{"id":2279,"date":"2026-07-15T12:33:55","date_gmt":"2026-07-15T05:33:55","guid":{"rendered":"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/"},"modified":"2026-07-15T12:33:55","modified_gmt":"2026-07-15T05:33:55","slug":"chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac","status":"publish","type":"post","link":"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/","title":{"rendered":"Ch\u1ea5n g\u1ea5p inox t\u1ea5m: ch\u1ecdn dao\u2013c\u1ed1i, t\u00ednh l\u1ef1c v\u00e0 g\u00f3c ch\u00ednh x\u00e1c"},"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;2279&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;Ch\u1ea5n g\u1ea5p inox t\u1ea5m: ch\u1ecdn dao\u2013c\u1ed1i, t\u00ednh l\u1ef1c v\u00e0 g\u00f3c ch\u00ednh x\u00e1c&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 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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\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#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\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Tong_quan_nhanh_ve_cac_phuong_phap_chan_inox\" >T\u1ed5ng quan nhanh v\u1ec1 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ea5n inox<\/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\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Lua_chon_dao_punch_va_coi_die_cho_inox\" >L\u1ef1a ch\u1ecdn dao (punch) v\u00e0 c\u1ed1i (die) cho inox<\/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\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Quy_tac_chon_V-opening_coi_6%E2%80%938%E2%80%9310_%C3%97_chieu_day\" >Quy t\u1eafc ch\u1ecdn V-opening c\u1ed1i: 6\u20138\u201310 \u00d7 chi\u1ec1u d\u00e0y<\/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\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Goc_dao%E2%80%93coi_va_ban_kinh_mui_dao\" >G\u00f3c dao\u2013c\u1ed1i v\u00e0 b\u00e1n k\u00ednh m\u0169i dao<\/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\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Chieu_cao_coi_khoang_ho_va_chieu_cao_canh_toi_thieu\" >Chi\u1ec1u cao c\u1ed1i, kho\u1ea3ng h\u1edf v\u00e0 chi\u1ec1u cao c\u00e1nh t\u1ed1i thi\u1ec3u<\/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\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Anh_huong_cua_mac_inox\" >\u1ea2nh h\u01b0\u1edfng c\u1ee7a m\u00e1c inox<\/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\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Tinh_luc_chan_tonnage_theo_mac_inox_va_V-opening\" >T\u00ednh l\u1ef1c ch\u1ea5n (tonnage) theo m\u00e1c inox v\u00e0 V-opening<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Tinh_goc_chan_hoi_dan_hoi_va_bu_chieu_dai_phat_trien\" >T\u00ednh g\u00f3c ch\u1ea5n, h\u1ed3i \u0111\u00e0n h\u1ed3i v\u00e0 b\u00f9 chi\u1ec1u d\u00e0i ph\u00e1t tri\u1ec3n<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Hoi_dan_hoi_springback_cua_inox\" >H\u1ed3i \u0111\u00e0n h\u1ed3i (springback) c\u1ee7a inox<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Ban_kinh_trong_K-factor_Bend_Allowance_va_Bend_Deduction\" >B\u00e1n k\u00ednh trong, K-factor, Bend Allowance v\u00e0 Bend Deduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Do_sau_chan_va_kiem_soat_goc\" >\u0110\u1ed9 s\u00e2u ch\u1ea5n v\u00e0 ki\u1ec3m so\u00e1t g\u00f3c<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Ban_kinh_toi_thieu_va_huong_can\" >B\u00e1n k\u00ednh t\u1ed1i thi\u1ec3u v\u00e0 h\u01b0\u1edbng c\u00e1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Quy_trinh_thiet_lap_chan_chinh_xac_tai_xuong\" >Quy tr\u00ecnh thi\u1ebft l\u1eadp ch\u1ea5n ch\u00ednh x\u00e1c t\u1ea1i x\u01b0\u1edfng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Loi_thuong_gap_va_cach_khac_phuc\" >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-16\" href=\"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Quy_tac_nhanh_khi_chan_inox\" >Quy t\u1eafc nhanh khi ch\u1ea5n inox<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Vi_du_tong_hop_nhanh\" >V\u00ed d\u1ee5 t\u1ed5ng h\u1ee3p nhanh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/inoxcuongthinh.com\/chan-gap-inox-tam-chon-dao-coi-tinh-luc-va-goc-chinh-xac\/#Tai_lieu_tham_khao\" >T\u00e0i li\u1ec7u tham kh\u1ea3o<\/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-tong-quan-nhanh-ve-cac-phuong-phap-chan-inox\">T\u1ed5ng quan nhanh v\u1ec1 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ea5n inox<\/a><\/li>\n<li><a href=\"#toc-1-lua-chon-dao-punch-va-coi-die-cho-inox\">L\u1ef1a ch\u1ecdn dao (punch) v\u00e0 c\u1ed1i (die) cho inox<\/a><\/li>\n<li><a href=\"#toc-2-tinh-luc-chan-tonnage-theo-mac-inox-va-v-opening\">T\u00ednh l\u1ef1c ch\u1ea5n (tonnage) theo m\u00e1c inox v\u00e0 V-opening<\/a><\/li>\n<li><a href=\"#toc-3-tinh-goc-chan-hoi-dan-hoi-va-bu-chieu-dai-phat-tri\">T\u00ednh g\u00f3c ch\u1ea5n, h\u1ed3i \u0111\u00e0n h\u1ed3i v\u00e0 b\u00f9 chi\u1ec1u d\u00e0i ph\u00e1t tri\u1ec3n<\/a><\/li>\n<li><a href=\"#toc-4-ban-kinh-toi-thieu-va-huong-can\">B\u00e1n k\u00ednh t\u1ed1i thi\u1ec3u v\u00e0 h\u01b0\u1edbng c\u00e1n<\/a><\/li>\n<li><a href=\"#toc-5-quy-trinh-thiet-lap-chan-chinh-xac-tai-xuong\">Quy tr\u00ecnh thi\u1ebft l\u1eadp ch\u1ea5n ch\u00ednh x\u00e1c t\u1ea1i x\u01b0\u1edfng<\/a><\/li>\n<li><a href=\"#toc-6-loi-thuong-gap-va-cach-khac-phuc\">L\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/a><\/li>\n<li><a href=\"#toc-7-quy-tac-nhanh-khi-chan-inox\">Quy t\u1eafc nhanh khi ch\u1ea5n inox<\/a><\/li>\n<li><a href=\"#toc-8-vi-du-tong-hop-nhanh\">V\u00ed d\u1ee5 t\u1ed5ng h\u1ee3p nhanh<\/a><\/li>\n<li><a href=\"#toc-9-tai-lieu-tham-khao\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/a><\/li>\n<\/ul>\n<\/div>\n<p>Ch\u1ea5n g\u1ea5p inox t\u1ea5m l\u00e0 c\u00f4ng \u0111o\u1ea1n quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 ch\u00ednh x\u00e1c h\u00ecnh h\u1ecdc, \u0111\u1ed9 b\u1ec1n v\u00e0 th\u1ea9m m\u1ef9 chi ti\u1ebft trong gia c\u00f4ng Inox. B\u00e0i vi\u1ebft n\u00e0y \u0111i th\u1eb3ng v\u00e0o ba m\u1ea5u ch\u1ed1t: ch\u1ecdn dao\u2013c\u1ed1i \u0111\u00fang, t\u00ednh l\u1ef1c ch\u1ea5n \u0111\u1ee7, v\u00e0 ki\u1ec3m so\u00e1t g\u00f3c ch\u1ea5n (k\u1ec3 c\u1ea3 h\u1ed3i \u0111\u00e0n h\u1ed3i) \u0111\u1ec3 \u0111\u1ea1t sai s\u1ed1 nh\u1ecf, \u00edt v\u1ebft h\u1eb1n, kh\u00f4ng n\u1ee9t m\u00e9p \u2014 \u00e1p d\u1ee5ng th\u1ef1c t\u1ebf cho c\u00e1c m\u00e1c inox ph\u1ed5 bi\u1ebfn t\u1ea1i Vi\u1ec7t Nam nh\u01b0 201, 304, 316, 430.<\/p>\n<h2 id=\"toc-0-tong-quan-nhanh-ve-cac-phuong-phap-chan-inox\"><span class=\"ez-toc-section\" id=\"Tong_quan_nhanh_ve_cac_phuong_phap_chan_inox\"><\/span>T\u1ed5ng quan nhanh v\u1ec1 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ea5n inox<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Air bending (ch\u1ea5n kh\u00f4ng t\u1ef3): Ph\u1ed5 bi\u1ebfn nh\u1ea5t. B\u00e1n k\u00ednh trong sinh ra ch\u1ee7 y\u1ebfu b\u1edfi c\u1ed1i (V-opening). Linh ho\u1ea1t, l\u1ef1c ch\u1ea5n th\u1ea5p, d\u1ec5 b\u00f9 g\u00f3c. Ph\u00f9 h\u1ee3p h\u1ea7u h\u1ebft 201\/304\/316\/430.<br \/>\n&#8211; Bottoming (ch\u1ea5n \u00e1p c\u1ed1i): Ph\u00f4i \u00e9p t\u1ef3 vai c\u1ed1i. G\u00f3c \u1ed5n \u0111\u1ecbnh h\u01a1n, b\u00e1n k\u00ednh nh\u1ecf h\u01a1n, l\u1ef1c cao h\u01a1n. D\u00f9ng khi c\u1ea7n \u0111\u1ed9 l\u1eb7p l\u1ea1i cao ho\u1eb7c b\u00e1n k\u00ednh nh\u1ecf c\u00f3 ki\u1ec3m so\u00e1t.<br \/>\n&#8211; Coining (d\u1eadp \u00e9p s\u00e2u): \u1ea4n l\u00f5m s\u1ee3i kim lo\u1ea1i, g\u1ea7n nh\u01b0 kh\u00f4ng h\u1ed3i \u0111\u00e0n h\u1ed3i, nh\u01b0ng l\u1ef1c r\u1ea5t l\u1edbn, m\u00f2n d\u1ee5ng c\u1ee5 nhanh. \u00cdt d\u00f9ng cho inox t\u1ea5m m\u1ecfng ph\u1ed5 th\u00f4ng v\u00ec t\u1ed1n l\u1ef1c v\u00e0 r\u1ee7i ro n\u1ee9t.<\/p>\n<p>L\u1eddi khuy\u00ean th\u1ef1c t\u1ebf: 90% tr\u01b0\u1eddng h\u1ee3p v\u1edbi inox t\u1ea5m m\u1ecfng\u2013trung b\u00ecnh (0.6\u20134 mm) n\u00ean ch\u1ecdn air bending; ch\u1ec9 chuy\u1ec3n sang bottoming khi y\u00eau c\u1ea7u b\u00e1n k\u00ednh nh\u1ecf v\u00e0 g\u00f3c si\u00eau \u1ed5n \u0111\u1ecbnh.<\/p>\n<h2 id=\"toc-1-lua-chon-dao-punch-va-coi-die-cho-inox\"><span class=\"ez-toc-section\" id=\"Lua_chon_dao_punch_va_coi_die_cho_inox\"><\/span>L\u1ef1a ch\u1ecdn dao (punch) v\u00e0 c\u1ed1i (die) cho inox<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Quy_tac_chon_V-opening_coi_6%E2%80%938%E2%80%9310_%C3%97_chieu_day\"><\/span>Quy t\u1eafc ch\u1ecdn V-opening c\u1ed1i: 6\u20138\u201310 \u00d7 chi\u1ec1u d\u00e0y<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Inox d\u1ec5 c\u1ee9ng ngu\u1ed9i v\u00e0 h\u1ed3i \u0111\u00e0n h\u1ed3i cao h\u01a1n th\u00e9p th\u01b0\u1eddng. Quy t\u1eafc an to\u00e0n:<br \/>\n  &#8211; T\u1ea5m 0.6\u20131.5 mm: V \u2248 6\u20138 \u00d7 t<br \/>\n  &#8211; T\u1ea5m 2\u20134 mm: V \u2248 8 \u00d7 t (\u01b0u ti\u00ean cho 304\/316)<br \/>\n  &#8211; T\u1ea5m >4 mm: V \u2248 10 \u00d7 t \u0111\u1ec3 gi\u1ea3m l\u1ef1c v\u00e0 h\u1ea1n ch\u1ebf v\u1ebft h\u1eb1n<br \/>\n&#8211; B\u00e1n k\u00ednh trong \u01b0\u1edbc t\u00ednh v\u1edbi air bending: Ri \u2248 0.16\u20130.20 \u00d7 V (inox c\u00f3 xu h\u01b0\u1edbng g\u1ea7n 0.18\u20130.20 \u00d7 V). Th\u1ef1c t\u1ebf 304 th\u01b0\u1eddng l\u1ea5y Ri \u2248 V\/6 l\u00e0 \u0111\u1ee7 g\u1ea7n.<\/p>\n<p>V\u00ed d\u1ee5: t = 2 mm, ch\u1ecdn V = 16 mm (8t) \u2192 Ri \u2248 2.6\u20133.2 mm.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Goc_dao%E2%80%93coi_va_ban_kinh_mui_dao\"><\/span>G\u00f3c dao\u2013c\u1ed1i v\u00e0 b\u00e1n k\u00ednh m\u0169i dao<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; G\u00f3c c\u1ed1i 85\u201388\u201390 \u0111\u1ed9: 88\u00b0 l\u00e0 \u201c\u0111a d\u1ee5ng\u201d cho 90\u00b0 air bending (d\u1ec5 b\u00f9 g\u00f3c).<br \/>\n&#8211; B\u00e1n k\u00ednh m\u0169i dao (Rp):<br \/>\n  &#8211; Air bending: Rp n\u00ean nh\u1ecf h\u01a1n Ri m\u1ee5c ti\u00eau (kho\u1ea3ng 0.6\u20130.8 \u00d7 Ri) \u0111\u1ec3 tr\u00e1nh in v\u1ebft, v\u1eabn d\u1eabn h\u01b0\u1edbng t\u1ed1t.<br \/>\n  &#8211; Bottoming: Rp g\u1ea7n b\u1eb1ng Ri mong mu\u1ed1n.<br \/>\n&#8211; B\u1ec1 m\u1eb7t d\u1ee5ng c\u1ee5: N\u00ean ch\u1ecdn dao\u2013c\u1ed1i t\u00f4i c\u1ee9ng, \u0111\u00e1nh b\u00f3ng vai c\u1ed1i; d\u00f9ng b\u0103ng PET\/PVC ho\u1eb7c gi\u1ea5y kraft \u0111\u1ec3 b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t HL\/No.4\/BA.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Chieu_cao_coi_khoang_ho_va_chieu_cao_canh_toi_thieu\"><\/span>Chi\u1ec1u cao c\u1ed1i, kho\u1ea3ng h\u1edf v\u00e0 chi\u1ec1u cao c\u00e1nh t\u1ed1i thi\u1ec3u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Chi\u1ec1u cao c\u00e1nh t\u1ed1i thi\u1ec3u khi air bending: \u2265 V\/2 \u0111\u1ec3 tr\u00e1nh r\u01a1i v\u00e0o l\u00f2ng V.<br \/>\n&#8211; Tr\u00e1nh k\u1eb9t ph\u00f4i: ki\u1ec3m tra qu\u1ef9 \u0111\u1ea1o dao v\u1edbi chi ti\u1ebft (\u0111\u1eb7c bi\u1ec7t U, Z nhi\u1ec1u b\u1eadc); d\u00f9ng c\u1ed1i h\u1edf r\u1ed9ng ho\u1eb7c dao c\u1ed5 thi\u00ean nga khi c\u1ea7n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Anh_huong_cua_mac_inox\"><\/span>\u1ea2nh h\u01b0\u1edfng c\u1ee7a m\u00e1c inox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; 201: \u0110\u1ed9 b\u1ec1n k\u00e9o cao, \u0111\u1ed9 d\u1ebbo k\u00e9m h\u01a1n 304 \u2192 \u01b0u ti\u00ean V l\u1edbn h\u01a1n (8\u201310t), d\u1ec5 h\u1ed3i \u0111\u00e0n h\u1ed3i h\u01a1n.<br \/>\n&#8211; 304: C\u00e2n b\u1eb1ng, d\u1ec5 ch\u1ea5n nh\u1ea5t trong nh\u00f3m austenitic \u2192 V = 8t l\u00e0 \u201cchu\u1ea9n nh\u00e0 m\u00e1y\u201d.<br \/>\n&#8211; 316: T\u01b0\u01a1ng t\u1ef1 304 nh\u01b0ng b\u1ec1n h\u01a1n \u0111\u00f4i ch\u00fat \u2192 l\u1ef1c l\u1edbn h\u01a1n ~5\u201310%.<br \/>\n&#8211; 430 (ferritic): D\u1ec5 n\u1ee9t theo h\u01b0\u1edbng c\u00e1n \u2192 t\u0103ng b\u00e1n k\u00ednh, u\u1ed1n vu\u00f4ng g\u00f3c v\u1edbi v\u00e2n c\u00e1n, h\u1ea1n ch\u1ebf bottoming b\u00e1n k\u00ednh nh\u1ecf.<\/p>\n<h2 id=\"toc-2-tinh-luc-chan-tonnage-theo-mac-inox-va-v-opening\"><span class=\"ez-toc-section\" id=\"Tinh_luc_chan_tonnage_theo_mac_inox_va_V-opening\"><\/span>T\u00ednh l\u1ef1c ch\u1ea5n (tonnage) theo m\u00e1c inox v\u00e0 V-opening<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00f4ng th\u1ee9c th\u1ef1c t\u1ebf cho air bending:<br \/>\n&#8211; P (kN\/m) \u2248 1.33 \u00d7 TS (MPa) \u00d7 t^2 (mm) \/ V (mm)<br \/>\n&#8211; T\u01b0\u01a1ng \u0111\u01b0\u01a1ng P (t\u1ea5n\/m) \u2248 0.136 \u00d7 TS \u00d7 t^2 \/ V<\/p>\n<p>TS l\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o v\u1eadt li\u1ec7u. Tham kh\u1ea3o gi\u00e1 tr\u1ecb \u0111i\u1ec3n h\u00ecnh:<br \/>\n&#8211; SUS201: 650\u2013800 MPa<br \/>\n&#8211; SUS304: 520\u2013750 MPa (th\u01b0\u1eddng l\u1ea5y 600 MPa \u0111\u1ec3 t\u00ednh s\u01a1 b\u1ed9)<br \/>\n&#8211; SUS316: 550\u2013760 MPa<br \/>\n&#8211; SUS430: 450\u2013600 MPa<\/p>\n<p>V\u00ed d\u1ee5 t\u00ednh nhanh:<br \/>\n&#8211; Inox 304, t = 2 mm, V = 16 mm, L = 1 m, TS \u2248 600 MPa<br \/>\n  &#8211; P \u2248 0.136 \u00d7 600 \u00d7 4 \/ 16 = 0.136 \u00d7 150 = 20.4 t\u1ea5n\/m<br \/>\n  &#8211; M\u00e1y 80 t\u1ea5n ch\u1ea5n \u0111\u01b0\u1ee3c ~4 m v\u1edbi thi\u1ebft l\u1eadp n\u00e0y (n\u00ean ch\u1eeba 20% d\u1ef1 ph\u00f2ng).<\/p>\n<p>Ghi ch\u00fa:<br \/>\n&#8211; Bottoming c\u1ea7n l\u1ef1c cao h\u01a1n 1.5\u20132.5 l\u1ea7n air bending (t\u00f9y b\u00e1n k\u00ednh).<br \/>\n&#8211; Lu\u00f4n c\u1ed9ng th\u00eam 10\u201320% d\u1ef1 ph\u00f2ng cho v\u1eadt li\u1ec7u c\u00e1n c\u1ee9ng, b\u1ec1 m\u1eb7t c\u00f3 phim, ho\u1eb7c sai l\u1ec7ch chi\u1ec1u d\u00e0y.<\/p>\n<h2 id=\"toc-3-tinh-goc-chan-hoi-dan-hoi-va-bu-chieu-dai-phat-tri\"><span class=\"ez-toc-section\" id=\"Tinh_goc_chan_hoi_dan_hoi_va_bu_chieu_dai_phat_trien\"><\/span>T\u00ednh g\u00f3c ch\u1ea5n, h\u1ed3i \u0111\u00e0n h\u1ed3i v\u00e0 b\u00f9 chi\u1ec1u d\u00e0i ph\u00e1t tri\u1ec3n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Hoi_dan_hoi_springback_cua_inox\"><\/span>H\u1ed3i \u0111\u00e0n h\u1ed3i (springback) c\u1ee7a inox<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; V\u1edbi air bending 90\u00b0 v\u00e0 V \u2248 8t:<br \/>\n  &#8211; 304\/316: th\u01b0\u1eddng 2\u20134\u00b0 (c\u00f3 th\u1ec3 t\u1edbi 5\u20136\u00b0 v\u1edbi t m\u1ecfng v\u00e0 V l\u1edbn)<br \/>\n  &#8211; 201: 3\u20136\u00b0<br \/>\n  &#8211; 430: 1\u20133\u00b0 nh\u01b0ng d\u1ec5 n\u1ee9t h\u01a1n khi \u00e9p b\u00e1n k\u00ednh nh\u1ecf<br \/>\n&#8211; C\u00e1ch b\u00f9 nhanh:<br \/>\n  &#8211; \u0110\u1eb7t g\u00f3c ch\u1ea5n m\u1ee5c ti\u00eau nh\u1ecf h\u01a1n g\u00f3c th\u00e0nh ph\u1ea9m m\u1ed9t l\u01b0\u1ee3ng b\u1eb1ng h\u1ed3i \u0111\u00e0n h\u1ed3i d\u1ef1 ki\u1ebfn (over-bend).<br \/>\n  &#8211; Lu\u00f4n ch\u1ea1y th\u1eed 1\u20133 ph\u00f4i \u0111\u1ec3 \u0111o h\u1ed3i \u0111\u00e0n h\u1ed3i th\u1ef1c t\u1ebf r\u1ed3i c\u1ed1 \u0111\u1ecbnh th\u00f4ng s\u1ed1.<\/p>\n<p>M\u1eb9o gi\u1ea3m h\u1ed3i \u0111\u00e0n h\u1ed3i:<br \/>\n&#8211; D\u00f9ng V nh\u1ecf h\u01a1n (nh\u01b0ng kh\u00f4ng v\u01b0\u1ee3t gi\u1edbi h\u1ea1n V \u2265 6t) ho\u1eb7c chuy\u1ec3n sang bottoming nh\u1eb9.<br \/>\n&#8211; T\u0103ng b\u00e1n k\u00ednh m\u0169i dao v\u1eeba \u0111\u1ee7, d\u00f9ng v\u1eadt li\u1ec7u c\u00f9ng l\u00f4 s\u1ea3n xu\u1ea5t \u0111\u1ec3 \u1ed5n \u0111\u1ecbnh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ban_kinh_trong_K-factor_Bend_Allowance_va_Bend_Deduction\"><\/span>B\u00e1n k\u00ednh trong, K-factor, Bend Allowance v\u00e0 Bend Deduction<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; V\u1edbi air bending, Ri ph\u1ee5 thu\u1ed9c V v\u00e0 t\u00ednh ch\u1ea5t v\u1eadt li\u1ec7u (\u01b0\u1edbc t\u00ednh Ri \u2248 0.16\u20130.20 \u00d7 V nh\u01b0 tr\u00ean).<br \/>\n&#8211; K-factor khuy\u1ebfn ngh\u1ecb:<br \/>\n  &#8211; Air bending inox: K \u2248 0.42\u20130.50 (th\u00f4ng d\u1ee5ng 0.45 v\u1edbi 304)<br \/>\n  &#8211; Bottoming inox: K \u2248 0.30\u20130.38<br \/>\n&#8211; Bend Allowance (BA):<br \/>\n  &#8211; BA = (\u03c0\/180) \u00d7 \u03b8 \u00d7 (Ri + K \u00d7 t)<br \/>\n  &#8211; \u03b8 l\u00e0 g\u00f3c u\u1ed1n (\u0111\u1ed9), Ri b\u00e1n k\u00ednh trong.<br \/>\n&#8211; Bend Deduction (BD):<br \/>\n  &#8211; Setback (SB) = tan(\u03b8\/2) \u00d7 (Ri + t)<br \/>\n  &#8211; BD = 2 \u00d7 SB \u2212 BA<br \/>\n&#8211; Chi\u1ec1u d\u00e0i tri\u1ec3n ph\u00f4i (Flat length):<br \/>\n  &#8211; Flat = \u03a3 chi\u1ec1u d\u00e0i c\u00e1nh \u2212 BD (m\u1ed7i g\u00f3c t\u00ednh BD t\u01b0\u01a1ng \u1ee9ng).<\/p>\n<p>V\u00ed d\u1ee5 t\u00ednh ph\u00f4i cho g\u00f3c 90\u00b0 v\u1edbi 304, t = 2 mm, V = 16 mm:<br \/>\n&#8211; \u01af\u1edbc Ri \u2248 V\/6 \u2248 2.7 mm; ch\u1ecdn K = 0.45<br \/>\n&#8211; BA = (\u03c0\/180) \u00d7 90 \u00d7 (2.7 + 0.45\u00d72) = 1.5708 \u00d7 (2.7 + 0.9) \u2248 1.5708 \u00d7 3.6 \u2248 5.65 mm<br \/>\n&#8211; SB = tan(45\u00b0) \u00d7 (2.7 + 2) = 1 \u00d7 4.7 = 4.7 mm<br \/>\n&#8211; BD = 2\u00d74.7 \u2212 5.65 = 3.75 mm<br \/>\n&#8211; N\u1ebfu hai c\u00e1nh th\u00e0nh ph\u1ea9m A = 30 mm, B = 40 mm \u2192 Flat \u2248 30 + 40 \u2212 3.75 = 66.25 mm<br \/>\n&#8211; Sau ch\u1ea1y th\u1eed, hi\u1ec7u ch\u1ec9nh K ho\u1eb7c Ri th\u1ef1c \u0111o \u0111\u1ec3 ch\u1ed1t BD chu\u1ea9n cho l\u00f4 s\u1ea3n xu\u1ea5t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do_sau_chan_va_kiem_soat_goc\"><\/span>\u0110\u1ed9 s\u00e2u ch\u1ea5n v\u00e0 ki\u1ec3m so\u00e1t g\u00f3c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&#8211; Tr\u00ean m\u00e1y CNC, \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng chi\u1ec1u s\u00e2u Y. M\u1ed1i quan h\u1ec7 g\u00f3c\u2013\u0111\u1ed9 s\u00e2u ph\u1ee5 thu\u1ed9c V, Rp v\u00e0 v\u1eadt li\u1ec7u.<br \/>\n&#8211; Quy tr\u00ecnh chu\u1ea9n:<br \/>\n  &#8211; Ch\u1ea1y th\u1eed, \u0111o g\u00f3c th\u1eadt b\u1eb1ng th\u01b0\u1edbc \u0111o g\u00f3c ho\u1eb7c c\u1ea3m bi\u1ebfn.<br \/>\n  &#8211; Hi\u1ec7u ch\u1ec9nh theo t\u1ec9 l\u1ec7: m\u1ed7i 0.1 mm thay \u0111\u1ed5i \u0111\u1ed9 s\u00e2u c\u00f3 th\u1ec3 thay \u0111\u1ed5i 0.5\u20131.5\u00b0 t\u00f9y V v\u00e0 t (ghi l\u1ea1i \u201cb\u1ea3n \u0111\u1ed3\u201d m\u00e1y\u2013d\u1ee5ng c\u1ee5 cho l\u1ea7n sau).<br \/>\n  &#8211; D\u00f9ng crowning\/c\u1ed1i ch\u00eam \u0111\u1ec3 lo\u1ea1i tr\u1eeb c\u00f4n g\u00f3c theo chi\u1ec1u d\u00e0i.<\/p>\n<h2 id=\"toc-4-ban-kinh-toi-thieu-va-huong-can\"><span class=\"ez-toc-section\" id=\"Ban_kinh_toi_thieu_va_huong_can\"><\/span>B\u00e1n k\u00ednh t\u1ed1i thi\u1ec3u v\u00e0 h\u01b0\u1edbng c\u00e1n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; Nguy\u00ean t\u1eafc an to\u00e0n v\u1edbi inox:<br \/>\n  &#8211; U\u1ed1n vu\u00f4ng g\u00f3c v\u1edbi h\u01b0\u1edbng c\u00e1n \u0111\u1ec3 gi\u1ea3m nguy c\u01a1 n\u1ee9t m\u00e9p.<br \/>\n  &#8211; B\u00e1n k\u00ednh trong t\u1ed1i thi\u1ec3u khuy\u1ebfn ngh\u1ecb:<br \/>\n    &#8211; 304\/316: \u2265 1.0t (vu\u00f4ng g\u00f3c v\u00e2n c\u00e1n), \u2265 1.5\u20132.0t (song song v\u00e2n c\u00e1n)<br \/>\n    &#8211; 201: \u2265 1.0\u20131.5t<br \/>\n    &#8211; 430: \u2265 1.5\u20132.0t, tr\u00e1nh coining b\u00e1n k\u00ednh r\u1ea5t nh\u1ecf<br \/>\n&#8211; N\u1ebfu c\u1ea7n b\u00e1n k\u00ednh nh\u1ecf h\u01a1n: d\u00f9ng \u1ee7 m\u1ec1m (n\u1ebfu kh\u1ea3 thi), t\u0103ng V v\u1eeba ph\u1ea3i v\u00e0 chuy\u1ec3n sang bottoming c\u00f3 ki\u1ec3m so\u00e1t, th\u1eed m\u1eabu tr\u01b0\u1edbc s\u1ea3n xu\u1ea5t lo\u1ea1t.<\/p>\n<h2 id=\"toc-5-quy-trinh-thiet-lap-chan-chinh-xac-tai-xuong\"><span class=\"ez-toc-section\" id=\"Quy_trinh_thiet_lap_chan_chinh_xac_tai_xuong\"><\/span>Quy tr\u00ecnh thi\u1ebft l\u1eadp ch\u1ea5n ch\u00ednh x\u00e1c t\u1ea1i x\u01b0\u1edfng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>1) X\u00e1c nh\u1eadn m\u00e1c v\u1eadt li\u1ec7u, chi\u1ec1u d\u00e0y th\u1ef1c \u0111o, t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t (2B, HL, BA, c\u00f3 phim b\u1ea3o v\u1ec7 hay kh\u00f4ng).<br \/>\n2) Ch\u1ecdn c\u1ed1i theo V = 8t cho inox 304\/316; ki\u1ec3m tra chi\u1ec1u cao c\u00e1nh t\u1ed1i thi\u1ec3u \u2265 V\/2.<br \/>\n3) Ch\u1ecdn dao c\u00f3 Rp ph\u00f9 h\u1ee3p, b\u1ec1 m\u1eb7t nh\u1eb5n; th\u00eam l\u1edbp b\u1ea3o v\u1ec7 n\u1ebfu c\u1ea7n ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t.<br \/>\n4) T\u00ednh s\u01a1 b\u1ed9 l\u1ef1c ch\u1ea5n v\u00e0 ki\u1ec3m tra kh\u1ea3 n\u0103ng m\u00e1y; \u0111\u1eb7t crowning theo chi\u1ec1u d\u00e0i.<br \/>\n5) T\u00ednh BA\/BD v\u1edbi K = 0.45 (air bending) \u0111\u1ec3 c\u1eaft ph\u00f4i th\u1eed.<br \/>\n6) Ch\u1ea1y 1\u20133 ph\u00f4i, \u0111o h\u1ed3i \u0111\u00e0n h\u1ed3i, hi\u1ec7u ch\u1ec9nh g\u00f3c b\u1eb1ng \u0111\u1ed9 s\u00e2u Y; ghi l\u1ea1i th\u00f4ng s\u1ed1 \u201cchu\u1ea9n\u201d.<br \/>\n7) Ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng: \u0111o g\u00f3c hai \u0111\u1ea7u\u2013gi\u1eefa, ki\u1ec3m tra chi\u1ec1u d\u00e0i c\u00e1nh sau ch\u1ea5n; n\u1ebfu c\u00f4n g\u00f3c, t\u0103ng crowning ho\u1eb7c thay c\u1ed1i d\u00e0i h\u01a1n.<br \/>\n8) Chu\u1ea9n h\u00f3a d\u1eef li\u1ec7u: l\u01b0u V, Rp, K-factor, Y-depth vs g\u00f3c cho t\u1eebng m\u00e1c\u2013b\u1ec1 d\u00e0y.<\/p>\n<h2 id=\"toc-6-loi-thuong-gap-va-cach-khac-phuc\"><span class=\"ez-toc-section\" id=\"Loi_thuong_gap_va_cach_khac_phuc\"><\/span>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; N\u1ee9t m\u00e9p \u1edf b\u00e1n k\u00ednh: t\u0103ng Ri (V l\u1edbn h\u01a1n), u\u1ed1n vu\u00f4ng g\u00f3c v\u00e2n c\u00e1n, chuy\u1ec3n bottoming nh\u1eb9, gi\u1ea3m \u0111\u1ed9 s\u00e2u \u0111\u1ed3ng th\u1eddi t\u0103ng th\u1eed nghi\u1ec7m.<br \/>\n&#8211; G\u00f3c kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u (\u0111\u1ea7u\u2013gi\u1eefa): b\u1ed5 sung crowning, d\u00f9ng c\u1ed1i d\u00e0i li\u1ec1n kh\u1ed1i, ki\u1ec3m tra \u0111\u1ed9 ph\u1eb3ng t\u1ea5m.<br \/>\n&#8211; V\u1ebft h\u1eb1n\/v\u1ebft x\u01b0\u1edbc: t\u0103ng b\u00e1n k\u00ednh vai c\u1ed1i, d\u00f9ng b\u0103ng b\u1ea3o v\u1ec7, ch\u1ecdn V l\u1edbn h\u01a1n, \u0111\u00e1nh b\u00f3ng vai c\u1ed1i.<br \/>\n&#8211; Xo\u1eafn chi ti\u1ebft m\u1ea3nh: s\u1eafp x\u1ebfp tr\u00ecnh t\u1ef1 ch\u1ea5n c\u00e2n \u0111\u1ed1i hai b\u00ean, d\u00f9ng \u0111\u1ed3 g\u00e1 ch\u1eb7n, gi\u1ea3m t\u1ed1c \u0111\u1ed9 \u00e9p.<br \/>\n&#8211; Sai chi\u1ec1u d\u00e0i c\u00e1nh: c\u1eadp nh\u1eadt K-factor theo l\u00f4 v\u1eadt li\u1ec7u, \u0111o l\u1ea1i Ri th\u1ef1c \u0111\u1ec3 t\u00ednh BD ch\u00ednh x\u00e1c.<\/p>\n<h2 id=\"toc-7-quy-tac-nhanh-khi-chan-inox\"><span class=\"ez-toc-section\" id=\"Quy_tac_nhanh_khi_chan_inox\"><\/span>Quy t\u1eafc nhanh khi ch\u1ea5n inox<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; V ch\u1ecdn tr\u01b0\u1edbc: 8t cho 304\/316; 8\u201310t cho 201; \u226510t khi t > 4 mm.<br \/>\n&#8211; Ri \u01b0\u1edbc t\u00ednh: ~ V\/6 (304\/316), ~ V\/5.5 (201 c\u1ee9ng).<br \/>\n&#8211; Over-bend ban \u0111\u1ea7u: 2\u20134\u00b0 cho 304; 3\u20136\u00b0 cho 201; 1\u20133\u00b0 cho 430.<br \/>\n&#8211; Chi\u1ec1u cao c\u00e1nh t\u1ed1i thi\u1ec3u: \u2265 V\/2.<br \/>\n&#8211; \u01afu ti\u00ean u\u1ed1n vu\u00f4ng g\u00f3c h\u01b0\u1edbng c\u00e1n. B\u1ec1 m\u1eb7t \u0111\u1eb9p: lu\u00f4n c\u00f3 l\u1edbp b\u1ea3o v\u1ec7 tr\u00ean vai c\u1ed1i.<\/p>\n<h2 id=\"toc-8-vi-du-tong-hop-nhanh\"><span class=\"ez-toc-section\" id=\"Vi_du_tong_hop_nhanh\"><\/span>V\u00ed d\u1ee5 t\u1ed5ng h\u1ee3p nhanh<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Y\u00eau c\u1ea7u: Inox 304, t = 1.5 mm, g\u00f3c 90\u00b0, c\u00e1nh 25 \u00d7 35 mm, b\u1ec1 m\u1eb7t HL.<br \/>\n&#8211; Ch\u1ecdn c\u1ed1i: V = 12 mm (\u2248 8t), dao Rp \u2248 1.5\u20132.0 mm, c\u00f3 b\u0103ng PET b\u1ea3o v\u1ec7.<br \/>\n&#8211; \u01af\u1edbc Ri \u2248 V\/6 \u2248 2.0 mm, K = 0.45 \u2192 BA = 1.5708 \u00d7 (2 + 0.45\u00d71.5) \u2248 1.5708 \u00d7 2.675 \u2248 4.20 mm.<br \/>\n&#8211; SB = 1 \u00d7 (2 + 1.5) = 3.5 mm; BD = 7.0 \u2212 4.20 = 2.80 mm.<br \/>\n&#8211; Flat \u2248 25 + 35 \u2212 2.80 = 57.20 mm.<br \/>\n&#8211; L\u1ef1c: TS 600 MPa \u2192 P \u2248 0.136 \u00d7 600 \u00d7 2.25 \/ 12 \u2248 15.3 t\/m. M\u00e1y 60 t\u1ea5n ch\u1ea5n \u0111\u01b0\u1ee3c ~3.5\u20134 m (c\u00f3 d\u1ef1 ph\u00f2ng).<br \/>\n&#8211; Over-bend d\u1ef1 ki\u1ebfn 3\u00b0. Ch\u1ea1y th\u1eed, hi\u1ec7u ch\u1ec9nh Y \u0111\u1ec3 \u0111\u1ea1t \u0111\u1ee7 90\u00b0 v\u00e0 ch\u1ed1t th\u00f4ng s\u1ed1.<\/p>\n<h2 id=\"toc-9-tai-lieu-tham-khao\"><span class=\"ez-toc-section\" id=\"Tai_lieu_tham_khao\"><\/span>T\u00e0i li\u1ec7u tham kh\u1ea3o<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&#8211; WILA Tooling \u2013 Air bending basics: ch\u1ecdn V theo quy t\u1eafc 6\u20138\u201310, b\u00e1n k\u00ednh trong \u2248 V\/6, v\u00e0 bi\u1ec3u \u0111\u1ed3 l\u1ef1c ch\u1ea5n. Ngu\u1ed3n: wila.nl<br \/>\n&#8211; AMADA Press Brake Tooling Data Book \u2013 d\u1eef li\u1ec7u dao c\u1ed1i, quy t\u1eafc ch\u1ecdn V, quan h\u1ec7 g\u00f3c\u2013\u0111\u1ed9 s\u00e2u. Ngu\u1ed3n: amada.com<br \/>\n&#8211; SSINA \u2013 Fabrication of Stainless Steel: khuy\u1ebfn ngh\u1ecb b\u00e1n k\u00ednh t\u1ed1i thi\u1ec3u, \u1ea3nh h\u01b0\u1edfng h\u01b0\u1edbng c\u00e1n. Ngu\u1ed3n: ssina.com<br \/>\n&#8211; TRUMPF\/Bystronic application notes \u2013 t\u00ednh l\u1ef1c ch\u1ea5n, b\u00f9 h\u1ed3i \u0111\u00e0n h\u1ed3i, thi\u1ebft l\u1eadp crowning. Ngu\u1ed3n: trumpf.com, bystronic.com<\/p>\n<p>K\u1ebft lu\u1eadn<br \/>\nCh\u00eca kh\u00f3a ch\u1ea5n g\u1ea5p inox ch\u00ednh x\u00e1c n\u1eb1m \u1edf ba \u0111i\u1ec3m: ch\u1ecdn \u0111\u00fang V v\u00e0 h\u00ecnh h\u1ecdc dao\u2013c\u1ed1i theo chi\u1ec1u d\u00e0y v\u00e0 m\u00e1c inox; t\u00ednh l\u1ef1c theo TS, t v\u00e0 V \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n m\u00e1y; v\u00e0 ki\u1ec3m so\u00e1t g\u00f3c b\u1eb1ng b\u00f9 h\u1ed3i \u0111\u00e0n h\u1ed3i, BA\/BD d\u1ef1a tr\u00ean K-factor \u0111\u00e3 hi\u1ec7u ch\u1ec9nh th\u1ef1c t\u1ebf. \u00c1p d\u1ee5ng quy t\u1eafc V = 8t cho 304\/316, \u01b0\u1edbc Ri \u2248 V\/6, over-bend 2\u20134\u00b0, c\u1ed9ng d\u1ef1 ph\u00f2ng l\u1ef1c 10\u201320%, b\u1ea1n s\u1ebd \u0111\u1ea1t g\u00f3c \u1ed5n \u0111\u1ecbnh, h\u1ea1n ch\u1ebf v\u1ebft x\u01b0\u1edbc v\u00e0 kh\u00f4ng n\u1ee9t m\u00e9p, s\u1eb5n s\u00e0ng s\u1ea3n xu\u1ea5t lo\u1ea1t v\u1edbi \u0111\u1ed9 l\u1eb7p l\u1ea1i cao.<\/p>\n<p>C\u1ea7n t\u01b0 v\u1ea5n ch\u1ecdn dao\u2013c\u1ed1i theo t\u1eebng \u0111\u01a1n h\u00e0ng, t\u1ed1i \u01b0u l\u1ef1c ch\u1ea5n v\u00e0 t\u00ednh to\u00e1n BD\/BA cho b\u1ea3n v\u1ebd? Li\u00ean h\u1ec7 Inox C\u01b0\u1eddng Th\u1ecbnh \u0111\u1ec3 \u0111\u01b0\u1ee3c k\u1ef9 s\u01b0 h\u1ed7 tr\u1ee3 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 dao, c\u1ed1i ch\u1ea5n inox; t\u00ednh l\u1ef1c, g\u00f3c, b\u00e1n k\u00ednh, b\u00f9 h\u1ed3i \u0111\u00e0n h\u1ed3i v\u00e0 chi\u1ec1u d\u00e0i ph\u00e1t tri\u1ec3n theo m\u00e1c inox. C\u00f3 c\u00f4ng th\u1ee9c, v\u00ed d\u1ee5, quy t\u1eafc 6\u20138\u201310.<\/p>\n","protected":false},"author":7,"featured_media":1042,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2279","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\/2279","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=2279"}],"version-history":[{"count":0,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/posts\/2279\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media\/1042"}],"wp:attachment":[{"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/media?parent=2279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/categories?post=2279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inoxcuongthinh.com\/inct\/wp\/v2\/tags?post=2279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}