{"id":3307,"date":"2019-01-21T06:15:25","date_gmt":"2019-01-21T06:15:25","guid":{"rendered":"https:\/\/www.mcctcarbide.com\/?p=3307"},"modified":"2020-05-06T07:06:35","modified_gmt":"2020-05-06T07:06:35","slug":"the-collection-of-cnc-machining-programming-experience","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/kinh-nghiem-lap-trinh-gia-cong-cnc\/","title":{"rendered":"B\u1ed9 s\u01b0u t\u1eadp kinh nghi\u1ec7m l\u1eadp tr\u00ecnh gia c\u00f4ng CNC"},"content":{"rendered":"

1. T\u1ed1c \u0111\u1ed9 c\u1ee7a con dao th\u00e9p tr\u1eafng kh\u00f4ng th\u1ec3 qu\u00e1 nhanh.<\/p>

2. C\u00f4ng vi\u1ec7c b\u1eb1ng \u0111\u1ed3ng d\u00e0y h\u01a1n v\u00e0 \u00edt dao th\u00e9p tr\u1eafng h\u01a1n, v\u00e0 s\u1eed d\u1ee5ng nhi\u1ec1u h\u01a1n dao bay ho\u1eb7c dao h\u1ee3p kim.<\/p>

3. Khi ph\u00f4i qu\u00e1 cao, c\u1ea7n x\u1ebfp l\u1edbp v\u1edbi c\u00e1c chi\u1ec1u d\u00e0i dao kh\u00e1c nhau \u0111\u1ec3 m\u1edf.<\/p>

4. Sau khi g\u1ed3 gh\u1ec1 b\u1eb1ng m\u1ed9t con dao l\u1edbn, \u00e1p d\u1ee5ng m\u1ed9t con dao nh\u1ecf \u0111\u1ec3 lo\u1ea1i b\u1ecf v\u1eadt li\u1ec7u c\u00f2n l\u1ea1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng s\u1ed1 l\u01b0\u1ee3ng c\u00f2n l\u1ea1i l\u00e0 nh\u01b0 nhau.<\/p>

5. \u1ee8ng d\u1ee5ng m\u1eb7t ph\u1eb3ng c\u1ee7a dao \u0111\u00e1y ph\u1eb3ng, \u00edt dao bi \u0111\u1ec3 gi\u1ea3m th\u1eddi gian x\u1eed l\u00fd.<\/p>

\"\"<\/figure>

6. Khi \u0111\u1ed3ng \u0111ang x\u00f3a g\u00f3c, tr\u01b0\u1edbc ti\u00ean h\u00e3y ki\u1ec3m tra k\u00edch th\u01b0\u1edbc R tr\u00ean g\u00f3c v\u00e0 sau \u0111\u00f3 x\u00e1c \u0111\u1ecbnh con dao bi l\u1edbn nh\u01b0 th\u1ebf n\u00e0o.<\/p>

7. B\u1ed1n g\u00f3c c\u1ee7a m\u1eb7t ph\u1eb3ng tr\u01b0\u1eddng h\u1ecdc ph\u1ea3i b\u1eb1ng ph\u1eb3ng.<\/p>

8. Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed9 d\u1ed1c l\u00e0 m\u1ed9t s\u1ed1 nguy\u00ean, \u00e1p d\u1ee5ng m\u1ed9t con dao cao \u0111\u1ed9, ch\u1eb3ng h\u1ea1n nh\u01b0 v\u1ecb tr\u00ed \u1ed1ng.<\/p>

9. Tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n m\u1ed7i quy tr\u00ecnh, h\u00e3y ngh\u0129 v\u1ec1 s\u1ed1 ti\u1ec1n c\u00f2n l\u1ea1i sau khi quy tr\u00ecnh tr\u01b0\u1edbc \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ec3 tr\u00e1nh dao tr\u1ed1ng ho\u1eb7c gia c\u00f4ng qu\u00e1 m\u1ee9c.<\/p>

10. C\u1ed1 g\u1eafng \u0111i m\u1ed9t con \u0111\u01b0\u1eddng \u0111\u01a1n gi\u1ea3n, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u00ecnh d\u1ea1ng, r\u00e3nh, m\u1ed9t b\u00ean, \u00edt \u0111i b\u1ed9 v\u00e0 nh\u01b0 v\u1eady.<\/p>

11. Khi \u0111i \u0111\u1ebfn WCUT, n\u1ebfu b\u1ea1n c\u00f3 th\u1ec3 thi FINISH, \u0111\u1eebng l\u1ea5y ROUGH.<\/p>

12. Khi h\u00ecnh d\u1ea1ng l\u00e0 \u00e1nh s\u00e1ng, \u0111\u1ea7u ti\u00ean l\u00e0 \u00e1nh s\u00e1ng th\u00f4, sau \u0111\u00f3 l\u00e0 \u00e1nh s\u00e1ng t\u1ed1t, khi ph\u00f4i qu\u00e1 cao, c\u1ea1nh \u00e1nh s\u00e1ng \u0111\u1ea7u ti\u00ean, sau \u0111\u00f3 l\u00e0 \u00e1nh s\u00e1ng d\u01b0\u1edbi c\u00f9ng.<\/p>

13. \u0110\u1eb7t dung sai h\u1ee3p l\u00fd \u0111\u1ec3 c\u00e2n b\u1eb1ng \u0111\u1ed9 ch\u00ednh x\u00e1c gia c\u00f4ng v\u00e0 th\u1eddi gian t\u00ednh to\u00e1n c\u1ee7a m\u00e1y t\u00ednh. Khi gia c\u00f4ng th\u00f4, dung sai \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh 1\/5 c\u1ee7a l\u1ec1 v\u00e0 khi s\u1eed d\u1ee5ng dao, dung sai \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh 0,01.<\/p>

\"\"<\/figure>

14. L\u00e0m th\u00eam m\u1ed9t ch\u00fat v\u00e0 gi\u1ea3m th\u1eddi gian tr\u1ed1ng. L\u00e0m th\u00eam m\u1ed9t ch\u00fat suy ngh\u0129 v\u00e0 gi\u1ea3m nguy c\u01a1 l\u1ed7i. L\u00e0m th\u00eam m\u1ed9t ch\u00fat b\u1ec1 m\u1eb7t ph\u1ee5 tr\u1ee3 \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd.<\/p>

15. Thi\u1ebft l\u1eadp tinh th\u1ea7n tr\u00e1ch nhi\u1ec7m v\u00e0 ki\u1ec3m tra c\u1ea9n th\u1eadn t\u1eebng th\u00f4ng s\u1ed1 \u0111\u1ec3 tr\u00e1nh l\u00e0m l\u1ea1i.<\/p>

16. Si\u00eang n\u0103ng trong h\u1ecdc t\u1eadp, suy ngh\u0129 t\u1ed1t v\u00e0 c\u1ea3i ti\u1ebfn li\u00ean t\u1ee5c. Phay dao kh\u00f4ng ph\u1eb3ng, dao \u0111a n\u0103ng, dao \u00edt \u0111\u1ea7u, \u0111\u1eebng ng\u1ea1i k\u1ebft n\u1ed1i dao; dao nh\u1ecf g\u00f3c r\u00f5 r\u00e0ng, tinh ch\u1ebf dao l\u1edbn; \u0110\u1eebng s\u1ee3 t\u1ea1o n\u00ean b\u1ec1 m\u1eb7t, b\u1ec1 m\u1eb7t b\u1ed5 sung th\u00edch h\u1ee3p c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd v\u00e0 l\u00e0m \u0111\u1eb9p hi\u1ec7u qu\u1ea3 x\u1eed l\u00fd.<\/p>

17. \u0110\u1ed9 c\u1ee9ng c\u1ee7a v\u1eadt li\u1ec7u tr\u1ed1ng cao:<\/p>

T\u1ed1t cho phay c\u1eaft l\u00ean \u0110\u1ed9 c\u1ee9ng th\u1ea5p c\u1ee7a v\u1eadt li\u1ec7u tr\u1ed1ng: t\u1ed1t h\u01a1n cho c\u1eaft xu\u1ed1ng. \u0110\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a m\u00e1y t\u1ed1t, \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 ho\u00e0n thi\u1ec7n: ph\u00f9 h\u1ee3p h\u01a1n cho phay c\u1eaft xu\u1ed1ng v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. N\u00ean s\u1eed d\u1ee5ng phay c\u1eaft xu\u1ed1ng \u0111\u1ec3 ho\u00e0n thi\u1ec7n \u1edf g\u00f3c b\u00ean trong c\u1ee7a b\u1ed9 ph\u1eadn. Roughing: phay t\u1ed1t h\u01a1n c\u1eaft, ho\u00e0n thi\u1ec7n: d\u1ee5ng c\u1ee5 t\u1ed1t h\u01a1n, \u0111\u1ed9 b\u1ec1n t\u1ed1t v\u00e0 \u0111\u1ed9 c\u1ee9ng th\u1ea5p: ph\u00f9 h\u1ee3p h\u01a1n cho gia c\u00f4ng th\u00f4 (s\u1ed1 l\u01b0\u1ee3ng c\u1eaft l\u1edbn). V\u1eadt li\u1ec7u d\u1ee5ng c\u1ee5 c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9m v\u00e0 \u0111\u1ed9 c\u1ee9ng cao: ph\u00f9 h\u1ee3p h\u01a1n \u0111\u1ec3 ho\u00e0n thi\u1ec7n (x\u1eed l\u00fd s\u1ed1 l\u01b0\u1ee3ng c\u1eaft nh\u1ecf)).<\/p>

18. Ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd \u0111\u1ed3ng v\u00e0 bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba:<\/p>

Tr\u01b0\u1edbc khi vi\u1ebft \u0111\u01b0\u1eddng d\u1eabn dao, sau khi h\u00ecnh \u1ea3nh \u00e2m thanh n\u1ed5i k\u1ebft th\u00fac, ph\u1ea7n trung t\u00e2m c\u1ee7a h\u00ecnh ph\u1ea3i \u0111\u01b0\u1ee3c di chuy\u1ec3n \u0111\u1ebfn g\u1ed1c t\u1ecda \u0111\u1ed9 v\u00e0 \u0111i\u1ec3m cao nh\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ebfn Z = 0 \u0111\u1ec3 x\u1eed l\u00fd v\u00e0 v\u1ecb tr\u00ed tia l\u1eeda chung b\u1eb1ng \u0111\u1ed3ng c\u00f3 th\u1ec3 x\u1eed l\u00fd d\u1ef1 tr\u1eef \u00e2m. Tr\u01b0\u1edbc khi x\u1eed l\u00fd, ki\u1ec3m tra xem h\u01b0\u1edbng k\u1eb9p c\u1ee7a ph\u00f4i c\u00f3 gi\u1ed1ng v\u1edbi h\u01b0\u1edbng c\u1ee7a \u0111\u1ed3 h\u1ecda trong m\u00e1y t\u00ednh kh\u00f4ng. Li\u1ec7u v\u1ecb tr\u00ed trong khu\u00f4n c\u00f3 ch\u00ednh x\u00e1c hay kh\u00f4ng, li\u1ec7u v\u1eadt c\u1ed1 c\u00f3 c\u1ea3n tr\u1edf qu\u00e1 tr\u00ecnh x\u1eed l\u00fd hay kh\u00f4ng v\u00e0 li\u1ec7u h\u01b0\u1edbng c\u1ee7a khu\u00f4n tr\u01b0\u1edbc v\u00e0 sau c\u00f3 kh\u1edbp hay kh\u00f4ng. Ngo\u00e0i ra, h\u00e3y ki\u1ec3m tra xem c\u00e1c c\u00f4ng c\u1ee5 b\u1ea1n \u0111ang s\u1eed d\u1ee5ng \u0111\u00e3 ho\u00e0n t\u1ea5t ch\u01b0a, \u0111i\u1ec3m chu\u1ea9n trong b\u1ea3ng hi\u1ec7u chu\u1ea9n, v.v. C\u00e1c v\u1ea5n \u0111\u1ec1 c\u1ea7n ch\u00fa \u00fd trong ch\u1ebf bi\u1ebfn \u0111\u1ed3ng: Vi\u1ec7c x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed tia l\u1eeda, d\u1ef1 tr\u1eef chung c\u1ee7a tr\u1ebb (t\u1ee9c l\u00e0 Jinggong) l\u00e0 0,05 ~ 0,15, c\u00f4ng khai th\u00f4 l\u00e0 0,2 ~ 0,5, v\u1ecb tr\u00ed tia l\u1eeda c\u1ee5 th\u1ec3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi ch\u1ee7 khu\u00f4n. Kh\u00f4ng c\u00f3 g\u00f3c ch\u1ebft trong c\u1ed9ng \u0111\u1ed3ng \u0111\u1ed3ng, v\u00e0 c\u1ea7n ph\u1ea3i th\u00e1o d\u1ee1 th\u00eam m\u1ed9t l\u1ea7n n\u1eefa. \u0110\u01b0\u1eddng gia c\u00f4ng c\u1ee7a \u0111\u1ed3ng gia c\u00f4ng n\u00f3i chung l\u00e0: dao l\u1edbn (dao d\u1eb9t) m\u1edf d\u00e0y - dao nh\u1ecf (dao d\u1eb9t) g\u00f3c r\u00f5 r\u00e0ng Dao quang v\u1edbi b\u1ec1 m\u1eb7t dao c\u1eaft b\u00f3ng. M\u1edf gi\u00e1o vi\u00ean t\u1ed5ng qu\u00e1t b\u1eb1ng dao ph\u1eb3ng kh\u00f4ng d\u00f9ng dao bi, d\u00f9ng dao m\u1edf dao d\u00e0y, sau \u0111\u00f3 \u0111\u1ecbnh h\u00ecnh \u00e1nh s\u00e1ng \u0111\u1ebfn s\u1ed1, sau \u0111\u00f3 d\u00f9ng b\u1ec1 m\u1eb7t dao b\u00f3ng l\u1edbn, r\u1ed3i d\u00f9ng b\u1ec1 m\u1eb7t dao b\u00f3ng nh\u1ecf \u0111\u1ec3 c\u1ee9u r\u1eafc r\u1ed1i, \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 g\u00f3c nh\u1ecf Vi\u1ec7c s\u1eed d\u1ee5ng dao \u0111\u1ec3 x\u1eed l\u00fd con dao l\u1edbn kh\u00f4ng th\u1ec3 v\u01b0\u1ee3t qua g\u00f3c ch\u1ebft c\u00f3 th\u1ec3 h\u1ea1n ch\u1ebf ph\u1ea1m vi dao, \u0111\u1ec3 kh\u00f4ng ph\u00e1t qu\u00e1 nhi\u1ec1u dao r\u1ed7ng. Tonggong, \u0111\u1eb7c bi\u1ec7t l\u00e0 nam thanh ni\u00ean, c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c t\u01b0\u01a1ng \u0111\u1ed1i cao. Dung sai th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ecdn t\u1eeb 0,005 \u0111\u1ebfn 0,02 v\u00e0 b\u01b0\u1edbc l\u00e0 0,05 \u0111\u1ebfn 0,3. Khi \u0111\u1ed3ng \u0111\u01b0\u1ee3c m\u1edf, c\u1ea7n ph\u1ea3i gi\u1eef v\u1ecb tr\u00ed c\u1ee7a qu\u1ea3 b\u00f3ng \u1edf v\u1ecb tr\u00ed dao, ngh\u0129a l\u00e0 m\u1edf h\u1ed3 s\u01a1 \u0111\u1ed3ng \u0111\u1ebfn b\u00e1n k\u00ednh dao d\u00e0y. Tonggong c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u1edf v\u1ecb tr\u00ed ch\u00ednh gi\u1eefa, ti\u00eau chu\u1ea9n hi\u1ec7u chu\u1ea9n v\u00e0 c\u00f4ng vi\u1ec7c \u0111\u1ed3ng n\u00ean \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa trong qu\u00e1 tr\u00ecnh ph\u00f3ng tia l\u1eeda. C\u00f4ng vi\u1ec7c \u0111\u1ed3ng \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi ba m\u1eb7t (l\u00ean, xu\u1ed1ng, tr\u00e1i v\u00e0 ph\u1ea3i) ph\u1ea3i c\u00f3 ba m\u1eb7t tham chi\u1ebfu. V\u1eadt li\u1ec7u \u0111\u1ed3ng l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u d\u1ec5 ch\u1ebf bi\u1ebfn. T\u1ed1c \u0111\u1ed9 c\u1ee7a m\u00e1y c\u1eaft c\u00f3 th\u1ec3 nhanh h\u01a1n. Khi \u0111\u1ed9 d\u00e0y th\u00f4, dung sai gia c\u00f4ng l\u00e0 0,2 ~ 0,5, t\u00f9y thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc c\u1ee7a ph\u00f4i. Ph\u1ee5 c\u1ea5p gia c\u00f4ng l\u1edbn. ,N\u00e2ng cao hi\u1ec7u qu\u1ea3. L\u01b0u \u00fd: Gi\u00e1 \u0111\u1ee1 l\u00e0 th\u00f4ng s\u1ed1 c\u1ee7a dao th\u00e9p t\u1ed1c \u0111\u1ed9 cao khi v\u1eadt li\u1ec7u th\u00e9p \u0111\u01b0\u1ee3c l\u00e0m d\u00e0y. T\u1ed1c \u0111\u1ed9 c\u1eaft \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn h\u00ecnh d\u1ea1ng \u00e1nh s\u00e1ng F = 300 ~ 500 v\u00e0 dao \u00e1nh s\u00e1ng v\u1eadt li\u1ec7u th\u00e9p F l\u00e0 50 ~ 200.<\/p>

19. V\u1ea5n \u0111\u1ec1 m\u1edf khu\u00f4n tr\u01b0\u1edbc:<\/p>

\u0110\u1ea7u ti\u00ean, h\u00ecnh \u0111\u1ed3ng \u0111\u01b0\u1ee3c xoay 180o \u1edf ch\u1ebf \u0111\u1ed9 xem tr\u01b0\u1edbc ho\u1eb7c ch\u1ebf \u0111\u1ed9 xem b\u00ean \u0111\u1ec3 tr\u1edf th\u00e0nh m\u1eabu ph\u00eda tr\u01b0\u1edbc. T\u1ea5t nhi\u00ean, v\u1ecb tr\u00ed g\u1ed1i v\u00e0 b\u1ec1 m\u1eb7t PL \u0111\u01b0\u1ee3c th\u00eam v\u00e0o. Tr\u01b0\u1eddng h\u1ee3p c\u01a1 th\u1ec3 ban \u0111\u1ea7u \u0111\u01b0\u1ee3c \u0111\u1ec3 l\u1ea1i trong khu\u00f4n, kh\u00f4ng s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p g\u01b0\u01a1ng \u0111\u1ec3 \u0111\u1ed3ng. B\u1ea3n v\u1ebd tr\u1edf th\u00e0nh m\u1ed9t m\u1eabu ph\u00eda tr\u01b0\u1edbc, \u0111\u00f4i khi n\u00f3 sai (khi h\u00ecnh \u0111\u1ed3ng kh\u00f4ng \u0111\u1ed1i x\u1ee9ng theo h\u01b0\u1edbng X v\u00e0 h\u01b0\u1edbng Y). C\u00f3 hai kh\u00f3 kh\u0103n trong vi\u1ec7c x\u1eed l\u00fd khu\u00f4n tr\u01b0\u1edbc: v\u1eadt li\u1ec7u t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee9ng; khu\u00f4n tr\u01b0\u1edbc kh\u00f4ng th\u1ec3 d\u1ec5 d\u00e0ng h\u00e0n, v\u00e0 n\u00f3 sai. Khi khu\u00f4n tr\u01b0\u1edbc th\u00f4, nguy\u00ean t\u1eafc s\u1eed d\u1ee5ng dao t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00f4ng vi\u1ec7c c\u1ee7a \u0111\u1ed3ng. Con dao l\u1edbn th\u00f4 r\u00e1p \u2192 con dao nh\u1ecf d\u00e0y \u2192 con dao nh\u1eb9 dao l\u1edbn \u2192 con dao nh\u1ecf \u00e1nh s\u00e1ng dao, nh\u01b0ng khu\u00f4n tr\u01b0\u1edbc n\u00ean d\u00f9ng dao l\u1edbn nh\u1ea5t c\u00f3 th\u1ec3, dao kh\u00f4ng qu\u00e1 nh\u1ecf, d\u1ec5 qu\u1ef3, th\u00f4 l\u00e0 th\u01b0\u1eddng l\u00e0 \u0111\u1ea7u ti\u00ean S\u1eed d\u1ee5ng c\u00e1n dao () \u0111\u1ec3 m\u1edf d\u00e0y v\u00e0 s\u1eed d\u1ee5ng dao m\u0169i tr\u00f2n c\u00e0ng nhi\u1ec1u c\u00e0ng t\u1ed1t. B\u1edfi v\u00ec con dao \u0111\u1ee7 l\u1edbn v\u00e0 m\u1ea1nh m\u1ebd, khi khu\u00f4n tr\u01b0\u1edbc \u0111\u01b0\u1ee3c x\u1eed l\u00fd, th\u01b0\u1eddng c\u00f3 v\u1ea5n \u0111\u1ec1. Khi dao nh\u1eb9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, b\u1ec1 m\u1eb7t chia tay \u0111\u01b0\u1ee3c ch\u1ea1m v\u00e0o. M\u00e1y n\u00ean \u0111\u01b0\u1ee3c \u0111\u00e1nh s\u1ed1 g\u1ea7n \u0111\u00fang v\u00e0 khoang ph\u1ea3i c\u00f3 dung sai gia c\u00f4ng l\u00e0 0,2 ~ 0,5 (b\u1ecf n\u00f3 ra \u0111\u1ec3 \u0111\u00e1nh l\u1eeda). \u0110i\u1ec1u n\u00e0y l\u00e0 \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh b\u1ec1 m\u1eb7t c\u1ee7a khoang khu\u00f4n theo h\u01b0\u1edbng d\u01b0\u01a1ng t\u1eeb 0,2 \u0111\u1ebfn 0,5 v\u00e0 \u0111\u1eb7t m\u1ee9c cho ph\u00e9p gia c\u00f4ng th\u00e0nh 0 khi vi\u1ebft \u0111\u01b0\u1eddng d\u1eabn dao. Khi khu\u00f4n tr\u01b0\u1edbc th\u00f4 ho\u1eb7c nh\u1eb9, ph\u1ea1m vi c\u1ee7a dao c\u1eaft th\u01b0\u1eddng b\u1ecb gi\u1edbi h\u1ea1n. H\u00e3y nh\u1edb r\u1eb1ng ph\u1ea1m vi b\u1ea1n \u0111\u1eb7t l\u00e0 ph\u1ea1m vi c\u1ee7a trung t\u00e2m c\u00f4ng c\u1ee5, kh\u00f4ng ph\u1ea3i ph\u1ea1m vi c\u1ee7a ranh gi\u1edbi dao, kh\u00f4ng ph\u1ea3i l\u00e0 ph\u1ea1m vi m\u00e0 dao \u0111\u01b0\u1ee3c gia c\u00f4ng, nh\u01b0ng b\u00e1n k\u00ednh dao c\u00e0ng l\u1edbn. Ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 c\u1eaft khu\u00f4n tr\u01b0\u1edbc l\u00e0 r\u00e3nh cong v\u00e0 dao \u00e1nh s\u00e1ng song song. Khi khu\u00f4n tr\u01b0\u1edbc \u0111\u01b0\u1ee3c x\u1eed l\u00fd, b\u1ec1 m\u1eb7t chia th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ebfn m\u1ed9t s\u1ed1 g\u1ea7n \u0111\u00fang, v\u00e0 b\u1ec1 m\u1eb7t va ch\u1ea1m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ec3 l\u1ea1i d\u01b0 th\u1eeba 0,1 \u0111\u1ec3 chu\u1ea9n b\u1ecb khu\u00f4n.<\/p>

20. C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p ph\u1ea3i sau khi x\u1eed l\u00fd:<\/p>

C\u00f3 hai lo\u1ea1i khu\u00f4n sau: nguy\u00ean b\u1ea3n ho\u1eb7c d\u00e1t. Khu\u00f4n ph\u00eda sau gi\u1ed1ng nh\u01b0 khu\u00f4n tr\u01b0\u1edbc. C\u00e1c v\u1eadt li\u1ec7u l\u00e0 c\u1ee9ng. N\u00f3 n\u00ean \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng dao. Dao c\u1eaft ph\u1ed5 bi\u1ebfn l\u00e0 b\u1ec1 m\u1eb7t c\u1ee7a r\u00e3nh cong. Dao phay song song l\u00e0 nguy\u00ean t\u1eafc ch\u1ecdn dao. Dao l\u1edbn m\u1edf d\u00e0y \u2192 dao nh\u1ecf m\u1edf d\u00e0y \u2192 dao l\u1edbn dao nh\u1eb9 \u2192 dao nh\u1ecf dao nh\u1eb9. Ch\u1ebf \u0111\u1ed9 tr\u1edf l\u1ea1i th\u01b0\u1eddng l\u00e0 m\u1ed9t con s\u1ed1 b\u1eb1ng \u0111\u1ed3ng \u0111\u1ec3 gi\u1ea3m m\u1ee9c \u0111\u1ed9 v\u1eadt li\u1ec7u c\u1ed9ng v\u1edbi b\u1ec1 m\u1eb7t PL, v\u1ecb tr\u00ed g\u1ed1i v\u00e0 c\u01a1 th\u1ec3 ban \u0111\u1ea7u c\u00f2n l\u1ea1i. N\u1ebfu m\u1ee9c v\u1eadt li\u1ec7u t\u01b0\u01a1ng \u0111\u1ed1i \u0111\u1ed3ng \u0111\u1ec1u, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ec3 m\u1ee9c v\u1eadt li\u1ec7u tr\u1ef1c ti\u1ebfp trong th\u00f4ng tin x\u1eed l\u00fd, nh\u01b0ng PL (b\u1ec1 m\u1eb7t ph\u00e2n chia), v\u1ecb tr\u00ed g\u1ed1i, b\u1ec1 m\u1eb7t m\u1eb7c kh\u00f4ng th\u1ec3 gi\u1ea3m. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, tr\u01b0\u1edbc ti\u00ean b\u1ea1n c\u00f3 th\u1ec3 s\u1eeda c\u00e1c khu\u00f4n m\u1eb7t n\u00e0y theo h\u01b0\u1edbng t\u00edch c\u1ef1c ho\u1eb7c v\u1ebd c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng. M\u1ed9t v\u1ea5n \u0111\u1ec1 m\u00e0 c\u01a1 th\u1ec3 ban \u0111\u1ea7u th\u01b0\u1eddng g\u1eb7p ph\u1ea3i l\u00e0 m\u00e1y c\u1eaft b\u00f3ng kh\u00f4ng \u0111\u1ee7 r\u00f5 r\u00e0ng. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, b\u1ec1 m\u1eb7t nghi\u00eang s\u1eafc n\u00e9t c\u1ee7a b\u1ec1 m\u1eb7t cong c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd g\u00f3c r\u00f5 r\u00e0ng. V\u00ed d\u1ee5, khu\u00f4n sau \u0111\u01b0\u1ee3c chia th\u00e0nh h\u1ed9p T\u00e2y T\u1ea1ng v\u00e0 l\u00f5i, v\u00e0 b\u1ed9 s\u01b0u t\u1eadp n\u1eb1m trong th\u01b0 vi\u1ec7n. Khi b\u1ea1n ch\u00fa \u00fd, b\u1ea1n n\u00ean ch\u00fa \u00fd h\u01a1n \u0111\u1ebfn con dao tr\u1ed1ng. N\u1ebfu kh\u00f4ng, khung s\u1ebd c\u00f3 \u0111\u1ed9 d\u1ed1c. M\u1eb7t tr\u00ean ch\u00ednh x\u00e1c, m\u1eb7t d\u01b0\u1edbi nh\u1ecf v\u00e0 kh\u00f3 kh\u1edbp v\u1edbi khu\u00f4n. \u0110\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi khung s\u00e2u h\u01a1n, b\u1ea1n ph\u1ea3i ch\u00fa \u00fd \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 n\u00e0y. Con dao khung nh\u1eb9 c\u0169ng ph\u1ea3i m\u1edbi. Ok, v\u00e0 ch\u1ecdn m\u1ed9t con dao l\u1edbn h\u01a1n. N\u1ebfu l\u00f5i qu\u00e1 cao, b\u1ea1n c\u00f3 th\u1ec3 chuy\u1ec3n n\u00f3 sang khung x\u1eed l\u00fd, sau \u0111\u00f3 l\u1eafp r\u00e1p n\u00f3 v\u00e0o khung, sau \u0111\u00f3 \u0111\u1ecbnh h\u00ecnh h\u00ecnh d\u1ea1ng, \u0111\u00f4i khi b\u1eb1ng m\u1ed9t nh\u00e1nh. C\u1ea9n th\u1eadn kh\u00f4ng b\u1ea3o v\u1ec7 b\u01b0\u1edbc nh\u00e1nh khi c\u1eaft h\u00ecnh d\u1ea1ng c\u1ee7a qu\u1ea3 b\u00f3ng. \u0110\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho ch\u1ebf \u0111\u1ed9 kh\u1edbp, k\u00edch th\u01b0\u1edbc khung c\u00f3 th\u1ec3 nh\u1ecf h\u01a1n k\u00edch th\u01b0\u1edbc l\u00f5i -0,02 \/ s. Dung sai v\u00e0 k\u00edch th\u01b0\u1edbc b\u01b0\u1edbc c\u1ee7a dao \u00e1nh s\u00e1ng l\u00f5i c\u00f3 th\u1ec3 l\u1edbn h\u01a1n m\u1ed9t ch\u00fat, v\u00e0 dung sai l\u00e0 0,01 ~ 0,03 v\u00e0 th\u1ee9c \u0103n l\u00e0 0,2 ~ 0,5.<\/p>

21. V\u1ea5n \u0111\u1ec1 trong ch\u1ebf bi\u1ebfn \u0111\u1ed3ng l\u1ecfng l\u1ebbo:<\/p>

\u0110\u00f4i khi vi\u1ec7c x\u1eed l\u00fd \u0111\u1ed3ng t\u1ed5ng th\u1ec3 l\u00e0 kh\u00f3 kh\u0103n, kh\u00f4ng c\u00f3 g\u00f3c ch\u1ebft n\u00e0o kh\u00f4ng th\u1ec3 x\u1eed l\u00fd ho\u1eb7c kh\u00f4ng d\u1ec5 x\u1eed l\u00fd. N\u1ebfu c\u00f4ng c\u1ee5 c\u1ea7n thi\u1ebft qu\u00e1 d\u00e0i ho\u1eb7c qu\u00e1 nh\u1ecf, b\u1ea1n c\u00f3 th\u1ec3 xem x\u00e9t chia th\u00eam m\u1ed9t \u0111\u1ed3ng, \u0111\u00f4i khi \u0111\u1ecba ph\u01b0\u01a1ng c\u1ea7n \u0111\u1ed3ng r\u00f5 r\u00e0ng, lo\u1ea1i \u0111\u1ed3ng n\u00e0y Vi\u1ec7c x\u1eed l\u00fd c\u00f4ng khai kh\u00f4ng kh\u00f3, nh\u01b0ng c\u1ea7n ph\u1ea3i t\u00ecm ra s\u1ed1 m\u1ed9t ph\u1ea7n c\u1ee7a tia l\u1eeda t\u1ed1t v\u00e0 \u0111i\u1ec3m chu\u1ea9n.<\/p>

22. Gia c\u00f4ng chi\u00eang \u0111\u1ed3ng m\u1ecfng:<\/p>

Lo\u1ea1i \u0111\u1ed3ng n\u00e0y d\u1ec5 d\u00e0ng thay \u0111\u1ed5i khi n\u00f3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd. N\u00f3 c\u1ea7n s\u1eed d\u1ee5ng m\u1ed9t con dao m\u1edbi khi gia c\u00f4ng. Con dao n\u00ean nh\u1ecf v\u00e0 th\u1ee9c \u0103n kh\u00f4ng th\u1ec3 qu\u00e1 l\u1edbn. \u0110\u1ed9 d\u00e0i a c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd tr\u01b0\u1edbc trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd, nh\u01b0ng d n\u00ean \u0111\u1ec3 l\u1ea1i m\u1ed9t l\u1ec1 l\u1edbn (ch\u1eb3ng h\u1ea1n nh\u01b0 1.0). Mm) \u0110i \u0111i l\u1ea1i l\u1ea1i, m\u1ed7i l\u1ea7n \u0111\u1ed9 s\u00e2u l\u00e0 h = 0,2 ~ 1, \u0111\u1ed9 s\u00e2u c\u1ee7a th\u1ee9c \u0103n kh\u00f4ng qu\u00e1 nhi\u1ec1u v\u00e0 kh\u00f4ng c\u1ea7n thi\u1ebft ph\u1ea3i \u0111i xung quanh con dao trong m\u1ed9t tu\u1ea7n, m\u00e0 ph\u1ea3i chia n\u00f3 th\u00e0nh hai b\u00ean.<\/p>

23. M\u1ea3nh tr\u00e1i v\u00e0 ph\u1ea3i v\u00e0 m\u1ed9t trong hai h\u01b0\u1edbng:<\/p>

\u0110\u00f4i khi m\u1ed9t b\u1ed9 khu\u00f4n s\u1ebd t\u1ea1o ra hai ph\u1ea7n. \u0110\u1ed1i v\u1edbi c\u00e1c ph\u1ea7n b\u00ean tr\u00e1i v\u00e0 b\u00ean ph\u1ea3i, \u0111\u1ed3 h\u1ecda c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00e1ch ph\u1ea3n chi\u1ebfu. N\u1ebfu c\u00f3 hai ph\u1ea7n gi\u1ed1ng h\u1ec7t nhau, \u0111\u1ed3 h\u1ecda ph\u1ea3i ph\u1eb3ng ho\u1eb7c xoay trong XY. N\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c nh\u00e2n \u0111\u00f4i. C\u1ea9n th\u1eadn kh\u00f4ng \u0111\u1ea3o ng\u01b0\u1ee3c h\u01b0\u1edbng.<\/p>

24. H\u01b0\u1edbng c\u1ee7a khu\u00f4n:<\/p>

B\u1ed1n l\u1ed7 d\u1eabn h\u01b0\u1edbng c\u1ee7a khu\u00f4n tr\u1ed1ng kh\u00f4ng ho\u00e0n to\u00e0n \u0111\u1ed1i x\u1ee9ng v\u00e0 m\u1ed9t trong s\u1ed1 ch\u00fang kh\u00f4ng \u0111\u1ed1i x\u1ee9ng. Do \u0111\u00f3, r\u00f5 r\u00e0ng l\u00e0 khu\u00f4n \u0111\u01b0\u1ee3c x\u1eed l\u00fd tr\u01b0\u1edbc v\u00e0 sau khu\u00f4n. C\u00f3 m\u1ed9t t\u00e0i li\u1ec7u tham kh\u1ea3o tr\u00ean m\u1ed7i gi\u1ea5y n\u1ebfn. \u0110\u1eb7c bi\u1ec7t, h\u00e3y ch\u1eafc ch\u1eafn ch\u00fa \u00fd \u0111\u1ebfn khu\u00f4n \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh b\u1edfi khu\u00f4n ban \u0111\u1ea7u. Khi v\u1ebd b\u1ee9c tranh, h\u00e3y ch\u00fa \u00fd \u0111\u1ebfn h\u01b0\u1edbng. H\u01b0\u1edbng c\u1ee7a \u0111\u1ed3ng v\u00e0 m\u1eb7t tr\u01b0\u1edbc (nh\u00ecn t\u1eeb tr\u00ean xu\u1ed1ng) l\u00e0 nh\u01b0 nhau. H\u01b0\u1edbng c\u1ee7a l\u00f5i, khung c\u1ee7a khung T\u00e2y T\u1ea1ng gi\u1ed1ng nh\u01b0 c\u1ee7a \u0111\u1ed3ng, v\u00e0 m\u1eb7t tr\u01b0\u1edbc th\u00ec ng\u01b0\u1ee3c l\u1ea1i. M\u1ed9t s\u1ed1 \u0111\u01b0\u1eddng trang tr\u00ed nh\u01b0 r\u00e3nh ho\u1eb7c tr\u00f9m tr\u00ean b\u1ec1 m\u1eb7t kh\u00f4ng d\u1ec5 x\u1eed l\u00fd v\u00ec ch\u00fang t\u01b0\u01a1ng \u0111\u1ed1i h\u1eb9p. \u0110\u1ed1i v\u1edbi r\u00e3nh, ch\u00fang ta th\u01b0\u1eddng tr\u00e1nh c\u00e1c khe, ngh\u0129a l\u00e0 nghi\u1ec1n \u0111\u1ed9 s\u00e2u, sau \u0111\u00f3 t\u1ea1o th\u00e0nh m\u1ed9t b\u1ed3n r\u1eeda \u0111\u1ec3 t\u1ea1o b\u1ec1 m\u1eb7t ch\u00ecm. \u00d4ng ch\u1ee7 ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u00e1ch th\u00e0nh m\u1ed9t c\u00f4ng ch\u00fang duy nh\u1ea5t, v\u00e0 \u0111\u1ed3ng l\u1edbn kh\u00f4ng \u0111\u01b0\u1ee3c t\u1ea1o ra, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng.<\/p>

25. Khu\u00f4n m\u1eabu, dung sai s\u1ea3n ph\u1ea9m:<\/p>

M\u1ed9t b\u1ed9 s\u1ea3n ph\u1ea9m th\u01b0\u1eddng c\u00f3 v\u00e0i ch\u1ee5c ph\u1ea7n. K\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p ch\u00ednh c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o b\u1edfi m\u00e1y t\u00ednh nh\u00e0m ch\u00e1n. \u0110i\u1ec1u r\u1ea5t quan tr\u1ecdng l\u00e0 ch\u1ecdn dung sai h\u1ee3p l\u00fd, \u0111\u1eb7c bi\u1ec7t l\u00e0 m\u1ed9t s\u1ed1 b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf s\u1ea3n ph\u1ea9m kh\u00f4ng xem x\u00e9t v\u1ea5n \u0111\u1ec1 ph\u1ed1i h\u1ee3p. \u0110\u00e1y, kh\u1edbp v\u1ecf, h\u00ecnh d\u1ea1ng ch\u1eafc ch\u1eafn l\u00e0 0 \u0111\u1ebfn 0, v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o b\u1edfi nh\u00e1nh, dung sai c\u1ee7a mi\u1ec7ng l\u00f5m v\u00e0 mi\u1ec7ng l\u1ed3i n\u00f3i chung l\u00e0 0,1MM, m\u1ed9t b\u00ean. C\u00e1c ph\u1ee5 ki\u1ec7n tr\u00ean th\u00e2n l\u1edbn l\u00e0 g\u01b0\u01a1ng trong su\u1ed1t. H\u00ecnh d\u1ea1ng c\u1ee7a c\u00e1c ph\u1ee5 ki\u1ec7n chung nh\u1ecf h\u01a1n k\u00edch th\u01b0\u1edbc c\u1ee7a c\u01a1 th\u1ec3 l\u1edbn. M\u1eb7t \u0111\u01a1n l\u00e0 0,1 ~ 0,2. C\u00e1c b\u1ed9 ph\u1eadn c\u00f3 th\u1ec3 di chuy\u1ec3n c\u1ee7a c\u01a1 th\u1ec3 l\u1edbn, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c n\u00fat, h\u00ecnh d\u1ea1ng c\u1ee7a c\u00e1c ph\u1ee5 ki\u1ec7n nh\u1ecf h\u01a1n 0,1 ~ 0,5 so v\u1edbi h\u00ecnh d\u1ea1ng c\u1ee7a c\u01a1 th\u1ec3 l\u1edbn. H\u00ecnh d\u1ea1ng c\u1ee7a b\u1ec1 m\u1eb7t c\u1ee7a c\u01a1 th\u1ec3 l\u1edbn n\u00f3i chung gi\u1ed1ng nh\u01b0 h\u00ecnh d\u1ea1ng c\u1ee7a b\u1ec1 m\u1eb7t c\u1ee7a c\u01a1 th\u1ec3 l\u1edbn, v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u1ea1 xu\u1ed1ng t\u1eeb b\u1ec1 m\u1eb7t c\u1ee7a c\u01a1 th\u1ec3.<\/p>

26. G\u00f3c nh\u00e1p (g\u00f3c nh\u00e1p):<\/p>

\u6a21 Khu\u00f4n ph\u1ea3i l\u00e0m cho \u0111\u1ed9 d\u1ed1c c\u1ee7a khu\u00f4n, n\u1ebfu kh\u00f4ng n\u00f3 s\u1ebd lau hoa, n\u1ebfu b\u1ea3n v\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u, b\u1ea1n c\u00f3 th\u1ec3 th\u1ea3o lu\u1eadn v\u1edbi ch\u1ee7 khu\u00f4n, \u0111\u1ed9 d\u1ed1c khu\u00f4n n\u00f3i chung l\u00e0 0,5 ~ 3 \u0111\u1ed9, n\u1ebfu khu\u00f4n kh\u1eafc, g\u00f3c khu\u00f4n \u0111\u1ec3 l\u1edbn h\u01a1n 2 ~ 5 \u0111\u1ed9, t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 d\u00e0y c\u1ee7a m\u1eabu kh\u1eafc.<\/p>

27. V\u1ea5n \u0111\u1ec1 Undercut:<\/p>

Nhi\u1ec1u khi, d\u1ee5ng c\u1ee5 nh\u00e0m ch\u00e1n ch\u1ec9 l\u00e0 phay, l\u01b0\u1ee3ng dao t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn, d\u1ec5 g\u00e2y ra dao v\u00e0 dao b\u1ecb g\u00e3y. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, dao d\u01b0\u1edbi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u1edf ho\u1eb7c dao c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c nh\u1ea5c ra, ho\u1eb7c dao c\u00f3 th\u1ec3 b\u1ecb \u0111\u1eadp v\u1ee1 b\u00ean ngo\u00e0i v\u1eadt li\u1ec7u. \u0110\u1ec3 xem x\u00e9t \u0111\u1ea7y \u0111\u1ee7 v\u1ea5n \u0111\u1ec1 n\u00e0y. L\u1ea5y m\u1ed9t con dao, m\u1ed9t con dao v\u00e0 m\u1ed9t con dao. Khi kh\u1ed1i l\u01b0\u1ee3ng gia c\u00f4ng t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn, gi\u00e1 \u0111\u1ee1 dao qu\u00e1 d\u00e0i v\u00e0 \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng x\u1ea3y ra khi dao qu\u00e1 nh\u1ecf. Kh\u1ed1i l\u01b0\u1ee3ng x\u1eed l\u00fd t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi n\u1ed3ng \u0111\u1ed9 c\u1ee7a th\u1ee9c \u0103n l\u1edbn, r\u1ea5t d\u1ec5 x\u1ea3y ra. V\u00ed d\u1ee5, \u0111\u1ed9 s\u00e2u b\u00ean c\u1ee7a \u00e1nh s\u00e1ng l\u00e0 H = 50mm v\u00e0 \u0111\u01b0\u1eddng k\u00ednh l\u00e0 3\/4, v\u00e0 ch\u00fang ta c\u00f3 th\u1ec3 chia n\u00f3 cho 25 mm \u0111\u1ec3 x\u1eed l\u00fd th\u1ee9 c\u1ea5p, \u0111i\u1ec1u n\u00e0y kh\u00f4ng d\u1ec5 x\u1ea3y ra. C\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c k\u1eb9p qu\u00e1 d\u00e0i v\u00e0 chi\u1ec1u d\u00e0i c\u1ee7a c\u00f4ng c\u1ee5 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 x\u1eed l\u00fd. N\u00f3 n\u00ean c\u00e0ng ng\u1eafn c\u00e0ng t\u1ed1t. Th\u1eadt d\u1ec5 d\u00e0ng cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u b\u1ecf qua v\u1ea5n \u0111\u1ec1 n\u00e0y. \u0110\u1ed9 d\u00e0i c\u1ee7a c\u00f4ng c\u1ee5 ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u tr\u00ean gi\u1ea5y ch\u01b0\u01a1ng tr\u00ecnh. Th\u1eadt d\u1ec5 d\u00e0ng \u0111\u1ec3 l\u1ea5y con dao khi v\u00e0o cua. Gi\u1ea3i ph\u00e1p l\u00e0 \u0111\u1ea7u ti\u00ean x\u00f3a g\u00f3c b\u1eb1ng m\u1ed9t con dao nh\u1ecf h\u01a1n v\u00e0 sau \u0111\u00f3 thay \u0111\u1ed5i c\u1ea1nh c\u1ee7a con dao l\u1edbn. Gi\u1ed1ng nh\u01b0 r\u00e3nh h\u00ecnh b\u00e1n nguy\u1ec7t c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 8 nh\u01b0 trong H\u00ecnh 8, n\u1ebfu n\u00f3 \u0111\u01b0\u1ee3c x\u1eed l\u00fd tr\u1ef1c ti\u1ebfp b\u1eb1ng R4, v\u1ecb tr\u00ed c\u1ee7a dao d\u01b0\u1edbi r\u1ea5t d\u1ec5 l\u1ea5y dao. Gi\u1ea3i ph\u00e1p l\u00e0 (1) s\u1eed d\u1ee5ng R3 \u0111\u1ec3 qu\u00e9t \u0111\u01b0\u1eddng c\u1eaft (2) m\u1edf \u0111\u1ea7u ti\u00ean b\u1eb1ng R3 v\u00e0 cu\u1ed1i c\u00f9ng s\u1eed d\u1ee5ng dao R4 \u0111\u1ec3 x\u00f3a dao g\u00f3c.<\/p>

28. Nghi\u1ec1n m\u1ed9t con dao:<\/p>

H\u00ecnh d\u1ea1ng kh\u00e1c nhau c\u1ee7a m\u00e1y t\u00ednh nh\u00e0m ch\u00e1n th\u01b0\u1eddng y\u00eau c\u1ea7u m\u00e0i dao kh\u00e1c nhau. Nhi\u1ec1u lo\u1ea1i dao kh\u00e1c nhau b\u1ecb m\u00f2n v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c ti\u1ebfp \u0111\u1ea5t. \u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c con dao sau, dao 1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t. B\u1ed1n g\u00f3c c\u1ee7a d\u1ee5ng c\u1ee5 c\u00f3 c\u00f9ng chi\u1ec1u cao 2. \u0110i\u1ec3m A cao h\u01a1n \u0111i\u1ec3m D. M\u1eb7t tr\u01b0\u1edbc (m\u1eb7t dao) c\u1ee7a d\u1ee5ng c\u1ee5 cao h\u01a1n m\u1eb7t sau, ngh\u0129a l\u00e0 c\u00f3 m\u1ed9t g\u00f3c quay l\u1ea1i nh\u1ea5t \u0111\u1ecbnh.<\/p>

29. Ki\u1ec3m tra qu\u00e1 m\u1ee9c:<\/p>

Qu\u00e1 m\u1ee9c l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng x\u1ea3y ra v\u1edbi masterCAM. H\u00e3y c\u1ea9n th\u1eadn. Qu\u00e1 m\u1ee9c c\u00f3 th\u1ec3 x\u1ea3y ra trong m\u1edf \u0111a cong, dao nh\u1eb9, vi\u1ec1n dao, h\u00ecnh d\u1ea1ng v\u00e0 r\u00e3nh. Ngay c\u1ea3 khi c\u00e1c thi\u1ebft l\u1eadp tham s\u1ed1 v\u00e0 l\u1eadp th\u1ec3 c\u1ee7a ng\u1ef1c l\u00e0 ch\u00ednh x\u00e1c, n\u00f3 c\u00f3 th\u1ec3 x\u1ea3y ra. M\u1ed9t s\u1ed1 l\u00e0 l\u1ed7i trong ch\u00ednh ph\u1ea7n m\u1ec1m. Ph\u01b0\u01a1ng ph\u00e1p quan tr\u1ecdng nh\u1ea5t l\u00e0 \u0110\u01b0\u1eddng d\u1eabn c\u00f4ng c\u1ee5 \u0111\u01b0\u1ee3c t\u01b0\u01a1ng t\u1ef1 m\u1ed9t l\u1ea7n, \u1edf ch\u1ebf \u0111\u1ed9 xem tr\u00ean c\u00f9ng, ch\u1ebf \u0111\u1ed9 xem b\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m tra nhi\u1ec1u l\u1ea7n v\u00e0 \u0111\u01b0\u1eddng d\u1eabn c\u00f4ng c\u1ee5 m\u00e0 kh\u00f4ng ki\u1ec3m tra s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p v\u00e0o m\u00e1y. Khi h\u00ecnh d\u1ea1ng \u0111\u01b0\u1ee3c xay, v\u1ecb tr\u00ed c\u1ee7a dao d\u01b0\u1edbi kh\u00f4ng \u0111\u01b0\u1ee3c ch\u1ecdn \u0111\u00fang, v\u00e0 n\u00f3 s\u1ebd b\u1ecb c\u1eaft. B\u1ea1n c\u00f3 th\u1ec3 thay \u0111\u1ed5i v\u1ecb tr\u00ed th\u1ea5p h\u01a1n v\u00e0 b\u1ea1n c\u00f3 th\u1ec3 tr\u00e1nh n\u00f3.<\/p>

30. H\u01b0\u1edbng phay:<\/p>

M\u00e1y t\u00ednh th\u01b0\u1eddng b\u1ecb c\u1eaft gi\u1ea3m, kh\u00f4ng gi\u1ed1ng nh\u01b0 m\u00e1y phay, v\u00ec \u0111\u1ed9 c\u1ee9ng c\u1ee7a m\u00e1y t\u00ednh t\u1ed1t h\u01a1n, kh\u00f4ng d\u1ec5 \u0111\u1ec3 t\u1ea1o dao, \u0111\u1ed9 ch\u1ee5m nh\u1ecf, h\u00ecnh d\u1ea1ng phay ho\u1eb7c r\u00e3nh b\u00ean trong \u0111\u01b0\u1ee3c b\u00f9 l\u1ea1i. Khi gia c\u00f4ng h\u00ecnh d\u1ea1ng \u0111\u1ed1i x\u1ee9ng hai b\u00ean, dao c\u1eaft h\u00ecnh kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c nh\u00e2n \u0111\u00f4i, n\u1ebfu kh\u00f4ng th\u00ec hi\u1ec7u \u1ee9ng x\u1eed l\u00fd c\u1ee7a m\u1eb7t \u0111\u01b0\u1ee3c nh\u00e2n \u0111\u00f4i l\u00e0 kh\u00f4ng t\u1ed1t. Gi\u1ea5y ch\u01b0\u01a1ng tr\u00ecnh \u0111\u01b0\u1ee3c vi\u1ebft \u0111\u1ec3 giao ti\u1ebfp v\u1edbi nh\u00e2n vi\u00ean v\u1eadn h\u00e0nh m\u00e1y c\u00f4ng c\u1ee5. T\u00e0i li\u1ec7u ch\u01b0\u01a1ng tr\u00ecnh n\u00ean bao g\u1ed3m 1) t\u00ean ch\u01b0\u01a1ng tr\u00ecnh 2 k\u00edch th\u01b0\u1edbc v\u00e0 chi\u1ec1u d\u00e0i 3 c\u00f4ng c\u1ee5 gia c\u00f4ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1eddng d\u1eabn 4 ph\u1ee5 c\u1ea5p gia c\u00f4ng 5 dao th\u00f4 ho\u1eb7c dao nh\u1eb9 6 t\u00ean t\u1ec7p h\u00ecnh \u1ea3nh 18. S\u01a1 \u0111\u1ed3 m\u00e1y t\u00ednh qu\u1ea3n l\u00fd \u0111\u1ed3 h\u1ecda n\u00ean ph\u00e2n chia \u0111\u00fang c\u00e1ch, t\u1ed1t nh\u1ea5t l\u00e0 x\u00e2y d\u1ef1ng m\u1ed9t danh m\u1ee5c m\u1ed9t s\u1ea3n ph\u1ea9m, m\u1ed9t ph\u1ea7n t\u1eeb m\u1ed9t t\u00ean kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ea3n \u0111\u1ed3 \u0111\u1ed3ng c\u00f3 t\u00ean A10, m\u00f4 h\u00ecnh ph\u00eda sau c\u00f3 th\u1ec3 l\u00e0 A10C, b\u1ea3n \u0111\u1ed3 m\u00f4 h\u00ecnh ph\u00eda tr\u01b0\u1edbc c\u00f3 t\u00ean A10CAV, b\u1ea3n \u0111\u1ed3 \u0111\u1ed3ng l\u1ecfng l\u1ebbo c\u00f3 t\u00ean A10S1 \u0110i\u1ec1u n\u00e0y l\u00e0m cho n\u00f3 r\u00f5 r\u00e0ng h\u01a1n. 19. Chuy\u1ec3n \u0111\u1ed5i \u0111\u1ecbnh d\u1ea1ng ph\u1ea7n m\u1ec1m kh\u00e1c nhau: Giao ti\u1ebfp v\u1edbi AutoCAD, MastCAM7 ho\u1eb7c cao h\u01a1n c\u00f3 th\u1ec3 \u0111\u1ecdc tr\u1ef1c ti\u1ebfp c\u00e1c t\u1ec7p DWG, th\u1ea5p h\u01a1n 7 phi\u00ean b\u1ea3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i sang \u0111\u1ecbnh d\u1ea1ng DXF trong autocad. C\u00e1c ph\u1ea7n m\u1ec1m CAM kh\u00e1c nh\u01b0 (cimtron, pro \/ e, UG) c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i sang \u0111\u1ecbnh d\u1ea1ng IGS tr\u01b0\u1edbc ti\u00ean.<\/p>

S\u1eed d\u1ee5ng 31.DNC:<\/p>

Sau khi ch\u01b0\u01a1ng tr\u00ecnh ho\u00e0n th\u00e0nh, sau khi ki\u1ec3m tra, kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec, b\u1ea1n c\u00f3 th\u1ec3 sao ch\u00e9p n\u00f3 v\u00e0o m\u00e1y t\u00ednh DNC \u0111\u1ec3 x\u1eed l\u00fd th\u1ef1c t\u1ebf. C\u00f3 hai ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 sao ch\u00e9p ch\u01b0\u01a1ng tr\u00ecnh. Sau \u0111\u00f3 kh\u1edfi \u0111\u1ed9ng ph\u1ea7n m\u1ec1m DNC, t\u00ecm ch\u01b0\u01a1ng tr\u00ecnh \u0111\u1ec3 ch\u1ea1y, nh\u1ea5n ENTER.<\/p>

32. H\u1ec7 t\u1ecda \u0111\u1ed9:<\/p>

C\u00f3 ba lo\u1ea1i, h\u1ec7 t\u1ecda \u0111\u1ed9 c\u01a1 h\u1ecdc, h\u1ec7 t\u1ecda \u0111\u1ed9 gia c\u00f4ng v\u00e0 h\u1ec7 t\u1ecda \u0111\u1ed9 t\u1ea1m th\u1eddi. H\u1ec7 t\u1ecda \u0111\u1ed9 c\u01a1 h\u1ecdc, \u0111i\u1ec3m g\u1ed1c c\u01a1 h\u1ecdc l\u00e0 \u0111i\u1ec3m tham chi\u1ebfu tr\u00ean m\u00e1y. Sau m\u1ed7i l\u1ea7n b\u1eadt ngu\u1ed3n, \u0111i\u1ec3m ban \u0111\u1ea7u \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh sau khi zeroing. V\u1ecb tr\u00ed c\u1ee7a \u0111i\u1ec3m g\u1ed1c c\u01a1 h\u1ecdc \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t v\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c thay \u0111\u1ed5i. H\u1ec7 t\u1ecda \u0111\u1ed9 gia c\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gia c\u00f4ng ph\u00f4i. N\u00f3 l\u00e0 h\u1ec7 t\u1ecda \u0111\u1ed9 ph\u1ee5 c\u1ee7a h\u1ec7 t\u1ecda \u0111\u1ed9 c\u01a1. L\u1ea5y m\u1ed9t \u0111i\u1ec3m trong h\u1ec7 t\u1ecda \u0111\u1ed9 c\u01a1 h\u1ecdc (th\u01b0\u1eddng l\u00e0 \u0111i\u1ec3m trung t\u00e2m ph\u00f4i) l\u00e0m g\u1ed1c t\u1ecda \u0111\u1ed9 v\u00e0 ghi l\u1ea1i gi\u00e1 tr\u1ecb t\u1ecda \u0111\u1ed9 c\u01a1 c\u1ee7a \u0111i\u1ec3m n\u00e0y l\u00e0m gia c\u00f4ng. Ngu\u1ed3n g\u1ed1c c\u1ee7a chu\u1ed7i t\u1ecda \u0111\u1ed9, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1eb7t h\u1ec7 t\u1ecda \u0111\u1ed9 gia c\u00f4ng. H\u1ec7 t\u1ecda \u0111\u1ed9 t\u1ea1m th\u1eddi: T\u1ea1i b\u1ea5t k\u1ef3 th\u1eddi \u0111i\u1ec3m n\u00e0o, m\u1ed7i \u0111i\u1ec3m s\u1ebd b\u1ecb x\u00f3a \u0111\u1ebfn g\u1ed1c t\u1ecda \u0111\u1ed9. T\u01b0\u01a1ng \u1ee9ng v\u1edbi gi\u00e1 tr\u1ecb t\u1ecda \u0111\u1ed9 c\u0169ng c\u00f3 ba gi\u00e1 tr\u1ecb t\u1ecda \u0111\u1ed9: gi\u00e1 tr\u1ecb t\u1ecda \u0111\u1ed9 c\u01a1 h\u1ecdc, gi\u00e1 tr\u1ecb t\u1ecda \u0111\u1ed9 gia c\u00f4ng, gi\u00e1 tr\u1ecb t\u1ecda \u0111\u1ed9 t\u1ea1m th\u1eddi (c\u00f2n g\u1ecdi l\u00e0 gi\u00e1 tr\u1ecb t\u1ecda \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i) 22. Gi\u00e1 tr\u1ecb b\u1ed9 l\u1ecdc th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng: gi\u00e1 tr\u1ecb b\u1ed9 l\u1ecdc chung 0,001 ~ 0,02, b\u00e1n k\u00ednh l\u1ecdc R = 0,1 ~ 0,5 . \u0110\u01b0\u1eddng dao th\u00f4 c\u00f3 gi\u00e1 tr\u1ecb l\u1edbn, \u0111\u01b0\u1eddng dao b\u1ec1 m\u1eb7t nh\u1eb9 c\u00f3 gi\u00e1 tr\u1ecb nh\u1ecf, b\u00e1n k\u00ednh b\u1ec1 m\u1eb7t nh\u1ecf h\u01a1n v\u00e0 gi\u00e1 tr\u1ecb l\u1edbn l\u1edbn h\u01a1n. L\u1ecdc c\u00f3 hi\u1ec7u qu\u1ea3 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m c\u00f4ng su\u1ea5t ch\u01b0\u01a1ng tr\u00ecnh, v\u00e0 m\u00e1y c\u1eaft m\u1ecbn h\u01a1n, nh\u01b0ng qu\u00e1 l\u1edbn \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c gia c\u00f4ng.<\/p><\/div>","protected":false},"excerpt":{"rendered":"

1. The speed of the white steel knife cannot be too fast. 2. The copper work is thicker and less white steel knife, and more use of flying knife or alloy knife. 3. When the workpiece is too high, it should be layered with different lengths of knife to open. 4. After roughing with a…<\/p>","protected":false},"author":2,"featured_media":19366,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-3307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cutting-tools-weekly"],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/01\/1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/3307","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/comments?post=3307"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/3307\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media\/19366"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=3307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=3307"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=3307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}