{"id":3568,"date":"2019-06-15T06:42:37","date_gmt":"2019-06-15T06:42:37","guid":{"rendered":"https:\/\/www.mcctcarbide.com\/?p=3568"},"modified":"2020-05-06T05:10:56","modified_gmt":"2020-05-06T05:10:56","slug":"3-methods-to-control-swarf-flow","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/3-method-to-control-swarf-flow\/","title":{"rendered":"3 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y"},"content":{"rendered":"
\n

Khi c\u00e1c d\u1ea3i b\u0103ng li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c t\u1ea1o ra trong qu\u00e1 tr\u00ecnh gia c\u00f4ng, n\u00f3 kh\u00f4ng ch\u1ec9 d\u1ec5 l\u00e0m x\u01b0\u1edbc b\u1ec1 m\u1eb7t c\u1ee7a ph\u00f4i v\u00e0 l\u00e0m h\u1ecfng l\u01b0\u1ee1i dao m\u00e0 c\u00f2n \u0111e d\u1ecda \u0111\u1ebfn s\u1ef1 an to\u00e0n c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh. V\u00ec v\u1eady, vi\u1ec7c th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p c\u00f4ng ngh\u1ec7 c\u1ea7n thi\u1ebft \u0111\u1ec3 ki\u1ec3m so\u00e1t ki\u1ec3u xo\u00e1y v\u00e0 s\u1ef1 c\u1ed1 v\u1ee1 swarf trong ng\u00e0nh gia c\u00f4ng c\u01a1 kh\u00ed l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n\n\n\n

B\u1edfi v\u00ec swarfs l\u00e0 s\u1ea3n ph\u1ea9m c\u1ee7a bi\u1ebfn d\u1ea1ng l\u1edbp swarf, thay \u0111\u1ed5i \u0111i\u1ec1u ki\u1ec7n c\u1eaft l\u00e0 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 thay \u0111\u1ed5i c\u00e1c lo\u1ea1i swarfs v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 ph\u00e1 v\u1ee1 swarf. C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111i\u1ec1u ki\u1ec7n gia c\u00f4ng swarf ch\u1ee7 y\u1ebfu bao g\u1ed3m v\u1eadt li\u1ec7u ph\u00f4i, g\u00f3c h\u00ecnh h\u1ecdc c\u1ee7a dao v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 swarf.<\/p>\n\n\n\n

C\u00e1c b\u1ea7y \u0111\u00e0n chung c\u1ea7n \u0111\u00e1p \u1ee9ng c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u01a1 b\u1ea3n sau:<\/p>\n\n\n\n

1. swarfs kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1edbng v\u00e0o d\u1ee5ng c\u1ee5 c\u1eaft, ph\u00f4i v\u00e0 c\u00e1c d\u1ee5ng c\u1ee5 v\u00e0 thi\u1ebft b\u1ecb l\u00e2n c\u1eadn c\u1ee7a ch\u00fang.<\/p>\n\n\n\n

2. kh\u00f4ng \u0111\u01b0\u1ee3c b\u1eafn tung t\u00f3e \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho ng\u01b0\u1eddi v\u1eadn h\u00e0nh v\u00e0 ng\u01b0\u1eddi quan s\u00e1t.<\/p>\n\n\n\n

3. Khi gia c\u00f4ng tinh kh\u00f4ng \u0111\u01b0\u1ee3c l\u00e0m x\u01b0\u1edbc b\u1ec1 m\u1eb7t gia c\u00f4ng c\u1ee7a ph\u00f4i l\u00e0m \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t gia c\u00f4ng.<\/p>\n\n\n\n

4. \u0110\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n \u0111\u1eb7t tr\u01b0\u1edbc c\u1ee7a m\u00e1y c\u1eaft, v\u00e0 kh\u00f4ng b\u1ecb m\u00e0i m\u00f2n s\u1edbm v\u00e0 c\u1ed1 g\u1eafng ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng c\u1ee7a m\u00e1y.<\/p>\n\n\n\n

5. Khi swarf ch\u1ea3y ra ngo\u00e0i, n\u00f3 kh\u00f4ng c\u1ea3n tr\u1edf vi\u1ec7c phun ch\u1ea5t l\u1ecfng c\u1eaft; swarf s\u1ebd kh\u00f4ng l\u00e0m x\u01b0\u1edbc h\u01b0\u1edbng d\u1eabn m\u00e1y ho\u1eb7c c\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c.<\/p>\n\n\n\n

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

Ph\u00e2n lo\u1ea1i <\/strong>S<\/strong>warf<\/strong> <\/strong>S<\/strong>kh\u1ec9 \u0111\u1ed9t<\/strong><\/strong><\/h2>\n\n\n\n

Do m\u1ee9c \u0111\u1ed9 bi\u1ebfn d\u1ea1ng d\u1ebbo kh\u00e1c nhau, c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c d\u1ea1ng xo\u00e1y kh\u00e1c nhau, nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh 1. Khi gia c\u00f4ng v\u1eadt li\u1ec7u d\u1ebbo, ch\u1ee7 y\u1ebfu h\u00ecnh th\u00e0nh c\u00e1c d\u1ea1ng bi\u1ebfn d\u1ea1ng d\u1ea3i, d\u1ea1ng n\u1ed1t ho\u1eb7c d\u1ea1ng h\u1ea1t. Khi x\u1eed l\u00fd c\u00e1c v\u1eadt li\u1ec7u gi\u00f2n, th\u01b0\u1eddng h\u00ecnh th\u00e0nh c\u00e1c \u0111\u00e1m m\u1ea3nh r\u1eddi r\u1ea1c.<\/p>\n\n\n\n

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

1. B\u1ea7y b\u1ea7y \u0111\u00e0n: B\u1ea7y b\u1ea7y \u0111\u00e0n li\u00ean t\u1ee5c, \u0111\u00e1y nh\u1eb5n v\u00e0 m\u1eb7t sau c\u00f3 l\u00f4ng t\u01a1, nh\u01b0 trong H\u00ecnh 1-1a. Nh\u1eefng m\u1ea3nh nh\u01b0 v\u1eady d\u1ec5 d\u00e0ng \u0111\u01b0\u1ee3c t\u1ea1o ra khi v\u1eadt li\u1ec7u kim lo\u1ea1i nh\u1ef1a \u0111\u01b0\u1ee3c gia c\u00f4ng b\u1eb1ng m\u00e1y c\u1eaft g\u00f3c c\u00e0o l\u1edbn h\u01a1n v\u1edbi t\u1ed1c \u0111\u1ed9 c\u1eaft cao h\u01a1n. N\u00f3 l\u00e0 s\u1ea3n ph\u1ea9m c\u1ee7a s\u1ef1 bi\u1ebfn d\u1ea1ng kh\u00f4ng \u0111\u1ee7 c\u1ee7a l\u1edbp c\u1eaft. Khi s\u1ea3n xu\u1ea5t c\u00e1c mi\u1ebfng \u0111\u1ec7m d\u1ea3i, qu\u00e1 tr\u00ecnh c\u1eaft m\u1ecbn v\u00e0 \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t c\u1ee7a ph\u00f4i nh\u1ecf, nh\u01b0ng c\u00e1c mi\u1ebfng \u0111\u1ec7m kh\u00f4ng d\u1ec5 b\u1ecb \u0111\u1ee9t, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng cu\u1ed9n d\u00e2y, th\u00f4 r\u00e1p ph\u00f4i v\u00e0 th\u1eadm ch\u00ed \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng, do \u0111\u00f3, v\u1ea5n \u0111\u1ec1 \u0111\u1ee9t g\u00e3y. kh\u00f4ng th\u1ec3 b\u1ecf qua.<\/p>\n\n\n\n

2.Nodular swarf: Nodular swarf l\u00e0 m\u1ed9t lo\u1ea1i swarf c\u00f3 \u0111\u00e1y nh\u1eb5n, c\u00e1c v\u1ebft n\u1ee9t r\u00f5 r\u00e0ng tr\u00ean l\u01b0ng v\u00e0 c\u00e1c v\u1ebft n\u1ee9t s\u00e2u, nh\u01b0 trong h\u00ecnh 1-1b. D\u1ec5 d\u00e0ng t\u1ea1o ra nh\u1eefng v\u1ebft nh\u00e3o nh\u01b0 v\u1eady khi v\u1eadt li\u1ec7u nh\u1ef1a \u0111\u01b0\u1ee3c gia c\u00f4ng \u1edf t\u1ed1c \u0111\u1ed9 c\u1eaft th\u1ea5p h\u01a1n b\u1eb1ng m\u1ed9t d\u1ee5ng c\u1ee5 c\u00f3 g\u00f3c c\u00e0o gi\u1ea3m. N\u00f3 l\u00e0 s\u1ea3n ph\u1ea9m c\u1ee7a s\u1ef1 bi\u1ebfn d\u1ea1ng \u0111\u1ee7 c\u1ee7a l\u1edbp swarf v\u00e0 \u0111\u00e3 \u0111\u1ea1t \u0111\u1ebfn m\u1ee9c \u0111\u1ed9 c\u1eaft. Khi t\u1ea1o ra c\u00e1c v\u00f9ng bi\u1ebfn \u0111\u1ed5i d\u1ea1ng n\u1ed1t, c\u00e1c v\u1ebft c\u1eaft l\u00e0m vi\u1ec7c kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t c\u1ee7a ph\u00f4i t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn.<\/p>\n\n\n\n

3. C\u00e1c b\u1ea7y \u0111\u00e0n d\u1ea1ng h\u1ea1t: C\u00e1c b\u1ea7y \u0111\u00e0n d\u1ea1ng h\u1ea1t l\u00e0 c\u00e1c b\u1ea7y \u0111\u00e0n d\u1ea1ng h\u1ea1t \u0111\u1ed3ng nh\u1ea5t, nh\u01b0 trong H\u00ecnh 1-1c. Khi s\u1eed d\u1ee5ng d\u1ee5ng c\u1ee5 g\u00f3c c\u00e0o nh\u1ecf \u0111\u1ec3 gia c\u00f4ng v\u1eadt li\u1ec7u kim lo\u1ea1i nh\u1ef1a \u1edf t\u1ed1c \u0111\u1ed9 c\u1eaft r\u1ea5t th\u1ea5p, r\u1ea5t d\u1ec5 t\u1ea1o ra c\u00e1c v\u1ebft c\u1eaft nh\u01b0 v\u1eady. N\u00f3 l\u00e0 s\u1ea3n ph\u1ea9m c\u1ee7a l\u1edbp c\u1eaft b\u1ecb bi\u1ebfn d\u1ea1ng ho\u00e0n to\u00e0n, l\u00e0m cho v\u1eadt li\u1ec7u b\u1ecb h\u1ecfng do c\u1eaft v\u00e0 l\u00e0m cho c\u00e1c v\u1ebft c\u1eaft b\u1ecb v\u1ee1 d\u1ecdc theo chi\u1ec1u d\u00e0y. Khi s\u1ea3n xu\u1ea5t d\u1ea1ng h\u1ea1t, c\u00f4ng vi\u1ec7c c\u1eaft kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t c\u1ee7a ph\u00f4i t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn.<\/p>\n\n\n\n

4. b\u1ea7y \u0111\u00e0n ph\u00e2n m\u1ea3nh: b\u1ea7y \u0111\u00e0n m\u1ea3nh l\u00e0 nh\u1eefng b\u1ea7y \u0111\u00e0n c\u00f3 h\u1ea1t m\u1ecbn kh\u00f4ng \u0111\u1ec1u, nh\u01b0 trong H\u00ecnh 1-1d. Khi c\u1eaft c\u00e1c v\u1eadt li\u1ec7u gi\u00f2n, v\u1ebft n\u1ee9t h\u00ecnh th\u00e0nh do s\u1ef1 n\u1ee9t \u0111\u1ed9t ng\u1ed9t c\u1ee7a l\u1edbp c\u1eaft sau khi bi\u1ebfn d\u1ea1ng \u0111\u00e0n h\u1ed3i h\u1ea7u nh\u01b0 kh\u00f4ng chuy\u1ec3n qua giai \u0111o\u1ea1n bi\u1ebfn d\u1ea1ng d\u1ebbo. Khi h\u00ecnh th\u00e0nh c\u00e1c v\u1ebft c\u1eaft, c\u00f4ng vi\u1ec7c c\u1eaft kh\u00f4ng \u1ed5n \u0111\u1ecbnh, l\u01b0\u1ee1i c\u1eaft ch\u1ecbu l\u1ef1c va \u0111\u1eadp l\u1edbn h\u01a1n, b\u1ec1 m\u1eb7t gia c\u00f4ng th\u00f4 r\u00e1p v\u00e0 kh\u00f4ng b\u1eb1ng ph\u1eb3ng.<\/p>\n\n\n\n

\u1ede tr\u00ean c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng c\u00e1c lo\u1ea1i swarfs thay \u0111\u1ed5i theo v\u1eadt li\u1ec7u ph\u00f4i v\u00e0 \u0111i\u1ec1u ki\u1ec7n c\u1eaft. Do \u0111\u00f3, trong qu\u00e1 tr\u00ecnh ch\u1ebf bi\u1ebfn, ch\u00fang ta c\u00f3 th\u1ec3 \u0111\u00e1nh gi\u00e1 \u0111i\u1ec1u ki\u1ec7n c\u1ee7a b\u1ea7y c\u00f3 ph\u00f9 h\u1ee3p hay kh\u00f4ng b\u1eb1ng c\u00e1ch quan s\u00e1t h\u00ecnh d\u1ea1ng b\u1ea7y. Ch\u00fang ta c\u0169ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng swarf b\u1eb1ng c\u00e1ch bi\u1ebfn \u0111\u1ed5i \u0111i\u1ec1u ki\u1ec7n c\u1eaft, \u0111\u1ec3 n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i theo h\u01b0\u1edbng c\u00f3 l\u1ee3i cho s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n

Nguy\u00ean t\u1eafc <\/strong>swarf<\/strong> <\/strong>b<\/strong>l\u00e0m l\u1ea1i<\/strong><\/strong><\/h2>\n\n\n\n

Trong qu\u00e1 tr\u00ecnh gia c\u00f4ng c\u1eaft g\u1ecdt kim lo\u1ea1i, vi\u1ec7c c\u00e1c khe gi\u00f3 c\u00f3 d\u1ec5 b\u1ecb g\u00e3y hay kh\u00f4ng li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ef1 bi\u1ebfn d\u1ea1ng c\u1ee7a c\u00e1c khe tr\u01b0\u1ee3t. V\u00ec v\u1eady, vi\u1ec7c nghi\u00ean c\u1ee9u nguy\u00ean l\u00fd ph\u00e1 v\u1ee1 swarf ph\u1ea3i b\u1eaft \u0111\u1ea7u t\u1eeb vi\u1ec7c nghi\u00ean c\u1ee9u \u0111\u1ecbnh lu\u1eadt bi\u1ebfn d\u1ea1ng swarf.<\/p>\n\n\n\n

swarfs h\u00ecnh th\u00e0nh trong qu\u00e1 tr\u00ecnh c\u1eaft g\u1ecdt s\u1ebd c\u00f3 \u0111\u1ed9 c\u1ee9ng cao h\u01a1n v\u00e0 \u0111\u1ed9 d\u1ebbo, dai th\u1ea5p h\u01a1n do \u0111\u1ed9 bi\u1ebfn d\u1ea1ng d\u1ebbo t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f4ng c\u1ee9ng ngu\u1ed9i. Sau khi \u0111\u00f4ng c\u1ee9ng ngu\u1ed9i, c\u00e1c c\u00e1nh \u0111\u00e0n tr\u1edf n\u00ean c\u1ee9ng v\u00e0 gi\u00f2n, d\u1ec5 g\u00e3y khi ch\u1ecbu t\u1ea3i tr\u1ecdng u\u1ed1n ho\u1eb7c va \u0111\u1eadp xen k\u1ebd. \u0110\u1ed9 bi\u1ebfn d\u1ea1ng d\u1ebbo c\u00e0ng l\u1edbn m\u00e0 swarf tr\u1ea3i qua th\u00ec hi\u1ec7n t\u01b0\u1ee3ng c\u1ee9ng, gi\u00f2n c\u00e0ng r\u00f5 r\u00e0ng v\u00e0 c\u00e0ng d\u1ec5 g\u00e3y. Khi c\u1eaft c\u00e1c v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 b\u1ec1n cao, \u0111\u1ed9 d\u1ebbo cao v\u00e0 \u0111\u1ed9 dai cao kh\u00f3 b\u1ebb g\u00e3y, ch\u00fang ta n\u00ean c\u1ed1 g\u1eafng t\u0103ng \u0111\u1ed9 bi\u1ebfn d\u1ea1ng c\u1ee7a c\u00e1c c\u00e1nh \u0111\u00e0n \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 d\u1ebbo v\u00e0 \u0111\u1ed9 dai c\u1ee7a ch\u00fang, nh\u1eb1m \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch b\u1ebb g\u1eaby \u0111\u00e0n.<\/p>\n\n\n\n

Bi\u1ebfn d\u1ea1ng swarf c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh hai ph\u1ea7n:<\/p>\n\n\n\n

Ph\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh trong qu\u00e1 tr\u00ecnh c\u1eaft, ch\u00fang ta g\u1ecdi l\u00e0 bi\u1ebfn d\u1ea1ng c\u01a1 b\u1ea3n. Bi\u1ebfn d\u1ea1ng swarf \u0111o b\u1eb1ng c\u00e1ch c\u1eaft t\u1ef1 do v\u1edbi d\u1ee5ng c\u1ee5 ti\u1ec7n m\u1eb7t c\u00e0o ph\u1eb3ng g\u1ea7n v\u1edbi gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ebfn d\u1ea1ng c\u01a1 b\u1ea3n. C\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn bi\u1ebfn d\u1ea1ng c\u01a1 b\u1ea3n l\u00e0 g\u00f3c c\u00e0o dao, v\u00e1t m\u00e9p \u00e2m v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1eaft. G\u00f3c ph\u00eda tr\u01b0\u1edbc c\u00e0ng nh\u1ecf, m\u00e9p v\u00e1t \u00e2m c\u00e0ng r\u1ed9ng v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1eaft c\u00e0ng th\u1ea5p, bi\u1ebfn d\u1ea1ng swarf c\u00e0ng l\u1edbn v\u00e0 kh\u1ea3 n\u0103ng b\u1ebb swarf c\u00e0ng t\u1ed1t. Do \u0111\u00f3, gi\u1ea3m g\u00f3c ph\u00eda tr\u01b0\u1edbc, m\u1edf r\u1ed9ng v\u00e1t m\u00e9p \u00e2m v\u00e0 gi\u1ea3m t\u1ed1c \u0111\u1ed9 c\u1eaft c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ec3 th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh ph\u00e1 v\u1ee1 swarf.<\/p>\n\n\n\n

Ph\u1ea7n th\u1ee9 hai l\u00e0 s\u1ef1 bi\u1ebfn d\u1ea1ng c\u1ee7a c\u00e1c \u0111\u00e1m s\u00ecnh trong qu\u00e1 tr\u00ecnh ch\u1ea3y v\u00e0 u\u1ed1n l\u01b0\u1ee3n m\u00e0 ch\u00fang ta g\u1ecdi l\u00e0 bi\u1ebfn d\u1ea1ng b\u1ed5 sung. B\u1edfi v\u00ec trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, ch\u1ec9 c\u00f3 bi\u1ebfn d\u1ea1ng c\u01a1 b\u1ea3n trong qu\u00e1 tr\u00ecnh c\u1eaft kh\u00f4ng th\u1ec3 l\u00e0m cho bi\u1ebfn d\u1ea1ng g\u1eaby \u0111\u01b0\u1ee3c, c\u1ea7n ph\u1ea3i th\u00eam m\u1ed9t bi\u1ebfn d\u1ea1ng b\u1ed5 sung kh\u00e1c \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch c\u1ee9ng v\u00e0 \u0111\u1ee9t. C\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u1ea5t \u0111\u1ec3 bu\u1ed9c c\u00e1c b\u1ea7y \u0111\u00e0n ph\u1ea3i ch\u1ecbu th\u00eam s\u1ef1 bi\u1ebfn d\u1ea1ng l\u00e0 m\u00e0i (ho\u1eb7c \u1ea5n) m\u1ed9t h\u00ecnh d\u1ea1ng nh\u1ea5t \u0111\u1ecbnh c\u1ee7a r\u00e3nh ph\u00e1 \u0111\u00e0n tr\u00ean m\u1eb7t c\u00e0o \u0111\u1ec3 bu\u1ed9c c\u00e1c \u0111\u00e0n c\u00f2 cu\u1ed9n l\u1ea1i v\u00e0 bi\u1ebfn d\u1ea1ng khi ch\u1ea3y v\u00e0o r\u00e3nh ph\u00e1 v\u1ee1. swarfs \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng h\u01a1n v\u00e0 n\u1ed5i l\u00ean sau khi c\u00f3 th\u00eam bi\u1ebfn d\u1ea1ng u\u1ed1n n\u1ebfp, v\u00e0 d\u1ec5 d\u00e0ng b\u1ecb ph\u00e1 v\u1ee1 khi ch\u00fang va ch\u1ea1m v\u1edbi ph\u00f4i ho\u1eb7c s\u01b0\u1eddn.<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p ph\u00e1 v\u1ee1 Swarf<\/strong>S<\/h2>\n\n\n\n

L\u00fd do c\u01a1 b\u1ea3n cho s\u1ef1 \u0111\u1ee9t g\u00e3y v\u00e0 li\u00ean t\u1ee5c c\u1ee7a swarf n\u1eb1m \u1edf s\u1ef1 bi\u1ebfn d\u1ea1ng v\u00e0 \u1ee9ng su\u1ea5t trong qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh swarf. Khi swarf \u1edf tr\u1ea1ng th\u00e1i bi\u1ebfn d\u1ea1ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c \u1ee9ng su\u1ea5t swarf \u0111\u1ea1t \u0111\u1ebfn gi\u1edbi h\u1ea1n \u0111\u1ed9 b\u1ec1n c\u1ee7a n\u00f3, swarf s\u1ebd b\u1ecb v\u1ee1. Th\u00f4ng th\u01b0\u1eddng, swarf s\u1ebd b\u1ecb g\u00e3y sau khi u\u1ed1n.<\/p>\n\n\n\n

L\u1ef1a ch\u1ecdn h\u1ee3p l\u00fd g\u00f3c h\u00ecnh h\u1ecdc dao, c\u00e1c th\u00f4ng s\u1ed1 c\u1eaft v\u00e0 r\u00e3nh c\u1eaft r\u00e3nh l\u00e0 nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p b\u1ebb g\u1eaby th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n\n\n\n

1. Reducing the rake angle and increasing the principal deviation angle: the rake angle and the principal deviation angle are the geometric angles of the tool which have great influence on swarf breaking. Reduce the front corner, increase swarf deformation, easy swarf breaking. Because small rake angle grinding will increase cutting force and limit the improvement of cutting parameters, tool will be damaged or even “stuffy” when it is serious. Generally, swarf breaking is not only done by reducing rake angle.  Increasing the main deviation angle can increase the cutting thickness and easy swarf breaking. For example, under the same conditions, 90 degree knife is easier to break swarfs than 45 degree knife. In addition, increasing the main deflection angle is beneficial to reduce the vibration in processing. Therefore, increasing the main deflection angle is an effective swarf breaking method.<\/p>\n\n\n\n

2. Gi\u1ea3m t\u1ed1c \u0111\u1ed9 c\u1eaft, t\u0103ng ti\u1ebfn dao v\u00e0 thay \u0111\u1ed5i c\u00e1c th\u00f4ng s\u1ed1 c\u1eaft l\u00e0 nh\u1eefng bi\u1ec7n ph\u00e1p kh\u00e1c \u0111\u1ec3 ph\u00e1 v\u1ee1 v\u1ebft c\u1eaft. Vi\u1ec7c t\u0103ng t\u1ed1c \u0111\u1ed9 c\u1eaft s\u1ebd l\u00e0m cho kim lo\u1ea1i d\u01b0\u1edbi c\u00f9ng c\u1ee7a t\u1ea5m ch\u1eafn m\u1ec1m v\u00e0 \u0111\u1ed9 bi\u1ebfn d\u1ea1ng c\u1ee7a t\u1ea5m ch\u1eafn kh\u00f4ng \u0111\u1ee7, kh\u00f4ng c\u00f3 l\u1ee3i cho vi\u1ec7c ph\u00e1 v\u1ee1 v\u1ebft c\u1eaft; gi\u1ea3m t\u1ed1c \u0111\u1ed9 c\u1eaft s\u1ebd d\u1eabn \u0111\u1ebfn \u0111\u1ee9t g\u00e3y. Do \u0111\u00f3, trong qu\u00e1 tr\u00ecnh quay, c\u00f3 th\u1ec3 ph\u00e1 v\u1ee1 c\u00e1c swarfs do gi\u1ea3m t\u1ed1c \u0111\u1ed9 tr\u1ee5c ch\u00ednh v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1eaft. T\u0103ng ngu\u1ed3n c\u1ea5p d\u1eef li\u1ec7u c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 d\u00e0y c\u1ee7a v\u1ebft c\u1eaft v\u00e0 d\u1ec5 b\u1ecb \u0111\u1ee9t g\u00e3y. \u0110\u00e2y l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p b\u1ebb g\u00e3y ph\u1ed5 bi\u1ebfn trong qu\u00e1 tr\u00ecnh gia c\u00f4ng, nh\u01b0ng c\u1ea7n l\u01b0u \u00fd r\u1eb1ng v\u1edbi s\u1ef1 gia t\u0103ng c\u1ee7a c\u1ea5p li\u1ec7u, \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t c\u1ee7a ph\u00f4i s\u1ebd t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n

3. R\u00e3nh ph\u00e1 swarf h\u1edf: r\u00e3nh b\u1ebb swarf d\u00f9ng \u0111\u1ec3 ch\u1ec9 r\u00e3nh \u0111\u01b0\u1ee3c t\u1ea1o tr\u00ean m\u1eb7t c\u00e0o c\u1ee7a d\u1ee5ng c\u1ee5. H\u00ecnh d\u1ea1ng, chi\u1ec1u r\u1ed9ng v\u00e0 g\u00f3c xi\u00ean c\u1ee7a r\u00e3nh ph\u00e1 v\u1ee1 l\u00e0 t\u1ea5t c\u1ea3 c\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn qu\u00e1 tr\u00ecnh ph\u00e1 v\u1ee1.<\/p>\n\n\n\n

1) H\u00ecnh d\u1ea1ng c\u1ee7a r\u00e3nh ph\u00e1 v\u1ee1 swarf<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

C\u00e1c r\u00e3nh b\u1ebb cong th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0 ba r\u00e3nh, t\u1ee9c l\u00e0 \u0111\u01b0\u1eddng g\u1ea5p kh\u00fac, \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 cung tr\u00f2n, v\u00e0 cung tr\u00f2n \u0111\u1ea7y \u0111\u1ee7, nh\u01b0 trong H\u00ecnh 2.<\/p>\n\n\n\n

Khi c\u1eaft th\u00e9p cacbon, th\u00e9p h\u1ee3p kim v\u00e0 th\u00e9p d\u1ee5ng c\u1ee5, c\u00f3 th\u1ec3 ch\u1ecdn \u0111\u01b0\u1eddng g\u1ea5p kh\u00fac, cung \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 r\u00e3nh \u0111\u1ee9t g\u00e3y; Khi c\u1eaft ph\u00f4i v\u1eadt li\u1ec7u nh\u1ef1a cao, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed3ng nguy\u00ean ch\u1ea5t, ph\u00f4i th\u00e9p kh\u00f4ng g\u1ec9, c\u00f3 th\u1ec3 ch\u1ecdn r\u00e3nh ph\u00e1 v\u1ee1 v\u00f2ng cung tr\u00f2n \u0111\u1ea7y \u0111\u1ee7.<\/p>\n\n\n\n

2) Chi\u1ec1u r\u1ed9ng c\u1ee7a r\u00e3nh ph\u00e1 v\u1ee1 swarf<\/h3>\n\n\n\n

Chi\u1ec1u r\u1ed9ng c\u1ee7a r\u00e3nh ph\u00e1 v\u1ee1 c\u00f3 \u1ea3nh h\u01b0\u1edfng l\u1edbn \u0111\u1ebfn qu\u00e1 tr\u00ecnh ph\u00e1 v\u1ee1. N\u00f3i chung, chi\u1ec1u r\u1ed9ng r\u00e3nh c\u00e0ng nh\u1ecf th\u00ec b\u00e1n k\u00ednh u\u1ed1n c\u1ee7a r\u00e3nh u\u1ed1n c\u00e0ng nh\u1ecf, \u1ee9ng su\u1ea5t u\u1ed1n tr\u00ean r\u00e3nh u\u1ed1n c\u00e0ng l\u1edbn v\u00e0 c\u00e0ng d\u1ec5 g\u00e3y. Do \u0111\u00f3, chi\u1ec1u r\u1ed9ng r\u00e3nh ph\u00e1 v\u1ee1 swarf nh\u1ecf h\u01a1n c\u00f3 l\u1ee3i cho vi\u1ec7c ph\u00e1 v\u1ee1 swarf. Nh\u01b0ng chi\u1ec1u r\u1ed9ng c\u1ee7a r\u00e3nh ph\u00e1 v\u1ee1 swarf ph\u1ea3i \u0111\u01b0\u1ee3c xem x\u00e9t li\u00ean quan \u0111\u1ebfn chi\u1ec1u s\u00e2u c\u1eaft_p c\u1ee7a ngu\u1ed3n c\u1ea5p d\u1eef li\u1ec7u.<\/p>\n\n\n\n

C\u00e1c b\u1ea7y h\u00ecnh ch\u1eef C c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh n\u1ebfu chi\u1ec1u r\u1ed9ng c\u1ee7a r\u00e3nh ph\u00e1 v\u1ee1 v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ea5p li\u1ec7u v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 ph\u00f9 h\u1ee3p. N\u1ebfu r\u00e3nh cu\u1ed9n swarf qu\u00e1 h\u1eb9p, d\u1ec5 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng ch\u1eb7n swarf, l\u00e0m t\u0103ng t\u1ea3i tr\u1ecdng c\u1ee7a dao ti\u1ec7n v\u00e0 th\u1eadm ch\u00ed l\u00e0m h\u1ecfng l\u01b0\u1ee1i c\u1eaft; n\u1ebfu r\u00e3nh cu\u1ed9n xo\u1eafn qu\u00e1 r\u1ed9ng v\u00e0 b\u00e1n k\u00ednh cu\u1ed9n c\u1eaft qu\u00e1 l\u1edbn, bi\u1ebfn d\u1ea1ng c\u1eaft kh\u00f4ng \u0111\u1ee7, kh\u00f4ng d\u1ec5 b\u1ecb \u0111\u1ee9t v\u00e0 th\u01b0\u1eddng kh\u00f4ng ch\u1ea3y qua \u0111\u00e1y c\u1ee7a r\u00e3nh \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c xo\u00e1y d\u1ea3i li\u00ean t\u1ee5c.<\/p>\n\n\n\n

Chi\u1ec1u r\u1ed9ng c\u1ee7a r\u00e3nh swarf c\u0169ng ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi chi\u1ec1u s\u00e2u c\u1eaft. Ng\u01b0\u1ee3c l\u1ea1i, khi r\u00e3nh qu\u00e1 h\u1eb9p s\u1ebd xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng b\u1ec1 r\u1ed9ng r\u00e3nh kh\u00f4ng d\u1ec5 cu\u1ed9n tr\u00f2n trong r\u00e3nh v\u00e0 r\u00e3nh s\u1ebd kh\u00f4ng ch\u1ea3y qua \u0111\u00e1y r\u00e3nh \u0111\u1ec3 t\u1ea1o th\u00e0nh c\u00e1c d\u1ea3i b\u0103ng. Khi r\u00e3nh qu\u00e1 r\u1ed9ng, r\u00e3nh tr\u1edf n\u00ean h\u1eb9p, d\u00f2ng ch\u1ea3y t\u1ef1 do h\u01a1n, bi\u1ebfn d\u1ea1ng kh\u00f4ng \u0111\u1ee7 v\u00e0 kh\u00f4ng b\u1ecb \u0111\u1ee9t.<\/p>\n\n\n\n

\u0110\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c hi\u1ec7u qu\u1ea3 ph\u00e1 v\u1ee1 swarf \u0111\u1ea1t y\u00eau c\u1ea7u, chi\u1ec1u r\u1ed9ng th\u00edch h\u1ee3p c\u1ee7a r\u00e3nh b\u1ebb swarf ph\u1ea3i \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn theo c\u00e1c \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd c\u1ee5 th\u1ec3. \u0110\u1ed1i v\u1edbi v\u1eadt li\u1ec7u c\u00f3 \u0111\u1ed9 c\u1ee9ng th\u1ea5p h\u01a1n, c\u00e1c khe ph\u1ea3i h\u1eb9p h\u01a1n, ng\u01b0\u1ee3c l\u1ea1i c\u00e1c khe ph\u1ea3i r\u1ed9ng h\u01a1n.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

When continuous strip swarfs are produced in processing, it is not only easy to scratch the surface of the workpiece and damage the blade, but also threaten the safety of the operator. Therefore, it is very important to take necessary technological measures to control the swarf type and swarf breakage in the mechanical processing industry. Because swarfs are the…<\/p>","protected":false},"author":2,"featured_media":19333,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[92],"tags":[],"jetpack_featured_media_url":"https:\/\/www.meetyoucarbide.com\/wp-content\/uploads\/2019\/06\/4.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/3568"}],"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=3568"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/3568\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media\/19333"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=3568"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=3568"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=3568"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}