{"id":17412,"date":"2021-12-23T09:25:44","date_gmt":"2021-12-23T09:25:44","guid":{"rendered":"https:\/\/tooling.harsle.com\/?p=17412"},"modified":"2022-01-04T12:50:44","modified_gmt":"2022-01-04T12:50:44","slug":"what-you-should-know-about-the-basic-knowledge-of-bending-tooling","status":"publish","type":"post","link":"https:\/\/tooling.harsle.com\/vi\/what-you-should-know-about-the-basic-knowledge-of-bending-tooling\/","title":{"rendered":"Nh\u1eefng \u0111i\u1ec1u b\u1ea1n n\u00ean bi\u1ebft v\u1ec1 ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n c\u1ee7a d\u1ee5ng c\u1ee5 u\u1ed1n"},"content":{"rendered":"<p class=\"yoast-reading-time__wrapper\"><span class=\"yoast-reading-time__icon\"><\/span><span class=\"yoast-reading-time__descriptive-text\">Th\u1eddi gian \u0111\u1ecdc \u01b0\u1edbc t\u00ednh:  <\/span><span class=\"yoast-reading-time__reading-time\">9<\/span><span class=\"yoast-reading-time__time-unit\"> ph\u00fat<\/span><\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img class=\"wd-lazy-fade\" decoding=\"async\" width=\"800\" height=\"528\" src=\"https:\/\/tooling.harsle.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/The-Bending-Tooling-1.jpg\" alt=\"d\u1ee5ng c\u1ee5 u\u1ed1n, l\u1ef1a ch\u1ecdn d\u1ee5ng c\u1ee5 u\u1ed1n, d\u1ee5ng c\u1ee5 t\u00f9y ch\u1ec9nh\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/The-Bending-Tooling-1.jpg 800w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/The-Bending-Tooling-1-300x198.jpg 300w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/The-Bending-Tooling-1-768x507.jpg 768w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/The-Bending-Tooling-1-18x12.jpg 18w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/The-Bending-Tooling-1-600x396.jpg 600w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/The-Bending-Tooling-1-150x99.jpg 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"M\u00e1y \u00e9p th\u1ee7y l\u1ef1c WC67K-600T6000 v\u1edbi CYBELEC CT8, M\u00e1y u\u1ed1n kim lo\u1ea1i t\u1ea5m HARSLE\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/xUfEFShcc2U?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><font style=\"vertical-align: inherit;\"><font style=\"vertical-align: inherit;\">C\u00e1c lo\u1ea1i khu\u00f4n tr\u00ean v\u00e0 d\u01b0\u1edbi c\u1ee7a <a href=\"https:\/\/youtu.be\/xUfEFShcc2U\" target=\"_blank\" rel=\"noopener\">m\u00e1y u\u1ed1n<\/a><\/font><\/font><a href=\"http:\/\/The following items are:- Electric Hydraulic Press Machine 60-ton capacity with a travel of 400mm maximum. Height of opening - 900mm Distance between Left and Right Columns - 820mm Distance between Front and Back Columns - 300mm Rated power - 3kW Pump - 6.5MCY Thanks &amp; Best Regards.\"><font style=\"vertical-align: inherit;\"><\/font><\/a><\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\"><li>C\u00e1c lo\u1ea1i khu\u00f4n tr\u00ean c\u1ee7a m\u00e1y u\u1ed1n ph\u1ed5 bi\u1ebfn (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 d\u1ee5ng c\u1ee5 u\u1ed1n) l\u00e0 r = 0,2 v\u00e0 R = 0,6, v\u00e0 c\u00e1c g\u00f3c c\u1ee7a d\u1ee5ng c\u1ee5 l\u00e0 88 \u00b0 v\u00e0 90 \u00b0. H\u00ecnh b\u00ean d\u01b0\u1edbi cho th\u1ea5y khu\u00f4n tr\u00ean u\u1ed1n \u0111\u01b0\u1ee3c 88\u00b0.<\/li><\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"680\" height=\"828\" src=\"https:\/\/tooling.harsle.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72471.png\" alt=\"khu\u00f4n tr\u00ean u\u1ed1n 88 \u00b0\" class=\"wd-lazy-fade wp-image-17415\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72471.png 680w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72471-246x300.png 246w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72471-10x12.png 10w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72471-600x731.png 600w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72471-150x183.png 150w\" sizes=\"(max-width: 680px) 100vw, 680px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<p>Khu\u00f4n tr\u00ean c\u1ee7a <a href=\"https:\/\/bending.harsle.com\/product\/100t-cnc-metal-bending-machine-2200-mm-cnc-sheet-press-brake\/\" target=\"_blank\" rel=\"noopener\">m\u00e1y u\u1ed1n<\/a> c\u00f3 hai lo\u1ea1i: lo\u1ea1i t\u00edch ph\u00e2n (Chi\u1ec1u d\u00e0i khu\u00f4n tr\u00ean t\u00edch ph\u00e2n (mm): 835) v\u00e0 lo\u1ea1i chia \u0111\u00f4i (Chi\u1ec1u d\u00e0i khu\u00f4n tr\u00ean chia \u0111\u00f4i (mm): 10, 15, 20, 40, 50, 100, 200, 400).<\/p>\n\n\n\n<p>2. C\u00e1c k\u00edch th\u01b0\u1edbc r\u00e3nh ch\u1eef V ph\u1ed5 bi\u1ebfn c\u1ee7a khu\u00f4n d\u01b0\u1edbi (hay c\u00f2n g\u1ecdi l\u00e0 r\u00e3nh ch\u1eef V) c\u1ee7a m\u00e1y u\u1ed1n bao g\u1ed3m V4, V5, V6, V7, V8, V10, V12, V16 v\u00e0 v25. (V\u00ed d\u1ee5: \u201cV5\u201d cho bi\u1ebft \u0111\u1ed9 ho\u00e0n thi\u1ec7n c\u1ee7a r\u00e3nh ch\u1eef V l\u00e0 5 mm) c\u00f3 hai g\u00f3c r\u00e3nh ch\u1eef V ph\u1ed5 bi\u1ebfn: 88 \u00b0 v\u00e0 90 \u00b0, v\u00e0 c\u00e1c lo\u1ea1i m\u00e1y u\u1ed1n khu\u00f4n d\u01b0\u1edbi ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong h\u00ecnh b\u00ean d\u01b0\u1edbi.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/tooling.harsle.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72472.png\" alt=\" khu\u00f4n d\u01b0\u1edbi ph\u1ed5 bi\u1ebfn\" class=\"wd-lazy-fade wp-image-17416\" width=\"940\" height=\"259\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72472.png 663w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72472-300x83.png 300w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72472-18x5.png 18w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72472-600x166.png 600w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72472-150x41.png 150w\" sizes=\"(max-width: 940px) 100vw, 940px\" \/><figcaption>      khu\u00f4n d\u1eadp ph\u1eb3ng ch\u1eef V \u0111\u01a1n 85 \u0111\u1ed9 \u0111\u01a1n V90 \u0111\u1ed9 \u0111\u00f4i V90 \u0111\u1ed9 \u0111\u00f4i V88 \u0111\u1ed9                                                                                                                              <\/figcaption><\/figure>\n\n\n\n<p>Khu\u00f4n d\u01b0\u1edbi c\u1ee7a m\u00e1y u\u1ed1n c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh hai lo\u1ea1i: khu\u00f4n tr\u00ean t\u00edch ph\u00e2n (Chi\u1ec1u d\u00e0i khu\u00f4n tr\u00ean t\u00edch ph\u00e2n (mm): 835) v\u00e0 khu\u00f4n tr\u00ean chia \u0111\u00f4i(Chi\u1ec1u d\u00e0i khu\u00f4n tr\u00ean chia \u0111\u00f4i (mm): 10, 15, 20, 40, 50, 100, 200, 400).<\/p>\n\n\n\n<p>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 ch\u1ecdn khu\u00f4n u\u1ed1n trong qu\u00e1 tr\u00ecnh u\u1ed1n?<\/p>\n\n\n\n<p>1. Ch\u1ecdn khu\u00f4n \u00e1p d\u1ee5ng theo h\u00ecnh d\u1ea1ng, k\u00edch th\u01b0\u1edbc v\u00e0 g\u00f3c R b\u00ean trong \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u tr\u00ean b\u1ea3n v\u1ebd quy tr\u00ecnh sau khi t\u1ea1o ph\u00f4i.<\/p>\n\n\n\n<p>2. Xem x\u00e9t \u0111\u1ea7y \u0111\u1ee7 c\u00e1c b\u1ea5t th\u01b0\u1eddng c\u00f3 th\u1ec3 x\u1ea3y ra trong qu\u00e1 tr\u00ecnh t\u1ea1o h\u00ecnh, ch\u1eb3ng h\u1ea1n nh\u01b0 mi\u1ec7ng l\u1ee3n, \u0111inh t\u00e1n, khu\u00f4n d\u1eadp, m\u00e1y m\u00f3c, va ch\u1ea1m g\u1ea5p ph\u00f4i, v.v.<\/p>\n\n\n\n<p>3. L\u1ef1a ch\u1ecdn r\u00e3nh ch\u1eef V khi u\u1ed1n ph\u00f4i<\/p>\n\n\n\n<p>Theo \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u kh\u00e1c nhau, vi\u1ec7c l\u1ef1a ch\u1ecdn r\u00e3nh ch\u1eef V c\u0169ng kh\u00e1c nhau<\/p>\n\n\n\n<p>Khi t \u2264 4mm, V khe = t * 6 l\u1ea7n; Khi t \u2265 4mm, V khe = t * 8 l\u1ea7n.<\/p>\n\n\n\n<p>4. L\u01b0u \u00fd: trong qu\u00e1 tr\u00ecnh u\u1ed1n 90 \u00b0, chi\u1ec1u r\u1ed9ng t\u1ed1i thi\u1ec3u c\u1ee7a r\u00e3nh \u201cV\u201d kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1ecf h\u01a1n 4T, n\u1ebfu kh\u00f4ng khu\u00f4n c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng ho\u1eb7c ph\u00f4i c\u00f3 th\u1ec3 b\u1ecb lo\u1ea1i b\u1ecf.<\/p>\n\n\n\n<p>5. N\u1ebfu k\u00edch th\u01b0\u1edbc g\u1ea5p qu\u00e1 nh\u1ecf v\u00e0 kh\u00f4ng c\u00f3 r\u00e3nh ch\u1eef \u201cV\u201d th\u00ec ph\u1ea3i s\u1eed d\u1ee5ng 4T, tr\u01b0\u1edbc ti\u00ean h\u00e3y g\u1ea5p m\u1ed9t g\u00f3c t\u00f9 th\u00edch h\u1ee3p, sau \u0111\u00f3 g\u1ea5p 90 \u00b0 v\u1edbi r\u00e3nh ch\u1eef \u201cV\u201d l\u1edbn.<\/p>\n\n\n\n<p>6. L\u00e0m s\u1ea1ch ho\u00e0n to\u00e0n khu\u00f4n khu\u00f4n v\u00e0 \u0111\u1ebf khu\u00f4n m\u00e1y c\u00f4ng c\u1ee5 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 b\u1ee5i v\u00e0 v\u1eadt c\u1ee9ng;<\/p>\n\n\n\n<p>7. L\u1ea5y t\u00e2m m\u00e1y c\u00f4ng c\u1ee5 c\u00f3 khu\u00f4n tr\u00ean v\u00e0 d\u01b0\u1edbi ra v\u1edbi chi\u1ec1u d\u00e0i \u00edt nh\u1ea5t 300mm, ch\u00fa \u00fd \u00e1p l\u1ef1c th\u00edch h\u1ee3p \u0111\u1ec3 tr\u00e1nh l\u00e0m b\u1eb9p khu\u00f4n.<\/p>\n\n\n\n<p>8. Thay th\u1ebf khu\u00f4n th\u00edch h\u1ee3p c\u1ea7n thi\u1ebft cho quy tr\u00ecnh n\u00e0y, k\u1eb9p l\u00ean v\u00e0 xu\u1ed1ng t\u1ea1i ch\u1ed7 v\u00e0 kh\u00f3a v\u00edt\/n\u1eb9p bu\u1ed9c.<\/p>\n\n\n\n<p>9. Khu\u00f4n ph\u1ea3i \u0111\u01b0\u1ee3c k\u1eb9p \u1edf gi\u1eefa m\u00e1y c\u00f4ng c\u1ee5 c\u00e0ng xa c\u00e0ng t\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00e1y c\u00f4ng c\u1ee5 ho\u1ea1t \u0111\u1ed9ng b\u1ec1n v\u1eefng v\u00e0 \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n<p>L\u00e0m Th\u1ebf N\u00e0o \u0110\u1ec3 S\u1eed D\u1ee5ng M\u00e1y U\u1ed1n Khu\u00f4n An To\u00e0n V\u00e0 \u0110\u00fang C\u00e1ch?<\/p>\n\n\n\n<p>Quy tr\u00ecnh v\u1eadn h\u00e0nh an to\u00e0n cho khu\u00f4n m\u00e1y u\u1ed1n ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1c n\u1ed9i dung sau:<\/p>\n\n\n\n<p>1. Ki\u1ec3m tra m\u1ee9c \u0111\u1ed9 tr\u00f9ng kh\u1edbp v\u00e0 \u0111\u1ed9 c\u1ee9ng c\u1ee7a khu\u00f4n tr\u00ean v\u00e0 khu\u00f4n d\u01b0\u1edbi, thi\u1ebft b\u1ecb \u0111\u1ecbnh v\u1ecb c\u00f3 ch\u00ednh x\u00e1c kh\u00f4ng, c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng b\u00ecnh th\u01b0\u1eddng kh\u00f4ng v\u00e0 c\u00f3 v\u1ea5n \u0111\u1ec1 n\u00e0o kh\u00e1c kh\u00f4ng. N\u00f3 ch\u1ec9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng sau khi kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec, n\u1ebfu kh\u00f4ng, n\u00f3 kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<p>2. V\u1ecb tr\u00ed c\u1ee7a khu\u00f4n tr\u00ean b\u00e0n l\u00e0m vi\u1ec7c ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf gi\u1eefa.<\/p>\n\n\n\n<p>3. Vi\u1ec7c v\u1eadn h\u00e0nh khu\u00f4n ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n khi thi\u1ebft b\u1ecb t\u1eaft v\u00e0 d\u1eebng.<\/p>\n\n\n\n<p>4. \u0110\u1ed1i v\u1edbi vi\u1ec7c d\u1eadp khu\u00f4n, c\u00e1c \u0111\u1ebf khu\u00f4n tr\u00ean v\u00e0 d\u01b0\u1edbi ph\u1ea3i \u0111\u01b0\u1ee3c \u00e9p \u0111\u1ec3 khu\u00f4n kh\u00f4ng b\u1ecb h\u01b0 h\u1ecfng.<\/p>\n\n\n\n<p>5. Nghi\u00eam c\u1ea5m \u0111\u1ea5m m\u1ed9t m\u00ecnh v\u00e0o m\u1ed9t \u0111\u1ea7u.<\/p>\n\n\n\n<p>6. Tr\u01b0\u1edbc khi thay \u0111\u1ed5i c\u00e0i \u0111\u1eb7t, h\u00e3y ki\u1ec3m tra xem b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n thay \u0111\u1ed5i hay kh\u00f4ng.<\/p>\n\n\n\n<p>7. Vi\u1ec7c b\u1ed1c d\u1ee1 khu\u00f4n \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh khi thi\u1ebft b\u1ecb ng\u1eebng ch\u1ea1y.<\/p>\n\n\n\n<p>s\u1ed1 8 . Kh\u00f4ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh thi\u1ebft b\u1ecb an to\u00e0n v\u00e0 n\u1eafp b\u1ea3o v\u1ec7 an to\u00e0n khi ch\u01b0a \u0111\u01b0\u1ee3c ph\u00e9p \u0111\u1ec3 tr\u00e1nh c\u00e1c s\u1ef1 c\u1ed1.<\/p>\n\n\n\n<p>9. Khu\u00f4n ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean xem c\u00f3 b\u1ecb h\u01b0 h\u1ecfng hay h\u01b0 h\u1ecfng g\u00ec kh\u00f4ng. N\u1ebfu v\u1eady, n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa ho\u1eb7c thay th\u1ebf.<\/p>\n\n\n\n<p>C\u00e1c lo\u1ea1i u\u1ed1n khu\u00f4n c\u1ee5 th\u1ec3 l\u00e0 g\u00ec? L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb m\u1edf r\u1ed9ng?<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng th\u1ee9c th\u1ef1c hi\u1ec7n c\u1ee5 th\u1ec3 s\u1ebd \u1edf c\u00e1c kh\u00eda c\u1ea1nh sau:<\/p>\n\n\n\n<p>1. C\u00e1c \u0111\u1ecbnh ngh\u0129a c\u1ee7a hai thu\u1eadt to\u00e1n b\u00f9 u\u1ed1n v\u00e0 kh\u1eed u\u1ed1n, v\u00e0 m\u1ed1i quan h\u1ec7 t\u01b0\u01a1ng \u1ee9ng c\u1ee7a ch\u00fang v\u1edbi h\u00ecnh h\u1ecdc kim lo\u1ea1i t\u1ea5m th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p>2. Gi\u1ea3m u\u1ed1n t\u01b0\u01a1ng \u1ee9ng v\u1edbi b\u00f9 u\u1ed1n nh\u01b0 th\u1ebf n\u00e0o? L\u00e0m c\u00e1ch n\u00e0o \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng \u00e1p d\u1ee5ng thu\u1eadt to\u00e1n kh\u1ea5u tr\u1eeb u\u1ed1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u c\u1ee7a h\u1ecd sang thu\u1eadt to\u00e1n b\u00f9 u\u1ed1n?<\/p>\n\n\n\n<p>3. Kh\u00e1i ni\u1ec7m v\u1ec1 h\u1ec7 s\u1ed1 K, c\u00e1ch s\u1eed d\u1ee5ng h\u1ec7 s\u1ed1 K trong th\u1ef1c t\u1ebf, bao g\u1ed3m ph\u1ea1m vi \u00e1p d\u1ee5ng c\u1ee7a gi\u00e1 tr\u1ecb h\u1ec7 s\u1ed1 K cho c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u kh\u00e1c nhau.<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p b\u1ed3i th\u01b0\u1eddng u\u1ed1n<\/p>\n\n\n\n<p>Thu\u1eadt to\u00e1n b\u00f9 u\u1ed1n m\u00f4 t\u1ea3 chi\u1ec1u d\u00e0i khi m\u1edf ra (LT) c\u1ee7a b\u1ed9 ph\u1eadn l\u00e0 t\u1ed5ng c\u1ee7a m\u1ed7i chi\u1ec1u d\u00e0i sau khi b\u1ed9 ph\u1eadn \u0111\u01b0\u1ee3c l\u00e0m ph\u1eb3ng, c\u1ed9ng v\u1edbi chi\u1ec1u d\u00e0i c\u1ee7a khu v\u1ef1c u\u1ed1n \u0111\u00e3 l\u00e0m ph\u1eb3ng. Chi\u1ec1u d\u00e0i c\u1ee7a khu v\u1ef1c u\u1ed1n ph\u1eb3ng \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng gi\u00e1 tr\u1ecb b\u00f9 u\u1ed1n (BA). Do \u0111\u00f3, chi\u1ec1u d\u00e0i c\u1ee7a to\u00e0n b\u1ed9 ph\u1ea7n \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng ph\u01b0\u01a1ng tr\u00ecnh (1):<\/p>\n\n\n\n<p>LT = D1 + D2 + BA (1)<\/p>\n\n\n\n<p>Khu v\u1ef1c u\u1ed1n cong (\u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng m\u00e0u v\u00e0ng nh\u1ea1t trong h\u00ecnh) l\u00e0 khu v\u1ef1c b\u1ecb bi\u1ebfn d\u1ea1ng v\u1ec1 m\u1eb7t l\u00fd thuy\u1ebft trong qu\u00e1 tr\u00ecnh u\u1ed1n. N\u00f3i t\u00f3m l\u1ea1i, \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc h\u00ecnh h\u1ecdc c\u1ee7a c\u00e1c ph\u1ea7n ch\u01b0a m\u1edf, h\u00e3y suy ngh\u0129 nh\u01b0 sau:<\/p>\n\n\n\n<p>1. C\u1eaft khu v\u1ef1c u\u1ed1n t\u1eeb ph\u1ea7n t\u1ed1t nh\u1ea5t<\/p>\n\n\n\n<p>2. \u0110\u1eb7t hai ph\u1ea7n ph\u1eb3ng c\u00f2n l\u1ea1i tr\u00ean b\u00e0n<\/p>\n\n\n\n<p>3. T\u00ednh chi\u1ec1u d\u00e0i c\u1ee7a v\u00f9ng u\u1ed1n sau khi \u0111\u01b0\u1ee3c l\u00e0m ph\u1eb3ng<\/p>\n\n\n\n<p>4. Li\u00ean k\u1ebft khu v\u1ef1c u\u1ed1n ph\u1eb3ng gi\u1eefa hai ph\u1ea7n ph\u1eb3ng v\u00e0 k\u1ebft qu\u1ea3 l\u00e0 ph\u1ea7n m\u1edf ra m\u00e0 ch\u00fang ta c\u1ea7n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"633\" height=\"193\" src=\"https:\/\/tooling.harsle.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72473.png\" alt=\"d\u1ee5ng c\u1ee5 u\u1ed1n\" class=\"wd-lazy-fade wp-image-17417\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72473.png 633w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72473-300x91.png 300w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72473-18x5.png 18w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72473-600x183.png 600w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72473-150x46.png 150w\" sizes=\"(max-width: 633px) 100vw, 633px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<p>Ph\u01b0\u01a1ng ph\u00e1p nh\u00e2n t\u1ed1 K<\/p>\n\n\n\n<p>H\u1ec7 s\u1ed1 K l\u00e0 m\u1ed9t gi\u00e1 tr\u1ecb \u0111\u1ed9c l\u1eadp m\u00f4 t\u1ea3 c\u00e1ch t\u1ea5m kim lo\u1ea1i u\u1ed1n cong\/m\u1edf ra d\u01b0\u1edbi m\u1ed9t lo\u1ea1t c\u00e1c tham s\u1ed1 h\u00ecnh h\u1ecdc. N\u00f3 c\u0169ng l\u00e0 m\u1ed9t gi\u00e1 tr\u1ecb \u0111\u1ed9c l\u1eadp \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh to\u00e1n b\u00f9 u\u1ed1n (BA) trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p nh\u01b0 \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u kh\u00e1c nhau, b\u00e1n k\u00ednh u\u1ed1n\/g\u00f3c u\u1ed1n, v.v. H\u00ecnh 5 s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u00fap ch\u00fang ta hi\u1ec3u \u0111\u1ecbnh ngh\u0129a chi ti\u1ebft v\u1ec1 K- h\u1ec7 s\u1ed1.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/tooling.harsle.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72476.png\" alt=\"d\u1ee5ng c\u1ee5 u\u1ed1n\" class=\"wd-lazy-fade wp-image-17418\" width=\"624\" height=\"200\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72476.png 492w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72476-300x96.png 300w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72476-18x6.png 18w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/\u56fe\u72476-150x48.png 150w\" sizes=\"(max-width: 624px) 100vw, 624px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<p>Ch\u00fang ta c\u00f3 th\u1ec3 ch\u1eafc ch\u1eafn r\u1eb1ng c\u00f3 m\u1ed9t l\u1edbp ho\u1eb7c tr\u1ee5c trung t\u00ednh trong \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u c\u1ee7a ph\u1ea7n kim lo\u1ea1i t\u1ea5m. V\u1eadt li\u1ec7u kim lo\u1ea1i t\u1ea5m trong l\u1edbp trung t\u00ednh trong v\u00f9ng u\u1ed1n kh\u00f4ng b\u1ecb k\u00e9o c\u0103ng c\u0169ng kh\u00f4ng b\u1ecb n\u00e9n, ngh\u0129a l\u00e0 n\u01a1i duy nh\u1ea5t kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng trong v\u00f9ng u\u1ed1n. qu\u1ea3 sung. 4 v\u00e0 5 hi\u1ec3n th\u1ecb \u0111\u01b0\u1eddng giao nhau c\u1ee7a v\u00f9ng m\u00e0u h\u1ed3ng v\u00e0 v\u00f9ng m\u00e0u xanh lam. Trong qu\u00e1 tr\u00ecnh u\u1ed1n, v\u00f9ng m\u00e0u h\u1ed3ng b\u1ecb n\u00e9n l\u1ea1i v\u00e0 v\u00f9ng m\u00e0u xanh m\u1edf r\u1ed9ng. N\u1ebfu l\u1edbp trung t\u00ednh c\u1ee7a t\u1ea5m kim lo\u1ea1i kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng, chi\u1ec1u d\u00e0i c\u1ee7a v\u00f2ng cung c\u1ee7a l\u1edbp trung t\u00ednh trong khu v\u1ef1c u\u1ed1n l\u00e0 nh\u01b0 nhau \u1edf tr\u1ea1ng th\u00e1i u\u1ed1n v\u00e0 l\u00e0m ph\u1eb3ng c\u1ee7a n\u00f3. Do \u0111\u00f3, BA (b\u00f9 u\u1ed1n) ph\u1ea3i b\u1eb1ng chi\u1ec1u d\u00e0i cung c\u1ee7a l\u1edbp trung h\u00f2a trong v\u00f9ng u\u1ed1n c\u1ee7a ph\u1ea7n kim lo\u1ea1i t\u1ea5m. V\u00f2ng cung \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n b\u1eb1ng m\u00e0u xanh l\u1ee5c trong H\u00ecnh 4. V\u1ecb tr\u00ed c\u1ee7a l\u1edbp trung t\u00ednh c\u1ee7a t\u1ea5m kim lo\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9 d\u1ebbo. Ng\u01b0\u1eddi ta cho r\u1eb1ng kho\u1ea3ng c\u00e1ch gi\u1eefa l\u1edbp trung t\u00ednh c\u1ee7a t\u1ea5m kim lo\u1ea1i v\u00e0 b\u1ec1 m\u1eb7t l\u00e0 \u201ct\u201d, ngh\u0129a l\u00e0 \u0111\u1ed9 s\u00e2u t\u1eeb b\u1ec1 m\u1eb7t c\u1ee7a ph\u1ea7n kim lo\u1ea1i t\u1ea5m \u0111\u1ebfn h\u01b0\u1edbng \u0111\u1ed9 d\u00e0y c\u1ee7a v\u1eadt li\u1ec7u kim lo\u1ea1i t\u1ea5m l\u00e0 t. Do \u0111\u00f3, b\u00e1n k\u00ednh cung c\u1ee7a l\u1edbp kim lo\u1ea1i t\u1ea5m trung t\u00ednh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng (R + T). S\u1eed d\u1ee5ng bi\u1ec3u th\u1ee9c n\u00e0y v\u00e0 g\u00f3c u\u1ed1n, chi\u1ec1u d\u00e0i (BA) c\u1ee7a cung c\u1ee7a l\u1edbp trung t\u00ednh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng:<\/p>\n\n\n\n<p>BA = Pi(R+T)A\/180<\/p>\n\n\n\n<p>\u0110\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a \u0111\u1ecbnh ngh\u0129a v\u1ec1 l\u1edbp trung h\u00f2a kim lo\u1ea1i t\u1ea5m v\u00e0 xem x\u00e9t \u0111\u1ed9 d\u00e0y \u00e1p d\u1ee5ng cho t\u1ea5t c\u1ea3 c\u00e1c v\u1eadt li\u1ec7u, kh\u00e1i ni\u1ec7m h\u1ec7 s\u1ed1 K \u0111\u01b0\u1ee3c \u0111\u01b0a ra. \u0110\u1ecbnh ngh\u0129a c\u1ee5 th\u1ec3 l\u00e0: H\u1ec7 s\u1ed1 K l\u00e0 t\u1ef7 l\u1ec7 \u0111\u1ed9 d\u00e0y c\u1ee7a l\u1edbp trung t\u00ednh c\u1ee7a t\u1ea5m kim lo\u1ea1i v\u1edbi \u0111\u1ed9 d\u00e0y t\u1ed5ng th\u1ec3 c\u1ee7a v\u1eadt li\u1ec7u b\u1ed9 ph\u1eadn kim lo\u1ea1i t\u1ea5m, ngh\u0129a l\u00e0:<\/p>\n\n\n\n<p>k = t\/t<\/p>\n\n\n\n<p>Do \u0111\u00f3, gi\u00e1 tr\u1ecb c\u1ee7a K s\u1ebd lu\u00f4n n\u1eb1m trong kho\u1ea3ng t\u1eeb 0 \u0111\u1ebfn 1. N\u1ebfu h\u1ec7 s\u1ed1 k l\u00e0 0,25, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 l\u1edbp trung t\u00ednh n\u1eb1m \u1edf 25% \u0111\u1ed9 d\u00e0y c\u1ee7a v\u1eadt li\u1ec7u kim lo\u1ea1i t\u1ea5m. T\u01b0\u01a1ng t\u1ef1, n\u1ebfu n\u00f3 l\u00e0 0,5, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 l\u1edbp trung t\u00ednh n\u1eb1m \u1edf 50% c\u1ee7a to\u00e0n b\u1ed9 \u0111\u1ed9 d\u00e0y, v.v. K\u1ebft h\u1ee3p hai ph\u01b0\u01a1ng tr\u00ecnh tr\u00ean ta \u0111\u01b0\u1ee3c ph\u01b0\u01a1ng tr\u00ecnh (8) sau:<\/p>\n\n\n\n<p>BA = Pi(R+K*T)A\/180 (8)<\/p>\n\n\n\n<p>Ph\u01b0\u01a1ng tr\u00ecnh n\u00e0y l\u00e0 c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y trong h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng Solid Works v\u00e0 tr\u1ee3 gi\u00fap tr\u1ef1c tuy\u1ebfn. M\u1ed9t s\u1ed1 gi\u00e1 tr\u1ecb n\u00e0y, ch\u1eb3ng h\u1ea1n nh\u01b0 a, R v\u00e0 T, \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi h\u00ecnh h\u1ecdc th\u1ef1c t\u1ebf. V\u00ec v\u1eady, tr\u1edf l\u1ea1i c\u00e2u h\u1ecfi ban \u0111\u1ea7u, y\u1ebfu t\u1ed1 K \u0111\u1ebfn t\u1eeb \u0111\u00e2u? T\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, c\u00e2u tr\u1ea3 l\u1eddi l\u00e0 t\u1eeb c\u00e1c ngu\u1ed3n c\u0169, t\u1ee9c l\u00e0 nh\u00e0 cung c\u1ea5p v\u1eadt li\u1ec7u kim lo\u1ea1i t\u1ea5m, d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m, kinh nghi\u1ec7m, s\u00e1ch h\u01b0\u1edbng d\u1eabn, v.v. Tuy nhi\u00ean, trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, gi\u00e1 tr\u1ecb \u0111\u01b0a ra c\u00f3 th\u1ec3 kh\u00f4ng r\u00f5 r\u00e0ng c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n \u0111\u1ea7y \u0111\u1ee7 d\u01b0\u1edbi d\u1ea1ng ph\u01b0\u01a1ng tr\u00ecnh (8 ), nh\u01b0ng trong m\u1ecdi tr\u01b0\u1eddng h\u1ee3p, k\u1ec3 c\u1ea3 khi bi\u1ec3u th\u1ee9c kh\u00f4ng gi\u1ed1ng nhau, ta lu\u00f4n t\u00ecm \u0111\u01b0\u1ee3c m\u1ed1i quan h\u1ec7 gi\u1eefa ch\u00fang.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5: n\u1ebfu tr\u1ee5c trung t\u00ednh (l\u1edbp) \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 trong m\u1ed9t s\u1ed1 s\u00e1ch h\u01b0\u1edbng d\u1eabn ho\u1eb7c t\u00e0i li\u1ec7u l\u00e0 \u201c\u0111\u01b0\u1ee3c \u0111\u1ecbnh v\u1ecb \u1edf \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u 0,445x so v\u1edbi b\u1ec1 m\u1eb7t kim lo\u1ea1i t\u1ea5m\u201d, th\u00ec r\u00f5 r\u00e0ng \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 hi\u1ec3u r\u1eb1ng h\u1ec7 s\u1ed1 K l\u00e0 0,445, ngh\u0129a l\u00e0, k = 0,445. Theo c\u00e1ch n\u00e0y, n\u1ebfu thay gi\u00e1 tr\u1ecb c\u1ee7a K v\u00e0o ph\u01b0\u01a1ng tr\u00ecnh (8), c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c c\u00f4ng th\u1ee9c sau:<\/p>\n\n\n\n<p>BA = A (0,01745R + 0,00778T)<\/p>\n\n\n\n<p>N\u1ebfu ph\u01b0\u01a1ng tr\u00ecnh (8) \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c, h\u1eb1ng s\u1ed1 trong ph\u01b0\u01a1ng tr\u00ecnh (8) \u0111\u01b0\u1ee3c t\u00ednh v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c bi\u1ebfn \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i, c\u00f3 th\u1ec3 thu \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 sau:<\/p>\n\n\n\n<p>BA = A (0,01745 R + 0,01745 K*T)<\/p>\n\n\n\n<p>So s\u00e1nh hai ph\u01b0\u01a1ng tr\u00ecnh tr\u00ean ta d\u1ec5 d\u00e0ng c\u00f3 \u0111\u01b0\u1ee3c: 0,01745xk = 0,00778. C\u0169ng d\u1ec5 d\u00e0ng t\u00ednh \u0111\u01b0\u1ee3c k = 0,445.<\/p>\n\n\n\n<p>Sau khi nghi\u00ean c\u1ee9u k\u1ef9, \u0111\u01b0\u1ee3c bi\u1ebft h\u1ec7 th\u1ed1ng Solid Works c\u0169ng cung c\u1ea5p thu\u1eadt to\u00e1n b\u00f9 u\u1ed1n cho c\u00e1c v\u1eadt li\u1ec7u c\u1ee5 th\u1ec3 sau khi g\u00f3c u\u1ed1n l\u00e0 90 \u0111\u1ed9. C\u00f4ng th\u1ee9c t\u00ednh c\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n\n\n\n<p>\u0110\u1ed3ng thau m\u1ec1m ho\u1eb7c v\u1eadt li\u1ec7u \u0111\u1ed3ng m\u1ec1m: Ba = (0,55 * t) + (1,57 * r)<\/p>\n\n\n\n<p>\u0110\u1ed3ng ho\u1eb7c \u0111\u1ed3ng thau b\u00e1n c\u1ee9ng, th\u00e9p nh\u1eb9 v\u00e0 nh\u00f4m: Ba = (0,64 * t) + (1,57 * r)<\/p>\n\n\n\n<p>\u0110\u1ed3ng, \u0111\u1ed3ng c\u1ee9ng, th\u00e9p c\u00e1n ngu\u1ed9i v\u00e0 th\u00e9p l\u00f2 xo: Ba = (0,71 * t) + (1,57 * r)<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-harsle-bending-division wp-block-embed-harsle-bending-division\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/bending.harsle.com\/product\/100t-cnc-metal-bending-machine-2200-mm-cnc-sheet-press-brake\/\n<\/div><\/figure>","protected":false},"excerpt":{"rendered":"<p>Types of Upper And Lower Dies of Bending Machine The common types of bending machine upper die (also known as<\/p>","protected":false},"author":1,"featured_media":17425,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[2120,2122,2121],"class_list":["post-17412","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-brake-tooling","tag-bending-tooling","tag-customized-tools","tag-the-selection-of-bending-tooling"],"jetpack_featured_media_url":"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2021\/12\/The-Bending-Tooling-1.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tooling.harsle.com\/vi\/wp-json\/wp\/v2\/posts\/17412","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tooling.harsle.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tooling.harsle.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tooling.harsle.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tooling.harsle.com\/vi\/wp-json\/wp\/v2\/comments?post=17412"}],"version-history":[{"count":0,"href":"https:\/\/tooling.harsle.com\/vi\/wp-json\/wp\/v2\/posts\/17412\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tooling.harsle.com\/vi\/wp-json\/wp\/v2\/media\/17425"}],"wp:attachment":[{"href":"https:\/\/tooling.harsle.com\/vi\/wp-json\/wp\/v2\/media?parent=17412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tooling.harsle.com\/vi\/wp-json\/wp\/v2\/categories?post=17412"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tooling.harsle.com\/vi\/wp-json\/wp\/v2\/tags?post=17412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}