{"id":1829,"date":"2019-05-22T02:48:07","date_gmt":"2019-05-22T02:48:07","guid":{"rendered":"http:\/\/www.meetyoucarbide.com\/single-post-what-is-drilling-and-what-drilling-tools-are-there\/"},"modified":"2020-05-04T13:12:04","modified_gmt":"2020-05-04T13:12:04","slug":"what-is-drilling-and-what-drilling-tools-are-there","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/vi\/cai-gi-khoan-va-cai-gi-cai-cong-cu-gi-do-o-do\/","title":{"rendered":"Khoan l\u00e0 g\u00ec v\u00e0 c\u00f4ng c\u1ee5 khoan l\u00e0 g\u00ec?"},"content":{"rendered":"
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M\u00e1y khoan l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u00e1y \u0111\u1ec3 gia c\u00f4ng c\u00e1c l\u1ed7 b\u00ean trong. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u1ed7 m\u00e1y trong v\u1eadt li\u1ec7u r\u1eafn. N\u00f3 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gia c\u00f4ng ph\u00f4i v\u1edbi h\u00ecnh d\u1ea1ng ph\u1ee9c t\u1ea1p v\u00e0 kh\u00f4ng c\u00f3 tr\u1ee5c xoay \u0111\u1ed1i x\u1ee9ng, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c l\u1ed7 \u0111\u01a1n tr\u00ean c\u00e1c b\u1ed9 ph\u1eadn nh\u01b0 \u0111\u00f2n b\u1ea9y, v\u1ecf, h\u1ed9p v\u00e0 khung. H\u1ec7 th\u1ed1ng l\u1ed7. Vi\u1ec7c khoan l\u00e0 gia c\u00f4ng th\u00f4.<\/div>\n
\u2022 \u0110\u1eb7c \u0111i\u1ec3m qu\u00e1 tr\u00ecnh khoan<\/div>\n
(1) Khi m\u0169i khoan \u0111\u01b0\u1ee3c c\u1eaft \u1edf tr\u1ea1ng th\u00e1i n\u1eeda k\u00edn, s\u1ed1 l\u01b0\u1ee3ng c\u1eaft l\u1edbn v\u00e0 vi\u1ec7c lo\u1ea1i b\u1ecf chip r\u1ea5t kh\u00f3 kh\u0103n.<\/div>\n
(2) Ma s\u00e1t nghi\u00eam tr\u1ecdng, sinh ra nhi\u1ec1u nhi\u1ec7t h\u01a1n v\u00e0 t\u1ea1o ra h<\/div>\n
\u0102n ti\u00eau kh\u00f3.<\/div>\n
(3) T\u1ed1c \u0111\u1ed9 cao v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1eaft cao l\u00e0m cho bit b\u1ecb hao m\u00f2n nghi\u00eam tr\u1ecdng.<\/div>\n
(4) B\u00f3p l\u00e0 nghi\u00eam tr\u1ecdng, l\u1ef1c c\u1eaft y\u00eau c\u1ea7u l\u00e0 l\u1edbn, v\u00e0 n\u00f3 d\u1ec5 d\u00e0ng t\u1ea1o ra c\u00f4ng vi\u1ec7c l\u1ea1nh c\u1ee9ng c\u1ee7a t\u01b0\u1eddng l\u1ed7.<\/div>\n
(5) M\u0169i khoan m\u1ecfng v\u00e0 nh\u00f4 ra, v\u00e0 r\u1ea5t d\u1ec5 u\u1ed1n cong v\u00e0 rung trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd.<\/div>\n
(6) \u0110\u1ed9 ch\u00ednh x\u00e1c khoan th\u1ea5p, \u0111\u1ed9 ch\u00ednh x\u00e1c k\u00edch th\u01b0\u1edbc l\u00e0 IT13 \u0111\u1ebfn IT10 v\u00e0 \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t Ra l\u00e0 12,5 \u0111\u1ebfn 6,3 \u00b7m.<\/div>\n

Ph\u1ea1m vi qu\u00e1 tr\u00ecnh c\u1eaft<\/h2>\n
Qu\u00e1 tr\u00ecnh khoan c\u00f3 m\u1ed9t lo\u1ea1t c\u00e1c quy tr\u00ecnh. C\u00e1c c\u00f4ng c\u1ee5 kh\u00e1c nhau c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean m\u00e1y khoan \u0111\u1ec3 ho\u00e0n th\u00e0nh l\u1ed7 trung t\u00e2m khoan, khoan, khoan, khoan, khai th\u00e1c, c\u00e1c m\u1eb7t cu\u1ed1i nh\u00e0m ch\u00e1n v\u00e0 nh\u00e0m ch\u00e1n, nh\u01b0 trong h\u00ecnh. \u0110\u1ed9 ch\u00ednh x\u00e1c khoan tr\u00ean m\u00e1y khoan l\u00e0 th\u1ea5p, nh\u01b0ng l\u1ed7 c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao (IT6 ~ IT8, \u0111\u1ed9 nh\u00e1m b\u1ec1 m\u1eb7t l\u00e0 1,6-0,4\u03bcm) c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gia c\u00f4ng b\u1eb1ng c\u00e1ch khoan l\u1ed7 khoan m\u0169i khoan. C\u00e1c v\u1eadt c\u1ed1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gia c\u00f4ng h\u1ec7 th\u1ed1ng l\u1ed7 v\u1edbi c\u00e1c y\u00eau c\u1ea7u v\u1ecb tr\u00ed.<\/div>\n
Khi gia c\u00f4ng tr\u00ean m\u00e1y khoan, ph\u00f4i \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh v\u00e0 dao di chuy\u1ec3n theo h\u01b0\u1edbng d\u1ecdc tr\u1ee5c (chuy\u1ec3n \u0111\u1ed9ng n\u1ea1p) trong khi quay (chuy\u1ec3n \u0111\u1ed9ng ch\u00ednh).<\/div>\n

M\u00e1ykhoan<\/h2>\n
C\u00e1c lo\u1ea1i m\u00e1y khoan ch\u00ednh l\u00e0: m\u00e1y khoan b\u00e0n, m\u00e1y khoan \u0111\u1ee9ng, m\u00e1y khoan xuy\u00ean t\u00e2m, m\u00e1y phay v\u00e0 m\u00e1y khoan, v\u00e0 m\u00e1y khoan l\u1ed7 trung t\u00e2m. Th\u00f4ng s\u1ed1 ch\u00ednh c\u1ee7a m\u00e1y khoan th\u01b0\u1eddng l\u00e0 \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 khoan t\u1ed1i \u0111a.<\/div>\n
M\u00e1y khoan \u0111\u1ee9ng l\u00e0 m\u1ed9t m\u00e1y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u00e1y khoan. N\u00f3 \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng \u1edf ch\u1ed7 tr\u1ee5c ch\u00ednh \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo chi\u1ec1u d\u1ecdc v\u00e0 v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh. V\u1ecb tr\u00ed c\u1ee7a ph\u00f4i c\u1ea7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh sao cho \u0111\u01b0\u1eddng t\u00e2m c\u1ee7a l\u1ed7 gia c\u00f4ng \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh v\u1edbi \u0111\u01b0\u1eddng t\u00e2m xoay c\u1ee7a dao. Chuy\u1ec3n \u0111\u1ed9ng ch\u00ednh \u0111\u1ea1t \u0111\u01b0\u1ee3c b\u1eb1ng c\u00e1ch quay c\u00f4ng c\u1ee5 trong khi di chuy\u1ec3n theo h\u01b0\u1edbng d\u1ecdc tr\u1ee5c cho chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a th\u1ee9c \u0103n. Do \u0111\u00f3, m\u00e1y khoan \u0111\u1ee9ng kh\u00f4ng thu\u1eadn ti\u1ec7n khi v\u1eadn h\u00e0nh v\u00e0 n\u0103ng su\u1ea5t kh\u00f4ng cao. Th\u00edch h\u1ee3p \u0111\u1ec3 gia c\u00f4ng c\u00e1c b\u1ed9 ph\u1eadn v\u1eeba v\u00e0 nh\u1ecf trong s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t nh\u1ecf.<\/div>\n
\u2022 Nguy\u00ean l\u00fd truy\u1ec1n \u0111\u1ed9ng c\u1ee7a m\u00e1y khoan \u0111\u1ee9ng.<\/div>\n
Chuy\u1ec3n \u0111\u1ed9ng ch\u00ednh: \u0111\u1ed9ng c\u01a1 \u0111\u01a1n t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1edfi c\u01a1 c\u1ea5u thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9 b\u01b0\u1edbc b\u00e1nh r\u0103ng; h\u01b0\u1edbng quay c\u1ee7a tr\u1ee5c ch\u00ednh \u0111\u01b0\u1ee3c thay \u0111\u1ed5i b\u1edfi v\u00f2ng quay ti\u1ebfn v\u00e0 l\u00f9i c\u1ee7a \u0111\u1ed9ng c\u01a1.<\/div>\n
Chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a th\u1ee9c \u0103n: Tr\u1ee5c xoay di chuy\u1ec3n tuy\u1ebfn t\u00ednh v\u1edbi \u1ed1ng b\u1ecdc tr\u1ee5c ch\u00ednh trong v\u1ecf tr\u1ee5c ch\u00ednh. L\u01b0\u1ee3ng chuy\u1ec3n \u0111\u1ed9ng d\u1ecdc tr\u1ee5c c\u1ee7a tr\u1ee5c ch\u00ednh \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng l\u01b0\u1ee3ng chuy\u1ec3n \u0111\u1ed9ng d\u1ecdc tr\u1ee5c c\u1ee7a tr\u1ee5c ch\u00ednh tr\u00ean m\u1ed7i v\u00f2ng quay c\u1ee7a tr\u1ee5c ch\u00ednh. Th\u1ee9 hai, m\u00e1y khoan b\u00e0n. M\u00e1y khoan b\u00e0n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u00e1y khoan b\u00e0n. N\u00f3 th\u1ef1c ch\u1ea5t l\u00e0 m\u1ed9t m\u00e1y khoan \u0111\u1ee9ng \u0111\u1ec3 gia c\u00f4ng c\u00e1c l\u1ed7 nh\u1ecf. C\u1ea5u tr\u00fac \u0111\u01a1n gi\u1ea3n v\u00e0 nh\u1ecf g\u1ecdn, linh ho\u1ea1t v\u00e0 thu\u1eadn ti\u1ec7n, v\u00e0 ph\u00f9 h\u1ee3p \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c l\u1ed7 nh\u1ecf tr\u00ean c\u00e1c b\u1ed9 ph\u1eadn nh\u1ecf. \u0110\u01b0\u1eddng k\u00ednh c\u1ee7a l\u1ed7 khoan th\u01b0\u1eddng nh\u1ecf h\u01a1n 15mm.<\/div>\n
Th\u1ee9 ba, m\u00e1y khoan xuy\u00ean t\u00e2m<\/div>\n
\u0110\u1ed1i v\u1edbi ph\u00f4i c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn, s\u1ebd r\u1ea5t b\u1ea5t ti\u1ec7n khi x\u1eed l\u00fd tr\u00ean m\u00e1y khoan \u0111\u1ee9ng. T\u1ea1i th\u1eddi \u0111i\u1ec3m n\u00e0y, m\u00e1y khoan xuy\u00ean t\u00e2m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 x\u1eed l\u00fd.<\/div>\n
Ph\u1ea7n \u0111\u1ea7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh ngang d\u1ecdc theo \u0111\u01b0\u1eddng ray d\u1eabn h\u01b0\u1edbng tr\u00ean c\u00e1nh tay rocker. C\u00e1nh tay rocker c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh d\u1ecdc theo b\u1ec1 m\u1eb7t h\u00ecnh tr\u1ee5 c\u1ee7a c\u1ed9t v\u00e0 c\u00f3 th\u1ec3 xoay quanh c\u1ed9t. Trong qu\u00e1 tr\u00ecnh gia c\u00f4ng, ph\u00f4i \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh v\u00e0 v\u1ecb tr\u00ed c\u1ee7a tr\u1ee5c ch\u00ednh \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh sao cho t\u00e2m \u0111\u01b0\u1ee3c c\u0103n v\u1edbi t\u00e2m c\u1ee7a l\u1ed7 \u0111\u01b0\u1ee3c gia c\u00f4ng v\u00e0 k\u1eb9p nhanh \u0111\u1ec3 duy tr\u00ec v\u1ecb tr\u00ed ch\u00ednh x\u00e1c. M\u00e1y khoan xuy\u00ean t\u00e2m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t \u0111\u01a1n v\u00e0 v\u1eeba \u0111\u1ec3 x\u1eed l\u00fd c\u00e1c b\u1ed9 ph\u1eadn l\u1edbn v\u00e0 v\u1eeba.<\/div>\n
N\u1ebfu b\u1ea1n mu\u1ed1n m\u00e1y l\u1ed7 v\u00e0 l\u1ed7 theo b\u1ea5t k\u1ef3 h\u01b0\u1edbng n\u00e0o v\u00e0 t\u1ea1i b\u1ea5t k\u1ef3 v\u1ecb tr\u00ed n\u00e0o, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e1y khoan xuy\u00ean t\u00e2m ph\u1ed5 qu\u00e1t. Tr\u1ee5c m\u00e1y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xoay quanh m\u1ed9t tr\u1ee5c c\u1ee5 th\u1ec3 trong kh\u00f4ng gian. Ngo\u00e0i ra c\u00f2n c\u00f3 m\u1ed9t v\u00f2ng n\u00e2ng \u1edf ph\u00eda tr\u00ean c\u1ee7a m\u00e1y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c treo \u1edf b\u1ea5t k\u1ef3 v\u1ecb tr\u00ed n\u00e0o. Do \u0111\u00f3, n\u00f3 ph\u00f9 h\u1ee3p \u0111\u1ec3 x\u1eed l\u00fd ph\u00f4i l\u1edbn v\u00e0 v\u1eeba trong s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t v\u00e0 nh\u1ecf.<\/div>\n

D\u1ee5ng c\u1ee5 khoan<\/h2>\n

khoan xo\u1eafn<\/h3>\n

K\u1ebft c\u1ea5u m\u00e1y khoan xo\u1eafn<\/h4>\n
M\u0169i khoan xo\u1eafn bao g\u1ed3m ba ph\u1ea7n: ph\u1ea7n l\u00e0m vi\u1ec7c, c\u1ed5 v\u00e0 tay c\u1ea7m.<\/div>\n
(1) Ph\u1ea7n l\u00e0m vi\u1ec7c: Ph\u1ea7n l\u00e0m vi\u1ec7c c\u1ee7a m\u00e1y khoan xo\u1eafn c\u00f3 hai r\u00e3nh xo\u1eafn \u1ed1c, v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a n\u00f3 r\u1ea5t gi\u1ed1ng v\u1edbi h\u00ecnh d\u1ea1ng c\u1ee7a xo\u1eafn. N\u00f3 l\u00e0 ph\u1ea7n ch\u00ednh c\u1ee7a m\u0169i khoan v\u00e0 bao g\u1ed3m m\u1ed9t ph\u1ea7n c\u1eaft v\u00e0 ph\u1ea7n d\u1eabn h\u01b0\u1edbng.<\/div>\n

\u00a0X\u1eed l\u00fd<\/h4>\n

Tay c\u1ea7m l\u00e0 b\u1ed9 ph\u1eadn k\u1eb9p c\u1ee7a m\u0169i khoan, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u00e1y c\u00f4ng c\u1ee5 v\u00e0 truy\u1ec1n m\u00f4-men xo\u1eafn v\u00e0 l\u1ef1c d\u1ecdc tr\u1ee5c trong qu\u00e1 tr\u00ecnh khoan. Tay c\u1ea7m c\u1ee7a m\u00e1y khoan xo\u1eafn c\u00f3 hai lo\u1ea1i th\u00e2n c\u00f4n v\u00e0 th\u00e2n th\u1eb3ng. V\u1ecf th\u1eb3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u1ee7 y\u1ebfu cho m\u00e1y khoan xo\u1eafn nh\u1ecf c\u00f3 \u0111\u01b0\u1eddng k\u00ednh d\u01b0\u1edbi 12 mm. Th\u00e2n c\u00f4n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c m\u0169i khoan xo\u1eafn c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u00e8n tr\u1ef1c ti\u1ebfp v\u00e0o l\u1ed7 c\u00f4n tr\u1ee5c ch\u00ednh ho\u1eb7c ch\u00e8n v\u00e0o l\u1ed7 c\u00f4n tr\u1ee5c ch\u00ednh th\u00f4ng qua \u1ed1ng c\u00f4n. \u0110u\u00f4i ph\u1eb3ng c\u1ee7a th\u00e2n c\u00f4n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 truy\u1ec1n m\u00f4-men xo\u1eafn v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 d\u1ec5 d\u00e0ng lo\u1ea1i b\u1ecf m\u0169i khoan.<\/p>\n

C\u00e1i c\u1ed5<\/h4>\n
R\u00e3nh c\u1ed5 c\u1ee7a m\u0169i khoan xo\u1eafn l\u00e0 r\u00e3nh qu\u00e1 l\u1edbn c\u1ee7a b\u00e1nh m\u00e0i khi m\u00e0i tay c\u1ea7m c\u1ee7a m\u0169i khoan. \u0110\u00e1y c\u1ee7a r\u00e3nh th\u01b0\u1eddng \u0111\u01b0\u1ee3c kh\u1eafc v\u1edbi c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 d\u1ea5u hi\u1ec7u nh\u00e0 m\u00e1y c\u1ee7a m\u0169i khoan. M\u0169i khoan th\u1eb3ng kh\u00f4ng c\u00f3 c\u1ed5.<\/div>\n
Th\u00e0nh ph\u1ea7n c\u1ee7a ph\u1ea7n c\u1eaft<\/div>\n
B\u1ed9 ph\u1eadn c\u1eaft ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho c\u00f4ng vi\u1ec7c c\u1eaft v\u00e0 bao g\u1ed3m hai m\u1eb7t tr\u01b0\u1edbc, m\u1eb7t sau ch\u00ednh, m\u1eb7t sau, c\u1ea1nh c\u1eaft ch\u00ednh, c\u1ea1nh c\u1eaft nh\u1ecf v\u00e0 c\u1ea1nh \u0111\u1ee5c. C\u1ea1nh \u0111\u1ee5c l\u00e0 c\u1ea1nh \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh b\u1edfi giao \u0111i\u1ec3m c\u1ee7a hai ngu\u1ed3n ch\u00ednh, v\u00e0 m\u1eb7t sau l\u00e0 hai \u0111ai c\u1ee7a m\u0169i khoan, \u0111\u1ed1i di\u1ec7n v\u1edbi th\u00e0nh l\u1ed7 ph\u00f4i (t\u1ee9c l\u00e0 b\u1ec1 m\u1eb7t gia c\u00f4ng) khi l\u00e0m vi\u1ec7c, nh\u01b0 \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb.<\/div>\n
Ph\u1ea7n d\u1eabn h\u01b0\u1edbng l\u00e0 m\u1ed9t h\u00e0nh \u0111\u1ed9ng h\u01b0\u1edbng d\u1eabn khi ph\u1ea7n c\u1eaft \u0111\u01b0\u1ee3c c\u1eaft v\u00e0o ph\u00f4i, v\u00e0 c\u0169ng l\u00e0 ph\u1ea7n m\u00e0i c\u1ee7a ph\u1ea7n c\u1eaft. \u0110\u1ec3 gi\u1ea3m ma s\u00e1t gi\u1eefa ph\u1ea7n d\u1eabn h\u01b0\u1edbng v\u00e0 th\u00e0nh c\u1ee7a l\u1ed7, \u0111\u01b0\u1eddng k\u00ednh ngo\u00e0i (ngh\u0129a l\u00e0 tr\u00ean hai m\u1eb7t \u0111\u1ea5t) \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t v\u1edbi h\u00ecnh n\u00f3n ng\u01b0\u1ee3c (0,03 - 0,12) \/ 100. (0,03 \u0111\u1ebfn 0,12 \u0111\u1ed9 c\u00f4n ng\u01b0\u1ee3c tr\u00ean m\u1ed7i Chi\u1ec1u d\u00e0i 100mm)<\/div>\n
Ngo\u00e0i ra, \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng c\u1ee7a m\u0169i khoan, \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a l\u00f5i gi\u1eefa hai l\u01b0\u1ee1i c\u1ee7a ph\u1ea7n l\u00e0m vi\u1ec7c \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh m\u1ed9t \u0111\u1ed9 c\u00f4n d\u01b0\u01a1ng (1,4 \u0111\u1ebfn 1,8) \/ 100 theo h\u01b0\u1edbng d\u1ecdc tr\u1ee5c.<\/div>\n
(1) m\u1eb7t c\u00e0o: m\u1eb7t c\u00e0o l\u00e0 b\u1ec1 m\u1eb7t c\u1ee7a r\u00e3nh xo\u1eafn \u1ed1c, l\u00e0 d\u00f2ng ch\u1ea3y c\u1ee7a chip qua b\u1ec1 m\u1eb7t, ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t con chip v\u00e0 con chip. N\u00f3 c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u00e1nh b\u00f3ng \u0111\u1ec3 l\u00e0m cho vi\u1ec7c lo\u1ea1i b\u1ecf chip tr\u01a1n tru.<\/div>\n
(2) C\u00e1nh ch\u00ednh: M\u1eb7t s\u01b0\u1eddn ch\u00ednh \u0111\u1ed1i di\u1ec7n v\u1edbi b\u1ec1 m\u1eb7t gia c\u00f4ng v\u00e0 n\u1eb1m \u1edf \u0111\u1ea7u tr\u01b0\u1edbc c\u1ee7a m\u0169i khoan. H\u00ecnh d\u1ea1ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p m\u00e0i. N\u00f3 c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t b\u1ec1 m\u1eb7t xo\u1eafn \u1ed1c, m\u1ed9t b\u1ec1 m\u1eb7t h\u00ecnh n\u00f3n v\u00e0 m\u1ed9t b\u1ec1 m\u1eb7t ph\u1eb3ng, v\u00e0 b\u1ea5t k\u1ef3 b\u1ec1 m\u1eb7t n\u00e0o \u0111\u01b0\u1ee3c m\u00e0i b\u1eb1ng tay.<\/div>\n
(3) S\u01b0\u1eddn ph\u1ee5: S\u01b0\u1eddn ph\u1ee5 l\u00e0 m\u1ed9t m\u1eb7t h\u1eb9p tr\u00ean b\u1ec1 m\u1eb7t h\u00ecnh tr\u1ee5 ngo\u00e0i c\u1ee7a m\u0169i khoan \u0111\u1ed1i di\u1ec7n v\u1edbi b\u1ec1 m\u1eb7t gia c\u00f4ng.<\/div>\n
(4) C\u1ea1nh c\u1eaft ch\u00ednh: C\u1ea1nh c\u1eaft ch\u00ednh l\u00e0 giao \u0111i\u1ec3m c\u1ee7a m\u1eb7t c\u00e0o (m\u1eb7t r\u00e3nh xo\u1eafn \u1ed1c) v\u00e0 m\u1eb7t s\u01b0\u1eddn ch\u00ednh. C\u1ea1nh xo\u1eafn ch\u00ednh c\u1ee7a m\u00e1y khoan xo\u1eafn ti\u00eau chu\u1ea9n l\u00e0 th\u1eb3ng (ho\u1eb7c g\u1ea7n nh\u01b0 th\u1eb3ng)<\/div>\n
(5) C\u1ea1nh c\u1eaft ph\u1ee5: C\u1ea1nh c\u1eaft nh\u1ecf l\u00e0 giao \u0111i\u1ec3m c\u1ee7a m\u1eb7t c\u00e0o (b\u1ec1 m\u1eb7t c\u1ee7a r\u00e3nh xo\u1eafn \u1ed1c) v\u00e0 m\u1eb7t s\u01b0\u1eddn ph\u1ee5 (m\u1eb7t h\u1eb9p), ngh\u0129a l\u00e0 c\u1ea1nh.<\/div>\n
(6) L\u01b0\u1ee1i c\u1eaft ngang: C\u1ea1nh \u0111\u1ee5c l\u00e0 giao \u0111i\u1ec3m c\u1ee7a hai m\u1eb7t s\u01b0\u1eddn ch\u00ednh, n\u1eb1m \u1edf \u0111\u1ea7u tr\u00ean c\u00f9ng c\u1ee7a m\u0169i khoan, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u0169i khoan.<\/div>\n

Th\u00f4ng s\u1ed1 h\u00ecnh h\u1ecdc c\u1ee7a m\u00e1y khoan xo\u1eafn<\/h4>\n

m\u1eb7t ph\u1eb3ng t\u1ecda \u0111\u1ed9<\/h5>\n
(1) M\u1eb7t ph\u1eb3ng c\u1eaft Ps: l\u00e0 m\u1eb7t ph\u1eb3ng bao g\u1ed3m h\u01b0\u1edbng t\u1ed1c \u0111\u1ed9 c\u1eaft t\u1ea1i \u0111i\u1ec3m n\u00e0y v\u00e0 ti\u1ebfp x\u00fac v\u1edbi b\u1ec1 m\u1eb7t c\u1eaft b\u1edfi c\u1ea1nh c\u1eaft t\u1ea1i \u0111i\u1ec3m n\u00e0y.<\/div>\n
(2) B\u1ec1 m\u1eb7t c\u01a1 s\u1edf Pr: B\u1ec1 m\u1eb7t c\u01a1 s\u1edf Pr c\u1ee7a \u0111i\u1ec3m \u0111\u01b0\u1ee3c ch\u1ecdn tr\u00ean c\u1ea1nh c\u1eaft ch\u00ednh c\u1ee7a m\u0169i khoan l\u00e0 m\u1eb7t ph\u1eb3ng \u0111i qua \u0111i\u1ec3m n\u00e0y v\u00e0 vu\u00f4ng g\u00f3c v\u1edbi t\u1ed1c \u0111\u1ed9 c\u1eaft t\u1ea1i \u0111i\u1ec3m \u0111\u00f3. B\u1ec1 m\u1eb7t c\u01a1 s\u1edf lu\u00f4n \u0111i qua tr\u1ee5c bit v\u00e0 vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng c\u1ee7a h\u01b0\u1edbng t\u1ed1c \u0111\u1ed9 c\u1eaft.<\/div>\n
g\u00f3c h\u00ecnh h\u1ecdc c\u1ee7a m\u0169i khoan<\/h5>\n
(1) G\u00f3c xo\u1eafn: \u0111\u01b0\u1eddng giao nhau gi\u1eefa b\u1ec1 m\u1eb7t r\u00e3nh xo\u1eafn \u1ed1c c\u1ee7a m\u0169i khoan v\u00e0 b\u1ec1 m\u1eb7t c\u1ee7a xylanh ngo\u00e0i l\u00e0 \u0111\u01b0\u1eddng xo\u1eafn \u1ed1c, v\u00e0 g\u00f3c gi\u1eefa \u0111\u01b0\u1eddng xo\u1eafn \u1ed1c v\u00e0 tr\u1ee5c c\u1ee7a m\u0169i khoan \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u01b0\u1eddng xo\u1eafn \u1ed1c g\u00f3c c\u1ee7a m\u0169i khoan, v\u00e0 \u0111\u01b0\u1ee3c ghi l\u00e0. (Tham kh\u1ea3o s\u00e1ch gi\u00e1o khoa)<\/div>\n
(2) g\u00f3c c\u1ea1nh v\u00e0 \u0111\u1ed9 nghi\u00eang c\u1ee7a m\u1eb7t cu\u1ed1i<\/div>\n
Do c\u1ea1nh c\u1eaft ch\u00ednh kh\u00f4ng \u0111i qua \u0111\u01b0\u1eddng tr\u1ee5c, g\u00f3c nghi\u00eang c\u1ee7a l\u01b0\u1ee1i \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh. \u0110\u1ed1i v\u1edbi m\u1ed7i \u0111i\u1ec3m tr\u00ean c\u1ea1nh c\u1eaft, g\u00f3c nghi\u00eang c\u1ee7a l\u01b0\u1ee1i dao c\u0169ng kh\u00e1c nhau, ch\u1ee7 y\u1ebfu l\u00e0 do b\u1ec1 m\u1eb7t \u0111\u1ebf c\u1ee7a m\u1ed7i \u0111i\u1ec3m kh\u00e1c v\u1edbi m\u1eb7t ph\u1eb3ng c\u1eaft. \u0110\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho vi\u1ec7c m\u00f4 t\u1ea3 kh\u00e1i ni\u1ec7m, ch\u00fang t\u00f4i gi\u1edbi thi\u1ec7u kh\u00e1i ni\u1ec7m v\u1ec1 \u0111\u1ed9 nghi\u00eang c\u1ee7a l\u01b0\u1ee1i m\u1eb7t.<\/div>\n
\u2022 G\u00f3c c\u00e0o m\u1eb7t: G\u00f3c c\u1ee7a m\u1eb7t cu\u1ed1i c\u1ee7a \u0111i\u1ec3m \u0111\u00e3 ch\u1ecdn tr\u00ean c\u1ea1nh c\u1eaft ch\u00ednh l\u00e0 g\u00f3c gi\u1eefa b\u1ec1 m\u1eb7t c\u01a1 s\u1edf c\u1ee7a \u0111i\u1ec3m \u0111\u01b0\u1ee3c \u0111o trong ch\u1ebf \u0111\u1ed9 chi\u1ebfu cu\u1ed1i v\u00e0 c\u1ea1nh c\u1eaft ch\u00ednh. \u0110\u1ed1i v\u1edbi c\u00e1c \u0111i\u1ec3m \u0111\u01b0\u1ee3c ch\u1ecdn kh\u00e1c nhau, g\u00f3c nghi\u00eang c\u1ee7a m\u1eb7t cu\u1ed1i c\u0169ng kh\u00e1c nhau v\u00e0 m\u1ee9c t\u1ed1i \u0111a \u1edf c\u1ea1nh ngo\u00e0i (gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u00e0 nh\u1ecf nh\u1ea5t) nh\u1ecf g\u1ea7n l\u00f5i (gi\u00e1 tr\u1ecb tuy\u1ec7t \u0111\u1ed1i l\u1edbn).<\/div>\n
(3) G\u00f3c tr\u00ean c\u00f9ng (ph\u00eda tr\u01b0\u1edbc) v\u00e0 g\u00f3c d\u1eabn:<\/div>\n
G\u00f3c \u0111\u1ec9nh c\u1ee7a m\u0169i khoan l\u00e0 g\u00f3c gi\u1eefa c\u00e1c h\u00ecnh chi\u1ebfu c\u1ee7a hai c\u1ea1nh c\u1eaft ch\u00ednh trong m\u1eb7t ph\u1eb3ng \u0111\u01b0\u1ee3c \u0111o trong m\u1eb7t ph\u1eb3ng song song v\u1edbi hai c\u1ea1nh c\u1eaft ch\u00ednh. Ghi l\u00e0 2\u03c6, khoan xo\u1eafn ti\u00eau chu\u1ea9n 2\u03c6 = 118 \u00b0<\/div>\n
G\u00f3c d\u1eabn l\u00e0 g\u00f3c gi\u1eefa h\u00ecnh chi\u1ebfu c\u1ee7a c\u1ea1nh c\u1eaft ch\u00ednh v\u00e0 h\u01b0\u1edbng n\u1ea1p \u0111\u01b0\u1ee3c \u0111o trong b\u1ec1 m\u1eb7t c\u01a1 s\u1edf, k\u00fd hi\u1ec7u l\u00e0 \u03barx. Do c\u00e1c m\u1eb7t c\u01a1 s\u1edf c\u1ee7a c\u00e1c \u0111i\u1ec3m tr\u00ean c\u1ea1nh c\u1eaft ch\u00ednh l\u00e0 kh\u00e1c nhau, n\u00ean c\u00e1c g\u00f3c t\u1eaft ch\u00ednh t\u1ea1i c\u00e1c \u0111i\u1ec3m t\u01b0\u01a1ng \u1ee9ng c\u0169ng kh\u00e1c nhau.<\/div>\n
(4) G\u00f3c tr\u01b0\u1edbc: G\u00f3c c\u00e0o c\u1ee7a \u0111i\u1ec3m \u0111\u00e3 ch\u1ecdn tr\u00ean c\u1ea1nh c\u1eaft ch\u00ednh \u0111\u01b0\u1ee3c \u0111o trong m\u1eb7t ph\u1eb3ng tr\u1ef1c giao c\u1ee7a \u0111i\u1ec3m.<\/div>\n
T\u00e0i li\u1ec7u tham kh\u1ea3o<\/div>\n
(5) G\u00f3c quay l\u1ea1i: G\u00f3c ph\u00f9 \u0111i\u00eau \u0111\u00e3 ch\u1ecdn tr\u00ean c\u1ea1nh c\u1eaft ch\u00ednh \u0111\u01b0\u1ee3c \u0111o trong m\u1eb7t ph\u1eb3ng ti\u1ebfp tuy\u1ebfn v\u1edbi tr\u1ee5c bit l\u00e0 tr\u1ee5c v\u00e0 \u0111i qua b\u1ec1 m\u1eb7t h\u00ecnh tr\u1ee5 t\u1ea1i \u0111i\u1ec3m \u0111\u00f3, k\u00fd hi\u1ec7u l\u00e0 \u03b1f.<\/div>\n
Th\u1ee9 ba, c\u00e1c m\u0169i khoan kh\u00e1c<\/div>\n

M\u0169i khoan xo\u1eafn<\/h3>\n
Khi gia c\u00f4ng c\u00e1c v\u1eadt li\u1ec7u c\u1ee9ng v\u00e0 gi\u00f2n, vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y khoan cacbua c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 hi\u1ec7u qu\u1ea3 c\u1eaft.<\/div>\n
C\u00e1c m\u0169i khoan xo\u1eafn h\u1ee3p kim c\u1ee9ng sau \u0111\u00e2y \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o th\u00e0nh m\u1ed9t c\u1ea5u tr\u00fac nguy\u00ean kh\u1ed1i, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o th\u00e0nh m\u1ed9t m\u0169i khoan xo\u1eafn c\u1ee9ng cacbua th\u1eb3ng, c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t m\u0169i khoan xo\u1eafn xo\u1eafn c\u1ee9ng.<\/div>\n
So v\u1edbi m\u00e1y khoan xo\u1eafn th\u00e9p t\u1ed1c \u0111\u1ed9 cao, l\u00f5i c\u00f3 \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n, g\u00f3c xo\u1eafn nh\u1ecf h\u01a1n v\u00e0 ph\u1ea7n l\u00e0m vi\u1ec7c ng\u1eafn h\u01a1n. Th\u00e2n m\u00e1y c\u1eaft \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u00e9p h\u1ee3p kim 9SiCr v\u00e0 \u0111\u01b0\u1ee3c l\u00e0m c\u1ee9ng \u0111\u1ebfn 50-52HRC. C\u00e1c bi\u1ec7n ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 c\u1ee9ng v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1ee7a m\u0169i khoan \u0111\u1ec3 gi\u1ea3m s\u1ee9t m\u1ebb do rung \u0111\u1ed9ng trong qu\u00e1 tr\u00ecnh khoan.<\/div>\n
(2) Khoan l\u1ed7 s\u00e2u<\/div>\n
L\u1ed7 ch\u00e2n l\u00f4ng s\u00e2u th\u01b0\u1eddng n\u00f3i \u0111\u1ebfn l\u1ed7 ch\u00e2n l\u00f4ng c\u00f3 t\u1ef7 l\u1ec7 l\u1ed7 ch\u00e2n l\u00f4ng tr\u00ean \u0111\u01b0\u1eddng k\u00ednh l\u1edbn h\u01a1n 5 l\u1ea7n. Khi khoan l\u1ed7 s\u00e2u, c\u1ea7n ph\u1ea3i gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 ph\u00e1 v\u1ee1 chip v\u00e0 lo\u1ea1i b\u1ecf chip, l\u00e0m m\u00e1t v\u00e0 b\u00f4i tr\u01a1n, v\u00e0 h\u01b0\u1edbng d\u1eabn.<\/div>\n

m\u0169i khoan<\/h3>\n
M\u0169i khoan ban \u0111\u1ea7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho l\u1ed7 khoan c\u1ee7a n\u00f2ng s\u00fang, v\u00ec v\u1eady n\u00f3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u0169i khoan l\u1ed7 s\u00fang. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gia c\u00f4ng l\u1ed7 s\u00e2u \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf.<\/div>\n
1, c\u1ea5u tr\u00fac v\u00e0 nguy\u00ean t\u1eafc l\u00e0m vi\u1ec7c<\/div>\n
M\u0169i khoan bao g\u1ed3m m\u1ed9t b\u1ed9 ph\u1eadn c\u1eaft v\u00e0 \u1ed1ng khoan. Ph\u1ea7n c\u1eaft \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u00e9p t\u1ed1c \u0111\u1ed9 cao ho\u1eb7c h\u1ee3p kim c\u1ee9ng, v\u00e0 l\u00e0m cho s\u00e1o chip; \u1ed1ng khoan \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng \u1ed1ng th\u00e9p li\u1ec1n m\u1ea1ch, v\u00e0 s\u00e1o chip \u0111\u01b0\u1ee3c cu\u1ed9n s\u00e1t v\u1edbi m\u0169i khoan v\u00e0 \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a \u1ed1ng khoan nh\u1ecf h\u01a1n 0,5 ~ 1 mm so v\u1edbi \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a m\u0169i khoan. Ch\u00fang \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau b\u1eb1ng h\u00e0n v\u00e0 s\u00e1o chip \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh trong qu\u00e1 tr\u00ecnh h\u00e0n.<\/div>\n
Nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c: ph\u00f4i quay trong khi khoan v\u00e0 c\u1ea5p li\u1ec7u cho m\u0169i khoan. Ch\u1ea5t l\u1ecfng c\u1eaft \u0111\u01b0\u1ee3c b\u01a1m v\u00e0o v\u00f9ng c\u1eaft t\u1eeb l\u1ed7 b\u00ean trong c\u1ee7a \u1ed1ng khoan v\u00e0 l\u1ed7 \u0111\u1ea7u v\u00e0o d\u1ea7u c\u1ee7a ph\u1ea7n c\u1eaft b\u1eb1ng \u00e1p su\u1ea5t cao \u0111\u1ec3 l\u00e0m m\u00e1t v\u00e0 b\u00f4i tr\u01a1n v\u00e0 phoi \u0111\u01b0\u1ee3c tu\u00f4n ra t\u1eeb s\u00e1o chip. V\u00ec c\u00e1c chip \u0111\u01b0\u1ee3c th\u1ea3i ra t\u1eeb b\u00ean ngo\u00e0i m\u0169i khoan, ch\u00fang \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 chip ngo\u00e0i.<\/div>\n
2, \u0111\u1eb7c \u0111i\u1ec3m<\/div>\n
(1) Do ch\u1ea5t l\u1ecfng c\u1eaft \u0111i v\u00e0o v\u00e0 tho\u00e1t ra ri\u00eang bi\u1ec7t, ch\u1ea5t l\u1ecfng c\u1eaft kh\u00f4ng b\u1ecb x\u00e1o tr\u1ed9n d\u01b0\u1edbi \u00e1p su\u1ea5t cao v\u00e0 d\u1ec5 d\u00e0ng \u0111\u1ebfn khu v\u1ef1c c\u1eaft, gi\u1ea3i quy\u1ebft t\u1ed1t h\u01a1n v\u1ea5n \u0111\u1ec1 l\u00e0m m\u00e1t v\u00e0 b\u00f4i tr\u01a1n khi khoan l\u1ed7 s\u00e2u;<\/div>\n
(2) V\u00ec l\u01b0\u1ee1i c\u1eaft \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c c\u1ea1nh c\u1eaft b\u00ean trong v\u00e0 b\u00ean ngo\u00e0i, v\u00e0 l\u01b0\u1ee1i c\u1eaft c\u00f3 \u0111\u1ed9 l\u1ec7ch t\u00e2m e, h\u00e0nh \u0111\u1ed9ng s\u1ee9t m\u1ebb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong qu\u00e1 tr\u00ecnh c\u1eaft, c\u00e1c con chip b\u1ecb thu h\u1eb9p v\u00e0 ch\u1ea5t l\u1ecfng c\u1eaft thu\u1eadn ti\u1ec7n cho vi\u1ec7c d\u1eadp phoi , do \u0111\u00f3 vi\u1ec7c x\u1ea3 chip l\u00e0 d\u1ec5 d\u00e0ng;<\/div>\n
(3) Do c\u1ed9t l\u00f5i c\u00f3 \u0111\u01b0\u1eddng k\u00ednh 2h c\u00f2n l\u1ea1i sau khi khoan, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ec1 m\u1eb7t h\u1ed7 tr\u1ee3 c\u1ee7a m\u0169i khoan lu\u00f4n ti\u1ebfp x\u00fac g\u1ea7n v\u1edbi th\u00e0nh c\u1ee7a l\u1ed7, do \u0111\u00f3 m\u0169i khoan c\u00f3 m\u1ed9t h\u01b0\u1edbng d\u1eabn \u0111\u00e1ng tin c\u1eady v\u00e0 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 h\u01b0\u1edbng d\u1eabn khoan l\u1ed7 s\u00e2u.<\/div>\n
Th\u1ee9 hai, khoan n\u1ed9i b\u1ed9 lo\u1ea1i b\u1ecf l\u1ed7 s\u00e2u<\/div>\n
M\u0169i khoan bao g\u1ed3m th\u00e2n m\u00e1y khoan, ba c\u1ea1nh c\u1eaft \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed5 tr\u00ean c\u00e1c chu vi kh\u00e1c nhau v\u00e0 hai kh\u1ed1i d\u1eabn h\u01b0\u1edbng.<\/div>\n
Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh, ch\u1ea5t l\u1ecfng c\u1eaft \u00e1p su\u1ea5t cao \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn khu v\u1ef1c c\u1eaft t\u1eeb khe h\u1edf gi\u1eefa \u1ed1ng khoan v\u00e0 th\u00e0nh l\u1ed7 \u0111\u1ec3 l\u00e0m m\u00e1t v\u00e0 b\u00f4i tr\u01a1n. \u0110\u1ed3ng th\u1eddi, c\u00e1c con chip \u0111\u01b0\u1ee3c tu\u00f4n ra t\u1eeb l\u1ed7 chip b\u00ean trong c\u1ee7a m\u0169i khoan v\u00e0 l\u1ed7 b\u00ean trong c\u1ee7a \u1ed1ng khoan.<\/div>\n
M\u0169i khoan s\u00e2u n\u00e0y, b\u1edfi v\u00ec ba chi\u1ebfc r\u0103ng \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed tr\u00ean c\u00e1c chu vi kh\u00e1c nhau, ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t con chip \u0111\u1ec3 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho vi\u1ec7c di chuy\u1ec3n chip. H\u01a1n n\u1eefa, khi c\u00e1c con chip \u0111\u01b0\u1ee3c th\u1ea3i ra, ch\u00fang kh\u00f4ng c\u1ecd s\u00e1t v\u00e0o b\u1ec1 m\u1eb7t gia c\u00f4ng, do \u0111\u00f3 hi\u1ec7u qu\u1ea3 s\u1ea3n xu\u1ea5t v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng x\u1eed l\u00fd cao h\u01a1n so v\u1edbi chip b\u00ean ngo\u00e0i. C\u1ea5u tr\u00fac n\u00e0y kh\u00f4ng c\u00f3 c\u1ea1nh \u0111\u1ee5c, l\u00e0m gi\u1ea3m l\u1ef1c d\u1ecdc tr\u1ee5c. L\u1ef1c chu vi kh\u00f4ng c\u00e2n b\u1eb1ng v\u00e0 l\u1ef1c h\u01b0\u1edbng t\u00e2m \u0111\u01b0\u1ee3c nh\u1eadn b\u1edfi kh\u1ed1i d\u1eabn h\u01b0\u1edbng tr\u00ean chu vi, v\u00e0 khoan l\u1ed7 s\u00e2u c\u00f3 \u0111\u1eb7c t\u00ednh d\u1eabn h\u01b0\u1edbng t\u1ed1t h\u01a1n.<\/div>\n

M\u0169i khoan<\/h3>\n
M\u0169i khoan bao g\u1ed3m ba ph\u1ea7n: m\u0169i khoan, \u1ed1ng trong v\u00e0 \u1ed1ng ngo\u00e0i.<\/div>\n
Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh, 2\/3 ch\u1ea5t l\u1ecfng c\u1eaft \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o v\u00f9ng c\u1eaft th\u00f4ng qua khe h\u1edf gi\u1eefa c\u00e1c \u1ed1ng b\u00ean trong v\u00e0 b\u00ean ngo\u00e0i \u0111\u1ec3 l\u00e0m m\u00e1t v\u00e0 b\u00f4i tr\u01a1n. 1\/3 c\u00f2n l\u1ea1i c\u1ee7a ch\u1ea5t l\u1ecfng c\u1eaft \u0111\u01b0\u1ee3c phun v\u00e0o \u1ed1ng th\u00f4ng qua khe h\u1eb9p c\u1ee7a r\u00e3nh l\u01b0\u1ee1i li\u1ec1m tr\u00ean th\u00e0nh \u1ed1ng b\u00ean trong, do \u0111\u00f3 ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t gi\u1eefa \u0111\u1ea7u tr\u01b0\u1edbc v\u00e0 \u0111\u1ea7u sau c\u1ee7a \u1ed1ng b\u00ean trong t\u1ea1o ra l\u1ef1c h\u00fat h\u00fat \u0110\u1ec3 t\u0103ng t\u1ed1c \u0111\u1ed9 x\u1ea3 ch\u1ea5t l\u1ecfng c\u1eaft v\u00e0 chip.<\/div>\n<\/div>\n<\/div>\n

<\/p>","protected":false},"excerpt":{"rendered":"

Drilling machine is a machine tool for machining internal holes. It is used to machine holes in solid materials. It is mainly used for machining workpieces with complex shapes and without symmetrical rotation axes, such as single holes on parts such as levers, covers, boxes and frames. Hole system. The drilling is rough machining. \u2022…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[79],"tags":[],"class_list":["post-1829","post","type-post","status-publish","format-standard","hentry","category-materials-weekly"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/1829","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/comments?post=1829"}],"version-history":[{"count":0,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/posts\/1829\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/media?parent=1829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/categories?post=1829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.meetyoucarbide.com\/vi\/wp-json\/wp\/v2\/tags?post=1829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}