{"id":1834,"date":"2026-03-28T00:35:09","date_gmt":"2026-03-27T17:35:09","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/chon-vat-lieu-dao-cat-khuon-dap-inox-de-toi-uu-tuoi-tho\/"},"modified":"2026-03-28T00:35:09","modified_gmt":"2026-03-27T17:35:09","slug":"chon-vat-lieu-dao-cat-khuon-dap-inox-de-toi-uu-tuoi-tho","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/chon-vat-lieu-dao-cat-khuon-dap-inox-de-toi-uu-tuoi-tho\/","title":{"rendered":"Ch\u1ecdn v\u1eadt li\u1ec7u dao c\u1eaft, khu\u00f4n d\u1eadp Inox \u0111\u1ec3 t\u1ed1i \u01b0u tu\u1ed5i th\u1ecd"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-vi-sao-inox-an-dao-va-di-khuon\">V\u00ec sao Inox \u201c\u0103n\u201d dao v\u00e0 \u201cd\u00ed\u201d khu\u00f4n?<\/a><\/li>\n<li><a href=\"#toc-1-phan-loai-inox-va-do-kho-gia-cong-anh-huong-den-ch\">Ph\u00e2n lo\u1ea1i Inox v\u00e0 \u0111\u1ed9 kh\u00f3 gia c\u00f4ng (\u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ecdn v\u1eadt li\u1ec7u)<\/a><\/li>\n<li><a href=\"#toc-2-dao-cat-cho-tienphaykhoantaro-inox-nen-dung-vat-li\">Dao c\u1eaft cho ti\u1ec7n\/phay\/khoan\/taro Inox: N\u00ean d\u00f9ng v\u1eadt li\u1ec7u n\u00e0o?<\/a><\/li>\n<li><a href=\"#toc-3-khuon-dap-inox-chon-vat-lieu-thep-khuon-nao-de-it-\">Khu\u00f4n d\u1eadp Inox: Ch\u1ecdn v\u1eadt li\u1ec7u th\u00e9p khu\u00f4n n\u00e0o \u0111\u1ec3 \u00edt d\u00ednh b\u00e1m, \u00edt m\u1ebb c\u1ea1nh?<\/a><\/li>\n<li><a href=\"#toc-4-thong-so-thuc-hanh-khuyen-nghi-tham-khao\">Th\u00f4ng s\u1ed1 th\u1ef1c h\u00e0nh khuy\u1ebfn ngh\u1ecb (tham kh\u1ea3o)<\/a><\/li>\n<li><a href=\"#toc-5-checklist-nhanh-chon-vat-lieu-va-phu-de-tang-tuoi-\">Checklist nhanh ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 ph\u1ee7 \u0111\u1ec3 t\u0103ng tu\u1ed5i th\u1ecd<\/a><\/li>\n<li><a href=\"#toc-6-case-study-ngan-tang-3-tuoi-tho-khi-dot-304-t2-mm\">Case study ng\u1eafn: T\u0103ng 3\u00d7 tu\u1ed5i th\u1ecd khi \u0111\u1ed9t 304 t=2 mm<\/a><\/li>\n<li><a href=\"#toc-7-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-8-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Gia c\u00f4ng Inox (th\u00e9p kh\u00f4ng g\u1ec9) lu\u00f4n \u0111\u00f2i h\u1ecfi v\u1eadt li\u1ec7u dao c\u1eaft v\u00e0 khu\u00f4n d\u1eadp chuy\u00ean bi\u1ec7t \u0111\u1ec3 ch\u1ed1ng d\u00ednh b\u00e1m (galling), h\u00f3a b\u1ec1n ngu\u1ed9i v\u00e0 m\u00e0i m\u00f2n d\u00ednh. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p h\u01b0\u1edbng d\u1eabn ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 l\u1edbp ph\u1ee7 cho dao c\u1eaft, khu\u00f4n d\u1eadp Inox nh\u1eb1m k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5, gi\u1ea3m chi ph\u00ed\/ph\u00f4i, v\u00e0 n\u00e2ng n\u0103ng su\u1ea5t. Ch\u1ee7 \u0111\u1ec1 n\u00e0y l\u00e0 m\u1eaft x\u00edch quan tr\u1ecdng trong chu\u1ed7i k\u1ef9 thu\u1eadt C\u1eaft\u2013Ch\u1ea5n\u2013D\u1eadp\u2013L\u1ed1c Inox.<\/p>\n<h2 id=\"toc-0-vi-sao-inox-an-dao-va-di-khuon\">V\u00ec sao Inox \u201c\u0103n\u201d dao v\u00e0 \u201cd\u00ed\u201d khu\u00f4n?<\/h2>\n<p>&#8211; D\u1eabn nhi\u1ec7t k\u00e9m: nhi\u1ec7t t\u1eadp trung t\u1ea1i l\u01b0\u1ee1i c\u1eaft\/bi\u00ean d\u1eadp \u2192 qu\u00e1 nhi\u1ec7t c\u1ea1nh c\u1eaft.<br \/>\n&#8211; H\u00f3a b\u1ec1n ngu\u1ed9i m\u1ea1nh (nh\u1ea5t l\u00e0 austenitic 304\/316): v\u00f9ng \u0111\u00e3 bi\u1ebfn d\u1ea1ng tr\u1edf n\u00ean c\u1ee9ng h\u01a1n \u2192 l\u1ef1c c\u1eaft t\u0103ng d\u1ea7n, sinh bavia, l\u1eb9o dao.<br \/>\n&#8211; Xu h\u01b0\u1edbng d\u00ednh b\u00e1m\/galling: b\u1ec1 m\u1eb7t Inox \u201ck\u1eb9o\u201d l\u00ean d\u1ee5ng c\u1ee5, g\u00e2y s\u1ecdc, s\u1ee9t m\u1ebb v\u00e0 m\u00f2n d\u00ednh nhanh.<br \/>\nH\u1ec7 qu\u1ea3: ph\u1ea3i ch\u1ecdn v\u1eadt li\u1ec7u d\u1ee5ng c\u1ee5 c\u00f3 \u0111\u1ed9 b\u1ec1n n\u00f3ng, \u0111\u1ed9 d\u1ebbo dai v\u00e0 ch\u1ed1ng d\u00ednh b\u00e1m ph\u00f9 h\u1ee3p; k\u1ebft h\u1ee3p h\u00ecnh h\u1ecdc, khe h\u1edf, l\u1edbp ph\u1ee7 v\u00e0 b\u00f4i tr\u01a1n t\u1ed1i \u01b0u [1].<\/p>\n<h2 id=\"toc-1-phan-loai-inox-va-do-kho-gia-cong-anh-huong-den-ch\">Ph\u00e2n lo\u1ea1i Inox v\u00e0 \u0111\u1ed9 kh\u00f3 gia c\u00f4ng (\u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ecdn v\u1eadt li\u1ec7u)<\/h2>\n<p>&#8211; Austenitic (304, 316): kh\u00f3 nh\u1ea5t, h\u00f3a b\u1ec1n ngu\u1ed9i m\u1ea1nh, d\u00ednh b\u00e1m cao.<br \/>\n&#8211; Ferritic (409, 430): d\u1ec5 h\u01a1n austenitic; d\u00ednh b\u00e1m trung b\u00ecnh.<br \/>\n&#8211; Martensitic (410, 420): c\u1ee9ng sau t\u00f4i; gia c\u00f4ng \u1edf tr\u1ea1ng th\u00e1i \u1ee7\/t\u00f4i ram; c\u00f3 th\u1ec3 ti\u1ec7n ngu\u1ed9i c\u1ee9ng b\u1eb1ng CBN.<br \/>\n&#8211; Duplex (2205): b\u1ec1n cao, c\u1ee9ng v\u00e0 d\u1ebbo dai \u2192 r\u1ea5t \u201ckh\u00f3 nh\u1eb1n\u201d.<\/p>\n<h2 id=\"toc-2-dao-cat-cho-tienphaykhoantaro-inox-nen-dung-vat-li\">Dao c\u1eaft cho ti\u1ec7n\/phay\/khoan\/taro Inox: N\u00ean d\u00f9ng v\u1eadt li\u1ec7u n\u00e0o?<\/h2>\n<h3>1) Th\u00e9p gi\u00f3 HSS, HSS-E (cobalt) v\u00e0 HSS b\u1ed9t PM-HSS<\/h3>\n<p>Khi d\u00f9ng<br \/>\n&#8211; D\u00f9ng cho: khoan, taro (c\u1eaft\/rolling), doa, phay\/taro ren nh\u1ecf; m\u00e1y c\u00f4ng su\u1ea5t v\u1eeba; chi ti\u1ebft m\u1ecfng ho\u1eb7c k\u1eb9p ch\u1eb7t kh\u00f3.<br \/>\n&#8211; \u01afu \u0111i\u1ec3m: d\u1ebbo dai cao, ch\u1ecbu va \u0111\u1eadp, \u00edt m\u1ebb c\u1ea1nh; ph\u00f9 h\u1ee3p khi c\u1ea7n l\u01b0\u1ee1i c\u1eaft r\u1ea5t s\u1eafc, rake d\u01b0\u01a1ng l\u1edbn \u0111\u1ec3 gi\u1ea3m h\u00f3a b\u1ec1n ngu\u1ed9i.<br \/>\n&#8211; Khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; M2 (SKH51) cho c\u00f4ng vi\u1ec7c ti\u00eau chu\u1ea9n; M35 (5% Co) ho\u1eb7c M42 (8% Co) khi c\u1ea7n b\u1ec1n n\u00f3ng h\u01a1n.<br \/>\n  &#8211; PM-HSS (ASP23\/Vanadis 23, ASP30) cho tu\u1ed5i th\u1ecd cao h\u01a1n HSS th\u01b0\u1eddng 1,5\u20133 l\u1ea7n nh\u1edd vi c\u1ea5u tr\u00fac \u0111\u1ed3ng \u0111\u1ec1u.<br \/>\n  &#8211; Ph\u1ee7 PVD TiAlN\/AlCrN\/TiCN \u0111\u1ec3 gi\u1ea3m d\u00ednh b\u00e1m v\u00e0 t\u0103ng b\u1ec1n n\u00f3ng. CrN\/ZrN t\u1ed1t khi c\u1eaft kh\u00f4 v\u1eadt li\u1ec7u m\u1ecfng.<br \/>\n  &#8211; Khoan 304 \u00d810 mm: vc 12\u201320 m\/ph\u00fat; f 0,08\u20130,20 mm\/v\u00f2ng; l\u00e0m m\u00e1t nh\u0169 t\u01b0\u01a1ng 8\u201312% EP, \u00e1p su\u1ea5t cao n\u1ebfu c\u00f3 [1].<br \/>\n  &#8211; Taro 304: d\u00f9ng HSS-E\/PM-HSS, ph\u1ee7 TiN\/TiCN ho\u1eb7c DLC cho taro l\u0103n; t\u1ed1c \u0111\u1ed9 5\u201310 m\/ph\u00fat, d\u00f9ng d\u1ea7u c\u1eaft ch\u1ee9a EP cao.<\/p>\n<h3>2) Carbide (WC\u2013Co) h\u1ea1t m\u1ecbn cho ISO M<\/h3>\n<p>Khi d\u00f9ng<br \/>\n&#8211; D\u00f9ng cho: ti\u1ec7n\/phay\/khoan t\u1ed1c \u0111\u1ed9 cao; l\u00f4 h\u00e0ng l\u1edbn; y\u00eau c\u1ea7u n\u0103ng su\u1ea5t.<br \/>\n&#8211; \u01afu \u0111i\u1ec3m: b\u1ec1n n\u00f3ng v\u01b0\u1ee3t tr\u1ed9i, gi\u1eef s\u1eafc c\u1ea1nh t\u1ed1t; n\u1ebfu ch\u1ecdn n\u1ec1n h\u1ea1t m\u1ecbn + cobalt cao (10\u201312%) s\u1ebd d\u1ebbo dai \u0111\u1ee7 cho Inox.<br \/>\n&#8211; Khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; Ch\u1ecdn c\u1ea5p ISO M20\u2013M30, n\u1ec1n carbide h\u1ea1t si\u00eau m\u1ecbn + PVD AlTiN\/AlCrN\/TiAlN (multi-layer) ch\u1ed1ng m\u00f2n d\u00ednh; ZrN h\u1eefu \u00edch khi c\u1ea7n b\u1ec1 m\u1eb7t s\u00e1ng, d\u00ednh b\u00e1m cao.<br \/>\n  &#8211; Edge prep microhone 10\u201320 \u00b5m \u0111\u1ec3 ch\u1ed1ng m\u1ebb vi m\u00f4 nh\u01b0ng v\u1eabn gi\u1eef \u201cs\u1eafc\u201d; rake d\u01b0\u01a1ng; phoi tho\u00e1t d\u1ec5.<br \/>\n  &#8211; Phay 304 b\u1eb1ng dao phay ng\u00f3n \u00d810 mm: vc 80\u2013140 m\/ph\u00fat; fz 0,05\u20130,12 mm\/r\u0103ng; \u0103n ph\u00f4i m\u1ecfng theo h\u01b0\u1edbng k\u00ednh (ae 10\u201325% D) v\u00e0 l\u1edbn theo tr\u1ee5c (ap 1\u20131,5 D) \u0111\u1ec3 gi\u1ea3m ma s\u00e1t s\u01b0\u1eddn [1].<br \/>\n  &#8211; Ti\u1ec7n 304: vc 80\u2013150 m\/ph\u00fat; f 0,15\u20130,35 mm\/v\u00f2ng; m\u0169i dao m\u1ea3nh, g\u00f3c tr\u01b0\u1edbc d\u01b0\u01a1ng; s\u1eed d\u1ee5ng dung d\u1ecbch l\u00e0m m\u00e1t \u00e1p cao \u0111\u1ec3 c\u1eaft l\u1eb9o.<br \/>\n  &#8211; Khoan carbide xuy\u00ean t\u00e2m l\u00e0m m\u00e1t: vc 50\u201380 m\/ph\u00fat cho 304; t\u0103ng l\u00ean 80\u2013120 m\/ph\u00fat v\u1edbi 430; f 0,12\u20130,30 mm\/v\u00f2ng theo \u0111\u01b0\u1eddng k\u00ednh.<\/p>\n<h3>3) Cermet, ceramic, CBN, PCD<\/h3>\n<p>&#8211; Cermet: ch\u1ec9 ph\u00f9 h\u1ee3p tinh gia c\u00f4ng ferritic\/martensitic m\u1ec1m; d\u1ec5 s\u1ee9t khi va \u0111\u1eadp v\u00e0 s\u1ed1c nhi\u1ec7t \u1edf austenitic.<br \/>\n&#8211; Ceramic: kh\u00f4ng khuy\u1ebfn kh\u00edch cho austenitic\/duplex do s\u1ed1c nhi\u1ec7t; d\u00f9ng h\u1ea1n ch\u1ebf cho t\u1ed1c \u0111\u1ed9 r\u1ea5t cao \u1edf b\u1ec1 m\u1eb7t \u1ed5n \u0111\u1ecbnh.<br \/>\n&#8211; CBN: d\u00f9ng hi\u1ec7u qu\u1ea3 cho martensitic \u0111\u00e3 t\u00f4i > 50 HRC (v\u00ed d\u1ee5 420 c\u1ee9ng) \u1edf ti\u1ec7n tinh.<br \/>\n&#8211; PCD: kh\u00f4ng d\u00f9ng cho v\u1eadt li\u1ec7u ch\u1ee9a s\u1eaft (Fe) do ph\u1ea3n \u1ee9ng khu\u1ebfch t\u00e1n.<\/p>\n<h3>4) H\u00ecnh h\u1ecdc dao, l\u00e0m m\u00e1t, b\u1ec1 m\u1eb7t<\/h3>\n<p>&#8211; L\u01b0\u1ee1i c\u1eaft s\u1eafc, g\u00f3c tr\u01b0\u1edbc d\u01b0\u01a1ng l\u1edbn; bo vi\u1ec1n c\u1ea1nh nh\u1ecf (5\u201320 \u00b5m) v\u00e0 \u0111\u00e1nh b\u00f3ng m\u00e1ng tho\u00e1t phoi \u0111\u1ec3 h\u1ea1n ch\u1ebf b\u00e1m d\u00ednh.<br \/>\n&#8211; L\u00e0m m\u00e1t: \u01b0u ti\u00ean l\u00e0m m\u00e1t \u00e1p cao\/h\u01b0\u1edbng \u0111\u00edch; nh\u0169 t\u01b0\u01a1ng 8\u201312% v\u1edbi ph\u1ee5 gia EP; taro\/khoan s\u00e2u d\u00f9ng d\u1ea7u c\u1eaft l\u01b0u hu\u1ef3nh\u2013ph\u1ed1tpho (kh\u00f4ng clo) ho\u1eb7c MQL hi\u1ec7u n\u0103ng cao.<br \/>\n&#8211; Chi\u1ebfn l\u01b0\u1ee3c c\u1eaft: gi\u1ea3m th\u1eddi gian ma s\u00e1t \u1edf s\u01b0\u1eddn (ae nh\u1ecf, ap l\u1edbn; c\u1eaft gi\u00e1n \u0111o\u1ea1n tr\u00e1nh); tr\u00e1nh c\u1eaft \u201cc\u1ecd\u201d sinh nhi\u1ec7t.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o cho ph\u1ea7n dao c\u1eaft: H\u01b0\u1edbng d\u1eabn gia c\u00f4ng Inox c\u1ee7a Sandvik Coromant, Seco Tools [1].<\/p>\n<h2 id=\"toc-3-khuon-dap-inox-chon-vat-lieu-thep-khuon-nao-de-it-\">Khu\u00f4n d\u1eadp Inox: Ch\u1ecdn v\u1eadt li\u1ec7u th\u00e9p khu\u00f4n n\u00e0o \u0111\u1ec3 \u00edt d\u00ednh b\u00e1m, \u00edt m\u1ebb c\u1ea1nh?<\/h2>\n<h3>1) L\u1ef1a ch\u1ecdn v\u1eadt li\u1ec7u khu\u00f4n theo \u1ee9ng d\u1ee5ng<\/h3>\n<p>&#8211; D2 \/ SKD11 \/ Cr12MoV (58\u201362 HRC): ph\u1ed5 bi\u1ebfn, ch\u1ed1ng m\u00f2n m\u00e0i m\u00f2n t\u1ed1t; tuy nhi\u00ean v\u1edbi Inox austenitic d\u1ec5 n\u1ee9t m\u1ebb vi m\u00f4 v\u00e0 d\u00ednh b\u00e1m n\u1ebfu t\u1ea3i s\u1ed1c\/c\u01b0\u1eddng \u0111\u1ed9 cao.<br \/>\n&#8211; DC53 (bi\u1ebfn th\u1ec3 c\u1ea3i ti\u1ebfn c\u1ee7a D2): \u0111\u1ed9 dai cao h\u01a1n, \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc sau ram; ph\u00f9 h\u1ee3p \u0111\u1ed9t c\u1eaft\/d\u1eadp ngu\u1ed9i Inox t\u1ea5m m\u1ecfng\u2013trung b\u00ecnh, tu\u1ed5i th\u1ecd v\u01b0\u1ee3t D2 1,5\u20132,5 l\u1ea7n n\u1ebfu nhi\u1ec7t luy\u1ec7n \u0111\u00fang.<br \/>\n&#8211; M2 (SKH51) \/ M4: b\u1ec1n n\u00f3ng v\u00e0 d\u1ebbo dai cao; r\u1ea5t ph\u00f9 h\u1ee3p dao c\u1eaft \u0111\u1ee9t, dao x\u00e9n, l\u01b0\u1ee1i slit Inox m\u1ecfng t\u1ed1c \u0111\u1ed9 cao; kh\u1ea3 n\u0103ng ch\u1ed1ng m\u1ebb t\u1ed1t.<br \/>\n&#8211; Th\u00e9p PM cho khu\u00f4n ngu\u1ed9i ch\u1ecbu d\u00ednh b\u00e1m:<br \/>\n  &#8211; Vanadis 4 Extra \/ Caldie (Cr\u2013Mo\u2013V, PM): c\u00e2n b\u1eb1ng m\u00f2n\u2013\u0111\u1ed9 dai, ch\u1ed1ng m\u1ebb c\u1ea1nh; ch\u1ed1ng d\u00ednh b\u00e1m t\u1ed1t h\u01a1n D2; th\u00edch h\u1ee3p blanking\/forming Inox.<br \/>\n  &#8211; Vanadis 23 \/ CPM 10V (h\u00e0m l\u01b0\u1ee3ng V cao, nhi\u1ec1u VC): kh\u00e1ng m\u00e0i m\u00f2n c\u1ef1c t\u1ed1t cho bi\u00ean d\u1ea1ng m\u00e0i m\u00f2n n\u1eb7ng; c\u1ea7n thi\u1ebft k\u1ebf tr\u00e1nh t\u1ea3i s\u1ed1c cao.<br \/>\n  &#8211; Vancron SuperClean (th\u00e9p PM nit\u01a1 h\u00f3a): b\u1ec1 m\u1eb7t \u201ct\u1ef1 ch\u1ed1ng d\u00ednh\u201d n\u1ed5i ti\u1ebfng, gi\u1ea3m galling m\u1ea1nh khi d\u1eadp t\u1ea1o h\u00ecnh austenitic; chi ph\u00ed cao nh\u01b0ng t\u0103ng tu\u1ed5i th\u1ecd v\u01b0\u1ee3t tr\u1ed9i [2].<br \/>\n&#8211; S7 (shock-resisting): cho \u0111\u1ed9t c\u1eaft t\u1ea5m d\u00e0y\/va \u0111\u1eadp n\u1eb7ng; ch\u1ed1ng m\u1ebb t\u1ed1t, nh\u01b0ng ch\u1ed1ng m\u00f2n k\u00e9m \u2192 c\u1ea7n ph\u1ee7\/nitriding.<br \/>\n&#8211; H13 \/ SKD61: d\u00f9ng cho d\u1eadp \u1ea5m\/n\u00f3ng Inox (gi\u1ea3m l\u1ef1c, gi\u1ea3m d\u00ednh b\u00e1m b\u1eb1ng nhi\u1ec7t), \u0111\u1ed9 c\u1ee9ng 48\u201352 HRC.<\/p>\n<p>G\u1ee3i \u00fd nhanh:<br \/>\n&#8211; \u0110\u1ed9t c\u1eaft\/\u0111\u1ee5c l\u1ed7 Inox \u2264 2 mm: DC53 ho\u1eb7c M2; ph\u1ee7 PVD AlCrN\/TiCN.<br \/>\n&#8211; \u0110\u1ed9t c\u1eaft 2\u20136 mm ho\u1eb7c v\u1eadt li\u1ec7u b\u1ec1n cao (duplex): Vanadis 4 Extra\/Caldie; n\u1ebfu m\u00e0i m\u00f2n kh\u1ed1c li\u1ec7t d\u00f9ng Vanadis 23 hay CPM 10V.<br \/>\n&#8211; T\u1ea1o h\u00ecnh s\u00e2u (deep-draw) austenitic: Vancron SC ho\u1eb7c Caldie + ph\u1ee7 CrN\/DLC.<\/p>\n<h3>2) Nhi\u1ec7t luy\u1ec7n \u0111\u00fang \u0111\u1ec3 b\u1ec1n v\u00e0 dai<\/h3>\n<p>&#8211; M\u1ee5c ti\u00eau \u0111\u1ed9 c\u1ee9ng:<br \/>\n  &#8211; D2\/DC53\/PM ngu\u1ed9i: 58\u201362 HRC; t\u00f4i ch\u00e2n kh\u00f4ng + ram 2\u20133 l\u1ea7n; c\u00f3 th\u1ec3 x\u1eed l\u00fd l\u1ea1nh (cryo) \u0111\u1ec3 gi\u1ea3m austenit d\u01b0, t\u0103ng \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc.<br \/>\n  &#8211; M2\/M4: 60\u201364 HRC.<br \/>\n  &#8211; H13: 48\u201352 HRC.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t kh\u1eed cacbit th\u00f4 v\u00e0 austenit d\u01b0 \u0111\u1ec3 gi\u1ea3m m\u1ebb c\u1ea1nh s\u1edbm. Tu\u00e2n th\u1ee7 bi\u1ec3u \u0111\u1ed3 nhi\u1ec7t luy\u1ec7n c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t th\u00e9p khu\u00f4n [2].<\/p>\n<h3>3) L\u1edbp ph\u1ee7 v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t ch\u1ed1ng d\u00ednh b\u00e1m<\/h3>\n<p>&#8211; PVD \u01b0u ti\u00ean v\u00ec gi\u1eef s\u1eafc c\u1ea1nh:<br \/>\n  &#8211; CrN: h\u1ec7 s\u1ed1 ma s\u00e1t th\u1ea5p, b\u1ec1n \u1edf nhi\u1ec7t trung b\u00ecnh; r\u1ea5t hi\u1ec7u qu\u1ea3 ch\u1ed1ng galling v\u1edbi Inox.<br \/>\n  &#8211; TiCN: c\u1ee9ng, ch\u1ed1ng m\u00f2n v\u00e0 d\u00ednh t\u1ed1t cho \u0111\u1ed9t c\u1eaft.<br \/>\n  &#8211; AlCrN\/AlTiN: b\u1ec1n n\u00f3ng cao, h\u1ee3p cho t\u1ed1c \u0111\u1ed9\/nh\u1ecbp cao, gi\u1ea3m m\u00f2n r\u00e3nh.<br \/>\n  &#8211; DLC (a-C:H): r\u1ea5t tr\u01a1n; d\u00f9ng cho b\u1ec1 m\u1eb7t tr\u01b0\u1ee3t\/khu\u00f4n vu\u1ed1t; tr\u00e1nh d\u00f9ng \u1edf m\u00e9p c\u1eaft ch\u1ecbu va \u0111\u1eadp m\u1ea1nh.<br \/>\n&#8211; Nitriding\/ion-nitriding: l\u1edbp 900\u20131200 HV gi\u00fap ch\u1ed1ng d\u00ednh v\u00e0 m\u00f2n s\u01b0\u1eddn, d\u00f9ng tr\u01b0\u1edbc\/ho\u1eb7c sau PVD t\u00f9y quy tr\u00ecnh.<br \/>\n&#8211; TD (Thermal Diffusion) t\u1ea1o l\u1edbp VC\/NbC si\u00eau c\u1ee9ng: c\u1ef1c k\u1ef3 ch\u1ed1ng m\u00f2n d\u00ednh khi \u0111\u1ed9t c\u1eaft Inox d\u00e0y; c\u1ea7n ki\u1ec3m so\u00e1t bi\u1ebfn d\u1ea1ng.<br \/>\n&#8211; \u0110\u00e1nh b\u00f3ng b\u1ec1 m\u1eb7t \u0111\u1ebfn Ra \u2264 0,2 \u00b5m v\u00e0 bo b\u00e1n k\u00ednh m\u00e9p tho\u00e1t v\u1eadt li\u1ec7u gi\u00fap gi\u1ea3m pickup.<\/p>\n<h3>4) Thi\u1ebft k\u1ebf khu\u00f4n: khe h\u1edf, g\u00f3c x\u00e9n, t\u1ea5m ch\u1eb7n<\/h3>\n<p>&#8211; Khe h\u1edf (clearance) l\u1edbn h\u01a1n so v\u1edbi th\u00e9p cacbon:<br \/>\n  &#8211; Inox austenitic: 15\u201320% b\u1ec1 d\u00e0y t\u1ea5m m\u1ed7i b\u00ean; ferritic: 12\u201318%; t\u0103ng clearance gi\u00fap gi\u1ea3m l\u1ef1c \u0111\u1ed9t 20\u201335% v\u00e0 gi\u1ea3m galling, th\u01b0\u1eddng t\u0103ng tu\u1ed5i th\u1ecd 2\u00d7 tr\u1edf l\u00ean so v\u1edbi 6\u20138% nh\u01b0 th\u00e9p m\u1ec1m [3].<br \/>\n&#8211; T\u1ea1o g\u00f3c c\u1eaft\/shear tr\u00ean ch\u00e0y \u0111\u1ec3 h\u1ea1 \u0111\u1ec9nh t\u1ea3i, gi\u1ea3m s\u1ed1c.<br \/>\n&#8211; Gi\u1ea3m chi\u1ec1u d\u00e0i land \u1edf l\u1ed7 khu\u00f4n \u0111\u1ec3 gi\u1ea3m ma s\u00e1t; d\u00f9ng t\u1ea5m ch\u1eb7n\/strippers c\u00f3 ph\u1ee7 tr\u01a1n (CrN\/DLC).<br \/>\n&#8211; D\u1eabn phoi t\u1ed1t, tr\u00e1nh k\u1eb9t phoi l\u00e0m s\u1ee9t c\u1ea1nh.<\/p>\n<h3>5) B\u00f4i tr\u01a1n v\u00e0 v\u1ec7 sinh khi d\u1eadp<\/h3>\n<p>&#8211; D\u00f9ng d\u1ea7u EP l\u01b0u hu\u1ef3nh\u2013ph\u1ed1tpho kh\u00f4ng clo ho\u1eb7c nh\u0169 t\u01b0\u01a1ng \u00e1p l\u1ef1c cao chuy\u00ean cho Inox; v\u1edbi s\u1ea3n ph\u1ea9m y\u00eau c\u1ea7u s\u1ea1ch d\u1ea7u, ch\u1ecdn c\u00f4ng ngh\u1ec7 d\u1ec5 t\u1ea9y r\u1eeda.<br \/>\n&#8211; V\u1ec7 sinh khu\u00f4n \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 lo\u1ea1i b\u1ecf \u201cpickup\u201d Inox; m\u00e0i\/ch\u1ec9nh l\u01b0\u1ee1i theo l\u1ecbch \u0111\u1ec3 duy tr\u00ec bi\u00ean d\u1ea1ng s\u1eafc.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o cho ph\u1ea7n khu\u00f4n d\u1eadp: T\u00e0i li\u1ec7u ch\u1ecdn th\u00e9p khu\u00f4n v\u00e0 ch\u1ed1ng galling c\u1ee7a Uddeholm\/B\u00f6hler-Uddeholm; khuy\u1ebfn ngh\u1ecb khe h\u1edf \u0111\u1ed9t c\u1eaft Inox c\u1ee7a Mate\/Wilson Tool [2][3].<\/p>\n<h2 id=\"toc-4-thong-so-thuc-hanh-khuyen-nghi-tham-khao\">Th\u00f4ng s\u1ed1 th\u1ef1c h\u00e0nh khuy\u1ebfn ngh\u1ecb (tham kh\u1ea3o)<\/h2>\n<p>&#8211; Khoan 304 \u00d810 mm<br \/>\n  &#8211; PM-HSS-E + TiAlN: vc 18\u201322 m\/ph\u00fat; f 0,10\u20130,18 mm\/v\u00f2ng; l\u00e0m m\u00e1t xuy\u00ean t\u00e2m n\u1ebfu c\u00f3.<br \/>\n  &#8211; Solid carbide + AlCrN: vc 60\u201380 m\/ph\u00fat; f 0,15\u20130,25 mm\/v\u00f2ng; khoan b\u01b0\u1edbc v\u00e0 ph\u00e1 phoi n\u1ebfu s\u00e2u > 3D.<br \/>\n&#8211; Phay 304 b\u1eb1ng dao phay ng\u00f3n carbide \u00d810 mm<br \/>\n  &#8211; vc 100\u2013130 m\/ph\u00fat; fz 0,06\u20130,10 mm\/r\u0103ng; ae 10\u201325% D; ap 1\u20131,5 D; l\u00e0m m\u00e1t MQL ho\u1eb7c nh\u0169 t\u01b0\u01a1ng \u00e1p cao.<br \/>\n&#8211; Taro M10x1.5 tr\u00ean 304<br \/>\n  &#8211; Taro l\u0103n HSS-E + DLC: 6\u201310 m\/ph\u00fat; d\u1ea7u taro EP cao.<br \/>\n  &#8211; Taro c\u1eaft HSS-E + TiCN: 5\u20138 m\/ph\u00fat; m\u1ed3i l\u1ed7 \u0111\u00fang dung sai.<br \/>\n&#8211; \u0110\u1ed9t l\u1ed7 \u00d810 mm tr\u00ean t\u1ea5m 304 d\u00e0y 2,0 mm<br \/>\n  &#8211; Ch\u00e0y: DC53 60 HRC + PVD AlCrN; khu\u00f4n: DC53\/Vanadis 4E 60 HRC; clearance 0,3\u20130,4 mm t\u1ed5ng (15\u201320% t m\u1ed7i b\u00ean); shear 1\u20132\u00b0; b\u00f4i tr\u01a1n EP.<br \/>\n&#8211; C\u1eaft x\u00e9n b\u00eca t\u1ea5m 430 d\u00e0y 1,2 mm t\u1ed1c \u0111\u1ed9 cao<br \/>\n  &#8211; Dao M2 62 HRC + TiN\/AlCrN; khe h\u1edf 12\u201315% t; b\u1ec1 m\u1eb7t dao \u0111\u00e1nh b\u00f3ng.<\/p>\n<p>L\u01b0u \u00fd: Th\u00f4ng s\u1ed1 c\u1ea7n tinh ch\u1ec9nh theo m\u00e1y, g\u00e1 k\u1eb9p, \u0111\u1ed9 c\u1ee9ng ph\u00f4i, v\u00e0 khuy\u1ebfn ngh\u1ecb c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t dao\/khu\u00f4n [1][2].<\/p>\n<h2 id=\"toc-5-checklist-nhanh-chon-vat-lieu-va-phu-de-tang-tuoi-\">Checklist nhanh ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 ph\u1ee7 \u0111\u1ec3 t\u0103ng tu\u1ed5i th\u1ecd<\/h2>\n<p>&#8211; Dao c\u1eaft:<br \/>\n  &#8211; V\u1eadt li\u1ec7u: PM-HSS (khoan\/taro) ho\u1eb7c carbide ISO M (phay\/ti\u1ec7n).<br \/>\n  &#8211; Ph\u1ee7: AlCrN\/TiAlN ho\u1eb7c TiCN; ZrN\/CrN khi c\u1ea7n b\u1ec1 m\u1eb7t \u201ctr\u01a1n\u201d.<br \/>\n  &#8211; H\u00ecnh h\u1ecdc: rake d\u01b0\u01a1ng l\u1edbn, c\u1ea1nh microhone 10\u201320 \u00b5m, r\u00e3nh phoi b\u00f3ng.<br \/>\n  &#8211; L\u00e0m m\u00e1t: \u00e1p cao\/nh\u0169 t\u01b0\u01a1ng 8\u201312%; d\u1ea7u EP cho taro\/khoan s\u00e2u.<br \/>\n&#8211; Khu\u00f4n d\u1eadp:<br \/>\n  &#8211; V\u1eadt li\u1ec7u: DC53 cho ti\u00eau chu\u1ea9n; Vanadis 4E\/Caldie cho t\u1ea3i n\u1eb7ng, ch\u1ed1ng m\u1ebb; Vancron\/10V khi d\u00ednh b\u00e1m\/m\u00e0i m\u00f2n c\u1ef1c n\u1eb7ng.<br \/>\n  &#8211; Nhi\u1ec7t luy\u1ec7n \u0111\u00fang d\u1ea3i HRC; c\u00e2n nh\u1eafc cryo, ram nhi\u1ec1u l\u1ea7n.<br \/>\n  &#8211; Khe h\u1edf: 15\u201320% t cho austenitic; t\u1ea1o shear gi\u1ea3m \u0111\u1ec9nh t\u1ea3i.<br \/>\n  &#8211; Ph\u1ee7\/XL b\u1ec1 m\u1eb7t: CrN\/TiCN\/AlCrN; DLC cho b\u1ec1 m\u1eb7t tr\u01b0\u1ee3t; nitriding\/TD khi c\u1ea7n.<br \/>\n  &#8211; B\u00f4i tr\u01a1n EP v\u00e0 b\u1ea3o tr\u00ec l\u00e0m s\u1ea1ch \u201cpickup\u201d.<\/p>\n<h2 id=\"toc-6-case-study-ngan-tang-3-tuoi-tho-khi-dot-304-t2-mm\">Case study ng\u1eafn: T\u0103ng 3\u00d7 tu\u1ed5i th\u1ecd khi \u0111\u1ed9t 304 t=2 mm<\/h2>\n<p>B\u00e0i to\u00e1n: \u0111\u1ed9t l\u1ed7 \u00d88\u2013\u00d812 tr\u00ean 304 t=2 mm, khu\u00f4n D2 60 HRC, clearance 8% t; tu\u1ed5i th\u1ecd 10.000 l\u1ed7 do m\u1ebb c\u1ea1nh v\u00e0 d\u00ednh b\u00e1m.<br \/>\nGi\u1ea3i ph\u00e1p: chuy\u1ec3n sang DC53 60 HRC; PVD AlCrN; \u0111\u00e1nh b\u00f3ng + bo nh\u1eb9 m\u00e9p; t\u0103ng clearance l\u00ean 18% t; t\u1ea1o shear 1,5\u00b0; d\u00f9ng d\u1ea7u EP kh\u00f4ng clo.<br \/>\nK\u1ebft qu\u1ea3: gi\u1ea3m l\u1ef1c \u0111\u1ed9t ~25\u201330%, bavia th\u1ea5p h\u01a1n; tu\u1ed5i th\u1ecd \u0111\u1ea1t 30.000\u201335.000 l\u1ed7 tr\u01b0\u1edbc khi m\u00e0i l\u1ea1i. Tham chi\u1ebfu c\u00e1c khuy\u1ebfn ngh\u1ecb khe h\u1edf v\u00e0 ph\u1ee7 t\u1eeb Mate\/Uddeholm [2][3].<\/p>\n<h2 id=\"toc-7-nguon-tham-khao\">Ngu\u1ed3n tham kh\u1ea3o<\/h2>\n<p>&#8211; [1] Sandvik Coromant \u2013 Machining stainless steels: h\u01b0\u1edbng d\u1eabn v\u1eadt li\u1ec7u dao, h\u00ecnh h\u1ecdc v\u00e0 th\u00f4ng s\u1ed1 c\u1eaft cho ISO M. https:\/\/www.sandvik.coromant.com<br \/>\n&#8211; [2] Uddeholm\/B\u00f6hler-Uddeholm \u2013 Tool steel for cold work (Caldie, Vanadis, Vancron), kh\u00e1ng galling v\u00e0 khuy\u1ebfn ngh\u1ecb nhi\u1ec7t luy\u1ec7n. https:\/\/www.uddeholm.com<br \/>\n&#8211; [3] Mate Precision\/Wilson Tool \u2013 Stainless steel punching guidelines (clearance, coatings, anti-galling). https:\/\/www.mate.com | https:\/\/www.wilsontool.com<\/p>\n<h2 id=\"toc-8-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; Inox y\u00eau c\u1ea7u d\u1ee5ng c\u1ee5 c\u00f3 b\u1ec1n n\u00f3ng, d\u1ebbo dai v\u00e0 ch\u1ed1ng d\u00ednh b\u00e1m cao.<br \/>\n&#8211; Dao c\u1eaft: \u01b0u ti\u00ean PM-HSS cho khoan\/taro v\u00e0 carbide ISO M cho phay\/ti\u1ec7n, k\u1ebft h\u1ee3p ph\u1ee7 AlCrN\/TiAlN\/TiCN, l\u01b0\u1ee1i s\u1eafc v\u00e0 l\u00e0m m\u00e1t hi\u1ec7u qu\u1ea3.<br \/>\n&#8211; Khu\u00f4n d\u1eadp: n\u00e2ng c\u1ea5p t\u1eeb D2 l\u00ean DC53 ho\u1eb7c th\u00e9p PM nh\u01b0 Vanadis\/Caldie, ch\u1ecdn clearance l\u1edbn h\u01a1n (15\u201320% t v\u1edbi austenitic), ph\u1ee7 CrN\/AlCrN\/DLC, v\u00e0 nhi\u1ec7t luy\u1ec7n chu\u1ea9n.<br \/>\nTh\u1ef1c hi\u1ec7n \u0111\u1ed3ng b\u1ed9 c\u00e1c y\u1ebfu t\u1ed1 tr\u00ean th\u01b0\u1eddng gi\u00fap t\u0103ng 2\u20135 l\u1ea7n tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5, \u1ed5n \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng m\u00e9p c\u1eaft v\u00e0 gi\u1ea3m chi ph\u00ed v\u00f2ng \u0111\u1eddi.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn v\u1eadt li\u1ec7u dao\/khu\u00f4n v\u00e0 l\u1edbp ph\u1ee7 ph\u00f9 h\u1ee3p chi ti\u1ebft gia c\u00f4ng c\u1ee7a b\u1ea1n? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 b\u00e1o gi\u00e1 t\u1ed1t nh\u1ea5t. Hotline: 0343.417.281. Email: inoxcongnghiep.cuongthinh@gmail.com<\/p>\n","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn ch\u1ecdn v\u1eadt li\u1ec7u v\u00e0 l\u1edbp ph\u1ee7 cho dao c\u1eaft, khu\u00f4n d\u1eadp Inox: HSS, carbide, DC53, Vanadis, clearance, nhi\u1ec7t luy\u1ec7n, b\u00f4i tr\u01a1n \u0111\u1ec3 t\u0103ng 2\u20135 l\u1ea7n tu\u1ed5i th\u1ecd.<\/p>\n","protected":false},"author":7,"featured_media":1016,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1834","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"acf":[],"_links":{"self":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1834","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/comments?post=1834"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1834\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1016"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}