\u00ecnh<\/td>Th\u1ea5p<\/td><\/tr>
\u1ee8ng su\u1ea5t v\u1eadt li\u1ec7u<\/td>T\u0103ng \u1ee9ng su\u1ea5t tr\u00ean c\u00e1c s\u1ee3i ngo\u00e0i<\/td>\u1ee8ng su\u1ea5t \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t<\/td>Gi\u1ea3m \u1ee9ng su\u1ea5t<\/td><\/tr>
\u0110\u1ed9 h\u1ed3i l\u00f2 xo<\/td>Cao h\u01a1n do \u1ee9ng su\u1ea5t t\u0103ng<\/td>C\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c<\/td>\u1ee8ng su\u1ea5t th\u1ea5p h\u01a1n nh\u01b0ng nh\u1ea1y h\u01a1n v\u1edbi g\u00f3c<\/td><\/tr>
L\u1ef1c v\u00e0 \u0111\u1ed9 u\u1ed1n c\u1ee7a ch\u00e0y<\/td>C\u1ea7n l\u1ef1c l\u1edbn h\u01a1n, \u0111\u1ed9 u\u1ed1n ti\u1ec1m n\u0103ng nhi\u1ec1u h\u01a1n<\/td>\u1ed4n \u0111\u1ecbnh v\u00e0 d\u1ec5 ki\u1ec3m so\u00e1t<\/td>Nh\u1eb9 h\u01a1n \u0111\u1ed1i v\u1edbi m\u00e1y \u00e9p<\/td><\/tr>
Ki\u1ec3m so\u00e1t g\u00f3c<\/td>\u1ed4n \u0111\u1ecbnh h\u01a1n sau khi thi\u1ebft l\u1eadp<\/td>Ki\u1ec3m so\u00e1t c\u00e2n b\u1eb1ng<\/td>Nh\u1ea1y h\u01a1n v\u1edbi s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9 s\u00e2u xuy\u00ean<\/td><\/tr>
Y\u00eau c\u1ea7u chi\u1ec1u d\u00e0i m\u00e9p<\/td>C\u00f3 th\u1ec3 c\u00f3 m\u00e9p ng\u1eafn h\u01a1n<\/td>Y\u00eau c\u1ea7u m\u1eb7t b\u00edch ti\u00eau chu\u1ea9n<\/td>C\u1ea7n m\u1eb7t b\u00edch d\u00e0i h\u01a1n<\/td><\/tr>
R\u1ee7i ro v\u1eadn h\u00e0nh<\/td>Nguy c\u01a1 qu\u00e1 t\u1ea3i, bi\u1ebfn d\u1ea1ng m\u00e0 kh\u00f4ng c\u00f3 \u0111\u1ed9 cong th\u00edch h\u1ee3p<\/td>\u0110i\u1ec3m c\u00e2n b\u1eb1ng an to\u00e0n<\/td>Nguy c\u01a1 b\u00e1n k\u00ednh qu\u00e1 l\u1edbn v\u00e0 g\u00f3c kh\u00f4ng nh\u1ea5t qu\u00e1n<\/td><\/tr>
T\u00e1c \u0111\u1ed9ng t\u1ed5ng th\u1ec3<\/td>T\u0103ng \u1ee9ng su\u1ea5t v\u1eadt li\u1ec7u<\/td>C\u00e2n b\u1eb1ng t\u1ed1i \u01b0u<\/td>Gi\u1ea3m \u1ee9ng su\u1ea5t nh\u01b0ng l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

C\u00e1ch \u0111\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh to\u00e1n \u0111\u1ed1i v\u1edbi th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 nh\u00f4m<\/h3>\n\n\n\n

Gi\u1edd h\u00e3y l\u1ea5y th\u00e9p kh\u00f4ng g\u1ec9 304 d\u00e0y 3 mm. C\u00f9ng \u0111\u1ed9 d\u00e0y. C\u00f9ng V 24 mm.<\/p>\n\n\n\n

B\u1ea1n s\u1ebd kh\u00f4ng c\u00f3 \u0111\u01b0\u1ee3c b\u00e1n k\u00ednh 4,8 mm nh\u01b0 \u0111\u00e3 th\u1ea5y \u1edf th\u00e9p cacbon th\u1ea5p. Th\u00e9p kh\u00f4ng g\u1ec9 c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o cao h\u01a1n v\u00e0 \u0111\u1ed9 d\u1ebbo th\u1ea5p h\u01a1n. N\u00f3 ch\u1ed1ng l\u1ea1i s\u1ef1 n\u00e9n b\u00ean trong. Tr\u1ee5c trung h\u00f2a d\u1ecbch chuy\u1ec3n \u00edt h\u01a1n. \u0110\u1ed9 cong n\u1edf ra ngo\u00e0i. B\u00e1n k\u00ednh c\u1ee7a b\u1ea1n t\u0103ng l\u00ean\u2014c\u00f3 th\u1ec3 b\u1eb1ng 22\u201325% c\u1ee7a V thay v\u00ec 20%.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u00fd do \u201cquy t\u1eafc s\u1ed1 t\u00e1m\u201d khi\u1ebfn th\u00e9p kh\u00f4ng g\u1ec9 b\u1ecb n\u1ee9t khi b\u1ea1n qu\u00e1 tham.<\/p>\n\n\n\n

C\u00e1c x\u01b0\u1edfng u\u1ed1n th\u00e9p kh\u00f4ng g\u1ec9 t\u1ea5m d\u00e0y h\u01a1n th\u01b0\u1eddng chuy\u1ec3n sang 10\u00d7 ho\u1eb7c th\u1eadm ch\u00ed 12\u00d7 \u0111\u1ed9 d\u00e0y. Kh\u00f4ng ph\u1ea3i v\u00ec h\u1ecd mu\u1ed1n b\u00e1n k\u00ednh l\u1edbn h\u01a1n\u2014m\u00e0 v\u00ec v\u1eadt li\u1ec7u kh\u00f4ng ch\u1ecbu \u0111\u01b0\u1ee3c \u1ee9ng su\u1ea5t ch\u1eb7t h\u01a1n t\u1eeb khu\u00f4n h\u1eb9p. B\u1ea1n \u0111ang \u0111\u00e1nh \u0111\u1ed5i k\u00edch th\u01b0\u1edbc b\u00e1n k\u00ednh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o v\u1eadt li\u1ec7u kh\u00f4ng b\u1ecb h\u01b0 h\u1ecfng.<\/p>\n\n\n\n

Nh\u00f4m th\u00ec ng\u01b0\u1ee3c l\u1ea1i. H\u1ee3p kim m\u1ec1m h\u01a1n n\u00e9n nhi\u1ec1u h\u01a1n \u1edf m\u1eb7t trong. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p b\u1ea1n c\u00f3 th\u1ec3 d\u00f9ng 6\u00d7 m\u00e0 v\u1eabn tr\u00e1nh \u0111\u01b0\u1ee3c n\u1ee9t, \u0111\u1eb7c bi\u1ec7t v\u1edbi lo\u1ea1i 5052. H\u00e3y th\u1eed \u0111i\u1ec1u \u0111\u00f3 v\u1edbi 304 v\u00e0 b\u1ea1n s\u1ebd ph\u1ea3i qu\u00e9t c\u00e1c chi ti\u1ebft r\u01a1i v\u1ee1 tr\u00ean s\u00e0n.<\/p>\n\n\n\n

H\u1ec7 s\u1ed1 nh\u00e2n kh\u00f4ng c\u1ed1 \u0111\u1ecbnh. N\u00f3 thay \u0111\u1ed5i theo \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i. V\u1eadt li\u1ec7u c\u1ee9ng h\u01a1n? M\u1edf khu\u00f4n ra. V\u1eadt li\u1ec7u m\u1ec1m h\u01a1n? B\u1ea1n c\u00f3 th\u1ec3 thu nh\u1ecf l\u1ea1i\u2014nh\u01b0ng trong ph\u1ea1m vi h\u1ee3p l\u00fd.<\/p>\n\n\n\n

Khi b\u1ea1n u\u1ed1n th\u00e9p kh\u00f4ng g\u1ec9, b\u1ea1n v\u1eabn ngh\u0129 \u201c8\u00d7 v\u00ec \u0111\u00f3 l\u00e0 ti\u00eau chu\u1ea9n c\u1ee7a ch\u00fang t\u00f4i\u201d hay b\u1ea1n \u0111ang \u0111i\u1ec1u ch\u1ec9nh kho\u1ea3ng c\u00e1ch v\u00ec h\u1ee3p kim y\u00eau c\u1ea7u nh\u01b0 v\u1eady?<\/p>\n\n\n\n

B\u1eaby m\u1eb7t b\u00edch v\u00e0 gi\u1edbi h\u1ea1n t\u1ea3i: Khi khu\u00f4n \u201cho\u00e0n h\u1ea3o theo l\u00fd thuy\u1ebft\u201d kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u00e1y<\/h3>\n\n\n\n

Gi\u1ea3 s\u1eed t\u00ednh to\u00e1n cho ra V 24 mm cho th\u00e9p cacbon th\u1ea5p 3 mm c\u1ee7a b\u1ea1n. S\u1ea1ch s\u1ebd. D\u1ec5 d\u1ef1 \u0111o\u00e1n. Ho\u00e0n h\u1ea3o.<\/p>\n\n\n\n

B\u00e2y gi\u1edd h\u00e3y nh\u00ecn v\u00e0o b\u1ea3n v\u1ebd. Chi\u1ec1u d\u00e0i m\u00e9p g\u1edd l\u00e0 15 mm.<\/p>\n\n\n\n

Chi\u1ec1u d\u00e0i m\u00e9p g\u1edd t\u1ed1i thi\u1ec3u cho u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y (air bending) x\u1ea5p x\u1ec9 b\u1eb1ng 0,7 \u00d7 \u0111\u1ed9 m\u1edf V. V\u1edbi V 24 mm, con s\u1ed1 \u0111\u00f3 v\u00e0o kho\u1ea3ng 16,8 mm.<\/p>\n\n\n\n

M\u00e9p g\u1edd 15 mm c\u1ee7a b\u1ea1n th\u1eadm ch\u00ed s\u1ebd kh\u00f4ng \u0111\u1eb7t ph\u1eb3ng tr\u00ean hai vai c\u1ee7a khu\u00f4n. N\u00f3 s\u1ebd r\u01a1i v\u00e0o r\u00e3nh ch\u1eef V. V\u1ec1 m\u1eb7t v\u1eadt l\u00fd, b\u1ea1n kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1eddng u\u1ed1n \u0111\u00f3 v\u1edbi khu\u00f4n \u201cch\u00ednh x\u00e1c\u201d.<\/p>\n\n\n\n

V\u00ec v\u1eady b\u1ea1n gi\u1ea3m xu\u1ed1ng d\u00f9ng khu\u00f4n V 18 mm. Khi \u0111\u00f3 m\u00e9p g\u1edd t\u1ed1i thi\u1ec3u v\u00e0o kho\u1ea3ng 12,6 mm. N\u00f3 v\u1eeba kh\u00edt. Nh\u01b0ng l\u1ef1c \u00e9p t\u0103ng l\u00ean v\u00e0 b\u00e1n k\u00ednh b\u00ean trong nh\u1ecf l\u1ea1i. C\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c. Ho\u1eb7c c\u00f3 th\u1ec3 v\u1eadt li\u1ec7u s\u1ebd n\u1ee9t theo h\u01b0\u1edbng h\u1ea1t.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 l\u00fac l\u00fd thuy\u1ebft g\u1eb7p th\u00e9p th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

C\u00f2n c\u00f3 v\u1ea5n \u0111\u1ec1 v\u1ec1 n\u0103ng l\u1ef1c m\u00e1y. Khu\u00f4n h\u1eb9p l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 l\u1ef1c \u00e9p m\u1ed7i foot. N\u1ebfu m\u00e1y \u00e9p c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c 100 t\u1ea5n m\u00e0 c\u00f4ng vi\u1ec7c l\u1ea1i c\u1ea7n 120 t\u1ea5n v\u1edbi khu\u00f4n 6\u00d7, th\u00ec \u201cb\u00e1n k\u00ednh ho\u00e0n h\u1ea3o\u201d kh\u00f4ng \u0111\u00e1ng \u0111\u1ec3 b\u1ea1n l\u00e0m h\u1ecfng ph\u1edbt v\u00e0 d\u1eabn h\u01b0\u1edbng b\u00e0n tr\u01b0\u1ee3t.<\/p>\n\n\n\n

H\u1ec7 s\u1ed1 nh\u00e2n ch\u1ec9 l\u00e0 \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u. Sau \u0111\u00f3 b\u1ea1n ki\u1ec3m tra chi\u1ec1u d\u00e0i m\u00e9p g\u1edd. R\u1ed3i ki\u1ec3m tra l\u1ef1c \u00e9p. Theo \u0111\u00fang th\u1ee9 t\u1ef1 \u0111\u00f3.<\/p>\n\n\n\n

V\u00ec th\u1ebf, tr\u01b0\u1edbc khi ngh\u0129 \u0111\u1ebfn b\u00e1n k\u00ednh c\u1ee7a ch\u00e0y, h\u00e3y cho t\u00f4i bi\u1ebft: chi\u1ec1u d\u00e0i m\u00e9p g\u1edd c\u1ee7a b\u1ea1n l\u00e0 bao nhi\u00eau, m\u00e1y \u00e9p c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c bao nhi\u00eau t\u1ea5n v\u1edbi chi\u1ec1u r\u1ed9ng khu\u00f4n \u0111\u00f3, v\u00e0 khu\u00f4n V b\u1ea1n ch\u1ecdn c\u00f3 th\u1ef1c s\u1ef1 n\u00e2ng \u0111\u1ee1 \u0111\u01b0\u1ee3c chi ti\u1ebft hay kh\u00f4ng\u2014hay b\u1ea1n s\u1eafp \u00e9p m\u1ed9t thi\u1ebft l\u1eadp sai v\u00e0 r\u1ed3i \u0111\u1ed5 l\u1ed7i cho v\u1eadt li\u1ec7u?<\/p>\n\n\n\n

N\u1ebfu khu\u00f4n quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh, th\u00ec th\u1ef1c ch\u1ea5t ch\u00e0y \u0111ang l\u00e0m g\u00ec?<\/h2>\n\n\n\n

B\u1ea1n \u0111\u00e3 ki\u1ec3m tra b\u1ea3n v\u1ebd. \u0110\u1ed9 d\u00e0y, h\u1ee3p kim, h\u01b0\u1edbng th\u1edb v\u1eadt li\u1ec7u. B\u1ea1n \u0111\u00e3 \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c c\u01a1 s\u1edf 8\u00d7, \u0111i\u1ec1u ch\u1ec9nh cho th\u00e9p kh\u00f4ng g\u1ec9, x\u00e1c nh\u1eadn chi\u1ec1u d\u00e0i m\u00e9p g\u1edd theo 0,7 \u00d7 V, ki\u1ec3m tra l\u1ef1c \u00e9p d\u1ef1a tr\u00ean bi\u1ec3u \u0111\u1ed3 m\u00e1y \u00e9p. Khu\u00f4n \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ecdn, kh\u00f3a v\u00e0 l\u1eafp ch\u1eafc ch\u1eafn.<\/p>\n\n\n\n

B\u00e2y gi\u1edd b\u1ea1n \u0111ang nh\u00ecn v\u00e0o gi\u00e1 ch\u00e0y.<\/p>\n\n\n\n

Hai ng\u01b0\u1eddi v\u1eadn h\u00e0nh s\u1ebd \u0111\u1ee9ng tr\u01b0\u1edbc gi\u00e1 \u0111\u00f3 v\u00e0 \u0111\u01b0a ra hai quy\u1ebft \u0111\u1ecbnh kh\u00e1c nhau. M\u1ed9t ng\u01b0\u1eddi l\u1ea5y ch\u00e0y c\u00f3 b\u00e1n k\u00ednh m\u0169i g\u1ea7n v\u1edbi b\u00e1n k\u00ednh b\u00ean trong tr\u00ean b\u1ea3n v\u1ebd, ngh\u0129 r\u1eb1ng m\u00ecnh \u0111ang gh\u00e9p khu\u00f4n \u0111\u1ef1c v\u1edbi khu\u00f4n c\u00e1i. Ng\u01b0\u1eddi kia ch\u1ecdn ch\u00e0y g\u00f3c nh\u1ecdn\u2014s\u1eafc h\u01a1n 90 \u0111\u1ed9\u2014v\u00ec anh ta bi\u1ebft m\u00ecnh \u0111ang \u0111i\u1ec1u khi\u1ec3n g\u00f3c, kh\u00f4ng ph\u1ea3i b\u00e1n k\u00ednh. C\u00f9ng m\u1ed9t khu\u00f4n. C\u00f9ng v\u1eadt li\u1ec7u. Hi\u1ec3u bi\u1ebft kh\u00e1c nhau.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 \u0111i\u1ec1u \u0111ang x\u1ea3y ra v\u1ec1 m\u1eb7t v\u1eadt l\u00fd. Trong u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y, t\u1ea5m kim lo\u1ea1i ti\u1ebfp x\u00fac t\u1ea1i ba \u0111i\u1ec3m: \u0111\u1ea7u ch\u00e0y ph\u00eda tr\u00ean, hai vai khu\u00f4n ph\u00eda d\u01b0\u1edbi. V\u00e0 ch\u1ec9 th\u1ebf th\u00f4i. Kim lo\u1ea1i kh\u00f4ng bao gi\u1edd \u00f4m tr\u1ecdn ch\u00e0y, kh\u00f4ng bao gi\u1edd n\u1eb1m h\u1eb3n d\u01b0\u1edbi \u0111\u00e1y r\u00e3nh V. N\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t t\u1ea5m v\u00e1n \u0111\u1eb7t tr\u00ean hai gi\u00e1 \u0111\u1ee1\u2014l\u00e0 hai vai khu\u00f4n\u2014trong khi ch\u00e0y ch\u1ec9 \u00e9p xu\u1ed1ng \u1edf gi\u1eefa; kho\u1ea3ng c\u00e1ch gi\u1eefa hai gi\u00e1 \u0111\u1ee1 quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 cong. Ch\u00e0y kh\u00f4ng th\u1ec3 k\u00e9o hai gi\u00e1 \u0111\u1ee1 ti\u1ebfn l\u1ea1i g\u1ea7n nhau. N\u00f3 kh\u00f4ng th\u1ec3 l\u00e0m nh\u1ecf b\u00e1n k\u00ednh m\u00e0 \u0111\u1ed9 m\u1edf khu\u00f4n \u0111\u00e3 x\u00e1c \u0111\u1ecbnh s\u1eb5n.<\/p>\n\n\n\n

Nh\u01b0ng trong u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y, t\u1ea5m v\u1eadt li\u1ec7u kh\u00f4ng bao gi\u1edd qu\u1ea5n ho\u00e0n to\u00e0n quanh \u0111\u1ea7u ch\u00e0y \u0111\u00f3.<\/p>\n\n\n\n

V\u1eady ch\u00e0y th\u1ef1c s\u1ef1 l\u00e0m g\u00ec? N\u00f3 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9 s\u00e2u xuy\u00ean v\u00e0o v\u1eadt li\u1ec7u, v\u00e0 \u0111\u1ed9 s\u00e2u \u0111\u00f3 quy\u1ebft \u0111\u1ecbnh g\u00f3c u\u1ed1n. Ch\u00e0y \u0111i xu\u1ed1ng c\u00e0ng s\u00e2u, g\u00f3c u\u1ed1n c\u00e0ng kh\u00edt\u2014cho \u0111\u1ebfn khi \u0111\u1ed9 \u0111\u00e0n h\u1ed3i c\u1ee7a v\u1eadt li\u1ec7u l\u00e0m b\u1eadt l\u1ea1i m\u1ed9t ch\u00fat. Ch\u00e0y l\u00e0 d\u1ee5ng c\u1ee5 \u0111i\u1ec1u ch\u1ec9nh g\u00f3c v\u00e0 khe h\u1edf. Kh\u00f4ng ph\u1ea3i khu\u00f4n t\u1ea1o b\u00e1n k\u00ednh.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n suy ngh\u0129 nh\u01b0 m\u1ed9t ng\u01b0\u1eddi v\u1eadn h\u00e0nh ch\u1ea5n \u00e9p \u0111\u00e1y trong khi \u0111ang ch\u1ea5n gi\u00f3, b\u1ea1n \u0111ang gi\u1ea3i sai b\u00e0i to\u00e1n.<\/p>\n\n\n\n

Tr\u01b0\u1edbc khi \u0111i xa h\u01a1n, h\u00e3y nh\u00ecn l\u1ea1i m\u00e1y c\u1ee7a b\u1ea1n: ch\u00e0y \u0111ang \u0111\u1eb7t tr\u00ean khu\u00f4n c\u00f3 g\u00f3c bao nhi\u00eau\u2014v\u00e0 n\u00f3 \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh g\u00f3c, hay b\u1ea1n v\u1eabn \u0111ang c\u1ed1 \u201cgh\u00e9p\u201d b\u00e1n k\u00ednh m\u00e0 khu\u00f4n \u0111\u00e3 c\u1ed1 \u0111\u1ecbnh s\u1eb5n?<\/p>\n\n\n\n

Kh\u1eafc ph\u1ee5c hi\u1ec7n t\u01b0\u1ee3ng b\u1eadt g\u00f3c: T\u1ea1i sao th\u01b0\u1eddng c\u1ea7n ch\u00e0y g\u00f3c nh\u1ecdn \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c u\u1ed1n ch\u00ednh x\u00e1c 90 \u0111\u1ed9<\/h3>\n\n\n\n

L\u1ea5y v\u00ed d\u1ee5 th\u00e9p m\u1ec1m 3 mm trong khu\u00f4n V 24 mm. B\u1ea1n bi\u1ebft theo kinh nghi\u1ec7m r\u1eb1ng b\u00e1n k\u00ednh b\u00ean trong t\u1ef1 nhi\u00ean s\u1ebd r\u01a1i v\u00e0o kho\u1ea3ng 4,8 mm. B\u1ea1n l\u1eadp tr\u00ecnh u\u1ed1n 90 \u0111\u1ed9.<\/p>\n\n\n\n

B\u1ea1n th\u1ef1c hi\u1ec7n u\u1ed1n.<\/p>\n\n\n\n

Chi ti\u1ebft ra kh\u1ecfi m\u00e1y v\u1edbi g\u00f3c 92 \u0111\u1ed9.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c\u2014s\u1ef1 h\u1ed3i ph\u1ee5c \u0111\u00e0n h\u1ed3i sau khi t\u1ea3i tr\u1ecdng \u0111\u01b0\u1ee3c g\u1ee1 b\u1ecf. C\u00e1c s\u1ee3i \u1edf ph\u00eda ngo\u00e0i b\u1ecb k\u00e9o gi\u00e3n, c\u00f2n c\u00e1c s\u1ee3i b\u00ean trong b\u1ecb n\u00e9n l\u1ea1i. Khi b\u1ea1n nh\u1ea3 l\u1ef1c, m\u1ed9t ph\u1ea7n c\u1ee7a \u1ee9ng su\u1ea5t \u0111\u00f3 \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng v\u00e0 g\u00f3c m\u1edf ra.<\/p>\n\n\n\n

B\u00e2y gi\u1edd h\u00e3y xem \u0111i\u1ec1u g\u00ec x\u1ea3y ra n\u1ebfu b\u1ea1n d\u00f9ng ch\u00e0y 90 \u0111\u1ed9 \u0111\u1ec3 c\u1ed1 t\u1ea1o ra m\u1ed9t chi ti\u1ebft 90 \u0111\u1ed9. Khi b\u1ea1n \u00e9p s\u00e2u h\u01a1n \u0111\u1ec3 u\u1ed1n qu\u00e1 m\u1ee9c\u2014gi\u1ea3 s\u1eed 88 \u0111\u1ed9 khi c\u00f3 t\u1ea3i\u2014c\u00e1c th\u00e0nh b\u00ean c\u1ee7a ch\u00e0y b\u1eaft \u0111\u1ea7u ch\u00e8n v\u00e0o v\u1eadt li\u1ec7u. B\u1ea1n h\u1ebft kho\u1ea3ng h\u1edf tr\u01b0\u1edbc khi \u0111\u1ea1t \u0111\u1ebfn g\u00f3c u\u1ed1n qu\u00e1 m\u1ee9c m\u00e0 b\u1ea1n c\u1ea7n. H\u00ecnh d\u1ea1ng c\u1ee7a ch\u00e0y g\u00e2y c\u1ea3n tr\u1edf v\u1edbi chi ti\u1ebft tr\u01b0\u1edbc khi v\u1eadt li\u1ec7u b\u1ecb ch\u1ea3y d\u1ebbo \u0111\u1ee7 \u0111\u1ec3 b\u00f9 cho \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u00fd do ch\u00fang ta d\u00f9ng ch\u00e0y nh\u1ecdn h\u01a1n\u201488\u00b0, 85\u00b0, \u0111\u00f4i khi 80\u00b0\u2014\u0111\u1ec3 t\u1ea1o ra g\u00f3c ho\u00e0n thi\u1ec7n 90\u00b0. Ch\u00e0y nh\u1ecdn h\u01a1n cho ph\u00e9p c\u00f3 kho\u1ea3ng h\u1edf g\u00f3c \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 u\u1ed1n v\u01b0\u1ee3t qu\u00e1 90 \u0111\u1ed9 khi c\u00f3 t\u1ea3i m\u00e0 kh\u00f4ng b\u1ecb c\u1ea3n c\u01a1 h\u1ecdc. N\u00f3 gi\u1ed1ng nh\u01b0 vi\u1ec7c \u0111\u1eb7t b\u1ea3n l\u1ec1 c\u1eeda h\u01a1i qu\u00e1 g\u00f3c vu\u00f4ng \u0111\u1ec3 khi tr\u1ecdng l\u01b0\u1ee3ng c\u00e1nh c\u1eeda k\u00e9o xu\u1ed1ng, n\u00f3 t\u1ef1 c\u00e2n ch\u1ec9nh v\u1ec1 v\u1ecb tr\u00ed th\u1eb3ng.<\/p>\n\n\n\n

Ch\u00e0y kh\u00f4ng l\u00e0m b\u00e1n k\u00ednh nh\u1ecf h\u01a1n. N\u00f3 t\u1ea1o cho b\u1ea1n kho\u1ea3ng h\u1edf \u0111\u1ec3 u\u1ed1n v\u01b0\u1ee3t m\u1ee9c, nh\u1edd \u0111\u00f3 khi \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c x\u1ea3y ra, b\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c g\u00f3c mong mu\u1ed1n.<\/p>\n\n\n\n

Gi\u1edd h\u00e3y n\u00f3i th\u1eadt ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

H\u00e3y th\u1eed nghi\u1ec7m \u0111i\u1ec1u n\u00e0y tr\u00ean ph\u1ebf li\u1ec7u tr\u01b0\u1edbc.<\/p>\n\n\n\n

\u0110\u00e0n h\u1ed3i ng\u01b0\u1ee3c thay \u0111\u1ed5i theo \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 b\u00e1n k\u00ednh b\u00ean trong. B\u00e1n k\u00ednh nh\u1ecf h\u01a1n (V h\u1eb9p h\u01a1n) l\u00e0m t\u0103ng bi\u1ebfn d\u1ea1ng d\u1ebbo v\u00e0 gi\u1ea3m ph\u1ea7n tr\u0103m \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c. V r\u1ed9ng h\u01a1n l\u00e0m t\u0103ng b\u00e1n k\u00ednh v\u00e0 t\u0103ng \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a r\u1eb1ng g\u00f3c ch\u00e0y b\u1ea1n c\u1ea7n gi\u00e1n ti\u1ebfp ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c ch\u1ecdn khu\u00f4n. Thay \u0111\u1ed5i khu\u00f4n, v\u00e0 g\u00f3c u\u1ed1n qu\u00e1 m\u1ee9c b\u1ea1n c\u1ea7n c\u0169ng thay \u0111\u1ed5i.<\/p>\n\n\n\n

V\u1eady khi b\u1ea1n ch\u1ecdn khu\u00f4n ch\u1eef V \u0111\u00f3, b\u1ea1n c\u00f3 t\u00ednh \u0111\u1ebfn m\u1ee9c \u0111\u00e0n h\u1ed3i ng\u01b0\u1ee3c m\u00e0 h\u1ee3p kim c\u1ee7a b\u1ea1n s\u1ebd tr\u1ea3 l\u1ea1i kh\u00f4ng\u2014v\u00e0 li\u1ec7u g\u00f3c ch\u00e0y hi\u1ec7n t\u1ea1i c\u1ee7a b\u1ea1n c\u00f3 cho ph\u00e9p \u0111\u1ea1t \u0111\u01b0\u1ee3c g\u00f3c u\u1ed1n qu\u00e1 m\u1ee9c c\u1ea7n thi\u1ebft m\u00e0 kh\u00f4ng b\u1ecb c\u1ea3n \u1edf th\u00e0nh b\u00ean kh\u00f4ng?<\/p>\n\n\n\n

B\u00e1n k\u00ednh m\u0169i ch\u00e0y so v\u1edbi b\u00e1n k\u00ednh u\u1ed1n t\u1ed1i thi\u1ec3u: N\u01a1i hi\u1ec7n t\u01b0\u1ee3ng c\u1ea3n tr\u1edf v\u00e0 u\u1ed1n s\u1eafc b\u1eaft \u0111\u1ea7u<\/h3>\n\n\n\n

Gi\u1edd h\u00e3y n\u00f3i v\u1ec1 b\u00e1n k\u00ednh \u0111\u1ea7u m\u0169i ch\u00e0y, v\u00ec \u0111\u00e2y l\u00e0 ph\u1ea7n khi\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi b\u1ed1i r\u1ed1i.<\/p>\n\n\n\n

B\u1ea1n \u0111ang u\u1ed1n th\u00e9p kh\u00f4ng g\u1ec9 304 d\u00e0y 0,125 inch trong khu\u00f4n ch\u1eef V r\u1ed9ng 1 inch. Khu\u00f4n cho bi\u1ebft b\u00e1n k\u00ednh b\u00ean trong t\u1ef1 nhi\u00ean s\u1ebd v\u00e0o kho\u1ea3ng 0,160 \u0111\u1ebfn 0,200 inch t\u00f9y theo l\u00f4 v\u1eadt li\u1ec7u. B\u1ea1n l\u1eafp ch\u00e0y c\u00f3 b\u00e1n k\u00ednh \u0111\u1ea7u 0,118 inch v\u00ec b\u1ea1n mu\u1ed1n n\u00f3 \u201cs\u1eafc n\u00e9t\u201d.\u201d<\/p>\n\n\n\n

Chi ti\u1ebft sau khi u\u1ed1n c\u00f3 b\u00e1n k\u00ednh b\u00ean trong ho\u00e0n to\u00e0n kh\u00f4ng g\u1ea7n 0,118. N\u00f3 g\u1ea7n h\u01a1n 0,180. V\u00ec khu\u00f4n \u0111\u00e3 quy\u1ebft \u0111\u1ecbnh nh\u01b0 v\u1eady.<\/p>\n\n\n\n

Nh\u01b0ng c\u00f2n m\u1ed9t \u0111i\u1ec1u kh\u00e1c \u0111\u00e3 x\u1ea3y ra. V\u1eadt li\u1ec7u b\u1ecb m\u1ecfng \u0111i r\u00f5 r\u1ec7t t\u1ea1i \u0111\u1ec9nh, v\u00e0 b\u1ea1n th\u1ea5y m\u1ed9t v\u1ebft c\u0103ng nh\u1eb9 tr\u00ean b\u1ec1 m\u1eb7t ngo\u00e0i. T\u1ea1i sao? V\u00ec khi b\u00e1n k\u00ednh m\u0169i ch\u00e0y ti\u1ebfn g\u1ea7n ho\u1eb7c nh\u1ecf h\u01a1n b\u00e1n k\u00ednh u\u1ed1n t\u1ed1i thi\u1ec3u c\u1ee7a lo\u1ea1i h\u1ee3p kim v\u00e0 \u0111\u1ed9 d\u00e0y \u0111\u00f3, b\u1ea1n t\u1eadp trung \u1ee9ng su\u1ea5t t\u1ea1i \u0111i\u1ec3m ti\u1ebfp x\u00fac trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh u\u1ed1n. B\u1ea1n kh\u00f4ng thay \u0111\u1ed5i b\u00e1n k\u00ednh u\u1ed1n trong kh\u00f4ng trung cu\u1ed1i c\u00f9ng; b\u1ea1n \u0111ang thay \u0111\u1ed5i c\u00e1ch m\u00e0 qu\u00e1 tr\u00ecnh u\u1ed1n b\u1eaft \u0111\u1ea7u.<\/p>\n\n\n\n

B\u00e1n k\u00ednh u\u1ed1n t\u1ed1i thi\u1ec3u kh\u00f4ng ph\u1ea3i l\u00e0 l\u1eddi g\u1ee3i \u00fd. V\u1edbi nhi\u1ec1u lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9, n\u00f3 kho\u1ea3ng g\u1ea5p 1 l\u1ea7n \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u \u0111\u1ec3 u\u1ed1n an to\u00e0n theo h\u01b0\u1edbng vu\u00f4ng g\u00f3c v\u1edbi th\u1edb. U\u1ed1n nh\u1ecf h\u01a1n th\u1ebf v\u00e0 b\u1ea1n c\u00f3 nguy c\u01a1 n\u1ee9t g\u00e3y. N\u1ebfu m\u0169i ch\u00e0y c\u1ee7a b\u1ea1n s\u1eafc h\u01a1n nhi\u1ec1u so v\u1edbi m\u1ee9c v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c, b\u1ea1n t\u1ea1o ra bi\u1ebfn d\u1ea1ng c\u1ee5c b\u1ed9 tr\u01b0\u1edbc khi t\u1ea5m kim lo\u1ea1i chuy\u1ec3n h\u1eb3n sang tr\u1ea1ng th\u00e1i u\u1ed1n ba \u0111i\u1ec3m trong kh\u00f4ng kh\u00ed.<\/p>\n\n\n\n

N\u00f3 gi\u1ed1ng nh\u01b0 b\u1eaft \u0111\u1ea7u g\u1ea5p b\u00eca c\u1ee9ng b\u1eb1ng l\u01b0\u1ee1i dao thay v\u00ec ng\u00f3n tay b\u1ea1n\u2014b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n n\u00f3, nh\u01b0ng c\u0169ng c\u00f3 th\u1ec3 c\u1eaft r\u00e1ch n\u00f3.<\/p>\n\n\n\n

B\u00e1n k\u00ednh m\u0169i ch\u00e0y ph\u1ea3i \u0111\u1ee7 nh\u1ecf \u0111\u1ec3 tr\u00e1nh ch\u1ea1m \u0111\u00e1y v\u00e0o b\u00e1n k\u00ednh b\u00ean trong \u0111ang h\u00ecnh th\u00e0nh, nh\u01b0ng c\u0169ng \u0111\u1ee7 l\u1edbn \u0111\u1ec3 tr\u00e1nh h\u01b0 h\u1ea1i do u\u1ed1n s\u1eafc v\u00e0 s\u1ef1 c\u1ea3n tr\u1edf khi g\u00f3c kh\u00e9p l\u1ea1i. \u0110\u00f3 l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh v\u1ec1 kho\u1ea3ng h\u1edf, kh\u00f4ng ph\u1ea3i v\u1ec1 b\u00e1n k\u00ednh.<\/p>\n\n\n\n

H\u00e3y xem thi\u1ebft l\u1eadp hi\u1ec7n t\u1ea1i c\u1ee7a b\u1ea1n: m\u0169i ch\u00e0y c\u1ee7a b\u1ea1n c\u00f3 nh\u1ecf h\u01a1n th\u00f4ng s\u1ed1 b\u00e1n k\u00ednh u\u1ed1n t\u1ed1i thi\u1ec3u c\u1ee7a v\u1eadt li\u1ec7u kh\u00f4ng\u2014v\u00e0 n\u1ebfu c\u00f3, b\u1ea1n c\u00f3 s\u1eb5n s\u00e0ng \u0111\u1ed1i m\u1eb7t v\u1edbi \u1ee9ng su\u1ea5t b\u1ec1 m\u1eb7t v\u00e0 nguy c\u01a1 n\u1ee9t g\u00e3y \u0111\u1ebfn t\u1eeb l\u1ef1a ch\u1ecdn \u0111\u00f3 kh\u00f4ng?<\/p>\n\n\n\n

Ch\u00e0y c\u1ed5 ng\u1ed7ng v\u00e0 d\u1ee5ng c\u1ee5 g\u1eadp m\u00e9p: X\u1eed l\u00fd c\u00e1c bi\u00ean d\u1ea1ng \u0111\u1eb7c bi\u1ec7t l\u00e0m ph\u1ee9c t\u1ea1p c\u00e1c quy t\u1eafc th\u00f4ng th\u01b0\u1eddng<\/h3>\n\n\n\n

Gi\u1edd ch\u00fang ta l\u00e0m ph\u1ee9c t\u1ea1p v\u1ea5n \u0111\u1ec1 th\u00eam m\u1ed9t ch\u00fat.<\/p>\n\n\n\n

B\u1ea1n c\u00f3 m\u1ed9t chi ti\u1ebft v\u1edbi c\u00e1c g\u1edd h\u1ed3i s\u1ebd va v\u00e0o th\u00e2n ch\u00e0y ti\u00eau chu\u1ea9n \u1edf b\u01b0\u1edbc u\u1ed1n th\u1ee9 hai. V\u00ec v\u1eady b\u1ea1n ch\u1ecdn ch\u00e0y c\u1ed5 ng\u1ed7ng. H\u1ecdng s\u00e2u. Bi\u00ean d\u1ea1ng kho\u00e9t r\u1ed7ng.<\/p>\n\n\n\n

B\u00e1n k\u00ednh b\u00ean trong c\u00f3 thay \u0111\u1ed5i kh\u00f4ng?<\/p>\n\n\n\n

Kh\u00f4ng. V\u1eabn ch\u00ednh V-die x\u00e1c \u0111\u1ecbnh \u0111i\u1ec1u \u0111\u00f3 trong qu\u00e1 tr\u00ecnh u\u1ed1n kh\u00f4ng t\u1ef1a. Th\u1ee9 thay \u0111\u1ed5i l\u00e0 h\u00ecnh h\u1ecdc khe h\u1edf. Gooseneck (c\u1ed5 ng\u1ed7ng) t\u1ed3n t\u1ea1i \u0111\u1ec3 c\u00e1c ch\u00e2n u\u1ed1n \u0111\u00e3 h\u00ecnh th\u00e0nh tr\u01b0\u1edbc \u0111\u00f3 c\u00f3 th\u1ec3 \u0111i qua th\u00e2n ch\u00e0y m\u00e0 kh\u00f4ng va ch\u1ea1m. \u0110\u00e2y l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p v\u1ec1 kh\u00f4ng gian, kh\u00f4ng ph\u1ea3i v\u1ec1 b\u00e1n k\u00ednh.<\/p>\n\n\n\n

C\u00e1c d\u1ee5ng c\u1ee5 \u00e9p m\u00e9p (hemming tools) \u0111\u1ea9y \u0111i\u1ec1u n\u00e0y \u0111i xa h\u01a1n n\u1eefa. M\u1ed9t ch\u00e0y nh\u1ecdn ti\u00eau chu\u1ea9n v\u00e0 V-die b\u1eaft \u0111\u1ea7u u\u1ed1n \u0111\u1ebfn kho\u1ea3ng 30 \u0111\u1ed9. Sau \u0111\u00f3, m\u1ed9t ch\u00e0y \u00e9p ph\u1eb3ng s\u1ebd \u0111\u00f3ng m\u00e9p l\u1ea1i. \u1ede th\u1eddi \u0111i\u1ec3m \u0111\u00f3, b\u1ea1n kh\u00f4ng c\u00f2n u\u1ed1n kh\u00f4ng t\u1ef1a n\u1eefa \u2014 b\u1ea1n \u0111ang \u00e9p \u0111\u00e1y \u0111\u1ec3 l\u00e0m ph\u1eb3ng m\u00e9p. V\u1eadt l\u00fd thay \u0111\u1ed5i. Ti\u1ebfp x\u00fac to\u00e0n ph\u1ea7n. L\u1ef1c n\u00e9n cao. Gi\u1edd th\u00ec h\u00ecnh h\u1ecdc c\u1ee7a ch\u00e0y ch\u1eafc ch\u1eafn \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u00ecnh d\u1ea1ng cu\u1ed1i c\u00f9ng v\u00ec b\u1ea1n \u0111\u00e3 r\u1eddi kh\u1ecfi th\u1ebf gi\u1edbi ba \u0111i\u1ec3m.<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c lo\u1ea1i khu\u00f4n quay v\u00e0 khu\u00f4n l\u1eafc gi\u1ea3m l\u1ef1c n\u00e9n: ch\u00fang thay \u0111\u1ed5i c\u00e1ch l\u1ef1c \u0111\u01b0\u1ee3c truy\u1ec1n v\u00e0 c\u00e1ch ma s\u00e1t di\u1ec5n ra trong qu\u00e1 tr\u00ecnh quay. Nh\u01b0ng ngay c\u1ea3 khi \u0111\u00f3, trong giai \u0111o\u1ea1n u\u1ed1n kh\u00f4ng t\u1ef1a ban \u0111\u1ea7u, h\u00ecnh h\u1ecdc c\u1ee7a khu\u00f4n v\u1eabn chi ph\u1ed1i b\u00e1n k\u00ednh \u0111ang h\u00ecnh th\u00e0nh cho \u0111\u1ebfn khi \u0111\u1ea1t ti\u1ebfp x\u00fac to\u00e0n ph\u1ea7n.<\/p>\n\n\n\n

D\u1ee5ng c\u1ee5 kh\u00e1c nhau, giai \u0111o\u1ea1n kh\u00e1c nhau, quy t\u1eafc kh\u00e1c nhau.<\/p>\n\n\n\n

V\u00ec v\u1eady, \u0111\u00e2y l\u00e0 \u0111i\u1ec1u b\u1ea1n c\u1ea7n kh\u1eafc s\u00e2u trong \u0111\u1ea7u: trong u\u1ed1n kh\u00f4ng t\u1ef1a thu\u1ea7n t\u00fay, kh\u1ea9u \u0111\u1ed9 khu\u00f4n (die opening) quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh b\u00ean trong; ch\u00e0y quy\u1ebft \u0111\u1ecbnh c\u00e1ch b\u1ea1n \u0111\u1ea1t v\u00e0 ki\u1ec3m so\u00e1t g\u00f3c m\u00e0 kh\u00f4ng b\u1ecb c\u1ea3n tr\u1edf. Ngay khi b\u1ea1n \u00e9p th\u00e0nh ti\u1ebfp x\u00fac to\u00e0n ph\u1ea7n \u2014 \u00e9p \u0111\u00e1y (bottoming) ho\u1eb7c d\u1eadp (coining) \u2014 b\u1ea1n \u0111\u00e3 ho\u00e0n to\u00e0n \u0111\u1ed5i lu\u1eadt cu\u1ed9c ch\u01a1i.<\/p>\n\n\n\n

Khi b\u1ea1n nh\u00ecn v\u00e0o c\u00f4ng vi\u1ec7c hi\u1ec7n t\u1ea1i c\u1ee7a m\u00ecnh, b\u1ea1n c\u00f3 th\u1ef1c s\u1ef1 \u0111ang u\u1ed1n kh\u00f4ng t\u1ef1a \u2014 hay \u0111ang d\u1ea7n chuy\u1ec3n sang \u00e9p \u0111\u00e1y m\u00e0 kh\u00f4ng t\u1ef1 nh\u1eadn ra?<\/p>\n\n\n\n

N\u01a1i m\u00e0 logic c\u1ee7a u\u1ed1n kh\u00f4ng t\u1ef1a s\u1ee5p \u0111\u1ed5: \u00c9p \u0111\u00e1y v\u00e0 D\u1eadp<\/h2>\n\n\n\n

B\u1ea1n mu\u1ed1n bi\u1ebft c\u00e1ch c\u1ed1 \u00fd ch\u1ecdn g\u00f3c ch\u00e0y v\u00e0 b\u00e1n k\u00ednh m\u0169i ch\u00e0y sau khi khu\u00f4n \u0111\u00e3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 ph\u1ea7n m\u00e0 h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi kh\u00f4ng bao gi\u1edd n\u00f3i ra: logic \u201c\u01b0u ti\u00ean khu\u00f4n\u201d \u0111\u00f3 ch\u1ec9 \u0111\u00fang khi b\u1ea1n th\u1ef1c s\u1ef1 \u0111ang u\u1ed1n kh\u00f4ng t\u1ef1a. Ngay khi b\u1ea1n \u00e9p v\u1eadt li\u1ec7u \u0111\u1ea1t ti\u1ebfp x\u00fac to\u00e0n ph\u1ea7n \u2014 \u00e9p \u0111\u00e1y ho\u1eb7c d\u1eadp \u2014 b\u1ea1n \u0111\u00e3 thay \u0111\u1ed5i y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh. C\u00e1c quy t\u1eafc tr\u01b0\u1ee3t kh\u1ecfi n\u1ec1n t\u1ea3ng c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

Trong u\u1ed1n kh\u00f4ng t\u1ef1a, t\u1ea5m kim lo\u1ea1i c\u01b0 x\u1eed nh\u01b0 m\u1ed9t t\u1ea5m v\u00e1n \u0111\u1eb7t tr\u00ean hai gi\u00e1 \u0111\u1ee1 \u2014 hai vai khu\u00f4n \u2014 trong khi ch\u00e0y ch\u1ec9 nh\u1ea5n \u1edf gi\u1eefa; di chuy\u1ec3n hai gi\u00e1 \u0111\u1ee1 th\u00ec \u0111\u01b0\u1eddng cong thay \u0111\u1ed5i, ch\u1ee9 kh\u00f4ng ph\u1ea3i ng\u00f3n tay \u0111ang \u0111\u1ea9y. Nh\u01b0ng khi b\u1ea1n \u00e9p \u0111\u00e1y, b\u1ea1n bu\u1ed9c t\u1ea5m v\u00e1n \u0111\u00f3 h\u1ea1 xu\u1ed1ng cho \u0111\u1ebfn khi n\u00f3 kh\u1edbp v\u1edbi g\u00f3c khu\u00f4n v\u00e0 ti\u1ebfp t\u1ee5c \u00e9p cho \u0111\u1ebfn khi m\u0169i ch\u00e0y h\u1eb1n v\u00e0o v\u1eadt li\u1ec7u. L\u00fac n\u00e0y ch\u00e0y kh\u00f4ng ch\u1ec9 d\u1eabn h\u01b0\u1edbng g\u00f3c n\u1eefa. N\u00f3 \u0111ang tr\u1ef1c ti\u1ebfp \u0111\u1ecbnh h\u00ecnh kim lo\u1ea1i d\u01b0\u1edbi t\u1ea3i.<\/p>\n\n\n\n

M\u1ed9t tr\u00f2 ch\u01a1i kh\u00e1c.<\/p>\n\n\n\n

V\u00e0 n\u1ebfu b\u1ea1n kh\u00f4ng bi\u1ebft m\u00ecnh \u0111ang ch\u01a1i theo lu\u1eadt n\u00e0o, b\u1ea1n s\u1ebd thi\u1ebft l\u1eadp nh\u01b0 m\u1ed9t ng\u01b0\u1eddi u\u1ed1n kh\u00f4ng t\u1ef1a r\u1ed3i t\u1ef1 h\u1ecfi t\u1ea1i sao b\u00e1n k\u00ednh l\u1ea1i b\u1ea5t ng\u1edd theo ch\u00e0y thay v\u00ec theo khu\u00f4n. V\u00ec v\u1eady, tr\u01b0\u1edbc khi ch\u00fang ta b\u00e0n \u0111\u1ebfn vi\u1ec7c ch\u1ecdn ch\u00e0y m\u1ed9t c\u00e1ch t\u1ef1 tin, h\u00e3y n\u00f3i th\u1eadt \u0111i \u2014 b\u1ea1n \u0111ang u\u1ed1n kh\u00f4ng t\u1ef1a, hay \u0111ang ch\u00f4n ph\u1ea7n chi ti\u1ebft v\u00e0o khu\u00f4n m\u00e0 g\u1ecdi l\u00e0 \u201c\u0111\u1ee7 g\u1ea7n\u201d?<\/p>\n\n\n\n

T\u1ea1i sao \u00e9p \u0111\u00e1y l\u1ea1i chuy\u1ec3n quy\u1ec1n ki\u1ec3m so\u00e1t b\u00e1n k\u00ednh tr\u1edf v\u1ec1 ph\u00eda \u0111\u1ea7u ch\u00e0y<\/h3>\n\n\n\n

\u00c9p \u0111\u00e1y b\u1eaft \u0111\u1ea7u gi\u1ed1ng nh\u01b0 u\u1ed1n kh\u00f4ng t\u1ef1a. Ba \u0111i\u1ec3m ti\u1ebfp x\u00fac. T\u1ea5m n\u1ed5i. B\u00e1n k\u00ednh do khu\u00f4n quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n

R\u1ed3i b\u1ea1n ti\u1ebfp t\u1ee5c \u00e9p.<\/p>\n\n\n\n

\u0110\u1ea7u ti\u00ean, v\u1eadt li\u1ec7u t\u00ec ch\u1eb7t v\u00e0o g\u00f3c khu\u00f4n \u2014 kh\u1edbp v\u1edbi g\u00f3c bao c\u1ee7a khu\u00f4n tr\u1eeb \u0111i \u0111\u1ed9 h\u1ed3i \u0111\u00e0n h\u1ed3i d\u1ef1 ki\u1ebfn. \u1ede th\u1eddi \u0111i\u1ec3m \u0111\u00f3, h\u00ecnh h\u1ecdc khu\u00f4n v\u1eabn chi ph\u1ed1i. Nh\u01b0ng khi b\u1ea1n th\u00eam h\u00e0nh tr\u00ecnh v\u00e0 l\u1ef1c n\u00e9n, m\u0169i ch\u00e0y b\u1eaft \u0111\u1ea7u \u00e9p l\u00ean b\u1ec1 m\u1eb7t trong v\u01b0\u1ee3t qu\u00e1 b\u00e1n k\u00ednh u\u1ed1n kh\u00f4ng t\u1ef1a t\u1ef1 nhi\u00ean. B\u1ea1n kh\u00f4ng c\u00f2n \u0111\u1ec3 t\u1ea5m kim lo\u1ea1i t\u1ef1 do gi\u1eefa vai khu\u00f4n n\u1eefa. B\u1ea1n \u0111ang b\u1eaft n\u00f3 ph\u1ea3i tu\u00e2n theo h\u00ecnh d\u1ea1ng.<\/p>\n\n\n\n

\u0110\u00f3 ch\u00ednh l\u00e0 s\u1ef1 chuy\u1ec3n \u0111\u1ed5i.<\/p>\n\n\n\n

B\u00e1n k\u00ednh ch\u00e0y gi\u1edd c\u00f3 \u0111\u1ee7 \u00e1p l\u1ef1c ph\u00eda sau \u0111\u1ec3 l\u00e0m bi\u1ebfn d\u1ea1ng d\u1ebbo b\u1ec1 m\u1eb7t b\u00ean trong. Kim lo\u1ea1i b\u1ecb \u00e9p ch\u1eb7t v\u00e0o m\u0169i ch\u00e0y h\u01a1n nhi\u1ec1u so v\u1edbi khi u\u1ed1n kh\u00f4ng t\u1ef1a. B\u1ea1n \u0111\u00e3 ph\u1ee7 nh\u1eadn quy t\u1eafc \u201ckhu\u00f4n quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh\u201d b\u1eb1ng s\u1ee9c \u00e9p c\u01a1 h\u1ecdc.<\/p>\n\n\n\n

V\u00e0 s\u1ee9c \u00e9p c\u01a1 h\u1ecdc th\u00ec c\u00f3 h\u1ec7 qu\u1ea3 ri\u00eang.<\/p>\n\n\n\n

\u00c9p \u0111\u00e1y c\u00f3 th\u1ec3 b\u00f9 \u0111\u1eafp cho c\u00e1c m\u00e1y \u00e9p phanh c\u0169 v\u1edbi kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n h\u00e0nh tr\u00ecnh k\u00e9m, v\u00ec khi chi ti\u1ebft \u0111\u00e3 \u0111\u01b0\u1ee3c \u00e9p kh\u00edt v\u00e0o khu\u00f4n, c\u00e1c sai l\u1ec7ch nh\u1ecf v\u1ec1 v\u1ecb tr\u00ed \u0111\u1ea7u tr\u01b0\u1ee3t (ram) kh\u00f4ng c\u00f2n quan tr\u1ecdng. G\u00f3c khu\u00f4n tr\u1edf th\u00e0nh m\u1ed1c tham chi\u1ebfu. \u0110\u00f3 l\u00e0 l\u00fd do m\u1ed9t s\u1ed1 th\u1ee3 l\u00e2u n\u0103m r\u1ea5t tin t\u01b0\u1edfng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y tr\u00ean m\u00e1y \u0111\u00e3 m\u00f2n. Nh\u01b0ng b\u1ea1n \u0111ang \u0111\u00e1nh \u0111\u1ed5i t\u00ednh \u0111\u00e0n h\u1ed3i c\u00f3 ki\u1ec3m so\u00e1t l\u1ea5y s\u1ef1 in d\u1ea5u c\u01a1 h\u1ecdc.<\/p>\n\n\n\n

N\u00f3 gi\u1ed1ng nh\u01b0 vi\u1ec7c \u1ea5n m\u1ed9t \u0111\u1ed3ng xu v\u00e0o ch\u00ec m\u1ec1m b\u1eb1ng ng\u00f3n c\u00e1i thay v\u00ec \u0111\u1ec3 n\u00f3 ngh\u1ec9 tr\u00ean m\u1ed9t khu\u00f4n \u2014 b\u1ea1n s\u1ebd c\u00f3 \u0111\u01b0\u1ee3c h\u00ecnh d\u1ea1ng, nh\u01b0ng b\u1ea1n \u0111\u00e3 l\u00e0m bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n v\u1eadt li\u1ec7u \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u \u0111\u00f3.<\/p>\n\n\n\n

V\u1eady b\u00e2y gi\u1edd h\u00e3y t\u1ef1 h\u1ecfi: tr\u00ean m\u00e1y hi\u1ec7n t\u1ea1i c\u1ee7a b\u1ea1n, b\u1ea1n \u0111ang \u00e9p ch\u1ea1m \u0111\u00e1y v\u00ec quy tr\u00ecnh y\u00eau c\u1ea7u \u2014 hay v\u00ec m\u00e1y phanh c\u1ee7a b\u1ea1n kh\u00f4ng th\u1ec3 \u0111\u1ea1t ch\u00ednh x\u00e1c \u0111\u1ed9 s\u00e2u u\u1ed1n gi\u00f3 trong ph\u1ea1m vi v\u00e0i ph\u1ea7n ngh\u00ecn inch?<\/p>\n\n\n\n

S\u1ef1 \u0111\u00e1nh \u0111\u1ed5i v\u1ec1 t\u1ea3i tr\u1ecdng l\u1edbn: \u0110\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc so v\u1edbi tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5 c\u1ee7a m\u00e1y phanh \u00e9p<\/h3>\n\n\n\n

H\u00e3y n\u00f3i v\u1ec1 l\u1ef1c.<\/p>\n\n\n\n

U\u1ed1n gi\u00f3 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u gi\u1ea3 \u0111\u1ecbnh kho\u1ea3ng 1 \u0111\u1ebfn 2 t\u1ea5n m\u1ed7i inch tr\u00ean th\u00e9p th\u01b0\u1eddng. U\u1ed1n ch\u1ea1m \u0111\u00e1y t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3. C\u00e1n xu c\u00f3 th\u1ec3 v\u01b0\u1ee3t qu\u00e1 50 t\u1ea5n m\u1ed7i inch. \u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 sai s\u1ed1 l\u00e0m tr\u00f2n. \u0110\u00f3 l\u00e0 m\u1ed9t lo\u1ea1i \u1ee9ng su\u1ea5t ho\u00e0n to\u00e0n kh\u00e1c t\u00e1c \u0111\u1ed9ng l\u00ean d\u1ee5ng c\u1ee5, \u0111\u1ea7u m\u00e1y, b\u00e0n m\u00e1y, ng\u00f3n \u0111\u1ecbnh v\u1ecb ph\u00eda sau v\u00e0 c\u1ea3 tinh th\u1ea7n c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n

Khi b\u1ea1n c\u00e1n xu, b\u1ea1n \u0111ang c\u1ed1 t\u00ecnh n\u00e9n v\u1eadt li\u1ec7u t\u1ea1i \u0111\u01b0\u1eddng u\u1ed1n v\u01b0\u1ee3t qua \u0111i\u1ec3m chuy\u1ec3n ti\u1ebfp \u0111\u00e0n h\u1ed3i \u2013 d\u1ebbo t\u1ef1 nhi\u00ean. B\u1ea1n l\u00e0m m\u1ecfng m\u1eb7t trong. B\u1ea1n gi\u1ea3m hi\u1ec7n t\u01b0\u1ee3ng h\u1ed3i \u0111\u00e0n h\u1ed3i g\u1ea7n nh\u01b0 b\u1eb1ng kh\u00f4ng b\u1eb1ng c\u00e1ch \u00e1p \u0111\u1ea3o n\u00f3. G\u00f3c u\u1ed1n tr\u1edf n\u00ean c\u00f3 th\u1ec3 l\u1eb7p l\u1ea1i c\u1ef1c k\u1ef3 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n

B\u1edfi v\u00ec b\u1ea1n \u0111\u00e3 \u0111\u00e1nh b\u1eadt h\u1ebft h\u1ed3i \u0111\u00e0n h\u1ed3i ra kh\u1ecfi n\u00f3.<\/p>\n\n\n\n

Nh\u01b0ng l\u1ef1c \u0111\u00f3 ph\u1ea3i truy\u1ec1n \u0111i \u0111\u00e2u \u0111\u00f3. V\u00e0o m\u00e0i m\u00f2n d\u1ee5ng c\u1ee5. V\u00e0o \u0111\u1ed9 l\u1ec7ch. V\u00e0o kh\u1ea3 n\u0103ng n\u1ee9t tr\u00ean c\u00e1c h\u1ee3p kim c\u00f3 \u0111\u1ed9 b\u1ec1n cao h\u01a1n. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t d\u1ee5ng c\u1ee5 kh\u00f4ng khuy\u1ebfn kh\u00edch u\u1ed1n ch\u1ea1m \u0111\u00e1y t\u00f9y ti\u1ec7n v\u00ec l\u00fd do \u0111\u00f3: t\u1ea3i tr\u1ecdng cao \u0111\u1ea9y nhanh s\u1ef1 m\u1ecfi v\u00e0 c\u00f3 th\u1ec3 l\u00e0m m\u1ebb \u0111\u1ea7u ch\u1ea7y, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng lo\u1ea1i c\u00f3 m\u0169i nh\u1ecf v\u00e0 g\u00f3c nh\u1ecdn.<\/p>\n\n\n\n

H\u00e3y th\u1eed nghi\u1ec7m \u0111i\u1ec1u n\u00e0y tr\u00ean ph\u1ebf li\u1ec7u tr\u01b0\u1edbc.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n kh\u0103ng kh\u0103ng mu\u1ed1n t\u00ednh t\u1ea3i tr\u1ecdng cho u\u1ed1n ch\u1ea1m \u0111\u00e1y ho\u1eb7c c\u00e1n xu, h\u00e3y d\u00f9ng b\u1ea3ng t\u1ea3i tr\u1ecdng ti\u00eau chu\u1ea9n cho \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u v\u00e0 nh\u00e2n v\u1edbi h\u1ec7 s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p \u2014 c\u01a1 s\u1edf u\u1ed1n gi\u00f3 so v\u1edbi h\u1ec7 s\u1ed1 nh\u00e2n c\u1ee7a u\u1ed1n ch\u1ea1m \u0111\u00e1y ho\u1eb7c c\u00e1n xu. C\u00e1c con s\u1ed1 \u0111\u00f3 s\u1ebd khi\u1ebfn b\u1ea1n t\u1ec9nh t\u00e1o ngay.<\/p>\n\n\n\n

\u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ea3i thi\u1ec7n. Tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5 gi\u1ea3m. M\u1ee9c c\u0103ng m\u00e1y t\u0103ng l\u00ean.<\/p>\n\n\n\n

V\u1eady phanh c\u1ee7a b\u1ea1n \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c t\u1ea3i tr\u1ecdng bao nhi\u00eau m\u1ed7i foot \u2014 v\u00e0 b\u1ea1n c\u00f3 \u0111ang ch\u1ea1y g\u1ea7n gi\u1edbi h\u1ea1n \u0111\u00f3 khi u\u1ed1n ch\u1ea1m \u0111\u00e1y kh\u00f4ng, hay b\u1ea1n ch\u1ec9 \u0111ang \u0111o\u00e1n v\u00e0 hy v\u1ecdng khung m\u00e1y s\u1ebd \u201ctha th\u1ee9\u201d cho b\u1ea1n?<\/p>\n\n\n\n

Khi n\u00e0o c\u00e1n xu l\u00e0 h\u1ee3p l\u00fd (v\u00e0 khi n\u00e0o n\u00f3 ch\u1ec9 che gi\u1ea5u v\u1ea5n \u0111\u1ec1 ch\u1ecdn khu\u00f4n k\u00e9m)<\/h3>\n\n\n\n

C\u00e1n xu c\u00f3 ch\u1ed7 \u0111\u1ee9ng ri\u00eang.<\/p>\n\n\n\n

V\u1eadt li\u1ec7u m\u1ecfng. Dung sai nghi\u00eam ng\u1eb7t. H\u1ed3i \u0111\u00e0n h\u1ed3i \u0111\u01b0\u1ee3c ph\u00e9p t\u1ed1i thi\u1ec3u. C\u00e1c c\u00f4ng \u0111o\u1ea1n ng\u1eafn m\u00e0 \u0111\u1ed9 l\u1eb7p k\u00edch th\u01b0\u1edbc quan tr\u1ecdng h\u01a1n chi ph\u00ed d\u1ee5ng c\u1ee5. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p nh\u01b0 v\u1eady, c\u00e1n xu c\u00f3 th\u1ec3 mang l\u1ea1i \u0111\u1ed9 ch\u00ednh x\u00e1c nh\u01b0 ph\u1eabu thu\u1eadt v\u00ec m\u0169i ch\u1ea7y th\u1ef1c s\u1ef1 tr\u1edf th\u00e0nh d\u1ee5ng c\u1ee5 t\u1ea1o b\u00e1n k\u00ednh v\u1edbi \u00e1p l\u1ef1c c\u1ef1c l\u1edbn.<\/p>\n\n\n\n

Nh\u01b0ng h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p?<\/p>\n\n\n\n

\u0110\u00f3 l\u00e0 m\u1ed9t \u201cmi\u1ebfng b\u0103ng\u201d cho m\u1ed9t l\u1ef1a ch\u1ecdn khu\u00f4n t\u1ec7.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n \u0111ang c\u00e1n xu th\u00e9p kh\u00f4ng g\u1ec9 0.125 ch\u1ec9 v\u00ec b\u00e1n k\u00ednh u\u1ed1n gi\u00f3 c\u1ee7a b\u1ea1n qu\u00e1 l\u1edbn, th\u00ec v\u1ea5n \u0111\u1ec1 th\u1ef1c s\u1ef1 c\u00f3 th\u1ec3 l\u00e0 l\u1ed7 V c\u1ee7a b\u1ea1n qu\u00e1 r\u1ed9ng so v\u1edbi b\u00e1n k\u00ednh b\u1ea1n c\u1ea7n. B\u1ea1n \u0111ang c\u1ed1 \u00e9p m\u0169i ch\u1ea7y \u201ct\u1ea1o ra\u201d b\u00e1n k\u00ednh b\u00ean trong nh\u1ecf h\u01a1n m\u1ee9c khu\u00f4n t\u1ef1 nhi\u00ean cho ph\u00e9p. \u0110\u00f3 kh\u00f4ng ph\u1ea3i ki\u1ec3m so\u00e1t quy tr\u00ecnh. \u0110\u00f3 l\u00e0 s\u1ef1 c\u1ed1 ch\u1ea5p.<\/p>\n\n\n\n

N\u1ebfu b\u1ea1n suy ngh\u0129 nh\u01b0 m\u1ed9t ng\u01b0\u1eddi v\u1eadn h\u00e0nh ch\u1ea5n \u00e9p \u0111\u00e1y trong khi \u0111ang ch\u1ea5n gi\u00f3, b\u1ea1n \u0111ang gi\u1ea3i sai b\u00e0i to\u00e1n.<\/p>\n\n\n\n

C\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 k\u1ef7 lu\u1eadt l\u00e0 ch\u1ecdn khu\u00f4n tr\u01b0\u1edbc: ch\u1ecdn l\u1ed7 V cho ra b\u00e1n k\u00ednh b\u00ean trong m\u00e0 v\u1eadt li\u1ec7u c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c m\u00e0 kh\u00f4ng b\u1ecb n\u1ee9t, sau \u0111\u00f3 ch\u1ecdn g\u00f3c ch\u1ea7y cho ph\u00e9p \u0111\u1ed9 ch\u00eanh c\u1ea7n thi\u1ebft khi u\u1ed1n v\u01b0\u1ee3t v\u00e0 b\u00e1n k\u00ednh m\u0169i t\u00f4n tr\u1ecdng b\u00e1n k\u00ednh u\u1ed1n t\u1ed1i thi\u1ec3u m\u00e0 kh\u00f4ng g\u00e2y h\u01b0 h\u1ea1i do u\u1ed1n s\u1eafc. Ch\u1ec9 c\u00e1n xu khi \u1ee9ng d\u1ee5ng th\u1ef1c s\u1ef1 \u0111\u00f2i h\u1ecfi h\u1ed3i \u0111\u00e0n h\u1ed3i b\u1eb1ng kh\u00f4ng \u2014 kh\u00f4ng ph\u1ea3i khi t\u00ednh to\u00e1n thi\u1ebft l\u1eadp g\u00e2y b\u1ea5t ti\u1ec7n.<\/p>\n\n\n\n

V\u1eady h\u00e3y trung th\u1ef1c v\u1edbi ch\u00ednh m\u00ecnh \u2014 b\u1ea1n \u0111ang ch\u1ecdn c\u00e1n xu v\u00ec b\u1ea3n v\u1ebd y\u00eau c\u1ea7u, hay v\u00ec b\u1ea1n kh\u00f4ng mu\u1ed1n \u0111\u1ed5i sang khu\u00f4n V ph\u00f9 h\u1ee3p ngay t\u1eeb \u0111\u1ea7u?<\/p>\n\n\n\n

Giao th\u1ee9c \u201cCh\u1ecdn Khu\u00f4n Tr\u01b0\u1edbc\u201d cho L\u1ea7n Ch\u1ea1y S\u1ea3n Xu\u1ea5t Ti\u1ebfp Theo c\u1ee7a B\u1ea1n<\/h2>\n\n\n\n

B\u1ea1n \u0111\u00e3 quy\u1ebft \u0111\u1ecbnh r\u1eb1ng b\u1ea1n s\u1ebd u\u1ed1n b\u1eb1ng kh\u00f4ng kh\u00ed. T\u1ed1t. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 kh\u1ea9u \u0111\u1ed9 c\u1ee7a khu\u00f4n s\u1ebd quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh b\u00ean trong, v\u00e0 ch\u00e0y ch\u1ec9 c\u00f3 nhi\u1ec7m v\u1ee5 t\u1ea1o \u0111\u1ed9 s\u00e2u v\u00e0 qu\u1ea3n l\u00fd kho\u1ea3ng h\u1edf\u2014kh\u00f4ng ph\u1ea3i \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t khu\u00f4n \u0111\u00fac. V\u00ec v\u1eady, c\u00e1ch duy nh\u1ea5t \u0111\u1ec3 tr\u00e1nh th\u00e9p kh\u00f4ng g\u1ec9 b\u1ecb n\u1ee9t v\u00e0 g\u00f3c u\u1ed1n b\u1ecb l\u1ec7ch l\u00e0 c\u1ed1 \u0111\u1ecbnh khu\u00f4n tr\u01b0\u1edbc v\u00e0 m\u1ecdi l\u1ef1a ch\u1ecdn kh\u00e1c ph\u1ea3i ph\u1ee5c v\u1ee5 cho quy\u1ebft \u0111\u1ecbnh \u0111\u00f3.<\/p>\n\n\n\n

\u0110\u00e2y l\u00e0 m\u1ed9t chu tr\u00ecnh. Ph\u00e1 v\u1ee1 n\u00f3, v\u00e0 b\u1ea1n s\u1ebd quay l\u1ea1i vi\u1ec7c \u0111o\u00e1n m\u00f2.<\/p>\n\n\n\n

Gi\u1ed1ng nh\u01b0 \u0111\u1eb7t m\u1ed9t t\u1ea5m v\u00e1n gi\u1eefa hai gi\u00e1 c\u01b0a, \u0111\u1ed9 cong m\u00e0 b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c ph\u1ee5 thu\u1ed9c v\u00e0o kho\u1ea3ng c\u00e1ch gi\u1eefa hai gi\u00e1 c\u01b0a\u2014kh\u00f4ng ph\u1ea3i h\u00ecnh d\u1ea1ng c\u1ee7a c\u00e2y g\u1eady b\u1ea1n nh\u1ea5n xu\u1ed1ng \u1edf gi\u1eefa. V\u00ec v\u1eady, tr\u01b0\u1edbc khi ch\u1ea1m v\u00e0o gi\u00e1 ch\u00e0y, b\u1ea1n ph\u1ea3i b\u1eaft \u0111\u1ea7u t\u1eeb y\u00eau c\u1ea7u b\u1ea3n v\u1ebd v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

B\u1ea1n \u0111ang u\u1ed1n g\u00ec, \u0111\u1ed9 d\u00e0y bao nhi\u00eau, v\u00e0 b\u1ea3n v\u1ebd th\u1ef1c s\u1ef1 y\u00eau c\u1ea7u b\u00e1n k\u00ednh b\u00ean trong l\u00e0 bao nhi\u00eau?<\/p>\n\n\n\n

B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh b\u00e1n k\u00ednh b\u00ean trong c\u1ea7n thi\u1ebft (kh\u00f4ng ch\u1ec9 l\u00e0 g\u00f3c m\u1ee5c ti\u00eau)<\/h3>\n\n\n\n

H\u1ea7u h\u1ebft ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111\u1ecdc g\u00f3c tr\u01b0\u1edbc. Ch\u00edn m\u01b0\u01a1i \u0111\u1ed9. B\u1ed1n m\u01b0\u01a1i l\u0103m. B\u1ea5t c\u1ee9 s\u1ed1 n\u00e0o.<\/p>\n\n\n\n

G\u00f3c th\u00ec d\u1ec5 nh\u00ecn. B\u00e1n k\u00ednh th\u00ec d\u1ec5 b\u1ecb b\u1ecf qua.<\/p>\n\n\n\n

Nh\u01b0ng v\u1ebft n\u1ee9t kh\u00f4ng quan t\u00e2m \u0111\u1ebfn g\u00f3c. N\u00f3 quan t\u00e2m \u0111\u1ebfn \u0111\u1ed9 k\u00e9o b\u00ean trong. N\u1ebfu b\u1ea3n v\u1ebd y\u00eau c\u1ea7u b\u00e1n k\u00ednh b\u00ean trong b\u1eb1ng 1\u00d7 \u0111\u1ed9 d\u00e0y tr\u00ean th\u00e9p kh\u00f4ng g\u1ec9 304, \u0111\u00f3 l\u00e0 m\u1ed9t t\u00ecnh hu\u1ed1ng kh\u00e1c so v\u1edbi 2\u00d7 \u0111\u1ed9 d\u00e0y. M\u1ed9t c\u00e1i c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n u\u1ed1n b\u1eb1ng kh\u00f4ng kh\u00ed. C\u00e1i c\u00f2n l\u1ea1i c\u00f3 th\u1ec3 y\u00eau c\u1ea7u khu\u00f4n ch\u1eb7t h\u01a1n ho\u1eb7c th\u1eadm ch\u00ed thay \u0111\u1ed5i quy tr\u00ecnh.<\/p>\n\n\n\n

N\u1ebfu b\u00e1n k\u00ednh kh\u00f4ng \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh, b\u1ea1n kh\u00f4ng m\u1eb7c \u0111\u1ecbnh suy \u0111o\u00e1n. B\u1ea1n quy\u1ebft \u0111\u1ecbnh d\u1ef1a tr\u00ean lo\u1ea1i v\u1eadt li\u1ec7u, \u0111\u1ed9 d\u00e0y, v\u00e0 ch\u1ee9c n\u0103ng. Th\u00e9p kh\u00f4ng g\u1ec9 c\u1ea7n b\u00e1n k\u00ednh l\u1edbn h\u01a1n th\u00e9p carbon m\u1ec1m \u1edf c\u00f9ng \u0111\u1ed9 d\u00e0y. V\u1eadt li\u1ec7u c\u01b0\u1eddng \u0111\u1ed9 cao c\u1ea7n b\u00e1n k\u00ednh l\u1edbn h\u01a1n n\u1eefa. \u0110\u00f3 l\u00e0 c\u01a1 h\u1ecdc, kh\u00f4ng ph\u1ea3i \u00fd ki\u1ebfn.<\/p>\n\n\n\n

V\u00ec v\u1eady, con s\u1ed1 \u0111\u1ea7u ti\u00ean b\u1ea1n ghi xu\u1ed1ng l\u00e0 \u0111\u1ed9 d\u00e0y. Con s\u1ed1 th\u1ee9 hai l\u00e0 b\u00e1n k\u00ednh b\u00ean trong c\u1ea7n thi\u1ebft\u2014\u0111\u01b0\u1ee3c ch\u1ec9 r\u00f5 ho\u1eb7c l\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean gi\u1edbi h\u1ea1n c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

Kh\u00f4ng ph\u1ea3i g\u00f3c.<\/p>\n\n\n\n

B\u1edfi v\u00ec g\u00f3c ch\u1ec9 l\u00e0 ki\u1ec3m so\u00e1t \u0111\u1ed9 s\u00e2u. B\u00e1n k\u00ednh m\u1edbi l\u00e0 ki\u1ec3m so\u00e1t h\u00ecnh h\u1ecdc.<\/p>\n\n\n\n

Ngay b\u00e2y gi\u1edd, v\u1edbi c\u00f4ng vi\u1ec7c ti\u1ebfp theo, b\u1ea1n c\u00f3 th\u1ec3 n\u00f3i r\u00f5 b\u00e1n k\u00ednh b\u00ean trong c\u1ea7n thi\u1ebft b\u1eb1ng s\u1ed1 li\u1ec7u th\u1ef1c \u2014 hay b\u1ea1n v\u1eabn ngh\u0129 \u201cch\u1ec9 l\u00e0 u\u1ed1n 90 \u0111\u1ed9\u201d?<\/p>\n\n\n\n

B\u01b0\u1edbc 2: Ch\u1ecdn chi\u1ec1u r\u1ed9ng khu\u00f4n V d\u1ef1a tr\u00ean \u0111\u1ed9 d\u00e0y, m\u1ee5c ti\u00eau b\u00e1n k\u00ednh, v\u00e0 chi\u1ec1u d\u00e0i g\u1edd t\u1ed1i thi\u1ec3u<\/h3>\n\n\n\n

B\u00e2y gi\u1edd ch\u00fang ta ch\u1ecdn khu\u00f4n.<\/p>\n\n\n\n

Trong u\u1ed1n kh\u00f4ng kh\u00ed th\u1ef1c t\u1ebf, \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u ph\u1ed5 bi\u1ebfn l\u00e0 kho\u1ea3ng 6\u00d7 \u0111\u1ebfn 10\u00d7 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u cho kh\u1ea9u \u0111\u1ed9 V, t\u00f9y theo v\u1eadt li\u1ec7u v\u00e0 b\u00e1n k\u00ednh mong mu\u1ed1n. Khu\u00f4n V h\u1eb9p cho b\u00e1n k\u00ednh b\u00ean trong nh\u1ecf h\u01a1n. Khu\u00f4n V r\u1ed9ng cho b\u00e1n k\u00ednh l\u1edbn h\u01a1n v\u00e0 \u00edt l\u1ef1c h\u01a1n tr\u00ean m\u1ed7i inch\u2014nh\u01b0ng k\u00e9o c\u0103ng b\u00ean trong nhi\u1ec1u h\u01a1n.<\/p>\n\n\n\n

H\u00e3y th\u1eed nghi\u1ec7m \u0111i\u1ec1u n\u00e0y tr\u00ean ph\u1ebf li\u1ec7u tr\u01b0\u1edbc.<\/p>\n\n\n\n

\u0110\u1ec3 t\u00ednh to\u00e1n g\u1ea7n \u0111\u00fang trong u\u1ed1n kh\u00f4ng kh\u00ed, b\u00e1n k\u00ednh b\u00ean trong th\u01b0\u1eddng n\u1eb1m kho\u1ea3ng 15\u201320% kh\u1ea9u \u0111\u1ed9 V tr\u00ean th\u00e9p m\u1ec1m. Th\u00e9p kh\u00f4ng g\u1ec9 th\u01b0\u1eddng l\u1edbn h\u01a1n m\u1ed9t ch\u00fat do \u0111\u1ed9 \u0111\u00e0n h\u1ed3i v\u00e0 \u0111\u1ed9 b\u1ec1n. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 n\u1ebfu b\u1ea1n mu\u1ed1n b\u00e1n k\u00ednh b\u00ean trong kho\u1ea3ng 0,125, b\u1ea1n s\u1ebd kh\u00f4ng l\u1ea5y m\u1ed9t khu\u00f4n V 1 inch v\u00e0 hy v\u1ecdng m\u0169i ch\u00e0y c\u1ee9u b\u1ea1n.<\/p>\n\n\n\n

Nh\u01b0ng \u0111\u00e2y l\u00e0 \u0111i\u1ec1u m\u1ecdi ng\u01b0\u1eddi hay qu\u00ean: chi\u1ec1u d\u00e0i g\u1edd.<\/p>\n\n\n\n

Chi\u1ec1u d\u00e0i g\u1edd t\u1ed1i thi\u1ec3u ph\u1ea3i l\u1edbn h\u01a1n kho\u1ea3ng m\u1ed9t n\u1eeda kh\u1ea9u \u0111\u1ed9 V, n\u1ebfu kh\u00f4ng chi ti\u1ebft s\u1ebd t\u1ee5t v\u00e0o khu\u00f4n tr\u01b0\u1edbc khi u\u1ed1n xong. \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00fd thuy\u1ebft\u2014m\u00e0 l\u00e0 chi ti\u1ebft h\u1ecfng v\u00e0 khu\u00f4n b\u1ecb m\u1ebb. N\u1ebfu b\u1ea1n c\u00f3 g\u1edd 15 mm v\u00e0 \u0111\u1eb7t l\u00ean khu\u00f4n V 24 mm, b\u1ea1n \u0111ang y\u00eau c\u1ea7u t\u1ea5m t\u1ef1 ch\u1ed1ng \u0111\u1ee1 tr\u00ean kh\u00f4ng.<\/p>\n\n\n\n

V\u00ec v\u1eady, vi\u1ec7c ch\u1ecdn khu\u00f4n l\u00e0 m\u1ed9t b\u00e0i ki\u1ec3m tra ba y\u1ebfu t\u1ed1:<\/p>\n\n\n\n

    \n
  • \u0110\u1ed9 D\u00e0y<\/li>\n\n\n\n
  • M\u1ee5c ti\u00eau b\u00ean trong b\u00e1n k\u00ednh<\/li>\n\n\n\n
  • Chi\u1ec1u d\u00e0i m\u00e9p b\u00edch t\u1ed1i thi\u1ec3u<\/li>\n<\/ul>\n\n\n\n

    B\u1ecf l\u1ee1 m\u1ed9t c\u00e1i, th\u00ec hai c\u00e1i c\u00f2n l\u1ea1i c\u0169ng kh\u00f4ng quan tr\u1ecdng.<\/p>\n\n\n\n

    Khi b\u1ea1n nh\u00ecn v\u00e0o ch\u00e0y hi\u1ec7n t\u1ea1i trong m\u00e1y, li\u1ec7u khe V c\u1ee7a n\u00f3 th\u1ef1c s\u1ef1 h\u1ed7 tr\u1ee3 m\u00e9p ng\u1eafn nh\u1ea5t c\u1ee7a b\u1ea1n, hay b\u1ea1n \u0111ang tin t\u01b0\u1edfng v\u00e0o b\u1ed9 g\u00e1 l\u00f9i \u0111\u1ec3 s\u1eeda m\u1ed9t v\u1ea5n \u0111\u1ec1 h\u00ecnh h\u1ecdc?<\/p>\n\n\n\n

    B\u01b0\u1edbc 3: X\u00e1c minh kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a ch\u00e0y v\u00e0 t\u00ednh to\u00e1n l\u1ef1c n\u00e9n c\u1ea7n thi\u1ebft tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u chu tr\u00ecnh<\/h3>\n\n\n\n

    B\u00e2y gi\u1edd\u2014v\u00e0 ch\u1ec9 b\u00e2y gi\u1edd\u2014b\u1ea1n m\u1edbi ch\u1ecdn ch\u00e0y.<\/p>\n\n\n\n

    G\u00f3c ch\u00e0y: n\u00f3 ph\u1ea3i \u0111\u1ee7 nh\u1ecdn \u0111\u1ec3 cho ph\u00e9p u\u1ed1n v\u01b0\u1ee3t m\u1ee9c m\u00e0 kh\u00f4ng \u0111\u1ec3 vai ch\u00e0y va v\u00e0o chi ti\u1ebft \u1edf \u0111\u1ed9 s\u00e2u t\u1ed1i \u0111a. N\u1ebfu b\u1ea1n \u0111ang u\u1ed1n trong kh\u00f4ng kh\u00ed \u0111\u1ebfn 90 \u0111\u1ed9, ch\u00e0y 88 \u0111\u1ed9 s\u1ebd cho b\u1ea1n kho\u1ea3ng th\u1edf \u0111\u1ec3 b\u00f9 \u0111\u1ed9 h\u1ed3i \u0111\u00e0n. Ch\u00e0y 90 \u0111\u1ed9 trong v\u1eadt li\u1ec7u \u0111\u00e0n h\u1ed3i c\u00f3 th\u1ec3 kh\u00f3a b\u1ea1n l\u1ea1i tr\u01b0\u1edbc khi \u0111\u1ea1t \u0111\u1ed9 s\u00e2u.<\/p>\n\n\n\n

    B\u00e1n k\u00ednh m\u0169i ch\u00e0y: trong u\u1ed1n kh\u00f4ng kh\u00ed, n\u00f3 th\u01b0\u1eddng n\u00ean b\u1eb1ng ho\u1eb7c nh\u1ecf h\u01a1n b\u00e1n k\u00ednh m\u00e0 khu\u00f4n s\u1ebd t\u1ea1o ra m\u1ed9t c\u00e1ch t\u1ef1 nhi\u00ean. Nh\u1ecf h\u01a1n v\u1eabn \u1ed5n trong gi\u1edbi h\u1ea1n h\u1ee3p l\u00fd; t\u1ea5m kim lo\u1ea1i kh\u00f4ng bao gi\u1edd bao tr\u1ecdn m\u0169i ch\u00e0y trong u\u1ed1n kh\u00f4ng kh\u00ed. Nh\u01b0ng n\u1ebfu b\u1ea1n cho m\u1ed9t m\u0169i ch\u00e0y kh\u1ed5ng l\u1ed3 v\u00e0o thi\u1ebft l\u1eadp khu\u00f4n h\u1eb9p, b\u1ea1n \u0111ang h\u1ea1n ch\u1ebf \u0111\u1ed9 xuy\u00ean v\u00e0 l\u00e0m r\u1ed1i vi\u1ec7c ki\u1ec3m so\u00e1t g\u00f3c.<\/p>\n\n\n\n

    Nh\u01b0ng trong u\u1ed1n kh\u00f4ng ch\u1ea1m \u0111\u00e1y, t\u1ea5m v\u1eadt li\u1ec7u kh\u00f4ng bao gi\u1edd qu\u1ea5n ho\u00e0n to\u00e0n quanh \u0111\u1ea7u ch\u00e0y \u0111\u00f3.<\/p>\n\n\n\n

    N\u00f3 ti\u1ebfp x\u00fac g\u1ea7n trung t\u00e2m trong khi b\u00e1n k\u00ednh th\u1eadt \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh gi\u1eefa hai vai khu\u00f4n. M\u0169i ch\u00e0y ch\u1ee7 y\u1ebfu \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn v\u1ebft h\u1eb1n, gi\u1edbi h\u1ea1n b\u00e1n k\u00ednh t\u1ed1i thi\u1ec3u c\u00f3 th\u1ec3 \u0111\u1ea1t, v\u00e0 nguy c\u01a1 h\u1ecfng do u\u1ed1n g\u1ea5p\u2014ch\u1ee9 kh\u00f4ng ph\u1ea3i b\u00e1n k\u00ednh ch\u00ednh.<\/p>\n\n\n\n

    H\u00e3y th\u1eed nghi\u1ec7m \u0111i\u1ec1u n\u00e0y tr\u00ean ph\u1ebf li\u1ec7u tr\u01b0\u1edbc.<\/p>\n\n\n\n

    Tr\u01b0\u1edbc khi chu tr\u00ecnh, h\u00e3y t\u00ednh to\u00e1n l\u1ef1c n\u00e9n tr\u00ean m\u1ed7i foot d\u1ef1a tr\u00ean v\u1eadt li\u1ec7u, \u0111\u1ed9 d\u00e0y v\u00e0 khe V. Khe V h\u1eb9p \u0111\u1ed3ng ngh\u0129a l\u1ef1c n\u00e9n cao h\u01a1n. \u0110\u1ea3m b\u1ea3o c\u00f4ng su\u1ea5t phanh tr\u00ean m\u1ed7i foot c\u1ee7a b\u1ea1n v\u01b0\u1ee3t qu\u00e1 y\u00eau c\u1ea7u thi\u1ebft l\u1eadp. U\u1ed1n kh\u00f4ng kh\u00ed c\u00f3 th\u1ec3 ch\u1ec9 c\u1ea7n v\u00e0i t\u1ea5n m\u1ed7i inch \u0111\u1ed1i v\u1edbi th\u00e9p m\u1ec1m, nh\u01b0ng inox trong khe V h\u1eb9p t\u0103ng nhanh. V\u01b0\u1ee3t qu\u00e1 c\u00f4ng su\u1ea5t s\u1ebd l\u00e0m bi\u1ebfn d\u1ea1ng b\u00e0n v\u00e0 tr\u1ee5c, d\u1eabn \u0111\u1ebfn sai l\u1ec7ch g\u00f3c m\u00e0 kh\u00f4ng ph\u1ea7n m\u1ec1m n\u00e0o s\u1eeda n\u1ed5i.<\/p>\n\n\n\n

    B\u1ea1n c\u00f3 ki\u1ec3m tra l\u1ef1c n\u00e9n so v\u1edbi c\u00f4ng su\u1ea5t tr\u00ean m\u1ed7i foot c\u1ee7a m\u00e1y m\u1ed7i l\u1ea7n b\u1ea1n si\u1ebft h\u1eb9p khe V\u2014hay b\u1ea1n ch\u1ec9 ngh\u0129 \u201cch\u1eafc n\u00f3 ch\u1ecbu \u0111\u01b0\u1ee3c\u201d?<\/p>\n\n\n\n

    T\u1eeb \u201cT\u00f4i n\u00ean d\u00f9ng ch\u00e0y n\u00e0o?\u201d \u0111\u1ebfn \u201cT\u00f4i c\u1ea7n khe khu\u00f4n n\u00e0o?\u201d<\/h3>\n\n\n\n

    Hai ng\u01b0\u1eddi v\u1eadn h\u00e0nh b\u01b0\u1edbc v\u00e0o c\u00f9ng m\u1ed9t c\u00f4ng vi\u1ec7c.<\/p>\n\n\n\n

    M\u1ed9t ng\u01b0\u1eddi h\u1ecfi, \u201cCh\u00fang ta c\u00f3 ch\u00e0y n\u00e0o g\u1ea7n v\u1edbi b\u00e1n k\u00ednh \u0111\u00f3 kh\u00f4ng?\u201d<\/p>\n\n\n\n

    Ng\u01b0\u1eddi kia h\u1ecfi, \u201cKhe V n\u00e0o cho t\u00f4i b\u00e1n k\u00ednh m\u00e0 v\u1eadt li\u1ec7u n\u00e0y ch\u1ecbu \u0111\u01b0\u1ee3c?\u201d<\/p>\n\n\n\n

    M\u1ed9t ng\u01b0\u1eddi ngh\u0129 v\u1ec1 khu\u00f4n. Ng\u01b0\u1eddi kia ngh\u0129 v\u1ec1 h\u00ecnh h\u1ecdc.<\/p>\n\n\n\n

    N\u1ebfu b\u1ea1n suy ngh\u0129 nh\u01b0 m\u1ed9t ng\u01b0\u1eddi v\u1eadn h\u00e0nh ch\u1ea5n \u00e9p \u0111\u00e1y trong khi \u0111ang ch\u1ea5n gi\u00f3, b\u1ea1n \u0111ang gi\u1ea3i sai b\u00e0i to\u00e1n.<\/p>\n\n\n\n

    T\u01b0 duy l\u1ea5y khu\u00f4n tr\u01b0\u1edbc t\u1ea1o ra m\u1ed9t \u0111i\u1ec1u tinh t\u1ebf: n\u00f3 t\u00e1ch ki\u1ec3m so\u00e1t b\u00e1n k\u00ednh kh\u1ecfi ki\u1ec3m so\u00e1t g\u00f3c trong \u0111\u1ea7u b\u1ea1n. Khu\u00f4n ki\u1ec3m so\u00e1t b\u00e1n k\u00ednh th\u00f4ng qua \u0111\u1ed9 r\u1ed9ng khe. \u0110\u1ed9 s\u00e2u tr\u1ee5c ki\u1ec3m so\u00e1t g\u00f3c. Ch\u00e0y ph\u1ea3i tho\u00e1ng, ch\u1ecbu l\u1ef1c v\u00e0 truy\u1ec1n l\u1ef1c\u2014nh\u01b0ng n\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c quy\u1ebft \u0111\u1ecbnh b\u00e1n k\u00ednh tr\u1eeb khi b\u1ea1n b\u1eaft \u0111\u1ea7u \u00e9p s\u00e1t \u0111\u00e1y.<\/p>\n\n\n\n

    S\u1ef1 thay \u0111\u1ed5i n\u00e0y kh\u00f4ng r\u00f5 r\u00e0ng v\u00ec ch\u00e0y l\u00e0 th\u1ee9 b\u1ea1n th\u1ea5y \u0111ang di chuy\u1ec3n. N\u00f3 khi\u1ebfn b\u1ea1n c\u1ea3m th\u1ea5y nh\u01b0 nh\u00e2n v\u1eadt ch\u00ednh c\u1ee7a c\u00e2u chuy\u1ec7n. Nh\u01b0ng kh\u00f4ng ph\u1ea3i v\u1eady.<\/p>\n\n\n\n

    Khu\u00f4n m\u1edbi l\u00e0 nh\u00e2n v\u1eadt ch\u00ednh.<\/p>\n\n\n\n

    V\u00ec v\u1eady, l\u1ea7n sau khi b\u1ea1n \u0111\u1ea9y xe \u0111\u1ebfn m\u00e1y u\u1ed1n, \u0111\u1eebng nh\u00ecn l\u00ean gi\u00e1 ch\u00e0y tr\u01b0\u1edbc. H\u00e3y nh\u00ecn xu\u1ed1ng k\u1ec7 khu\u00f4n v\u00e0 t\u1ef1 h\u1ecfi m\u1ed9t c\u00e2u h\u1ecfi kh\u00f3 h\u01a1n:<\/p>\n\n\n\n

    Khe V n\u00e0o th\u1ef1c s\u1ef1 ph\u00f9 h\u1ee3p cho c\u00f4ng vi\u1ec7c n\u00e0y\u2014v\u00e0 n\u00f3 c\u00f3 \u0111ang n\u1eb1m trong m\u00e1y c\u1ee7a b\u1ea1n l\u00fac n\u00e0y kh\u00f4ng?<\/p>","protected":false},"excerpt":{"rendered":"

    Hai ng\u01b0\u1eddi v\u1eadn h\u00e0nh. C\u00f9ng lo\u1ea1i th\u00e9p kh\u00f4ng g\u1ec9 0.125. C\u00f9ng \u0111\u1ea7u \u0111\u1ed9t 0.118. M\u1ed9t ng\u01b0\u1eddi t\u1ea1o \u0111\u01b0\u1ee3c b\u00e1n k\u00ednh trong 0.140 m\u1ecbn m\u00e0ng. Ng\u01b0\u1eddi kia l\u00e0m n\u1ee9t m\u1eb7t ngo\u00e0i v\u00e0 \u0111o \u0111\u01b0\u1ee3c 0.180. C\u1ea3 hai \u0111\u1ec1u ch\u1ec9 v\u00e0o c\u00e1i \u0111\u1ed9t. T\u00f4i \u0111\u00e3 \u0111\u1ee9ng gi\u1eefa hai m\u00e1y \u0111\u00f3 nhi\u1ec1u l\u1ea7n h\u01a1n m\u1ee9c t\u00f4i mu\u1ed1n th\u1eeba nh\u1eadn, v\u00e0 th\u00e9p th\u00ec kh\u00f4ng bao gi\u1edd n\u00f3i d\u1ed1i. N\u1ebfu c\u00fa \u0111\u1ed9t l\u00e0 khu\u00f4n, th\u00ec nh\u1eefng [\u2026]<\/p>","protected":false},"author":3,"featured_media":1055,"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-1051","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\/1051","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=1051"}],"version-history":[{"count":2,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/1051\/revisions"}],"predecessor-version":[{"id":1062,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/posts\/1051\/revisions\/1062"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/media\/1055"}],"wp:attachment":[{"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/media?parent=1051"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/categories?post=1051"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn-hawe.com\/vi\/wp-json\/wp\/v2\/tags?post=1051"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}