{"id":1386,"date":"2025-12-03T12:34:40","date_gmt":"2025-12-03T05:34:40","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/chon-vat-lieu-dao-cat-khuon-dap-inox-giup-tang-tuoi-tho-2-5-lan\/"},"modified":"2025-12-03T12:34:40","modified_gmt":"2025-12-03T05:34:40","slug":"chon-vat-lieu-dao-cat-khuon-dap-inox-giup-tang-tuoi-tho-2-5-lan","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/chon-vat-lieu-dao-cat-khuon-dap-inox-giup-tang-tuoi-tho-2-5-lan\/","title":{"rendered":"Ch\u1ecdn v\u1eadt li\u1ec7u dao c\u1eaft, khu\u00f4n d\u1eadp Inox gi\u00fap t\u0103ng tu\u1ed5i th\u1ecd 2\u20135 l\u1ea7n"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-5-thach-thuc-khi-gia-congdap-inox-ban-phai-thiet-k\">5 th\u00e1ch th\u1ee9c khi gia c\u00f4ng\/d\u1eadp Inox b\u1ea1n ph\u1ea3i \u201cthi\u1ebft k\u1ebf ng\u01b0\u1ee3c\u201d v\u1eadt li\u1ec7u d\u1ee5ng c\u1ee5<\/a><\/li>\n<li><a href=\"#toc-1-phan-loai-nhanh-inox-va-he-qua-chon-dung-cu\">Ph\u00e2n lo\u1ea1i nhanh Inox v\u00e0 h\u1ec7 qu\u1ea3 ch\u1ecdn d\u1ee5ng c\u1ee5<\/a><\/li>\n<li><a href=\"#toc-2-chon-vat-lieu-cho-dao-cat-tien-phay-khoan-doa-cat-\">Ch\u1ecdn v\u1eadt li\u1ec7u cho DAO C\u1eaeT (ti\u1ec7n, phay, khoan, doa, c\u1eaft r\u00e3nh)<\/a><\/li>\n<li><a href=\"#toc-3-chon-vat-lieu-cho-khuon-dap-cat-dot-dot-lo-uon-vuo\">Ch\u1ecdn v\u1eadt li\u1ec7u cho KHU\u00d4N D\u1eacP (c\u1eaft \u0111\u1ed9t, \u0111\u1ed9t l\u1ed7, u\u1ed1n, vu\u1ed1t s\u00e2u, c\u1eaft x\u1ebb)<\/a><\/li>\n<li><a href=\"#toc-4-thiet-ke-khuon-anh-huong-truc-tiep-toi-tuoi-tho-du\">Thi\u1ebft k\u1ebf khu\u00f4n \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1edbi tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5<\/a><\/li>\n<li><a href=\"#toc-5-boi-tron-dung-cach-chia-khoa-chong-galling-voi-ino\">B\u00f4i tr\u01a1n \u0111\u00fang c\u00e1ch: ch\u00eca kh\u00f3a ch\u1ed1ng galling v\u1edbi Inox<\/a><\/li>\n<li><a href=\"#toc-6-tinh-luc-cat-dot-nhanh-de-chon-vat-lieu-phu-hop\">T\u00ednh l\u1ef1c c\u1eaft \u0111\u1ed9t nhanh \u0111\u1ec3 ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p<\/a><\/li>\n<li><a href=\"#toc-7-lo-trinh-chon-vat-lieu-dung-cu-theo-muc-tieu-xuong\">L\u1ed9 tr\u00ecnh ch\u1ecdn v\u1eadt li\u1ec7u d\u1ee5ng c\u1ee5 theo m\u1ee5c ti\u00eau x\u01b0\u1edfng<\/a><\/li>\n<li><a href=\"#toc-8-check-list-nang-tuoi-tho-25-lan\">Check-list n\u00e2ng tu\u1ed5i th\u1ecd 2\u20135 l\u1ea7n<\/a><\/li>\n<li><a href=\"#toc-9-vi-du-trien-khai-thuc-te-ngan\">V\u00ed d\u1ee5 tri\u1ec3n khai th\u1ef1c t\u1ebf ng\u1eafn<\/a><\/li>\n<li><a href=\"#toc-10-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<li><a href=\"#toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Inox (th\u00e9p kh\u00f4ng g\u1ec9) g\u00e2y d\u00ednh b\u00e1m, h\u00f3a b\u1ec1n ngu\u1ed9i v\u00e0 t\u1ecfa nhi\u1ec7t k\u00e9m\u2014\u0111\u00f3 l\u00e0 \u201cb\u1ed9 ba\u201d r\u00fat ng\u1eafn tu\u1ed5i th\u1ecd dao\/khu\u00f4n. B\u00e0i vi\u1ebft n\u00e0y \u0111i th\u1eb3ng v\u00e0o c\u1ed1t l\u00f5i: ch\u1ecdn v\u1eadt li\u1ec7u dao c\u1eaft v\u00e0 khu\u00f4n d\u1eadp ph\u00f9 h\u1ee3p cho t\u1eebng nh\u00f3m Inox v\u00e0 c\u00f4ng \u0111o\u1ea1n, k\u1ebft h\u1ee3p nhi\u1ec7t luy\u1ec7n, ph\u1ee7 b\u1ec1 m\u1eb7t, thi\u1ebft k\u1ebf khe h\u1edf\/k\u1ebft c\u1ea5u \u0111\u1ec3 t\u0103ng tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5 2\u20135 l\u1ea7n. Ch\u1ee7 \u0111\u1ec1 l\u00e0 m\u1ea3nh gh\u00e9p quan tr\u1ecdng trong c\u1ea9m nang gia c\u00f4ng Inox (c\u1eaft, ch\u1ea5n, d\u1eadp, l\u1ed1c), nh\u01b0ng \u0111\u1ee7 \u0111\u1ed9c l\u1eadp \u0111\u1ec3 b\u1ea1n \u00e1p d\u1ee5ng ngay t\u1ea1i x\u01b0\u1edfng.<\/p>\n<h2 id=\"toc-0-5-thach-thuc-khi-gia-congdap-inox-ban-phai-thiet-k\">5 th\u00e1ch th\u1ee9c khi gia c\u00f4ng\/d\u1eadp Inox b\u1ea1n ph\u1ea3i \u201cthi\u1ebft k\u1ebf ng\u01b0\u1ee3c\u201d v\u1eadt li\u1ec7u d\u1ee5ng c\u1ee5<\/h2>\n<p>&#8211; H\u00f3a b\u1ec1n ngu\u1ed9i m\u1ea1nh (\u0111\u1eb7c bi\u1ec7t 304\/316): y\u00eau c\u1ea7u m\u00e9p c\u1eaft s\u1eafc, \u00e1p l\u1ef1c n\u00e9n cao, ki\u1ec3m so\u00e1t phoi t\u1ed1t.<br \/>\n&#8211; D\u00ednh b\u00e1m (galling\/adhesive wear): c\u1ea7n b\u1ec1 m\u1eb7t khu\u00f4n ch\u1ed1ng d\u00ednh, ma s\u00e1t th\u1ea5p, b\u00f4i tr\u01a1n ph\u00f9 h\u1ee3p.<br \/>\n&#8211; D\u1eabn nhi\u1ec7t k\u00e9m: nhi\u1ec7t t\u00edch t\u1ee5 \u1edf l\u01b0\u1ee1i c\u1eaft \u2192 c\u1ea7n v\u1eadt li\u1ec7u ch\u1ecbu nhi\u1ec7t v\u00e0 ph\u1ee7 ch\u1ecbu nhi\u1ec7t.<br \/>\n&#8211; M\u00f2n r\u00e3nh\/kh\u00eda c\u1ea1nh (notch wear) t\u1ea1i m\u1eb7t tho\u00e1t phoi v\u00e0 m\u00e9p v\u00f9ng c\u1eaft.<br \/>\n&#8211; \u0102n m\u00f2n\/oxy h\u00f3a \u1edf d\u1ee5ng c\u1ee5 khi gia c\u00f4ng \u01b0\u1edbt l\u00e2u d\u00e0i.<\/p>\n<h2 id=\"toc-1-phan-loai-nhanh-inox-va-he-qua-chon-dung-cu\">Ph\u00e2n lo\u1ea1i nhanh Inox v\u00e0 h\u1ec7 qu\u1ea3 ch\u1ecdn d\u1ee5ng c\u1ee5<\/h2>\n<p>&#8211; Austenitic (304, 316): h\u00f3a b\u1ec1n cao, d\u00ednh b\u00e1m m\u1ea1nh. \u01afu ti\u00ean d\u1ee5ng c\u1ee5 s\u1eafc, ph\u1ee7 PVD ch\u1ed1ng d\u00ednh, t\u1ed1c \u0111\u1ed9 v\u1eeba-th\u1ea5p.<br \/>\n&#8211; Ferritic (430): d\u1ec5 gia c\u00f4ng h\u01a1n; t\u1ed1c \u0111\u1ed9 cao h\u01a1n austenitic ~10\u201320%.<br \/>\n&#8211; Martensitic (410\/420): c\u1ee9ng h\u01a1n sau t\u00f4i; gia c\u00f4ng kh\u00f4 kh\u00f4ng khuy\u1ebfn ngh\u1ecb; \u01b0u ti\u00ean carbide, ph\u1ee7 ch\u1ecbu nhi\u1ec7t.<br \/>\n&#8211; Duplex (2205): b\u1ec1n, d\u1ebbo th\u1ea5p; d\u1ec5 m\u1ebb l\u01b0\u1ee1i. D\u00f9ng carbide h\u1ea1t m\u1ecbn, \u0111\u1ed9 b\u1ec1n u\u1ed1n cao, g\u00f3c d\u01b0\u01a1ng.<br \/>\n&#8211; Precipitation-hardening (17-4PH): \u0111\u1ed9 b\u1ec1n cao; d\u1ee5ng c\u1ee5 c\u1ee9ng, ph\u1ee7 ch\u1ecbu nhi\u1ec7t, ki\u1ec3m so\u00e1t rung.<\/p>\n<h2 id=\"toc-2-chon-vat-lieu-cho-dao-cat-tien-phay-khoan-doa-cat-\">Ch\u1ecdn v\u1eadt li\u1ec7u cho DAO C\u1eaeT (ti\u1ec7n, phay, khoan, doa, c\u1eaft r\u00e3nh)<\/h2>\n<h3>1) V\u1eadt li\u1ec7u n\u1ec1n d\u1ee5ng c\u1ee5 khuy\u1ebfn ngh\u1ecb<\/h3>\n<p>&#8211; HSS\/M-Co (M35, M42): cho khoan m\u0169i nh\u1ecf, doa tinh, taro; ch\u1ecbu d\u00ednh b\u00e1m t\u1ed1t h\u01a1n carbide; t\u1ed1c \u0111\u1ed9 c\u1eaft th\u1ea5p.<br \/>\n&#8211; HSS b\u1ed9t luy\u1ec7n (PM HSS nh\u01b0 ASP 23\/30): h\u1ea1t m\u1ecbn, ch\u1ed1ng m\u1ebb t\u1ed1t; ph\u00f9 h\u1ee3p khoan-taro Inox.<br \/>\n&#8211; Carbide WC-Co (h\u1ea1t m\u1ecbn\/submicron, Co 8\u201312%): l\u1ef1a ch\u1ecdn ch\u00ednh cho ti\u1ec7n\/phay\/khoan \u0111\u01b0\u1eddng k\u00ednh trung-l\u1edbn tr\u00ean 304\/316\/duplex.<br \/>\n&#8211; Cermet: \u00edt d\u00ednh b\u00e1m nh\u01b0ng gi\u00f2n; kh\u00f4ng \u01b0u ti\u00ean cho austenitic\/duplex \u1edf c\u1eaft gi\u00e1n \u0111o\u1ea1n.<br \/>\n&#8211; G\u1ed1m\/SiAlON: ch\u1ec9 cho tinh tr\u00ean martensitic\/PH t\u1ed1c \u0111\u1ed9 cao, c\u1eaft li\u00ean t\u1ee5c, k\u1eb9p ch\u1eafc; r\u1ee7i ro m\u1ebb \u1edf austenitic.<br \/>\n&#8211; PCBN\/PCD: kh\u00f4ng ph\u00f9 h\u1ee3p cho th\u00e9p kh\u00f4ng g\u1ec9 (PCD ph\u1ea3n \u1ee9ng v\u1edbi s\u1eaft, PCBN d\u1ec5 m\u00f2n h\u00f3a h\u1ecdc \u1edf austenitic).<\/p>\n<h3>2) Ph\u1ee7 b\u1ec1 m\u1eb7t cho dao c\u1eaft<\/h3>\n<p>&#8211; PVD TiAlN\/AlTiN\/AlCrN: ch\u1ecbu nhi\u1ec7t, gi\u1ea3m m\u00f2n r\u00e3nh; l\u1ef1a ch\u1ecdn chung cho phay\/ti\u1ec7n.<br \/>\n&#8211; TiCN: ma s\u00e1t th\u1ea5p, ch\u1ed1ng d\u00ednh t\u1ed1t; h\u1eefu \u00edch khoan\/taro.<br \/>\n&#8211; CrN, DLC (amorphous): ch\u1ed1ng d\u00ednh b\u00e1m t\u1ed1i \u01b0u, \u0111\u1eb7c bi\u1ec7t cho taro\/khoan m\u1ecfng; tr\u00e1nh nhi\u1ec7t qu\u00e1 cao v\u1edbi DLC.<br \/>\n&#8211; L\u01b0u \u00fd: PVD \u01b0u ti\u00ean cho m\u00e9p s\u1eafc; CVD d\u00e0y d\u1ec5 \u201cbo m\u00e9p\u201d kh\u00f4ng l\u1ee3i cho Inox m\u1ecfng.<\/p>\n<h3>3) H\u00ecnh h\u1ecdc l\u01b0\u1ee1i v\u00e0 th\u00f4ng s\u1ed1 c\u1eaft (tham kh\u1ea3o)<\/h3>\n<p>&#8211; H\u00ecnh h\u1ecdc: g\u00f3c d\u01b0\u01a1ng, b\u00e1n k\u00ednh m\u0169i nh\u1ecf, v\u00e1t m\u00e9p r\u1ea5t nh\u1eb9 (hone nh\u1ecf), chipbreaker d\u01b0\u01a1ng cho austenitic.<br \/>\n&#8211; T\u1ed1c \u0111\u1ed9 c\u1eaft (vc) \u0111i\u1ec3n h\u00ecnh:<br \/>\n  &#8211; Ti\u1ec7n austenitic b\u1eb1ng carbide: 80\u2013150 m\/ph; duplex: 60\u201390 m\/ph; ferritic\/martensitic: 120\u2013200 m\/ph.<br \/>\n  &#8211; Phay 304\/316 b\u1eb1ng carbide: 120\u2013180 m\/ph; duplex: 80\u2013120 m\/ph.<br \/>\n  &#8211; Khoan HSS-Co tr\u00ean 304: 8\u201312 m\/ph; carbide: 40\u201370 m\/ph.<br \/>\n&#8211; L\u01b0\u1ee3ng ch\u1ea1y dao: t\u0103ng fz \u0111\u1ec3 tr\u00e1nh c\u1ecd x\u00e1t; gi\u1ea3m ap\/ae n\u1ebfu rung; d\u00f9ng t\u01b0\u1edbi ngu\u1ed9i \u00e1p cao cho khoan s\u00e2u v\u00e0 ti\u1ec7n r\u00e3nh.<\/p>\n<h3>4) Quy t\u1eafc th\u1ef1c chi\u1ebfn ch\u1ed1ng d\u00ednh b\u00e1m<\/h3>\n<p>&#8211; T\u01b0\u1edbi ngu\u1ed9i nhi\u1ec1u, \u00e1p l\u1ef1c cao; d\u00f9ng d\u1ea7u c\u1eaft c\u00f3 ph\u1ee5 gia EP (S-P) d\u00e0nh cho Inox.<br \/>\n&#8211; B\u1ec1 m\u1eb7t dao\/khoan \u0111\u00e1nh b\u00f3ng; ki\u1ec3m so\u00e1t runout < 0,01\u20130,02 mm.  \n- Gi\u1eef m\u00e9p s\u1eafc b\u1eb1ng chu k\u1ef3 thay dao ch\u1ee7 \u0111\u1ed9ng; m\u00e0i s\u1eafc v\u1edbi b\u00e1n k\u00ednh micro nh\u1ecf.\n\n\n\n<h2 id=\"toc-3-chon-vat-lieu-cho-khuon-dap-cat-dot-dot-lo-uon-vuo\">Ch\u1ecdn v\u1eadt li\u1ec7u cho KHU\u00d4N D\u1eacP (c\u1eaft \u0111\u1ed9t, \u0111\u1ed9t l\u1ed7, u\u1ed1n, vu\u1ed1t s\u00e2u, c\u1eaft x\u1ebb)<\/h2>\n<h3>1) C\u01a1 ch\u1ebf m\u00f2n c\u1ea7n \u201cb\u1eaft b\u1ec7nh\u201d tr\u01b0\u1edbc<\/h3>\n<p>&#8211; M\u00f2n d\u00ednh (galling), m\u00f2n d\u00e1n (adhesive wear): th\u01b0\u1eddng g\u1eb7p v\u1edbi 304\/316 \u2192 \u01b0u ti\u00ean th\u00e9p ch\u1ed1ng d\u00ednh, ph\u1ee7 CrN\/DLC, b\u1ec1 m\u1eb7t b\u00f3ng.<br \/>\n&#8211; M\u00f2n m\u00e0i m\u00f2n (abrasive): v\u1edbi b\u0103ng Inox c\u00e1n c\u1ee9ng, x\u1ebb d\u1ea3i\/dao x\u1ea3 b\u00eca \u2192 c\u1ea7n th\u00e9p nhi\u1ec1u carbide c\u1ee9ng ho\u1eb7c carbide nguy\u00ean kh\u1ed1i.<br \/>\n&#8211; M\u1ebb s\u1ee9t (chipping): khi khe h\u1edf nh\u1ecf, l\u1ef1c s\u1ed1c cao \u2192 c\u1ea7n th\u00e9p \u0111\u1ed9 dai cao, PM tool steel.<\/p>\n<h3>2) V\u1eadt li\u1ec7u khu\u00f4n\/punch theo c\u00f4ng \u0111o\u1ea1n<\/h3>\n<p>&#8211; \u0110\u1ed9t, c\u1eaft bi\u00ean (blanking\/piercing) Inox 304\/430 t\u1ea5m m\u1ecfng-trung:<br \/>\n  &#8211; Kinh t\u1ebf: D2\/SKD11 (58\u201361 HRC) + PVD TiCN\/TiAlN; ho\u1eb7c DC53 (60\u201362 HRC) cho \u0111\u1ed9 dai cao h\u01a1n.<br \/>\n  &#8211; N\u00e2ng cao: PM cold-work steel ch\u1ed1ng m\u1ebb\/m\u00f2n d\u00ednh: Uddeholm Caldie, Sleipner; B\u00f6hler K340; t\u0103ng tu\u1ed5i th\u1ecd 1,5\u20133 l\u1ea7n so D2.<br \/>\n  &#8211; C\u01b0\u1eddng \u0111\u1ed9\/m\u00e0i m\u00f2n cao (b\u0103ng c\u1ee9ng, s\u1ea3n l\u01b0\u1ee3ng l\u1edbn): PM gi\u00e0u V (Vanadis 8, CPM 10V) ho\u1eb7c carbide g\u1eafn; ph\u1ee7 AlCrN\/TiAlN.<br \/>\n&#8211; X\u1ebb d\u1ea3i, dao c\u1eaft cu\u1ed9n (slitting):<br \/>\n  &#8211; Dao tr\u00f2n: D2\/Cr12MoV cho c\u1ea5p ph\u1ed5 th\u00f4ng; 9CrSi cho kinh t\u1ebf; carbide cho \u0111\u1ed9 b\u1ec1n m\u00f2n t\u1ed1i \u0111a; \u0111\u1ed9 c\u1ee9ng m\u1ee5c ti\u00eau 60\u201363 HRC (th\u00e9p), 1500\u20131800 HV (carbide).<br \/>\n&#8211; U\u1ed1n (bending\/flanging):<br \/>\n  &#8211; DC53\/SLD-Magic ho\u1eb7c Caldie: ch\u1ecbu va \u0111\u1eadp, m\u00e9p s\u1eafc l\u00e2u m\u00f2n; ph\u1ee7 TiAlN ho\u1eb7c CrN \u0111\u1ec3 gi\u1ea3m d\u00ednh m\u00e9p.<br \/>\n&#8211; Vu\u1ed1t s\u00e2u (deep drawing)\/d\u1eadp \u0111\u1ecbnh h\u00ecnh Inox 304\/316:<br \/>\n  &#8211; Ch\u1ed1ng d\u00ednh l\u00e0 \u01b0u ti\u00ean: Vancron 40 (ma tr\u1eadn nitrid h\u00f3a, h\u1ec7 s\u1ed1 ma s\u00e1t r\u1ea5t th\u1ea5p) cho tu\u1ed5i th\u1ecd v\u01b0\u1ee3t tr\u1ed9i; thay th\u1ebf b\u1eb1ng th\u00e9p n\u1ec1n DC53 + th\u1ea5m nitrid + ph\u1ee7 CrN\/DLC.<br \/>\n  &#8211; B\u1ec1 m\u1eb7t g\u01b0\u01a1ng (Ra \u2264 0,1\u20130,2 \u00b5m) v\u00e0 b\u00f4i tr\u01a1n EP b\u1eaft bu\u1ed9c.<br \/>\n&#8211; D\u1eadp tinh (fine blanking) v\u00e0 chi ti\u1ebft dung sai kh\u1eaft khe:<br \/>\n  &#8211; PM steel s\u1ea1ch, h\u1ea1t m\u1ecbn: ASP 23\/30, Vanadis 4 Extra; ki\u1ec3m so\u00e1t \u0111\u1ed9 c\u1ee9ng 60\u201363 HRC; ph\u1ee7 PVD m\u1ecfng \u0111\u1ec3 gi\u1eef m\u00e9p r\u1ea5t s\u1eafc.<\/p>\n<h3>3) Ph\u1ee7, x\u1eed l\u00fd b\u1ec1 m\u1eb7t cho khu\u00f4n d\u1eadp<\/h3>\n<p>&#8211; PVD CrN: h\u1ec7 s\u1ed1 ma s\u00e1t th\u1ea5p, ch\u1ed1ng galling xu\u1ea5t s\u1eafc tr\u00ean austenitic.<br \/>\n&#8211; TiCN\/TiAlN\/AlCrN: ch\u1ecbu m\u00e0i m\u00f2n\/nhi\u1ec7t; d\u00f9ng cho blanking\/slitting t\u1ed1c \u0111\u1ed9 cao.<br \/>\n&#8211; DLC (ta-C\/a-C:H): si\u00eau ch\u1ed1ng d\u00ednh cho vu\u1ed1t s\u00e2u, th\u00e9p m\u1ecfng; tr\u00e1nh t\u1ea3i nhi\u1ec7t c\u1ef1c cao k\u00e9o d\u00e0i.<br \/>\n&#8211; Nitriding (gas\/ion): t\u0103ng c\u1ee9ng b\u1ec1 m\u1eb7t 900\u20131200 HV, t\u1ed1t cho u\u1ed1n\/\u0111\u1ed9t; k\u1ebft h\u1ee3p PVD cho hi\u1ec7u qu\u1ea3 c\u1ed9ng h\u01b0\u1edfng.<br \/>\n&#8211; \u0110\u00e1nh b\u00f3ng\/lapping: Ra m\u1ee5c ti\u00eau \u2264 0,1\u20130,2 \u00b5m \u1edf b\u1ec1 m\u1eb7t l\u00e0m vi\u1ec7c.<\/p>\n<h3>4) Nhi\u1ec7t luy\u1ec7n v\u00e0 x\u1eed l\u00fd l\u1ea1nh t\u0103ng tu\u1ed5i th\u1ecd<\/h3>\n<p>&#8211; DC53\/SKD11: 60\u201362 HRC; ram k\u00e9p 520\u2013540\u00b0C; x\u1eed l\u00fd l\u1ea1nh -80 \u0111\u1ebfn -196\u00b0C sau t\u00f4i gi\u00fap gi\u1ea3m austenit d\u01b0, m\u00f2n gi\u1ea3m 20\u201350%.<br \/>\n&#8211; PM steel (Vanadis 4 Extra, Caldie): 60\u201363 HRC; quy tr\u00ecnh chu\u1ea9n nh\u00e0 s\u1ea3n xu\u1ea5t; tr\u00e1nh qu\u00e1 c\u1ee9ng g\u00e2y gi\u00f2n m\u00e9p.<br \/>\n&#8211; Carbide: ch\u1ecdn h\u1ea1t m\u1ecbn, binder Co \u0111\u1ee7 d\u1ebbo dai (8\u201312%) cho \u0111\u1ed9t l\u1ed7 nh\u1ecf.<\/p>\n<h2 id=\"toc-4-thiet-ke-khuon-anh-huong-truc-tiep-toi-tuoi-tho-du\">Thi\u1ebft k\u1ebf khu\u00f4n \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1edbi tu\u1ed5i th\u1ecd d\u1ee5ng c\u1ee5<\/h2>\n<p>&#8211; Khe h\u1edf khu\u00f4n (die clearance) cho Inox: 8\u201315% b\u1ec1 d\u00e0y t\u1ea5m cho 304\/316; 6\u201310% cho 430; duplex h\u01b0\u1edbng t\u1edbi 10\u201316%. Khe h\u1edf qu\u00e1 nh\u1ecf \u2192 m\u1ebb m\u00e9p, d\u00ednh b\u00e1m; qu\u00e1 l\u1edbn \u2192 ba via cao.<br \/>\n&#8211; Bo R m\u00e9p ch\u00e0y\/c\u1ed1i: R = 0,02\u20130,05 mm gi\u00fap gi\u1ea3m m\u1ebb; v\u1edbi fine blanking d\u00f9ng m\u00e9p s\u1eafc h\u01a1n, ki\u1ec3m so\u00e1t ch\u1eb7t nhi\u1ec7t luy\u1ec7n.<br \/>\n&#8211; G\u00f3c nghi\u00eang c\u1eaft (shear angle) tr\u00ean dao c\u1eaft t\u1ea5m: gi\u1ea3m l\u1ef1c \u0111\u1ec9nh, ph\u00e2n b\u1ed1 t\u1ea3i, h\u1ea1 \u1ed3n.<br \/>\n&#8211; \u0110\u1ed9 c\u1ee9ng t\u1ea5m \u0111\u1ee1\/ty d\u1eabn: cao h\u01a1n v\u1eadt li\u1ec7u khu\u00f4n 2\u20133 HRC \u0111\u1ec3 tr\u00e1nh m\u00e0i c\u1ecd.<br \/>\n&#8211; B\u1ec1 m\u1eb7t d\u1eabn h\u01b0\u1edbng b\u00f3ng; h\u1ec7 th\u1ed1ng c\u0103n l\u1ec1 ch\u00ednh x\u00e1c \u0111\u1ec3 gi\u1ea3m l\u1ec7ch t\u00e2m, ch\u1ed1ng m\u1ebb c\u1ea1nh.<\/p>\n<h2 id=\"toc-5-boi-tron-dung-cach-chia-khoa-chong-galling-voi-ino\">B\u00f4i tr\u01a1n \u0111\u00fang c\u00e1ch: ch\u00eca kh\u00f3a ch\u1ed1ng galling v\u1edbi Inox<\/h2>\n<p>&#8211; D\u1ea7u EP g\u1ed1c kho\u00e1ng\/este ISO VG 68\u2013150 v\u1edbi ph\u1ee5 gia S\u2013P; v\u1edbi y\u00eau c\u1ea7u an to\u00e0n\/s\u1ea1ch, d\u00f9ng d\u1ea7u kh\u00f4ng ch\u1ee9a clo \u0111\u1ea1t hi\u1ec7u qu\u1ea3 EP t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<br \/>\n&#8211; Vu\u1ed1t s\u00e2u: d\u00f9ng d\u1ea7u nh\u1edbt \u0111\u1ed9 nh\u1edbt cao ho\u1eb7c nh\u0169 t\u01b0\u01a1ng \u0111\u1eb7c; c\u00f3 th\u1ec3 l\u00f3t film polymer m\u1ecfng (PE\/PET) \u0111\u1ec3 gi\u1ea3m ma s\u00e1t.<br \/>\n&#8211; B\u1ed5 sung ph\u1ee7 r\u1eafn MoS2\/graphite trong tr\u01b0\u1eddng h\u1ee3p t\u1ed1c \u0111\u1ed9 th\u1ea5p, t\u1ea3i cao.<br \/>\n&#8211; L\u00e0m m\u00e1t\/l\u1ecdc tu\u1ea7n ho\u00e0n t\u1ed1t \u0111\u1ec3 lo\u1ea1i h\u1ea1t m\u00e0i l\u00e0m x\u01b0\u1edbc khu\u00f4n.<\/p>\n<h2 id=\"toc-6-tinh-luc-cat-dot-nhanh-de-chon-vat-lieu-phu-hop\">T\u00ednh l\u1ef1c c\u1eaft \u0111\u1ed9t nhanh \u0111\u1ec3 ch\u1ecdn v\u1eadt li\u1ec7u ph\u00f9 h\u1ee3p<\/h2>\n<p>C\u00f4ng th\u1ee9c x\u1ea5p x\u1ec9 l\u1ef1c \u0111\u1ed9t F \u2248 L \u00d7 t \u00d7 \u03c4s, v\u1edbi L (mm) chu vi c\u1eaft, t (mm) chi\u1ec1u d\u00e0y, \u03c4s (N\/mm\u00b2) l\u00e0 b\u1ec1n c\u1eaft \u2248 0,6\u20130,75 \u00d7 UTS.<br \/>\nV\u00ed d\u1ee5: \u0110\u1ed9t bi\u00ean chi ti\u1ebft 304 t = 1,0 mm, L = 500 mm, UTS \u2248 700 MPa \u2192 \u03c4s \u2248 490 N\/mm\u00b2.<br \/>\nF \u2248 500 \u00d7 1,0 \u00d7 490 \u2248 245.000 N (245 kN).<br \/>\nH\u1ec7 qu\u1ea3:<br \/>\n&#8211; N\u1ebfu l\u1ef1c cao, \u01b0u ti\u00ean PM steel\/carbide \u0111\u1ec3 tr\u00e1nh m\u1ebb; t\u0103ng clearance v\u1ec1 10\u201312% v\u00e0 d\u00f9ng shear angle \u0111\u1ec3 h\u1ea1 l\u1ef1c \u0111\u1ec9nh; b\u1eaft bu\u1ed9c ph\u1ee7 ch\u1ed1ng d\u00ednh.<\/p>\n<h2 id=\"toc-7-lo-trinh-chon-vat-lieu-dung-cu-theo-muc-tieu-xuong\">L\u1ed9 tr\u00ecnh ch\u1ecdn v\u1eadt li\u1ec7u d\u1ee5ng c\u1ee5 theo m\u1ee5c ti\u00eau x\u01b0\u1edfng<\/h2>\n<p>&#8211; M\u1ee5c ti\u00eau kinh t\u1ebf, s\u1ea3n l\u01b0\u1ee3ng v\u1eeba:<br \/>\n  &#8211; Dao c\u1eaft: carbide ph\u1ee7 TiAlN; khoan\/taro: HSS-Co ho\u1eb7c PM HSS ph\u1ee7 TiCN\/CrN.<br \/>\n  &#8211; Khu\u00f4n \u0111\u1ed9t: DC53\/D2 + PVD TiCN; \u0111\u00e1nh b\u00f3ng t\u1ed1t; khe h\u1edf 8\u201312%.<br \/>\n&#8211; M\u1ee5c ti\u00eau t\u1ed1i \u0111a tu\u1ed5i th\u1ecd, s\u1ea3n l\u01b0\u1ee3ng l\u1edbn\/duplex:<br \/>\n  &#8211; Dao c\u1eaft: carbide h\u1ea1t m\u1ecbn, c\u1ea5p chuy\u00ean d\u1ee5ng cho Inox; PVD AlCrN\/TiAlN; t\u01b0\u1edbi \u00e1p cao.<br \/>\n  &#8211; Khu\u00f4n: PM steel (Caldie\/Vanadis 4 Extra\/K340); v\u00f9ng vu\u1ed1t s\u00e2u d\u00f9ng Vancron 40 ho\u1eb7c nitrid + CrN\/DLC.<br \/>\n&#8211; V\u1eadt li\u1ec7u c\u1ef1c m\u1ecfng\/inox m\u1ec1m d\u1ec5 d\u00ednh:<br \/>\n  &#8211; \u01afu ti\u00ean b\u1ec1 m\u1eb7t c\u1ef1c b\u00f3ng + CrN\/DLC; d\u00f9ng d\u1ea7u EP s\u1ea1ch; gi\u1ea3m t\u1ed1c, t\u0103ng b\u00f4i tr\u01a1n.<\/p>\n<h2 id=\"toc-8-check-list-nang-tuoi-tho-25-lan\">Check-list n\u00e2ng tu\u1ed5i th\u1ecd 2\u20135 l\u1ea7n<\/h2>\n<p>&#8211; Ch\u1ecdn \u0111\u00fang v\u1eadt li\u1ec7u n\u1ec1n (PM steel\/carbide cho t\u1ea3i cao; Vancron\/DLC cho d\u1eadp vu\u1ed1t).<br \/>\n&#8211; Nhi\u1ec7t luy\u1ec7n \u0111\u00fang chu\u1ea9n; c\u00e2n nh\u1eafc x\u1eed l\u00fd l\u1ea1nh \u0111\u1ec3 gi\u1ea3m austenit d\u01b0.<br \/>\n&#8211; PVD \u0111\u00fang vai tr\u00f2: CrN\/DLC ch\u1ed1ng d\u00ednh; AlCrN\/TiAlN ch\u1ed1ng m\u00e0i m\u00f2n\/nhi\u1ec7t.<br \/>\n&#8211; Khe h\u1edf khu\u00f4n t\u1ed1i \u01b0u; m\u00e9p s\u1eafc + bo R nh\u1ecf; shear angle n\u1ebfu c\u00f3 th\u1ec3.<br \/>\n&#8211; B\u1ec1 m\u1eb7t b\u00f3ng Ra \u2264 0,2 \u00b5m; b\u00f4i tr\u01a1n EP ph\u00f9 h\u1ee3p; l\u1ecdc d\u1ea7u s\u1ea1ch.<br \/>\n&#8211; Thay dao\/khu\u00f4n theo chu k\u1ef3; ghi nh\u1eadt k\u00fd m\u00f2n \u0111\u1ec3 t\u1ed1i \u01b0u kinh t\u1ebf d\u1ee5ng c\u1ee5.<\/p>\n<h2 id=\"toc-9-vi-du-trien-khai-thuc-te-ngan\">V\u00ed d\u1ee5 tri\u1ec3n khai th\u1ef1c t\u1ebf ng\u1eafn<\/h2>\n<p>&#8211; \u0110\u1ed9t 304 t=0,8 mm, s\u1ea3n l\u01b0\u1ee3ng 300.000 sp\/th\u00e1ng: chuy\u1ec3n t\u1eeb D2 (HRC 60) kh\u00f4ng ph\u1ee7 sang Caldie (HRC 61) + PVD CrN; t\u0103ng clearance t\u1eeb 6% l\u00ean 10%; d\u1ea7u EP VG100 \u2192 K\u1ebft qu\u1ea3: th\u1eddi gian gi\u1eefa 2 l\u1ea7n m\u00e0i t\u0103ng 2,7 l\u1ea7n, ba via \u1ed5n \u0111\u1ecbnh, lo\u1ea1i h\u1eb3n d\u00ednh b\u00e1m.<br \/>\n&#8211; Vu\u1ed1t s\u00e2u c\u1ed1c 316: d\u00f9ng DC53 + nitriding + DLC, \u0111\u00e1nh b\u00f3ng g\u01b0\u01a1ng; d\u1ea7u vu\u1ed1t \u0111\u1ed9 nh\u1edbt cao. Chu k\u1ef3 l\u00e0m s\u1ea1ch\/l\u1ecdc d\u1ea7u m\u1ed7i 2 tu\u1ea7n \u2192 T\u1ef7 l\u1ec7 x\u01b0\u1edbc gi\u1ea3m 80%, tu\u1ed5i th\u1ecd khu\u00f4n t\u0103ng ~3,2 l\u1ea7n.<\/p>\n<h2 id=\"toc-10-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<p>&#8211; Sandvik Coromant \u2013 Machining stainless steels (khuy\u1ebfn ngh\u1ecb v\u1eadt li\u1ec7u v\u00e0 th\u00f4ng s\u1ed1 c\u1eaft): https:\/\/www.sandvik.coromant.com<br \/>\n&#8211; Kennametal \u2013 Stainless steel machining application guides: https:\/\/www.kennametal.com<br \/>\n&#8211; Uddeholm \u2013 Datasheets Caldie, Vanadis 4 Extra, Vancron 40 (d\u1eadp ngu\u1ed9i, ch\u1ed1ng galling): https:\/\/www.uddeholm.com<br \/>\n&#8211; B\u00f6hler \u2013 K340 ISODUR cold work tool steel: https:\/\/www.bohler-edelstahl.com<br \/>\n&#8211; SSINA \u2013 Designer\u2019s Handbook for Stainless Steel: https:\/\/www.ssina.com<br \/>\n&#8211; ASM Handbook, Vol. 16 \u2013 Machining; Vol. 14A \u2013 Metalworking: Bulk Forming.<\/p>\n<h2 id=\"toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>\u0110\u1ec3 t\u0103ng tu\u1ed5i th\u1ecd dao c\u1eaft, khu\u00f4n d\u1eadp Inox 2\u20135 l\u1ea7n, h\u00e3y b\u1eaft \u0111\u1ea7u t\u1eeb \u201c\u0111\u00fang v\u1eadt li\u1ec7u \u2013 \u0111\u00fang ph\u1ee7 \u2013 \u0111\u00fang thi\u1ebft k\u1ebf\u201d:<br \/>\n&#8211; Dao c\u1eaft: carbide h\u1ea1t m\u1ecbn, PVD TiAlN\/AlCrN; HSS-Co\/PM HSS cho khoan\/taro; h\u00ecnh h\u1ecdc d\u01b0\u01a1ng, t\u01b0\u1edbi ngu\u1ed9i m\u1ea1nh.<br \/>\n&#8211; Khu\u00f4n d\u1eadp: \u01b0u ti\u00ean PM steel (Caldie, Vanadis 4 Extra, K340) cho \u0111\u1ed9t\/x\u1ebb; Vancron 40 ho\u1eb7c nitrid + CrN\/DLC cho vu\u1ed1t s\u00e2u ch\u1ed1ng d\u00ednh; nhi\u1ec7t luy\u1ec7n\/ch\u1ec9nh khe h\u1edf t\u1ed1i \u01b0u.<br \/>\n&#8211; Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t, b\u00f4i tr\u01a1n EP v\u00e0 ki\u1ec3m so\u00e1t quy tr\u00ecnh l\u00e0 3 \u201c\u0111i\u1ec3m c\u1ed9ng\u201d k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd, \u1ed5n \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng m\u00e9p c\u1eaft.<br \/>\nC\u1ea7n t\u01b0 v\u1ea5n v\u1eadt li\u1ec7u, gia c\u00f4ng, ph\u1ee7 b\u1ec1 m\u1eb7t theo case c\u1ee5 th\u1ec3? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t t\u1ed1i \u01b0u 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 dao c\u1eaft, khu\u00f4n d\u1eadp Inox: HSS, carbide, th\u00e9p PM, ph\u1ee7 PVD\/DLC, nhi\u1ec7t luy\u1ec7n, khe h\u1edf khu\u00f4n, b\u00f4i tr\u01a1n\u2014gi\u1ea3m d\u00ednh b\u00e1m v\u00e0 t\u0103ng tu\u1ed5i th\u1ecd 2\u20135 l\u1ea7n.<\/p>\n","protected":false},"author":7,"featured_media":1046,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1386","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\/1386","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=1386"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1386\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1046"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1386"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1386"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}