{"id":2281,"date":"2026-07-16T00:35:10","date_gmt":"2026-07-15T17:35:10","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/"},"modified":"2026-07-16T00:35:10","modified_gmt":"2026-07-15T17:35:10","slug":"gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/","title":{"rendered":"Gia c\u00f4ng d\u1eadp Inox: D\u1eadp ngu\u1ed9i, d\u1eadp n\u00f3ng v\u00e0 nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf khu\u00f4n t\u1ed1i \u01b0u"},"content":{"rendered":"\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-top\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;2281&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;top&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0110\u00e1nh gi\u00e1&quot;,&quot;legend&quot;:&quot;0\\\/5 - (0 b\u00ecnh ch\u1ecdn)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Gia c\u00f4ng d\u1eadp Inox: D\u1eadp ngu\u1ed9i, d\u1eadp n\u00f3ng v\u00e0 nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf khu\u00f4n t\u1ed1i \u01b0u&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            <span class=\"kksr-muted\">\u0110\u00e1nh gi\u00e1<\/span>\n    <\/div>\n    <\/div>\n<div class=\"custom-toc\">\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#Noi_dung_chinh\" >N\u1ed9i dung ch\u00ednh<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#1_Dac_tinh_bien_dang_cua_Inox_va_he_qua_voi_dap\" >1) \u0110\u1eb7c t\u00ednh bi\u1ebfn d\u1ea1ng c\u1ee7a Inox v\u00e0 h\u1ec7 qu\u1ea3 v\u1edbi d\u1eadp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#2_Dap_nguoi_Inox_quy_trinh_uunhuoc_va_thong_so_thiet_ke_chinh\" >2) D\u1eadp ngu\u1ed9i Inox: quy tr\u00ecnh, \u01b0u\/nh\u01b0\u1ee3c v\u00e0 th\u00f4ng s\u1ed1 thi\u1ebft k\u1ebf ch\u00ednh<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#21_Quy_trinh_va_ung_dung\" >2.1 Quy tr\u00ecnh v\u00e0 \u1ee9ng d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#22_Tinh_luc_catdot_va_chon_khe_ho\" >2.2 T\u00ednh l\u1ef1c c\u1eaft\/\u0111\u1ed9t v\u00e0 ch\u1ecdn khe h\u1edf<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#23_Dap_vuot_sau_deep_drawing_Inox\" >2.3 D\u1eadp vu\u1ed1t s\u00e2u (deep drawing) Inox<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#24_Chat_luong_mep_cat_va_bavia\" >2.4 Ch\u1ea5t l\u01b0\u1ee3ng m\u00e9p c\u1eaft v\u00e0 bavia<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#3_Dap_nong_Inox_khi_nao_chon_va_cach_trien_khai\" >3) D\u1eadp n\u00f3ng Inox: khi n\u00e0o ch\u1ecdn v\u00e0 c\u00e1ch tri\u1ec3n khai<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#31_Khi_nao_dung_dap_nong\" >3.1 Khi n\u00e0o d\u00f9ng d\u1eadp n\u00f3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#32_Nhiet_do_va_quy_trinh_dien_hinh\" >3.2 Nhi\u1ec7t \u0111\u1ed9 v\u00e0 quy tr\u00ecnh \u0111i\u1ec3n h\u00ecnh<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#4_Nguyen_tac_thiet_ke_khuon_dap_Inox_toi_uu\" >4) Nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf khu\u00f4n d\u1eadp Inox t\u1ed1i \u01b0u<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#41_Lua_chon_kien_truc_khuon\" >4.1 L\u1ef1a ch\u1ecdn ki\u1ebfn tr\u00fac khu\u00f4n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#42_Vat_lieu_khuon_va_xu_ly_be_mat\" >4.2 V\u1eadt li\u1ec7u khu\u00f4n v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#43_Khe_ho_goc_thoat_ban_kinh_va_chi_tiet_chuc_nang\" >4.3 Khe h\u1edf, g\u00f3c tho\u00e1t, b\u00e1n k\u00ednh v\u00e0 chi ti\u1ebft ch\u1ee9c n\u0103ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#44_Boi_tron_va_lam_sach\" >4.4 B\u00f4i tr\u01a1n v\u00e0 l\u00e0m s\u1ea1ch<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#45_Tinh_chon_may_ep_va_nang_luong\" >4.5 T\u00ednh ch\u1ecdn m\u00e1y \u00e9p v\u00e0 n\u0103ng l\u01b0\u1ee3ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#46_Kiem_soat_hoi_xuan_va_nut\" >4.6 Ki\u1ec3m so\u00e1t h\u1ed3i xu\u00e2n v\u00e0 n\u1ee9t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#47_Bao_tri_khuon\" >4.7 B\u1ea3o tr\u00ec khu\u00f4n<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#5_Toi_uu_hoa_chat_luong_va_chi_phi\" >5) T\u1ed1i \u01b0u h\u00f3a ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 chi ph\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#6_Tinh_toan_nhanh_va_vi_du_thuc_te\" >6) T\u00ednh to\u00e1n nhanh v\u00e0 v\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#61_Vi_du_dot_lo_Inox_304\" >6.1 V\u00ed d\u1ee5 \u0111\u1ed9t l\u1ed7 Inox 304<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#62_Vi_du_vuot_sau_coc_304\" >6.2 V\u00ed d\u1ee5 vu\u1ed1t s\u00e2u c\u1ed1c 304<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#7_Loi_thuong_gap_va_cach_khac_phuc\" >7) L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#8_Tieu_chuan_va_tai_lieu_tham_khao\" >8) Ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/inoxcuongthinh.com\/gia-cong-dap-inox-dap-nguoi-dap-nong-va-nguyen-tac-thiet-ke-khuon-toi-uu\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Noi_dung_chinh\"><\/span>N\u1ed9i dung ch\u00ednh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li><a href=\"#toc-0-1-dac-tinh-bien-dang-cua-inox-va-he-qua-voi-dap\">1) \u0110\u1eb7c t\u00ednh bi\u1ebfn d\u1ea1ng c\u1ee7a Inox v\u00e0 h\u1ec7 qu\u1ea3 v\u1edbi d\u1eadp<\/a><\/li>\n<li><a href=\"#toc-1-2-dap-nguoi-inox-quy-trinh-uunhuoc-va-thong-so-thi\">2) D\u1eadp ngu\u1ed9i Inox: quy tr\u00ecnh, \u01b0u\/nh\u01b0\u1ee3c v\u00e0 th\u00f4ng s\u1ed1 thi\u1ebft k\u1ebf ch\u00ednh<\/a><\/li>\n<li><a href=\"#toc-2-3-dap-nong-inox-khi-nao-chon-va-cach-trien-khai\">3) D\u1eadp n\u00f3ng Inox: khi n\u00e0o ch\u1ecdn v\u00e0 c\u00e1ch tri\u1ec3n khai<\/a><\/li>\n<li><a href=\"#toc-3-4-nguyen-tac-thiet-ke-khuon-dap-inox-toi-uu\">4) Nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf khu\u00f4n d\u1eadp Inox t\u1ed1i \u01b0u<\/a><\/li>\n<li><a href=\"#toc-4-5-toi-uu-hoa-chat-luong-va-chi-phi\">5) T\u1ed1i \u01b0u h\u00f3a ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 chi ph\u00ed<\/a><\/li>\n<li><a href=\"#toc-5-6-tinh-toan-nhanh-va-vi-du-thuc-te\">6) T\u00ednh to\u00e1n nhanh v\u00e0 v\u00ed d\u1ee5 th\u1ef1c t\u1ebf<\/a><\/li>\n<li><a href=\"#toc-6-7-loi-thuong-gap-va-cach-khac-phuc\">7) L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/a><\/li>\n<li><a href=\"#toc-7-8-tieu-chuan-va-tai-lieu-tham-khao\">8) Ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u 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 d\u1eadp Inox l\u00e0 m\u1ea3ng k\u1ef9 thu\u1eadt \u0111\u00f2i h\u1ecfi hi\u1ec3u s\u00e2u v\u1ec1 v\u1eadt li\u1ec7u, qu\u00e1 tr\u00ecnh bi\u1ebfn d\u1ea1ng v\u00e0 thi\u1ebft k\u1ebf khu\u00f4n. B\u00e0i vi\u1ebft n\u00e0y \u0111i th\u1eb3ng v\u00e0o c\u1ed1t l\u00f5i: khi n\u00e0o ch\u1ecdn d\u1eadp ngu\u1ed9i hay d\u1eadp n\u00f3ng, th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ea7n thi\u1ebft, v\u00e0 c\u00e1c nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf khu\u00f4n t\u1ed1i \u01b0u cho Inox. \u0110\u00e2y c\u0169ng l\u00e0 th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong chu\u1ed7i gia c\u00f4ng Inox t\u1ed5ng h\u1ee3p (c\u1eaft, ch\u1ea5n, d\u1eadp, l\u1ed1c), nh\u01b0ng n\u1ed9i dung d\u01b0\u1edbi \u0111\u00e2y ho\u00e0n to\u00e0n \u0111\u1ed9c l\u1eadp v\u00e0 \u0111\u1ea7y \u0111\u1ee7 cho k\u1ef9 s\u01b0, nh\u00e0 th\u1ea7u, ch\u1ee7 x\u01b0\u1edfng c\u1ea7n tri\u1ec3n khai ngay.<\/p>\n<h2 id=\"toc-0-1-dac-tinh-bien-dang-cua-inox-va-he-qua-voi-dap\"><span class=\"ez-toc-section\" id=\"1_Dac_tinh_bien_dang_cua_Inox_va_he_qua_voi_dap\"><\/span>1) \u0110\u1eb7c t\u00ednh bi\u1ebfn d\u1ea1ng c\u1ee7a Inox v\u00e0 h\u1ec7 qu\u1ea3 v\u1edbi d\u1eadp<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Nh\u00f3m m\u00e1c ph\u1ed5 bi\u1ebfn:<br \/>\n  &#8211; Austenitic (304\/304L, 316\/316L, 305): r\u1ea5t d\u1ebbo, h\u00f3a b\u1ec1n bi\u1ebfn d\u1ea1ng m\u1ea1nh, xu h\u01b0\u1edbng h\u1ed3i xu\u00e2n l\u1edbn.<br \/>\n  &#8211; Ferritic (409\/430\/439): \u0111\u1ed9 d\u1ebbo trung b\u00ecnh, \u00edt h\u00f3a b\u1ec1n h\u01a1n austenitic, \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao h\u01a1n.<br \/>\n  &#8211; Martensitic (410\/420): c\u1ee9ng, gi\u00f2n h\u01a1n, d\u1eadp s\u00e2u k\u00e9m; ph\u00f9 h\u1ee3p d\u1eadp n\u00f3ng ho\u1eb7c d\u1eadp \u0111\u01a1n gi\u1ea3n.<br \/>\n&#8211; H\u00f3a b\u1ec1n bi\u1ebfn d\u1ea1ng: Austenitic t\u0103ng nhanh \u1ee9ng su\u1ea5t ch\u1ea3y khi bi\u1ebfn d\u1ea1ng, gi\u00fap ch\u1ed1ng r\u00e1ch nh\u01b0ng l\u00e0m t\u0103ng l\u1ef1c d\u1eadp, m\u00e0i m\u00f2n khu\u00f4n v\u00e0 nguy c\u01a1 d\u00ednh b\u00e1m (galling).<br \/>\n&#8211; H\u1ed3i xu\u00e2n: Austenitic h\u1ed3i xu\u00e2n l\u1edbn h\u01a1n th\u00e9p carbon; c\u1ea7n b\u00f9 h\u00ecnh trong thi\u1ebft k\u1ebf khu\u00f4n\/chi ti\u1ebft.<br \/>\n&#8211; Ma s\u00e1t v\u00e0 d\u00ednh b\u00e1m: Inox d\u1ec5 \u201c\u0103n d\u00ednh\u201d v\u1edbi th\u00e9p khu\u00f4n; b\u00f4i tr\u01a1n EP ph\u00f9 h\u1ee3p v\u00e0 ph\u1ee7 khu\u00f4n l\u00e0 b\u1eaft bu\u1ed9c cho tu\u1ed5i b\u1ec1n.<\/p>\n<p>G\u1ee3i \u00fd ch\u1ecdn v\u1eadt li\u1ec7u theo y\u00eau c\u1ea7u:<br \/>\n&#8211; D\u1eadp vu\u1ed1t s\u00e2u: 304 DDQ\/305\/316L, 430DDQ (d\u1ea3i c\u00e1n m\u1ec1m\/\u1ee7).<br \/>\n&#8211; D\u1eadp c\u1eaft\u2013\u0111\u1ed9t l\u1ed7 t\u1ed1c \u0111\u1ed9 cao: 304\/430 c\u00e1n ngu\u1ed9i b\u1ec1 m\u1eb7t 2B\/BA, \u01b0u ti\u00ean t\u1ea5m c\u00f3 l\u1edbp film b\u1ea3o v\u1ec7.<\/p>\n<p>Ngu\u1ed3n tham kh\u1ea3o: Outokumpu Stainless Steel Handbook; ISSF \u2013 Forming of Stainless Steel; ASM Handbook Vol. 14B.<\/p>\n<h2 id=\"toc-1-2-dap-nguoi-inox-quy-trinh-uunhuoc-va-thong-so-thi\"><span class=\"ez-toc-section\" id=\"2_Dap_nguoi_Inox_quy_trinh_uunhuoc_va_thong_so_thiet_ke_chinh\"><\/span>2) D\u1eadp ngu\u1ed9i Inox: quy tr\u00ecnh, \u01b0u\/nh\u01b0\u1ee3c v\u00e0 th\u00f4ng s\u1ed1 thi\u1ebft k\u1ebf ch\u00ednh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"21_Quy_trinh_va_ung_dung\"><\/span>2.1 Quy tr\u00ecnh v\u00e0 \u1ee9ng d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; C\u00e1c c\u00f4ng \u0111o\u1ea1n: c\u1eaft\u2013x\u00e9n, \u0111\u1ed9t l\u1ed7 (piercing), c\u1eaft ph\u00f4i (blanking), d\u1eadp n\u1ed5i\/kh\u00eda (embossing), ch\u1ed3m m\u00e9p (flanging), d\u1eadp vu\u1ed1t s\u00e2u (deep drawing), d\u1eadp ch\u1ec9nh\/coining, d\u1eadp li\u00ean ho\u00e0n.<br \/>\n&#8211; \u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh: ch\u1eadu\/b\u1ed3n 304, v\u1ecf b\u1ecdc y t\u1ebf 316L, trang tr\u00ed BA\/HL, ph\u1ee5 ki\u1ec7n b\u1ebfp 430.<\/p>\n<p>\u01afu \u0111i\u1ec3m:<br \/>\n&#8211; N\u0103ng su\u1ea5t cao, \u0111\u1ed9 ch\u00ednh x\u00e1c t\u1ed1t, kh\u00f4ng c\u1ea7n gia nhi\u1ec7t.<br \/>\nNh\u01b0\u1ee3c \u0111i\u1ec3m:<br \/>\n&#8211; L\u1ef1c d\u1eadp l\u1edbn, d\u1ec5 m\u00f2n khu\u00f4n, nguy c\u01a1 galling; c\u1ea7n b\u00f4i tr\u01a1n v\u00e0 khu\u00f4n t\u1ed1i \u01b0u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"22_Tinh_luc_catdot_va_chon_khe_ho\"><\/span>2.2 T\u00ednh l\u1ef1c c\u1eaft\/\u0111\u1ed9t v\u00e0 ch\u1ecdn khe h\u1edf<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; L\u1ef1c c\u1eaft\/\u0111\u1ed9t g\u1ea7n \u0111\u00fang:<br \/>\n  F = L \u00d7 t \u00d7 \u03c4<br \/>\n  Trong \u0111\u00f3 L = chu vi \u0111\u01b0\u1eddng c\u1eaft (mm), t = chi\u1ec1u d\u00e0y (mm), \u03c4 = gi\u1edbi h\u1ea1n c\u1eaft (MPa \u2248 N\/mm\u00b2). V\u1edbi Inox austenitic \u1ee7 m\u1ec1m, \u03c4 th\u01b0\u1eddng 300\u2013450 MPa (t\u00f9y m\u00e1c\/\u0111\u1ed9 b\u1ec1n th\u1ef1c t\u1ebf).<\/p>\n<p>&#8211; Khe h\u1edf khu\u00f4n (total clearance, t\u1ed5ng hai ph\u00eda) cho Inox:<br \/>\n  &#8211; Austenitic 300\/400 series: ~16\u201324% t (\u22488\u201312% t m\u1ed7i ph\u00eda).<br \/>\n  &#8211; Ferritic 430: ~14\u201320% t (\u22487\u201310% t m\u1ed7i ph\u00eda).<br \/>\n  L\u01b0u \u00fd: Khe h\u1edf l\u1edbn gi\u00fap gi\u1ea3m bavia v\u00e0 l\u1ef1c, nh\u01b0ng qu\u00e1 l\u1edbn s\u1ebd t\u0103ng c\u00f4n l\u1ed7\/bavia. Lu\u00f4n x\u00e1c nh\u1eadn v\u1edbi nh\u00e0 cung c\u1ea5p ch\u00e0y\u2013c\u1ed1i theo c\u1ea5p b\u1ec1n v\u1eadt li\u1ec7u l\u00f4 th\u1ef1c t\u1ebf.<br \/>\n  Tham kh\u1ea3o: Mate Precision Tooling\/Wilson Tool \u2013 Punching Stainless Steel Guidelines.<\/p>\n<p>&#8211; Gi\u1ea3m \u0111\u1ec9nh t\u1ea3i: t\u1ea1o \u201cg\u00f3c c\u1eaft nghi\u00eang\u201d (shear angle) tr\u00ean ch\u00e0y\/c\u1ed1i 1\u20133 mm theo chu vi \u0111\u1ec3 h\u1ea1 \u0111\u1ec9nh l\u1ef1c v\u00e0 rung.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"23_Dap_vuot_sau_deep_drawing_Inox\"><\/span>2.3 D\u1eadp vu\u1ed1t s\u00e2u (deep drawing) Inox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; T\u1ef7 s\u1ed1 vu\u1ed1t gi\u1edbi h\u1ea1n (LDR, D0\/d):<br \/>\n  &#8211; Austenitic 304\/316L: ~2.0\u20132.2 (t\u1ed1t nh\u1ea5t v\u1edbi 305).<br \/>\n  &#8211; Ferritic 430DDQ: ~1.8\u20132.0.<br \/>\n&#8211; B\u00e1n k\u00ednh khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; B\u00e1n k\u00ednh ch\u00e0y (Rp): 4\u20138 t cho austenitic; 3\u20136 t cho ferritic.<br \/>\n  &#8211; B\u00e1n k\u00ednh c\u1ed1i (Rd): 6\u201312 t cho austenitic; 5\u201310 t cho ferritic.<br \/>\n&#8211; L\u1ef1c ch\u1eb7n ph\u00f4i (blank-holder pressure): kh\u1edfi \u0111\u1ea7u 0.8\u20131.5 MPa tr\u00ean v\u00f9ng v\u00e0nh ph\u00f4i; t\u0103ng\/gi\u1ea3m theo hi\u1ec7n t\u01b0\u1ee3ng nh\u0103n\/r\u00e1ch.<br \/>\n&#8211; Bi\u1ec7n ph\u00e1p:<br \/>\n  &#8211; D\u00f9ng h\u1ea1t ch\u1eb7n (draw beads) \u0111\u1ec3 ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y.<br \/>\n  &#8211; B\u00f4i tr\u01a1n EP g\u1ed1c d\u1ea7u t\u1ed5ng h\u1ee3p, MoS2, ho\u1eb7c phim polymer; tr\u00e1nh b\u00f4i tr\u01a1n k\u00e9m g\u00e2y galling.<br \/>\n  &#8211; V\u1edbi bi\u1ebfn d\u1ea1ng l\u1edbn, b\u1ed1 tr\u00ed nguy\u00ean c\u00f4ng vu\u1ed1t nhi\u1ec1u b\u01b0\u1edbc v\u00e0 \u1ee7 trung gian (austenitic: 1.050\u20131.100\u00b0C, l\u00e0m ngu\u1ed9i nhanh) \u0111\u1ec3 ph\u1ee5c h\u1ed3i \u0111\u1ed9 d\u1ebbo.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"24_Chat_luong_mep_cat_va_bavia\"><\/span>2.4 Ch\u1ea5t l\u01b0\u1ee3ng m\u00e9p c\u1eaft v\u00e0 bavia<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; M\u00e9p c\u1eaft \u201c\u0111\u1eb9p\u201d g\u1ed3m: v\u00f9ng l\u01b0\u1ee3n \u0111\u1ea7u (rollover) nh\u1ecf, v\u00f9ng c\u1eaft s\u00e1ng (burnish) chi\u1ebfm ~25\u201335% t, v\u00f9ng g\u00e3y x\u00e9 (fracture) g\u1ecdn, bavia th\u1ea5p.<br \/>\n&#8211; Ki\u1ec3m so\u00e1t bavia:<br \/>\n  &#8211; Duy tr\u00ec khe h\u1edf \u0111\u00fang, ch\u00e0y s\u1eafc (b\u00e1n k\u00ednh l\u01b0\u1ee1i 0.02\u20130.05 mm t\u00f9y chi\u1ec1u d\u00e0y).<br \/>\n  &#8211; Theo d\u00f5i chi\u1ec1u cao bavia cho l\u1ecbch m\u00e0i ch\u00e0y\u2013c\u1ed1i; v\u1edbi Inox, ng\u01b0\u1ee1ng th\u01b0\u1eddng \u2264 5\u201310% t (theo y\u00eau c\u1ea7u ngo\u1ea1i quan\/gh\u00e9p l\u1eafp).<\/p>\n<p>Ngu\u1ed3n: ASM Handbook Vol. 14B; h\u01b0\u1edbng d\u1eabn k\u1ef9 thu\u1eadt Outokumpu.<\/p>\n<h2 id=\"toc-2-3-dap-nong-inox-khi-nao-chon-va-cach-trien-khai\"><span class=\"ez-toc-section\" id=\"3_Dap_nong_Inox_khi_nao_chon_va_cach_trien_khai\"><\/span>3) D\u1eadp n\u00f3ng Inox: khi n\u00e0o ch\u1ecdn v\u00e0 c\u00e1ch tri\u1ec3n khai<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"31_Khi_nao_dung_dap_nong\"><\/span>3.1 Khi n\u00e0o d\u00f9ng d\u1eadp n\u00f3ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Ph\u00f4i d\u00e0y\/bi\u1ebfn d\u1ea1ng l\u1edbn m\u00e0 d\u1eadp ngu\u1ed9i g\u00e2y r\u00e1ch\/nh\u0103n nhi\u1ec1u.<br \/>\n&#8211; C\u1ea7n gi\u1ea3m l\u1ef1c d\u1eadp, gi\u1ea3m h\u1ed3i xu\u00e2n \u0111\u00e1ng k\u1ec3.<br \/>\n&#8211; Gia c\u00f4ng c\u00e1c m\u00e1c martensitic\/ferritic c\u1ee9ng ho\u1eb7c chi ti\u1ebft n\u1ed5i l\u1edbn, g\u00e2n s\u00e2u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"32_Nhiet_do_va_quy_trinh_dien_hinh\"><\/span>3.2 Nhi\u1ec7t \u0111\u1ed9 v\u00e0 quy tr\u00ecnh \u0111i\u1ec3n h\u00ecnh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Austenitic 304\/316L: t\u1ea1o h\u00ecnh n\u00f3ng ~950\u20131.100\u00b0C; l\u00e0m ngu\u1ed9i nhanh \u0111\u1ec3 tr\u00e1nh nh\u1ea1y c\u1ea3m h\u00f3a (sensitization) trong v\u00f9ng 550\u2013850\u00b0C.<br \/>\n&#8211; Ferritic 430: ~900\u20131.000\u00b0C; l\u00e0m ngu\u1ed9i kh\u00f4ng qu\u00e1 ch\u1eadm \u0111\u1ec3 h\u1ea1n ch\u1ebf h\u1ea1t th\u00f4.<br \/>\n&#8211; Martensitic 410\/420: ~950\u20131.060\u00b0C; sau t\u1ea1o h\u00ecnh c\u1ea7n t\u00f4i\u2013ram theo y\u00eau c\u1ea7u c\u01a1 t\u00ednh.<br \/>\n&#8211; Quy tr\u00ecnh: nung \u0111\u1ec1u, chuy\u1ec3n nhanh v\u00e0o khu\u00f4n (gi\u1ea3m m\u1ea5t nhi\u1ec7t), \u00e9p t\u1ea1o h\u00ecnh; d\u00f9ng khu\u00f4n th\u00e9p n\u00f3ng H13 (SKD61) c\u00f3 k\u00eanh l\u00e0m m\u00e1t c\u1ee5c b\u1ed9 n\u1ebfu c\u1ea7n \u1ed5n \u0111\u1ecbnh chu k\u1ef3.<br \/>\n&#8211; B\u00f4i tr\u01a1n ch\u1ecbu nhi\u1ec7t: graphite\/water-glass ho\u1eb7c boron nitride; x\u1eed l\u00fd t\u1ea9y c\u1ea1o x\u1ec9 (scale) sau c\u00f9ng b\u1eb1ng pickling.<\/p>\n<p>\u01afu\/nh\u01b0\u1ee3c:<br \/>\n&#8211; \u01afu: gi\u1ea3m l\u1ef1c v\u00e0 h\u1ed3i xu\u00e2n, t\u1ea1o h\u00ecnh h\u00ecnh h\u1ecdc kh\u00f3.<br \/>\n&#8211; Nh\u01b0\u1ee3c: \u0111\u1ea7u t\u01b0 khu\u00f4n n\u00f3ng cao h\u01a1n, oxy h\u00f3a b\u1ec1 m\u1eb7t, th\u00eam c\u00f4ng \u0111o\u1ea1n t\u1ea9y r\u1eeda\u2013th\u1ee5 \u0111\u1ed9ng h\u00f3a.<\/p>\n<p>Ngu\u1ed3n: Outokumpu Stainless Steel Handbook; ASM Handbook Vol. 14A\/14B.<\/p>\n<h2 id=\"toc-3-4-nguyen-tac-thiet-ke-khuon-dap-inox-toi-uu\"><span class=\"ez-toc-section\" id=\"4_Nguyen_tac_thiet_ke_khuon_dap_Inox_toi_uu\"><\/span>4) Nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf khu\u00f4n d\u1eadp Inox t\u1ed1i \u01b0u<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"41_Lua_chon_kien_truc_khuon\"><\/span>4.1 L\u1ef1a ch\u1ecdn ki\u1ebfn tr\u00fac khu\u00f4n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Khu\u00f4n \u0111\u01a1n\/compound: ph\u00f9 h\u1ee3p s\u1ea3n l\u01b0\u1ee3ng v\u1eeba, \u0111\u1ed9 linh ho\u1ea1t cao.<br \/>\n&#8211; Khu\u00f4n li\u00ean ho\u00e0n (progressive): n\u0103ng su\u1ea5t cao, ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng theo b\u01b0\u1edbc; t\u1ed1i \u01b0u layout \u0111\u1ec3 gi\u1ea3m ph\u1ebf li\u1ec7u.<br \/>\n&#8211; Khu\u00f4n chuy\u1ec3n b\u01b0\u1edbc (transfer): th\u00edch h\u1ee3p chi ti\u1ebft vu\u1ed1t s\u00e2u nhi\u1ec1u c\u00f4ng; d\u1ec5 t\u00edch h\u1ee3p \u1ee7 c\u1ee5c b\u1ed9\/\u0111\u1ecbnh h\u00ecnh l\u1ea1i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"42_Vat_lieu_khuon_va_xu_ly_be_mat\"><\/span>4.2 V\u1eadt li\u1ec7u khu\u00f4n v\u00e0 x\u1eed l\u00fd b\u1ec1 m\u1eb7t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; V\u1eadt li\u1ec7u:<br \/>\n  &#8211; D\u1eadp ngu\u1ed9i c\u1eaft\u2013\u0111\u1ed9t: D2\/SKD11, DC53, th\u00e9p b\u1ed9t PM (PM-M4) cho tu\u1ed5i b\u1ec1n cao.<br \/>\n  &#8211; Vu\u1ed1t s\u00e2u: SKD11 nhi\u1ec7t luy\u1ec7n t\u1ed1t; ch\u00e8n insert c\u1ee9ng\/\u0111\u1ed9 b\u00f3ng cao (Ra \u2264 0.2 \u00b5m).<br \/>\n  &#8211; D\u1eadp n\u00f3ng: H13\/SKD61, khu\u00f4n n\u1ec1n 42CrMo h\u1ed7 tr\u1ee3.<br \/>\n&#8211; Ph\u1ee7\/ch\u1ed1ng d\u00ednh:<br \/>\n  &#8211; Nitriding, PVD TiCN\/AlCrN, DLC cho b\u1ec1 m\u1eb7t khu\u00f4n ti\u1ebfp x\u00fac austenitic (gi\u1ea3m galling).<br \/>\n  &#8211; \u0110\u00e1nh b\u00f3ng g\u01b0\u01a1ng v\u00f9ng d\u1eabn h\u01b0\u1edbng ph\u00f4i; d\u00f9ng l\u00f3t phim PE\/PU khi c\u1ea7n b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t BA\/HL.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"43_Khe_ho_goc_thoat_ban_kinh_va_chi_tiet_chuc_nang\"><\/span>4.3 Khe h\u1edf, g\u00f3c tho\u00e1t, b\u00e1n k\u00ednh v\u00e0 chi ti\u1ebft ch\u1ee9c n\u0103ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Khe h\u1edf c\u1eaft: theo m\u1ee5c 2.2; ki\u1ec3m so\u00e1t \u0111\u1ed3ng \u0111\u1ec1u khe h\u1edf theo chu vi \u2264 \u00b10.02\u20130.03 mm cho l\u1ed7 nh\u1ecf ch\u00ednh x\u00e1c.<br \/>\n&#8211; G\u00f3c tho\u00e1t (die relief): 0.5\u20131.0\u00b0 \u0111\u1ec3 \u0111\u1ea9y ph\u1ebf\/chi ti\u1ebft, h\u1ea1n ch\u1ebf c\u1ecd x\u01b0\u1edbc Inox.<br \/>\n&#8211; B\u00e1n k\u00ednh ch\u00e0y\/c\u1ed1i: \u01b0u ti\u00ean l\u1edbn h\u01a1n th\u00e9p carbon \u0111\u1ec3 gi\u1ea3m \u1ee9ng su\u1ea5t bi\u00ean v\u00e0 v\u1ebft \u201ccam v\u1ecf cam\u201d (orange peel).<br \/>\n&#8211; T\u1ea5m ch\u1eb7n, l\u01b0\u1ee1i g\u1ea1t (stripper), d\u1eabn h\u01b0\u1edbng (guide post): \u0111\u1ed9 c\u1ee9ng v\u1eefng cao; th\u00eam t\u1ea5m backup ch\u1ed1ng bi\u1ebfn d\u1ea1ng c\u1ed1i khi d\u1eadp l\u1ef1c l\u1edbn.<br \/>\n&#8211; B\u1ed5 sung \u201c\u0111i\u1ec1n \u0111\u1ea7y\u201d (coining\/restrike) cho chi ti\u1ebft y\u00eau c\u1ea7u dung sai\/ngo\u1ea1i quan kh\u1eaft khe nh\u1eb1m tri\u1ec7t ti\u00eau h\u1ed3i xu\u00e2n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"44_Boi_tron_va_lam_sach\"><\/span>4.4 B\u00f4i tr\u01a1n v\u00e0 l\u00e0m s\u1ea1ch<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; D\u1eadp ngu\u1ed9i: d\u1ea7u EP kh\u00f4ng clo, ester t\u1ed5ng h\u1ee3p, m\u1ee1 d\u1eadp vu\u1ed1t, ho\u1eb7c m\u00e0ng polymer c\u00f3 ch\u1ea5t b\u00f4i tr\u01a1n; \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u1ea9y r\u1eeda sau d\u1eadp.<br \/>\n&#8211; V\u1ec7 sinh\u2013th\u1ee5 \u0111\u1ed9ng h\u00f3a: t\u1ea9y r\u1eeda, pickling &#038; passivation theo ASTM A380\/A967 \u0111\u1ec3 kh\u00f4i ph\u1ee5c th\u1ee5 \u0111\u1ed9ng b\u1ec1 m\u1eb7t sau gia c\u00f4ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"45_Tinh_chon_may_ep_va_nang_luong\"><\/span>4.5 T\u00ednh ch\u1ecdn m\u00e1y \u00e9p v\u00e0 n\u0103ng l\u01b0\u1ee3ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; M\u00e1y c\u01a1 kh\u00ed: ph\u00f9 h\u1ee3p c\u1eaft\u2013\u0111\u1ed9t t\u1ed1c \u0111\u1ed9 cao; ch\u00fa \u00fd \u0111\u1ec9nh l\u1ef1c g\u1ea7n \u0111i\u1ec3m ch\u1ebft d\u01b0\u1edbi. N\u00ean ch\u1ecdn m\u00e1y c\u00f3 l\u1ef1c danh \u0111\u1ecbnh \u2265 1.3\u20131.5 l\u1ea7n l\u1ef1c t\u00ednh \u0111\u1ec3 b\u00f9 ma s\u00e1t\/\u0111\u1ed9ng h\u1ecdc.<br \/>\n&#8211; M\u00e1y th\u1ee7y l\u1ef1c: ki\u1ec3m so\u00e1t l\u1ef1c\/\u0111\u1ed3 th\u1ecb h\u00e0nh tr\u00ecnh linh ho\u1ea1t; l\u00fd t\u01b0\u1edfng cho vu\u1ed1t s\u00e2u nhi\u1ec1u b\u01b0\u1edbc.<br \/>\n&#8211; Gi\u1ea3m \u0111\u1ec9nh l\u1ef1c b\u1eb1ng shear angle, chia nhi\u1ec1u nh\u00e1t (kiss cutting) ho\u1eb7c \u0111\u1ed9t theo c\u1ee5m.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"46_Kiem_soat_hoi_xuan_va_nut\"><\/span>4.6 Ki\u1ec3m so\u00e1t h\u1ed3i xu\u00e2n v\u00e0 n\u1ee9t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; B\u00f9 h\u00ecnh (overbend\/addendum), restrike, coining.<br \/>\n&#8211; T\u1ed1i \u01b0u h\u01b0\u1edbng c\u00e1n v\u00e0 b\u1ed1 tr\u00ed ph\u00f4i; d\u00f9ng m\u00f4 ph\u1ecfng t\u1ea1o h\u00ecnh (AutoForm, PAM-STAMP) v\u1edbi FLD \u0111\u1ec3 tr\u00e1nh c\u1ed5 th\u1eaft\u2013r\u00e1ch.<br \/>\n&#8211; V\u1edbi austenitic: c\u00e2n nh\u1eafc \u1ee7 trung gian khi t\u1ed5ng bi\u1ebfn d\u1ea1ng cao.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"47_Bao_tri_khuon\"><\/span>4.7 B\u1ea3o tr\u00ec khu\u00f4n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Theo d\u00f5i bavia\/\u0111\u1ed9 nh\u00e1m l\u1ed7 l\u00e0m chu\u1ea9n b\u1ea3o tr\u00ec.<br \/>\n&#8211; L\u1ecbch m\u00e0i ch\u00e0y\u2013c\u1ed1i s\u1edbm h\u01a1n khi gia c\u00f4ng austenitic d\u00e0y.<br \/>\n&#8211; Ki\u1ec3m tra n\u1ee9t m\u1ecfi c\u1ea1nh l\u01b0\u1ee1i; thay th\u1ebf insert tr\u01b0\u1edbc khi l\u00e2y lan v\u00e0o th\u00e2n khu\u00f4n.<\/p>\n<p>Ngu\u1ed3n: ASM Handbook Vol. 14B; AISI\/ISSF Fabrication Guidelines.<\/p>\n<h2 id=\"toc-4-5-toi-uu-hoa-chat-luong-va-chi-phi\"><span class=\"ez-toc-section\" id=\"5_Toi_uu_hoa_chat_luong_va_chi_phi\"><\/span>5) T\u1ed1i \u01b0u h\u00f3a ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 chi ph\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Ch\u1ecdn v\u1eadt li\u1ec7u: d\u00f9ng t\u1ea5m\/coil theo ASTM A240 ho\u1eb7c EN 10088, \u0111\u00fang tr\u1ea1ng th\u00e1i \u1ee7 (annealed) cho d\u1eadp vu\u1ed1t; 304 DDQ\/305 cho c\u1ed1c s\u00e2u; 430DDQ cho trang tr\u00ed gi\u00e1 h\u1ee3p l\u00fd.<br \/>\n&#8211; T\u1ed1i \u01b0u layout: gi\u1ea3m ph\u1ebf b\u1eb1ng xoay ph\u00f4i, d\u00f9ng common punch, t\u1eadn d\u1ee5ng d\u1ea3i bi\u00ean trong khu\u00f4n li\u00ean ho\u00e0n.<br \/>\n&#8211; B\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t: m\u00e0ng film tr\u00ean b\u1ec1 m\u1eb7t BA\/2B; d\u00f9ng t\u1ea5m ch\u00e8n polymer \u1edf v\u00f9ng t\u1ef3.<br \/>\n&#8211; Sau d\u1eadp: v\u00e1t m\u00e9p\/bavia b\u1eb1ng m\u00e0i rung, ch\u1ed5i; t\u1ea9y r\u1eeda, pickling\u2013passivation (ASTM A380\/A967) \u0111\u1ec3 tr\u1ea3 l\u1ea1i l\u1edbp th\u1ee5 \u0111\u1ed9ng.<br \/>\n&#8211; KCS: ki\u1ec3m tra bavia, n\u1ee9t vi m\u00f4 (c\u00f3 th\u1ec3 d\u00f9ng th\u1ea9m th\u1ea5u hu\u1ef3nh quang theo ASTM E1417 khi y\u00eau c\u1ea7u an to\u00e0n cao), k\u00edch th\u01b0\u1edbc v\u00e0 \u0111\u1ed9 cong do h\u1ed3i xu\u00e2n.<\/p>\n<h2 id=\"toc-5-6-tinh-toan-nhanh-va-vi-du-thuc-te\"><span class=\"ez-toc-section\" id=\"6_Tinh_toan_nhanh_va_vi_du_thuc_te\"><\/span>6) T\u00ednh to\u00e1n nhanh v\u00e0 v\u00ed d\u1ee5 th\u1ef1c t\u1ebf<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"61_Vi_du_dot_lo_Inox_304\"><\/span>6.1 V\u00ed d\u1ee5 \u0111\u1ed9t l\u1ed7 Inox 304<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Y\u00eau c\u1ea7u: \u0111\u1ed9t l\u1ed7 \u00d810 mm tr\u00ean t\u1ea5m 304 d\u00e0y t = 2.0 mm (tr\u1ea1ng th\u00e1i \u1ee7).<br \/>\n&#8211; Th\u00f4ng s\u1ed1:<br \/>\n  &#8211; L = \u03c0d = 31.416 mm<br \/>\n  &#8211; \u03c4 (\u01b0\u1edbc t\u00ednh) = 350 MPa = 350 N\/mm\u00b2<br \/>\n&#8211; L\u1ef1c \u0111\u1ed9t: F = L \u00d7 t \u00d7 \u03c4 = 31.416 \u00d7 2.0 \u00d7 350 \u2248 21,990 N \u2248 22 kN (\u2248 2.2 t\u1ea5n).<br \/>\n&#8211; Ch\u1ecdn m\u00e1y: m\u00e1y 6\u201310 t\u1ea5n an to\u00e0n (d\u01b0 l\u1ef1c cho ma s\u00e1t\/dao \u0111\u1ed9ng).<br \/>\n&#8211; Khe h\u1edf t\u1ed5ng: 18\u201322% t \u2192 0.36\u20130.44 mm (m\u1ed7i ph\u00eda 0.18\u20130.22 mm).<br \/>\n&#8211; G\u1ee3i \u00fd: t\u1ea1o shear angle ~1\u20132 mm \u0111\u1ec3 gi\u1ea3m \u0111\u1ec9nh l\u1ef1c v\u00e0 rung; b\u00f4i tr\u01a1n EP nh\u1eb9 \u0111\u1ec3 h\u1ea1n ch\u1ebf galling.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"62_Vi_du_vuot_sau_coc_304\"><\/span>6.2 V\u00ed d\u1ee5 vu\u1ed1t s\u00e2u c\u1ed1c 304<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ee5c ti\u00eau: c\u1ed1c d = 60 mm, h = 40 mm, t = 1.0 mm.<br \/>\n&#8211; T\u00ednh ph\u00f4i ph\u1eb3ng x\u1ea5p x\u1ec9 (b\u1ea3o to\u00e0n di\u1ec7n t\u00edch, b\u1ecf qua m\u1ecfng th\u00e0nh):<br \/>\n  D0\u00b2 \u2248 d\u00b2 + 4dh = 60\u00b2 + 4\u00d760\u00d740 = 3,600 + 9,600 = 13,200 \u2192 D0 \u2248 114.9 mm.<br \/>\n&#8211; LDR = D0\/d \u2248 114.9\/60 \u2248 1.92 < 2.0 \u2192 kh\u1ea3 thi v\u1edbi 304.  \n- B\u00e1n k\u00ednh: Rp = 4\u20136 mm; Rd = 6\u201310 mm.  \n- B\u00f4i tr\u01a1n: d\u1ea7u vu\u1ed1t EP + b\u1ed5 sung draw bead ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y; kh\u1edfi \u0111\u1ed9ng BHP \u2248 1.0 MPa v\u00e0 \u0111i\u1ec1u ch\u1ec9nh theo nh\u0103n\/r\u00e1ch quan s\u00e1t.  \n- N\u1ebfu r\u1ea1n \u1edf vai: t\u0103ng b\u00e1n k\u00ednh Rd\/Rp v\u00e0\/ho\u1eb7c \u1ee7 trung gian.\n\n\n\n<h2 id=\"toc-6-7-loi-thuong-gap-va-cach-khac-phuc\"><span class=\"ez-toc-section\" id=\"7_Loi_thuong_gap_va_cach_khac_phuc\"><\/span>7) L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Bavia cao, m\u00e9p x\u1ea5u: khe h\u1edf sai, ch\u00e0y c\u00f9n \u2192 \u0111i\u1ec1u ch\u1ec9nh khe h\u1edf, m\u00e0i ch\u00e0y\u2013c\u1ed1i, th\u00eam shear angle.<br \/>\n&#8211; Galling\/d\u00ednh b\u1ec1 m\u1eb7t: b\u00f4i tr\u01a1n k\u00e9m, b\u1ec1 m\u1eb7t khu\u00f4n th\u00f4 \u2192 d\u00f9ng d\u1ea7u EP, ph\u1ee7 PVD\/nitriding, \u0111\u00e1nh b\u00f3ng v\u00f9ng ma s\u00e1t.<br \/>\n&#8211; N\u1ee9t vai khi vu\u1ed1t: b\u00e1n k\u00ednh nh\u1ecf, BHP th\u1ea5p ho\u1eb7c h\u01b0\u1edbng d\u00f2ng ch\u1ea3y k\u00e9m \u2192 t\u0103ng Rd\/Rp, th\u00eam\/t\u1ed1i \u01b0u draw bead, \u1ee7 trung gian.<br \/>\n&#8211; Nh\u0103n v\u00e0nh: BHP thi\u1ebfu \u2192 t\u0103ng l\u1ef1c ch\u1eb7n ph\u00f4i, t\u0103ng ma s\u00e1t v\u00f9ng bead.<br \/>\n&#8211; H\u1ed3i xu\u00e2n l\u1edbn: thi\u1ebfu restrike\/coining \u2192 b\u00f9 h\u00ecnh, b\u1ed5 sung nguy\u00ean c\u00f4ng ch\u1ec9nh, t\u0103ng l\u1ef1c ch\u1eb7n\/\u00e9p ch\u1eb7t cu\u1ed1i h\u00e0nh tr\u00ecnh.<br \/>\n&#8211; Cam v\u1ecf cam (orange peel): h\u1ea1t v\u1eadt li\u1ec7u th\u00f4 ho\u1eb7c bi\u1ebfn d\u1ea1ng c\u1ee5c b\u1ed9 cao \u2192 ch\u1ecdn v\u1eadt li\u1ec7u \u1ee7 chu\u1ea9n, gi\u1ea3m \u0111\u1ed9 bi\u1ebfn d\u1ea1ng m\u1ed7i b\u01b0\u1edbc, \u0111\u00e1nh b\u00f3ng khu\u00f4n.<\/p>\n<h2 id=\"toc-7-8-tieu-chuan-va-tai-lieu-tham-khao\"><span class=\"ez-toc-section\" id=\"8_Tieu_chuan_va_tai_lieu_tham_khao\"><\/span>8) Ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; V\u1eadt li\u1ec7u Inox t\u1ea5m: ASTM A240; EN 10088; JIS G4305.<br \/>\n&#8211; L\u00e0m s\u1ea1ch\u2013th\u1ee5 \u0111\u1ed9ng h\u00f3a: ASTM A380, ASTM A967.<br \/>\n&#8211; K\u1ef9 thu\u1eadt t\u1ea1o h\u00ecnh: ASM Handbook, Vol. 14A\/14B \u2013 Metalworking\/Sheet Forming.<br \/>\n&#8211; H\u01b0\u1edbng d\u1eabn gia c\u00f4ng Inox: Outokumpu Stainless Steel Handbook; International Stainless Steel Forum (ISSF) \u2013 Forming of Stainless Steel.<br \/>\n&#8211; \u0110\u1ed9t d\u1eadp Inox: Mate Precision Tooling, Wilson Tool \u2013 Stainless Punching Guidelines.<\/p>\n<h2 id=\"toc-8-ket-luan\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 d\u1eadp Inox hi\u1ec7u qu\u1ea3, h\u00e3y:<br \/>\n&#8211; \u01afu ti\u00ean d\u1eadp ngu\u1ed9i cho n\u0103ng su\u1ea5t\/\u0111\u1ed9 ch\u00ednh x\u00e1c, d\u00f9ng d\u1eadp n\u00f3ng khi chi ti\u1ebft d\u00e0y, bi\u1ebfn d\u1ea1ng l\u1edbn ho\u1eb7c v\u1eadt li\u1ec7u c\u1ee9ng.<br \/>\n&#8211; Thi\u1ebft k\u1ebf khu\u00f4n theo \u201cchu\u1ea9n Inox\u201d: khe h\u1edf l\u1edbn h\u01a1n th\u00e9p carbon, b\u00e1n k\u00ednh r\u1ed9ng, b\u1ec1 m\u1eb7t\u2013ph\u1ee7 ch\u1ed1ng d\u00ednh, b\u00f4i tr\u01a1n EP ph\u00f9 h\u1ee3p.<br \/>\n&#8211; T\u00ednh l\u1ef1c \u0111\u00fang, ch\u1ecdn m\u00e1y d\u01b0 t\u1ea3i, ki\u1ec3m so\u00e1t h\u1ed3i xu\u00e2n b\u1eb1ng b\u00f9 h\u00ecnh\/restrike v\u00e0 \u1ee7 trung gian khi c\u1ea7n.<br \/>\n&#8211; Duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng b\u1eb1ng b\u1ea3o tr\u00ec khu\u00f4n, t\u1ea9y r\u1eeda\u2013th\u1ee5 \u0111\u1ed9ng h\u00f3a theo chu\u1ea9n.<\/p>\n<p>C\u1ea7n b\u1ea3ng k\u00ea v\u1eadt li\u1ec7u, t\u01b0 v\u1ea5n th\u00f4ng s\u1ed1 khu\u00f4n theo m\u00e1c\/thickness th\u1ef1c t\u1ebf ho\u1eb7c b\u00e1o gi\u00e1 Inox 304\/316\/430 chu\u1ea9n ASTM A240? Li\u00ean h\u1ec7 Inox Cuong Thinh \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n 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 \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 d\u1eadp Inox: so s\u00e1nh d\u1eadp ngu\u1ed9i\/d\u1eadp n\u00f3ng, c\u00f4ng th\u1ee9c t\u00ednh l\u1ef1c, ch\u1ecdn khe h\u1edf v\u00e0 b\u00e1n k\u00ednh, v\u1eadt li\u1ec7u\u2013ph\u1ee7 khu\u00f4n, b\u00f4i tr\u01a1n v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng.<\/p>\n","protected":false},"author":7,"featured_media":1049,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2281","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\/2281","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=2281"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2281\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1049"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2281"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2281"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2281"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}