{"id":1832,"date":"2026-03-27T12:34:20","date_gmt":"2026-03-27T05:34:20","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/huong-dan-chon-phuong-phap-cat-inox-theo-do-day-va-do-chinh-xac\/"},"modified":"2026-03-27T12:34:20","modified_gmt":"2026-03-27T05:34:20","slug":"huong-dan-chon-phuong-phap-cat-inox-theo-do-day-va-do-chinh-xac","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/huong-dan-chon-phuong-phap-cat-inox-theo-do-day-va-do-chinh-xac\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p c\u1eaft Inox theo \u0111\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c"},"content":{"rendered":"<div class=\"custom-toc\">\n<h3>N\u1ed9i dung ch\u00ednh<\/h3>\n<ul>\n<li><a href=\"#toc-0-nhung-yeu-to-can-xac-dinh-truoc-khi-chon-phuong-ph\">Nh\u1eefng y\u1ebfu t\u1ed1 c\u1ea7n x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc khi ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p<\/a><\/li>\n<li><a href=\"#toc-1-tong-quan-nhanh-cac-phuong-phap-cat-inox\">T\u1ed5ng quan nhanh c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u1eaft Inox<\/a><\/li>\n<li><a href=\"#toc-2-bo-chon-nhanh-theo-do-day-va-do-chinh-xac\">B\u1ed9 ch\u1ecdn nhanh theo \u0111\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c<\/a><\/li>\n<li><a href=\"#toc-3-so-sanh-ky-thuat-cot-loi-theo-yeu-cau-chat-luong\">So s\u00e1nh k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i theo y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng<\/a><\/li>\n<li><a href=\"#toc-4-chon-khi-tro-cat-cho-laserplasma-khi-cat-inox\">Ch\u1ecdn kh\u00ed tr\u1ee3 c\u1eaft cho Laser\/Plasma khi c\u1eaft Inox<\/a><\/li>\n<li><a href=\"#toc-5-cat-onghop-inox-nen-dung-gi\">C\u1eaft \u1ed1ng\/h\u1ed9p Inox: n\u00ean d\u00f9ng g\u00ec?<\/a><\/li>\n<li><a href=\"#toc-6-quy-tac-thiet-ke-de-cat-inox-hieu-qua\">Quy t\u1eafc thi\u1ebft k\u1ebf \u0111\u1ec3 c\u1eaft Inox hi\u1ec7u qu\u1ea3<\/a><\/li>\n<li><a href=\"#toc-7-xu-ly-sau-cat-va-bao-toan-kha-nang-chong-an-mon\">X\u1eed l\u00fd sau c\u1eaft v\u00e0 b\u1ea3o to\u00e0n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/a><\/li>\n<li><a href=\"#toc-8-bai-toan-chi-phi-khi-nao-chon-phuong-an-nao\">B\u00e0i to\u00e1n chi ph\u00ed: khi n\u00e0o ch\u1ecdn ph\u01b0\u01a1ng \u00e1n n\u00e0o?<\/a><\/li>\n<li><a href=\"#toc-9-tinh-huong-thuc-te-tai-xuong\">T\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf t\u1ea1i x\u01b0\u1edfng<\/a><\/li>\n<li><a href=\"#toc-10-nguon-tham-khao-ky-thuat\">Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt<\/a><\/li>\n<li><a href=\"#toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Trong gia c\u00f4ng Inox, ch\u1ecdn \u0111\u00fang ph\u01b0\u01a1ng ph\u00e1p c\u1eaft theo \u0111\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c y\u00eau c\u1ea7u quy\u1ebft \u0111\u1ecbnh 70\u201380% n\u0103ng su\u1ea5t, chi ph\u00ed v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng m\u00e9p c\u1eaft. B\u00e0i vi\u1ebft n\u00e0y l\u00e0 h\u01b0\u1edbng d\u1eabn \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 b\u1ea1n ra quy\u1ebft \u0111\u1ecbnh nhanh v\u00e0 \u0111\u00fang, t\u00e1ch b\u1ea1ch t\u1eebng \u0111\u1ed9 d\u00e0y, t\u1eebng c\u1ea5p dung sai v\u00e0 b\u1ec1 m\u1eb7t \u0111\u00f2i h\u1ecfi. Ch\u1ee7 \u0111\u1ec1 n\u00e0y n\u1eb1m trong b\u1ee9c tranh t\u1ed5ng th\u1ec3 c\u1ee7a \u201cC\u1ea9m nang K\u1ef9 thu\u1eadt Gia c\u00f4ng Inox\u201d, nh\u01b0ng n\u1ed9i dung d\u01b0\u1edbi \u0111\u00e2y l\u00e0 t\u00e0i li\u1ec7u \u0111\u1ed9c l\u1eadp \u0111\u1ec3 d\u00f9ng ngay t\u1ea1i x\u01b0\u1edfng.<\/p>\n<h2 id=\"toc-0-nhung-yeu-to-can-xac-dinh-truoc-khi-chon-phuong-ph\">Nh\u1eefng y\u1ebfu t\u1ed1 c\u1ea7n x\u00e1c \u0111\u1ecbnh tr\u01b0\u1edbc khi ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p<\/h2>\n<p>&#8211; \u0110\u1ed9 d\u00e0y v\u1eadt li\u1ec7u: t\u1ea5m m\u1ecfng (\u22643 mm), trung b\u00ecnh (3\u201312 mm), d\u00e0y (12\u201330 mm), si\u00eau d\u00e0y (>30 mm).<br \/>\n&#8211; C\u1ea5p ch\u00ednh x\u00e1c\/dung sai v\u00e0 m\u00e9p c\u1eaft:<br \/>\n  \u2022 R\u1ea5t cao: \u00b10,01\u20130,05 mm, m\u00e9p kh\u00f4ng bi\u1ebfn c\u1ee9ng\/kh\u00f4ng HAZ.<br \/>\n  \u2022 Cao: \u00b10,05\u20130,15 mm, HAZ nh\u1ecf, m\u00e9p s\u1ea1ch.<br \/>\n  \u2022 Trung b\u00ecnh: \u00b10,3\u20130,5 mm, c\u00f3 HAZ\/dross v\u1eeba.<br \/>\n  \u2022 Th\u00f4: >\u00b11 mm, m\u00e9p nh\u00e1m, c\u1ea7n gia c\u00f4ng sau.<br \/>\n&#8211; V\u1eadt li\u1ec7u Inox: austenitic (304\/316), ferritic (430), duplex\u2026; Inox ph\u1ea3n x\u1ea1 t\u1ed1t ph\u00f9 h\u1ee3p Laser Fiber, plasma HD, waterjet.<br \/>\n&#8211; H\u00ecnh d\u1ea1ng: c\u1eaft th\u1eb3ng, bi\u00ean d\u1ea1ng ph\u1ee9c t\u1ea1p, l\u1ed7 nh\u1ecf; quy t\u1eafc t\u1ed1i thi\u1ec3u k\u00edch th\u01b0\u1edbc l\u1ed7 ph\u1ee5 thu\u1ed9c \u0111\u1ed9 d\u00e0y v\u00e0 c\u00f4ng ngh\u1ec7.<br \/>\n&#8211; Y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t v\u00e0 v\u1ec7 sinh: ng\u00e0nh th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c c\u1ea7n kh\u00f4ng b\u1ecb oxy h\u00f3a m\u00e9p, \u01b0u ti\u00ean Nit\u01a1, Waterjet, EDM.<br \/>\n&#8211; S\u1ea3n l\u01b0\u1ee3ng v\u00e0 chi ph\u00ed: \u0111\u01a1n chi\u1ebfc, l\u1eb7p l\u1ea1i, nesting, th\u1eddi gian giao h\u00e0ng.<br \/>\n&#8211; Bi\u1ebfn d\u1ea1ng nhi\u1ec7t: t\u1ea5m m\u1ecfng d\u1ec5 cong v\u00eanh khi c\u1eaft nhi\u1ec7t; ch\u1ecdn c\u00f4ng ngh\u1ec7 l\u1ea1nh ho\u1eb7c g\u00e1 k\u1eb9p h\u1ee3p l\u00fd.<\/p>\n<h2 id=\"toc-1-tong-quan-nhanh-cac-phuong-phap-cat-inox\">T\u1ed5ng quan nhanh c\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u1eaft Inox<\/h2>\n<h3>C\u1eaft c\u01a1 kh\u00ed: c\u1eaft ch\u1ea5n\/dao c\u1eaft t\u00f4n, x\u1ebb b\u0103ng<\/h3>\n<p>&#8211; D\u00f9ng dao c\u1eaft tuy\u1ebfn t\u00ednh cho \u0111\u01b0\u1eddng th\u1eb3ng.<br \/>\n&#8211; D\u00e0y ph\u00f9 h\u1ee3p: 0,4\u201312 mm (t\u00f9y m\u00e1y v\u00e0 chi\u1ec1u d\u00e0i c\u1eaft).<br \/>\n&#8211; Dung sai \u0111i\u1ec3n h\u00ecnh: \u00b10,2\u20130,5 mm, m\u00e9p c\u00f3 ba via nh\u1eb9, kh\u00f4ng HAZ.<br \/>\n&#8211; \u01afu \u0111i\u1ec3m: r\u1ebb nh\u1ea5t\/nhanh cho c\u1eaft th\u1eb3ng, kh\u00f4ng bi\u1ebfn m\u00e0u. Nh\u01b0\u1ee3c: kh\u00f4ng c\u1eaft bi\u00ean d\u1ea1ng, g\u00e2y cong v\u00eanh t\u1ea5m m\u1ecfng n\u1ebfu l\u01b0\u1ee1i m\u00f2n\/\u0111\u1ed9 h\u1edf sai.<\/p>\n<h3>C\u01b0a \u0111\u0129a\/c\u01b0a v\u00f2ng (bandsaw)\/m\u00e1y c\u1eaft \u0111\u00e1 m\u00e0i<\/h3>\n<p>&#8211; D\u00f9ng cho thanh, \u1ed1ng, t\u1ea5m d\u00e0y, c\u1eaft th\u1eb3ng ho\u1eb7c g\u00f3c.<br \/>\n&#8211; Dung sai: kho\u1ea3ng \u00b10,3\u20130,8 mm; kerf 1\u20132 mm; kh\u00f4ng HAZ.<br \/>\n&#8211; N\u0103ng su\u1ea5t trung b\u00ecnh, ph\u00f9 h\u1ee3p c\u1eaft b\u00f3 th\u00e9p h\u00ecnh, \u1ed1ng h\u1ed9p.<\/p>\n<h3>\u0110\u1ed9t d\u1eadp\/nibbling CNC<\/h3>\n<p>&#8211; L\u00fd t\u01b0\u1edfng cho t\u1ea5m m\u1ecfng \u0111\u1ebfn trung b\u00ecnh (\u22644\u20136 mm), \u0111\u1ee5c l\u1ed7, \u0111\u1ed9t l\u01b0\u1edbi, bi\u00ean d\u1ea1ng b\u1eadc.<br \/>\n&#8211; Dung sai: \u00b10,1\u20130,3 mm; c\u00f3 th\u1ec3 c\u1ea7n m\u00e0i ba via.<br \/>\n&#8211; N\u0103ng su\u1ea5t cao cho s\u1ea3n l\u01b0\u1ee3ng l\u1edbn, khu\u00f4n ti\u00eau chu\u1ea9n phong ph\u00fa.<\/p>\n<h3>Laser (Fiber \u01b0u th\u1ebf cho Inox)<\/h3>\n<p>&#8211; C\u1eaft nhanh, ch\u00ednh x\u00e1c, bi\u00ean d\u1ea1ng ph\u1ee9c t\u1ea1p.<br \/>\n&#8211; D\u00e0y kh\u1ea3 d\u1ee5ng: \u0111\u1ebfn ~20\u201325 mm v\u1edbi ngu\u1ed3n 8\u201312 kW; m\u1ecfng 0,3\u20133 mm \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 r\u1ea5t cao.<br \/>\n&#8211; Dung sai: \u00b10,05\u20130,2 mm t\u00f9y \u0111\u1ed9 d\u00e0y v\u00e0 m\u00e1y; kerf 0,1\u20130,3 mm; HAZ r\u1ea5t nh\u1ecf.<br \/>\n&#8211; Kh\u00ed tr\u1ee3 c\u1eaft: Nit\u01a1 cho m\u00e9p s\u00e1ng, kh\u00f4ng oxy h\u00f3a; Oxy cho t\u1ed1c \u0111\u1ed9 nh\u01b0ng m\u00e9p \u0111en\/oxy h\u00f3a; kh\u00ed n\u00e9n l\u00e0 gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m.<\/p>\n<h3>Plasma (th\u01b0\u1eddng\/HD)<\/h3>\n<p>&#8211; Ph\u00f9 h\u1ee3p t\u1ea5m trung b\u00ecnh \u0111\u1ebfn d\u00e0y; t\u1ed1c \u0111\u1ed9 cao h\u01a1n waterjet, r\u1ebb h\u01a1n laser c\u00f4ng su\u1ea5t l\u1edbn.<br \/>\n&#8211; D\u00e0y: ~3\u201350 mm (HD plasma cho m\u00e9p \u0111\u1eb9p h\u01a1n).<br \/>\n&#8211; Dung sai: \u00b10,3\u20131,0 mm; kerf 1\u20132 mm; HAZ \u0111\u00e1ng k\u1ec3; c\u00f3 x\u1ec9\/dross c\u1ea7n l\u00e0m s\u1ea1ch.<\/p>\n<h3>Waterjet m\u00e0i m\u00f2n<\/h3>\n<p>&#8211; C\u1eaft \u201cl\u1ea1nh\u201d, kh\u00f4ng HAZ\/kh\u00f4ng bi\u1ebfn m\u00e0u, gi\u1eef nguy\u00ean t\u00ednh ch\u1ed1ng \u0103n m\u00f2n.<br \/>\n&#8211; D\u00e0y: \u0111\u1ebfn 150\u2013200 mm (t\u00f9y m\u00e1y); bi\u00ean d\u1ea1ng ph\u1ee9c t\u1ea1p t\u1ed1t.<br \/>\n&#8211; Dung sai: \u00b10,05\u20130,15 mm v\u1edbi \u0111\u1ea7u b\u00f9 taper; kerf ~0,8\u20131,2 mm; t\u1ed1c \u0111\u1ed9 ch\u1eadm; chi ph\u00ed\/gi\u1edd cao.<\/p>\n<h3>EDM c\u1eaft d\u00e2y<\/h3>\n<p>&#8211; Ch\u00ednh x\u00e1c c\u1ef1c cao cho chi ti\u1ebft d\u00e0y v\u00e0 khe h\u1eb9p, khu\u00f4n dao.<br \/>\n&#8211; D\u00e0y: \u0111\u1ebfn 300 mm+; dung sai \u00b10,005\u20130,02 mm; b\u1ec1 m\u1eb7t r\u1ea5t \u0111\u1eb9p; t\u1ed1c \u0111\u1ed9 ch\u1eadm; ch\u1ec9 d\u00f9ng cho d\u1eabn \u0111i\u1ec7n v\u00e0 th\u01b0\u1eddng l\u00e0 chi ti\u1ebft gi\u00e1 tr\u1ecb cao.<\/p>\n<h2 id=\"toc-2-bo-chon-nhanh-theo-do-day-va-do-chinh-xac\">B\u1ed9 ch\u1ecdn nhanh theo \u0111\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c<\/h2>\n<h3>Inox m\u1ecfng \u22641,5 mm<\/h3>\n<p>&#8211; Ch\u00ednh x\u00e1c cao (\u00b10,05\u20130,1 mm), m\u00e9p s\u00e1ng, kh\u00f4ng bi\u1ebfn m\u00e0u: Laser Fiber + Nit\u01a1.<br \/>\n&#8211; Ch\u00ednh x\u00e1c trung b\u00ecnh, \u0111\u01b0\u1eddng th\u1eb3ng, chi ph\u00ed th\u1ea5p: C\u1eaft ch\u1ea5n\/dao c\u1eaft.<br \/>\n&#8211; L\u1ed7 d\u1eadp nhi\u1ec1u, t\u1ea5m trang tr\u00ed\/l\u01b0\u1edbi: \u0110\u1ed9t d\u1eadp CNC (c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p m\u00e0i ba via).<br \/>\n&#8211; L\u01b0u \u00fd: tr\u00e1nh Plasma v\u00ec d\u1ec5 cong, x\u1ec9; n\u1ebfu b\u1eaft bu\u1ed9c, d\u00f9ng c\u00f4ng su\u1ea5t th\u1ea5p, g\u00e1 ph\u1eb3ng.<\/p>\n<h3>1,5\u20133 mm<\/h3>\n<p>&#8211; \u01afu ti\u00ean: Laser Fiber + Nit\u01a1 (t\u1ed1c \u0111\u1ed9 r\u1ea5t cao, bi\u00ean d\u1ea1ng ph\u1ee9c).<br \/>\n&#8211; N\u0103ng su\u1ea5t cao, l\u1eb7p l\u1ea1i, nhi\u1ec1u l\u1ed7 chu\u1ea9n: \u0110\u1ed9t d\u1eadp CNC ho\u1eb7c combo \u0111\u1ed9t + laser.<br \/>\n&#8211; \u0110\u01b0\u1eddng th\u1eb3ng d\u00e0i, m\u00e9p ch\u1ea5p nh\u1eadn m\u00e0i nh\u1eb9: C\u1eaft ch\u1ea5n.<\/p>\n<h3>3\u20138 mm<\/h3>\n<p>&#8211; Ch\u00ednh x\u00e1c cao, m\u00e9p \u0111\u1eb9p: Laser Fiber (5\u20138 kW), Nit\u01a1 cho b\u1ec1 m\u1eb7t s\u00e1ng.<br \/>\n&#8211; C\u00e2n b\u1eb1ng chi ph\u00ed\u2013n\u0103ng su\u1ea5t, dung sai \u00b10,3\u20130,6 mm: Plasma HD.<br \/>\n&#8211; Kh\u00f4ng HAZ, y\u00eau c\u1ea7u th\u1ef1c ph\u1ea9m\/d\u01b0\u1ee3c: Waterjet.<\/p>\n<h3>8\u201315 mm<\/h3>\n<p>&#8211; \u01afu ti\u00ean ch\u1ea5t l\u01b0\u1ee3ng: Laser Fiber c\u00f4ng su\u1ea5t l\u1edbn (8\u201312 kW) v\u1edbi Nit\u01a1 ho\u1eb7c c\u1eaft hai pass; ho\u1eb7c Waterjet n\u1ebfu c\u1ea7n lo\u1ea1i b\u1ecf HAZ ho\u00e0n to\u00e0n.<br \/>\n&#8211; Ti\u1ebft ki\u1ec7m chi ph\u00ed, ti\u1ebfn \u0111\u1ed9 nhanh, ch\u1ea5p nh\u1eadn l\u00e0m s\u1ea1ch m\u00e9p: Plasma HD.<br \/>\n&#8211; L\u1ed7 nh\u1ecf h\u01a1n \u0111\u1ed9 d\u00e0y: Laser\/Waterjet; plasma th\u01b0\u1eddng c\u1ea7n l\u1ed7 \u22651,5\u00d7t.<\/p>\n<h3>15\u201330 mm<\/h3>\n<p>&#8211; Ch\u1ea5t l\u01b0\u1ee3ng\/kh\u00f4ng HAZ: Waterjet.<br \/>\n&#8211; C\u00e2n b\u1eb1ng chi ph\u00ed\u2013t\u1ed1c \u0111\u1ed9: Plasma HD, sau c\u1eaft m\u00e0i m\u00e9p\/ti\u1ec7n x\u1ec9.<br \/>\n&#8211; Bi\u00ean d\u1ea1ng c\u1ef1c ch\u00ednh x\u00e1c, khe h\u1eb9p: EDM c\u1eaft d\u00e2y (cho chi ti\u1ebft gi\u00e1 tr\u1ecb cao).<br \/>\n&#8211; C\u1eaft th\u1eb3ng thanh\/t\u1ea5m: C\u01b0a v\u00f2ng.<\/p>\n<h3>>30 mm<\/h3>\n<p>&#8211; Kh\u00f4ng HAZ, ch\u00ednh x\u00e1c: Waterjet; EDM cho chi ti\u1ebft c\u1ea7n c\u1ea5p ch\u00ednh x\u00e1c r\u1ea5t cao.<br \/>\n&#8211; C\u1eaft th\u1eb3ng, chu\u1ea9n b\u1ecb ph\u00f4i: C\u01b0a v\u00f2ng\/c\u01b0a \u0111\u0129a.<br \/>\n&#8211; L\u01b0u \u00fd: Oxy-fuel kh\u00f4ng ph\u00f9 h\u1ee3p Inox do l\u1edbp oxit crom c\u1ea3n ch\u00e1y; kh\u00f4ng d\u00f9ng cho th\u00e9p kh\u00f4ng g\u1ec9.<\/p>\n<h2 id=\"toc-3-so-sanh-ky-thuat-cot-loi-theo-yeu-cau-chat-luong\">So s\u00e1nh k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i theo y\u00eau c\u1ea7u ch\u1ea5t l\u01b0\u1ee3ng<\/h2>\n<p>&#8211; Laser Fiber<br \/>\n  \u2022 Dung sai: kho\u1ea3ng \u00b10,05\u20130,2 mm (t\u1ea5m m\u1ecfng t\u1ed1t nh\u1ea5t).<br \/>\n  \u2022 Kerf: 0,1\u20130,3 mm; HAZ r\u1ea5t nh\u1ecf (v\u00e0i ch\u1ee5c\u2013v\u00e0i tr\u0103m micron).<br \/>\n  \u2022 M\u00e9p s\u00e1ng khi d\u00f9ng Nit\u01a1; oxy l\u00e0m m\u00e9p s\u1eabm m\u00e0u\/oxy h\u00f3a.<br \/>\n&#8211; Waterjet<br \/>\n  \u2022 Dung sai: \u00b10,05\u20130,15 mm (\u0111\u1ea7u b\u00f9 taper); kh\u00f4ng HAZ.<br \/>\n  \u2022 Kerf: 0,8\u20131,2 mm; t\u1ed1c \u0111\u1ed9 ch\u1eadm h\u01a1n laser; b\u1ec1 m\u1eb7t m\u1ecbn, kh\u00f4ng bi\u1ebfn m\u00e0u.<br \/>\n&#8211; Plasma HD<br \/>\n  \u2022 Dung sai: \u00b10,3\u20131,0 mm; HAZ 0,5\u20131,5 mm; m\u00e9p c\u1ea7n l\u00e0m s\u1ea1ch.<br \/>\n  \u2022 Kerf: 1\u20132 mm; n\u0103ng su\u1ea5t cao cho t\u1ea5m d\u00e0y.<br \/>\n&#8211; C\u1eaft c\u01a1 kh\u00ed (ch\u1ea5n\/c\u01b0a)<br \/>\n  \u2022 Kh\u00f4ng HAZ; dung sai \u00b10,2\u20130,8 mm t\u00f9y thi\u1ebft b\u1ecb; gi\u1edbi h\u1ea1n bi\u00ean d\u1ea1ng.<\/p>\n<h2 id=\"toc-4-chon-khi-tro-cat-cho-laserplasma-khi-cat-inox\">Ch\u1ecdn kh\u00ed tr\u1ee3 c\u1eaft cho Laser\/Plasma khi c\u1eaft Inox<\/h2>\n<p>&#8211; Nit\u01a1 (N2) cho Laser:<br \/>\n  \u2022 M\u00e9p s\u00e1ng, kh\u00f4ng oxy h\u00f3a; gi\u1eef t\u00ednh ch\u1ed1ng \u0103n m\u00f2n; ph\u00f9 h\u1ee3p s\u1ea3n ph\u1ea9m inox trang tr\u00ed\/food-grade.<br \/>\n  \u2022 C\u1ea7n \u00e1p su\u1ea5t cao (12\u201320 bar), chi ph\u00ed kh\u00ed cao h\u01a1n.<br \/>\n&#8211; Oxy (O2) cho Laser:<br \/>\n  \u2022 T\u0103ng t\u1ed1c \u0111\u1ed9\/\u0111\u1ed9 d\u00e0y c\u1eaft, nh\u01b0ng m\u00e9p b\u1ecb oxy h\u00f3a (m\u00e0u n\u00e2u\/\u0111en), c\u1ea7n passivation\/pickle sau c\u1eaft; gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n c\u1ee5c b\u1ed9.<br \/>\n&#8211; Kh\u00ed n\u00e9n:<br \/>\n  \u2022 Chi ph\u00ed th\u1ea5p, t\u1ed1c \u0111\u1ed9 kh\u00e1; b\u1ec1 m\u1eb7t t\u1ed1t cho h\u00e0ng c\u01a1 kh\u00ed chung, kh\u00f4ng y\u00eau c\u1ea7u th\u1ea9m m\u1ef9 cao.<br \/>\n&#8211; Plasma:<br \/>\n  \u2022 D\u00f9ng N2, H35 (65% Ar\/35% H2), ho\u1eb7c h\u1ed7n h\u1ee3p chuy\u00ean d\u1ee5ng cho inox \u0111\u1ec3 c\u1ea3i thi\u1ec7n m\u00e9p; v\u1eabn c\u00f3 HAZ v\u00e0 x\u1ec9.<\/p>\n<h2 id=\"toc-5-cat-onghop-inox-nen-dung-gi\">C\u1eaft \u1ed1ng\/h\u1ed9p Inox: n\u00ean d\u00f9ng g\u00ec?<\/h2>\n<p>&#8211; \u1ed0ng\/h\u1ed9p m\u1ecfng\u2013trung b\u00ecnh (0,8\u20136 mm), bi\u00ean d\u1ea1ng ph\u1ee9c t\u1ea1p, l\u1ed7\/then, v\u00e1t m\u00e9p: Laser Tube cho dung sai \u00b10,1\u20130,2 mm, n\u0103ng su\u1ea5t cao.<br \/>\n&#8211; C\u1eaft th\u1eb3ng h\u00e0ng lo\u1ea1t, d\u00e0y v\u1eeba: C\u01b0a v\u00f2ng\/c\u01b0a \u0111\u0129a h\u1ee3p kim, c\u00f3 d\u1eabn h\u01b0\u1edbng ch\u1ed1ng ba via.<br \/>\n&#8211; D\u00e0y l\u1edbn, y\u00eau c\u1ea7u m\u1ed9ng gh\u00e9p ch\u00ednh x\u00e1c: Waterjet (\u00edt ph\u1ed5 bi\u1ebfn h\u01a1n), ho\u1eb7c gia c\u00f4ng sau c\u1eaft.<\/p>\n<h2 id=\"toc-6-quy-tac-thiet-ke-de-cat-inox-hieu-qua\">Quy t\u1eafc thi\u1ebft k\u1ebf \u0111\u1ec3 c\u1eaft Inox hi\u1ec7u qu\u1ea3<\/h2>\n<p>&#8211; K\u00edch th\u01b0\u1edbc l\u1ed7 t\u1ed1i thi\u1ec3u so v\u1edbi \u0111\u1ed9 d\u00e0y t:<br \/>\n  \u2022 Laser: \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 \u2265 1,0\u20131,2\u00d7t.<br \/>\n  \u2022 Plasma: \u2265 1,5\u00d7t.<br \/>\n  \u2022 Waterjet: \u2265 0,8\u20131,0\u00d7t (t\u00f9y \u0111\u01b0\u1eddng k\u00ednh tia).<br \/>\n  \u2022 \u0110\u1ed9t d\u1eadp: \u2265 1,0\u00d7t (c\u1ed9ng 0,2 mm \u0111\u1ec3 gi\u1ea3m ba via).<br \/>\n&#8211; Kho\u1ea3ng c\u00e1ch bi\u00ean t\u1ed1i thi\u1ec3u: \u2265 1\u00d7t (laser), \u2265 1,5\u00d7t (plasma\/\u0111\u1ed9t).<br \/>\n&#8211; Lead-in\/lead-out, micro-joint \u0111\u1ec3 ch\u1ed1ng b\u1eadt ph\u00f4i, t\u1ed1i \u01b0u h\u01b0\u1edbng c\u1eaft gi\u1ea3m bi\u1ebfn d\u1ea1ng.<br \/>\n&#8211; B\u00f9 kerf trong CAM \u0111\u1ec3 \u0111\u1ea1t k\u00edch th\u01b0\u1edbc danh ngh\u0129a.<br \/>\n&#8211; Nesting h\u1ee3p l\u00fd t\u0103ng t\u1ef7 l\u1ec7 s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u v\u00e0 gi\u1ea3m cong v\u00eanh.<\/p>\n<h2 id=\"toc-7-xu-ly-sau-cat-va-bao-toan-kha-nang-chong-an-mon\">X\u1eed l\u00fd sau c\u1eaft v\u00e0 b\u1ea3o to\u00e0n kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/h2>\n<p>&#8211; M\u00e0i ba via, l\u00e0m s\u1ea1ch x\u1ec9\/dross (\u0111\u1eb7c bi\u1ec7t plasma).<br \/>\n&#8211; T\u1ea9y m\u1ed1i m\u00e0u\/nhi\u1ec5m b\u1ea9n sau c\u1eaft nhi\u1ec7t b\u1eb1ng h\u00f3a ch\u1ea5t t\u1ea9y\/pickling v\u00e0 th\u1ee5 \u0111\u1ed9ng h\u00f3a (passivation) theo ASTM A380\/A967 \u0111\u1ec3 kh\u00f4i ph\u1ee5c l\u1edbp th\u1ee5 \u0111\u1ed9ng crom.<br \/>\n&#8211; R\u1eeda s\u1ea1ch m\u00e0i m\u00f2n garnet (waterjet) tr\u01b0\u1edbc khi h\u00e0n\/s\u01a1n.<br \/>\n&#8211; V\u1edbi y\u00eau c\u1ea7u b\u1ec1 m\u1eb7t hairline\/No.4: re-graining b\u1eb1ng b\u0103ng nh\u00e1m sau c\u1eaft.<\/p>\n<h2 id=\"toc-8-bai-toan-chi-phi-khi-nao-chon-phuong-an-nao\">B\u00e0i to\u00e1n chi ph\u00ed: khi n\u00e0o ch\u1ecdn ph\u01b0\u01a1ng \u00e1n n\u00e0o?<\/h2>\n<p>&#8211; Chi ph\u00ed th\u1ea5p nh\u1ea5t\/\u0111\u01b0\u1eddng th\u1eb3ng: C\u1eaft ch\u1ea5n\/c\u01b0a.<br \/>\n&#8211; Chi ph\u00ed\u2013t\u1ed1c \u0111\u1ed9 t\u1ed1i \u01b0u cho bi\u00ean d\u1ea1ng m\u1ecfng\u2013trung b\u00ecnh: Laser Fiber.<br \/>\n&#8211; Chi ph\u00ed th\u1ea5p cho t\u1ea5m d\u00e0y, dung sai trung b\u00ecnh: Plasma HD (c\u1ed9ng ph\u00ed l\u00e0m s\u1ea1ch m\u00e9p).<br \/>\n&#8211; Ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1i \u0111a, kh\u00f4ng HAZ, s\u1ea3n ph\u1ea9m cao c\u1ea5p: Waterjet (chi ph\u00ed\/gi\u1edd cao h\u01a1n).<br \/>\n&#8211; Dung sai si\u00eau ch\u1eb7t\/khu\u00f4n: EDM (chi ph\u00ed v\u00e0 th\u1eddi gian cao nh\u1ea5t, d\u00f9ng khi th\u1ef1c s\u1ef1 c\u1ea7n).<\/p>\n<h2 id=\"toc-9-tinh-huong-thuc-te-tai-xuong\">T\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf t\u1ea1i x\u01b0\u1edfng<\/h2>\n<p>&#8211; Case 1: Inox 304 t\u1ea5m 2 mm, t\u1ee7 \u0111i\u1ec7n c\u00f4ng nghi\u1ec7p, m\u00e9p s\u1ea1ch, l\u1ed7 \u00d86\u2013\u00d820 mm s\u1ed1 l\u01b0\u1ee3ng l\u1edbn<br \/>\n  \u2022 Gi\u1ea3i ph\u00e1p: Laser Fiber + N2. Dung sai \u0111\u1ea1t \u00b10,1 mm; n\u0103ng su\u1ea5t cao; kh\u00f4ng c\u1ea7n x\u1eed l\u00fd oxy h\u00f3a.<br \/>\n&#8211; Case 2: Inox 316L t\u1ea5m 20 mm, m\u1eb7t b\u00edch cho m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n, kh\u00f4ng ch\u1ea5p nh\u1eadn HAZ<br \/>\n  \u2022 Gi\u1ea3i ph\u00e1p: Waterjet. Dung sai \u00b10,1\u20130,15 mm; kh\u00f4ng HAZ; sau \u0111\u00f3 phay tinh l\u1ed7 ch\u1ed1t n\u1ebfu c\u1ea7n.<\/p>\n<h2 id=\"toc-10-nguon-tham-khao-ky-thuat\">Ngu\u1ed3n tham kh\u1ea3o k\u1ef9 thu\u1eadt<\/h2>\n<p>&#8211; ISO 9013:2017 \u2013 Thermal cutting \u2014 Classification of thermal cuts \u2014 Quality tolerances.<br \/>\n&#8211; ASTM A380\/A967 \u2013 Cleaning, Descaling, and Passivation of Stainless Steel Parts.<br \/>\n&#8211; TRUMPF Application Knowledge: Laser cutting stainless steel with nitrogen vs oxygen.<br \/>\n&#8211; Hypertherm Technical White Paper: Plasma cutting stainless steel and aluminum.<br \/>\n&#8211; OMAX\/Hypertherm Waterjet resources: taper compensation and cutting accuracy.<br \/>\n&#8211; TWI (The Welding Institute): Cutting of stainless steels \u2013 overview of processes.<\/p>\n<h2 id=\"toc-11-ket-luan\">K\u1ebft lu\u1eadn<\/h2>\n<p>&#8211; Ch\u1ecdn theo \u0111\u1ed9 d\u00e0y:<br \/>\n  \u2022 \u22643 mm: Laser Fiber (N2) l\u00e0 t\u1ed1i \u01b0u; \u0111\u1ed9t d\u1eadp cho l\u1ed7\/h\u00ecnh l\u1eb7p l\u1ea1i; c\u1eaft ch\u1ea5n cho \u0111\u01b0\u1eddng th\u1eb3ng r\u1ebb.<br \/>\n  \u2022 3\u201312 mm: Laser Fiber v\u1eabn d\u1eabn \u0111\u1ea7u v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng; Plasma HD khi \u01b0u ti\u00ean chi ph\u00ed; Waterjet n\u1ebfu c\u1ea7n kh\u00f4ng HAZ.<br \/>\n  \u2022 12\u201330 mm: Plasma HD cho n\u0103ng su\u1ea5t\/chi ph\u00ed; Waterjet cho m\u00e9p cao c\u1ea5p; EDM cho chi ti\u1ebft \u0111\u1eb7c bi\u1ec7t.<br \/>\n  \u2022 >30 mm: Waterjet ho\u1eb7c EDM; c\u01b0a cho c\u1eaft th\u1eb3ng chu\u1ea9n b\u1ecb ph\u00f4i.<br \/>\n&#8211; Ch\u1ecdn theo \u0111\u1ed9 ch\u00ednh x\u00e1c\/b\u1ec1 m\u1eb7t:<br \/>\n  \u2022 R\u1ea5t cao\/kh\u00f4ng HAZ: Waterjet\/EDM.<br \/>\n  \u2022 Cao\/m\u00e9p s\u00e1ng: Laser + N2.<br \/>\n  \u2022 Trung b\u00ecnh\/ti\u1ebft ki\u1ec7m: Plasma HD.<br \/>\n  \u2022 Th\u1eb3ng\/r\u1ebb: C\u1eaft ch\u1ea5n, c\u01b0a.<br \/>\n&#8211; Lu\u00f4n c\u00e2n \u0111\u1ed1i dung sai, b\u1ec1 m\u1eb7t, s\u1ea3n l\u01b0\u1ee3ng v\u00e0 chi ph\u00ed x\u1eed l\u00fd sau c\u1eaft. N\u1ebfu s\u1ea3n ph\u1ea9m c\u1ea7n t\u00ednh ch\u1ed1ng \u0103n m\u00f2n cao ho\u1eb7c th\u1ea9m m\u1ef9, tr\u00e1nh oxy h\u00f3a m\u00e9p (\u01b0u ti\u00ean N2, Waterjet) v\u00e0 th\u1ef1c hi\u1ec7n passivation theo ti\u00eau chu\u1ea9n.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n nhanh theo b\u1ea3n v\u1ebd v\u00e0 y\u00eau c\u1ea7u c\u1ee5 th\u1ec3? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t c\u00f4ng ngh\u1ec7, t\u1ed1i \u01b0u chi ph\u00ed 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>B\u1ea3n \u0111\u1ed3 ch\u1ecdn ph\u01b0\u01a1ng ph\u00e1p c\u1eaft Inox t\u1ed1i \u01b0u theo \u0111\u1ed9 d\u00e0y, dung sai v\u00e0 b\u1ec1 m\u1eb7t y\u00eau c\u1ea7u: Laser, Waterjet, Plasma, C\u01a1 kh\u00ed, EDM. C\u00f3 v\u00ed d\u1ee5 v\u00e0 tham s\u1ed1 k\u1ef9 thu\u1eadt.<\/p>\n","protected":false},"author":7,"featured_media":1031,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-1832","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\/1832","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=1832"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/1832\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1031"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=1832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=1832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=1832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}