{"id":2556,"date":"2024-04-01T02:08:05","date_gmt":"2024-04-01T02:08:05","guid":{"rendered":"https:\/\/www.shen-chong.com\/?p=2556"},"modified":"2024-04-01T02:56:34","modified_gmt":"2024-04-01T02:56:34","slug":"press-brake-tonnage-calculator-for-users","status":"publish","type":"post","link":"https:\/\/www.shen-chong.com\/cs\/press-brake-tonnage-calculator-for-users\/","title":{"rendered":"Kalkula\u010dka hmotnosti ohra\u0148ovac\u00edho lisu pro u\u017eivatele"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2556\" class=\"elementor elementor-2556\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-25bd9b5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"25bd9b5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e7715c0\" data-id=\"e7715c0\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9b3e8bb elementor-widget elementor-widget-heading\" data-id=\"9b3e8bb\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-default\">Kalkula\u010dka hmotnosti ohra\u0148ovac\u00edho lisu<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-116da76 elementor-widget elementor-widget-text-editor\" data-id=\"116da76\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>V posledn\u00edch letech se ohra\u0148ovac\u00ed lisy \u0161iroce pou\u017e\u00edvaj\u00ed v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch a rozsah zpracov\u00e1n\u00ed ohra\u0148ovac\u00edch lis\u016f se den ode dne roz\u0161i\u0159uje. Neexistuje v\u0161ak systematick\u00e1 diskuse o v\u00fdpo\u010dtu oh\u00fdbac\u00ed s\u00edly. V tomto \u010dl\u00e1nku se budeme zab\u00fdvat p\u016fvodn\u00edm v\u00fdpo\u010dtov\u00fdm vzorcem oh\u00fdbac\u00ed s\u00edly a zjist\u00edme, jak\u00e9 faktory ji ovliv\u0148uj\u00ed.\u00a0<a href=\"https:\/\/www.shen-chong.com\/cs\/press-brake\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\"><strong><b>ohra\u0148ovac\u00ed lis <\/b><\/strong><\/span><\/a>kalkula\u010dku prostornosti a pochopte, jak se vyhnout nadhodnocen\u00ed nebo podhodnocen\u00ed prostornosti.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b14e8e2 elementor-widget elementor-widget-heading\" data-id=\"b14e8e2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Vzorec pro kalkula\u010dku tun ohra\u0148ovac\u00edho lisu<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ec294f3 elementor-widget elementor-widget-text-editor\" data-id=\"ec294f3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"color: #0000ff;\"><strong>P= 650*S\u00b2*L\/V<\/strong><\/span><\/p><p>P: ohybov\u00e1 s\u00edla (kN)<\/p><p>\u03c3b: Pevnost materi\u00e1lu v tahu, N\/mm (standardn\u00ed \u03c3b = 450 MPa)<\/p><p>t: tlou\u0161\u0165ka plechu (mm)<\/p><p>V: \u0160\u00ed\u0159ka spodn\u00edho otvoru matrice (mm)<\/p><p>L: d\u00e9lka listu (M)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9cb8350 elementor-widget elementor-widget-image\" data-id=\"9cb8350\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"739\" height=\"585\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/04\/press-brake-tonnage-calculation-chart.jpg\" class=\"attachment-full size-full wp-image-2559\" alt=\"tabulka v\u00fdpo\u010dtu hmotnostn\u00ed hmotnosti ohra\u0148ovac\u00edho lisu\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/04\/press-brake-tonnage-calculation-chart.jpg 739w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/04\/press-brake-tonnage-calculation-chart-300x237.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/04\/press-brake-tonnage-calculation-chart-15x12.jpg 15w\" sizes=\"(max-width: 739px) 100vw, 739px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c6a63c elementor-widget elementor-widget-text-editor\" data-id=\"5c6a63c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"color: #0000ff;\"><strong><b>P\u0159\u00edklad v\u00fdpo\u010dtu<\/b><\/strong><\/span><\/p><p>Tlou\u0161\u0165ka plechu z m\u011bkk\u00e9 oceli je 3 mm, d\u00e9lka plechu je 2000 mm, jakou nosnost by si m\u011bl vybrat ohra\u0148ovac\u00ed lis?<\/p><p>P=650*3\u00b2*2\/(3*6)=650KN=65tun<\/p><p>Pro\u010d je zde V=3*6? N\u00e1sleduj\u00edc\u00ed \u010dl\u00e1nek uk\u00e1\u017ee, jak vypo\u010d\u00edtat otvor V spodn\u00ed \u010d\u00e1sti ohra\u0148ovac\u00edho lisu.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-01133b0 elementor-widget elementor-widget-heading\" data-id=\"01133b0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Faktory ovliv\u0148uj\u00edc\u00ed v\u00fdpo\u010det nosnosti ohra\u0148ovac\u00edho lisu<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-72acdf1 elementor-widget elementor-widget-image\" data-id=\"72acdf1\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"650\" height=\"315\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/04\/press-brake-tonnage-calculation-formula.jpg\" class=\"attachment-full size-full wp-image-2560\" alt=\"vzorec pro v\u00fdpo\u010det hmotnostn\u00ed hmotnosti ohra\u0148ovac\u00edho lisu\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/04\/press-brake-tonnage-calculation-formula.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/04\/press-brake-tonnage-calculation-formula-300x145.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/04\/press-brake-tonnage-calculation-formula-18x9.jpg 18w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-543afdf elementor-widget elementor-widget-heading\" data-id=\"543afdf\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Doporu\u010den\u00e9 V-otev\u0159en\u00ed spodn\u00ed matrice<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-623aa29 elementor-widget elementor-widget-text-editor\" data-id=\"623aa29\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>V prvn\u00ed \u0159ad\u011b ovliv\u0148uje v\u00fdpo\u010det hmotnostn\u00ed hmotnosti ohra\u0148ovac\u00edho lisu otvor V spodn\u00ed matrice. Otvor V spodn\u00ed matrice ohra\u0148ovac\u00edho lisu obecn\u011b souvis\u00ed s tlou\u0161\u0165kou materi\u00e1lu. Podle po\u017eadavk\u016f trhu je u plech\u016f o tlou\u0161\u0165ce (t): 0-3 mm \u0161\u00ed\u0159ka dr\u00e1\u017eky V spodn\u00ed matrice ohra\u0148ovac\u00edho lisu V = tlou\u0161\u0165ka plechu (t) * 6; a pro p\u0159esn\u00e9 oh\u00fdb\u00e1n\u00ed se tento koeficient m\u016f\u017ee z\u00fa\u017eit z 6 na 4. U plech\u016f o tlou\u0161\u0165ce (t): 3-10 mm je \u0161\u00ed\u0159ka dr\u00e1\u017eky V spodn\u00ed matrice ohra\u0148ovac\u00edho lisu V = tlou\u0161\u0165ka plechu (t) * 8. U plech\u016f o tlou\u0161\u0165ce (t) 10 mm nebo v\u00edce je \u0161\u00ed\u0159ka dr\u00e1\u017eky spodn\u00ed matrice V = tlou\u0161\u0165ka plechu * 10 nebo 12, jak je uvedeno v tabulce n\u00ed\u017ee.<\/p><p>\u00a0<\/p><table><tbody><tr><td width=\"276\"><p>Tlou\u0161\u0165ka plechu (mm)<\/p><\/td><td width=\"96\"><p>0\u20132,5 mm<\/p><\/td><td width=\"96\"><p>3\u20138 mm<\/p><\/td><td width=\"96\"><p>9\u201310 mm<\/p><\/td><td width=\"144\"><p>nad 12 mm<\/p><\/td><\/tr><tr><td><p>V-rozev\u0159en\u00ed spodn\u00ed matrice (mm)<\/p><\/td><td><p>6*t<\/p><\/td><td><p>8*t<\/p><\/td><td><p>10*t<\/p><\/td><td><p>12*t<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28e78d9 elementor-widget elementor-widget-spacer\" data-id=\"28e78d9\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.20.0 - 13-03-2024 *\/\n.elementor-column .elementor-spacer-inner{height:var(--spacer-size)}.e-con{--container-widget-width:100%}.e-con-inner>.elementor-widget-spacer,.e-con>.elementor-widget-spacer{width:var(--container-widget-width,var(--spacer-size));--align-self:var(--container-widget-align-self,initial);--flex-shrink:0}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container,.e-con>.elementor-widget-spacer>.elementor-widget-container{height:100%;width:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer{height:100%}.e-con-inner>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner,.e-con>.elementor-widget-spacer>.elementor-widget-container>.elementor-spacer>.elementor-spacer-inner{height:var(--container-widget-height,var(--spacer-size))}.e-con-inner>.elementor-widget-spacer.elementor-widget-empty,.e-con>.elementor-widget-spacer.elementor-widget-empty{position:relative;min-height:22px;min-width:22px}.e-con-inner>.elementor-widget-spacer.elementor-widget-empty .elementor-widget-empty-icon,.e-con>.elementor-widget-spacer.elementor-widget-empty .elementor-widget-empty-icon{position:absolute;top:0;bottom:0;left:0;right:0;margin:auto;padding:0;width:22px;height:22px}<\/style>\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97a16ea elementor-widget elementor-widget-heading\" data-id=\"97a16ea\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Pevnost v tahu b\u011b\u017en\u011b pou\u017e\u00edvan\u00fdch materi\u00e1l\u016f<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f3a9ec elementor-widget elementor-widget-text-editor\" data-id=\"3f3a9ec\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Za druh\u00e9, rozd\u00edln\u00e1 pevnost v tahu materi\u00e1lu tak\u00e9 ovliv\u0148uje v\u00fdpo\u010det hmotnostn\u00ed hmotnosti ohra\u0148ovac\u00edho lisu. Symbol pro pevnost v tahu je Rm (star\u00e1 n\u00e1rodn\u00ed norma GB\/T228-1987 stanov\u00ed, \u017ee symbol pevnosti v tahu je ob) a jednotka je MPa (pozn\u00e1mka: N\/mm -=MPa).<\/p><p>Hlin\u00edk: 200\u2013300 N\/mm<\/p><p>M\u011bkk\u00e1 ocel: 370\u2013500 N\/mm (obvykle 450 N\/mm)<\/p><p>Nerezov\u00e1 ocel: 650\u2013700 N\/mm<\/p><p>Pro zjednodu\u0161en\u00ed v\u00fdpo\u010dtu hmotnosti ohra\u0148ovac\u00edho lisu obvykle nejprve vypo\u010d\u00edt\u00e1me hmotnost m\u011bkk\u00e9 oceli a pot\u00e9 \u010dasov\u011b souvisej\u00edc\u00ed sazby.<\/p><p>Hlin\u00edk = hmotnost m\u011bkk\u00e9 oceli * 0,5<\/p><p>Nerezov\u00e1 ocel = hmotnost m\u011bkk\u00e9 oceli * 1,5<\/p><p>\u00a0<\/p><p><strong><span style=\"color: #0000ff;\">P\u0159\u00edklad v\u00fdpo\u010dtu<\/span><\/strong><\/p><p>Tlou\u0161\u0165ka plechu z nerezov\u00e9 oceli je 3 mm, d\u00e9lka plechu je 2500 mm, jak\u00e1 je nosnost ohra\u0148ovac\u00edho lisu?<\/p><p>P=650*3\u00b2*2,5\/(3*6)*1,5=1219 kN=122 tun<\/p><p>\u00a0<\/p><p><span style=\"color: #0000ff;\"><strong>Co je to pevnost v tahu?<\/strong><\/span><\/p><p>Pevnost v tahu je kritick\u00e1 hodnota, p\u0159i kter\u00e9 kov p\u0159ech\u00e1z\u00ed z rovnom\u011brn\u00e9 plastick\u00e9 deformace do lokalizovan\u00e9 koncentrovan\u00e9 plastick\u00e9 deformace, a je to tak\u00e9 maxim\u00e1ln\u00ed \u00fanosnost kovu za statick\u00fdch tahov\u00fdch podm\u00ednek. Pevnost v tahu p\u0159edstavuje odolnost materi\u00e1lu v\u016f\u010di maxim\u00e1ln\u00ed rovnom\u011brn\u00e9 plastick\u00e9 deformaci. P\u0159ed vystaven\u00edm maxim\u00e1ln\u00edmu tahov\u00e9mu nap\u011bt\u00ed je deformace tahov\u00e9ho vzorku rovnom\u011brn\u00e1 a konzistentn\u00ed, ale po p\u0159ekro\u010den\u00ed t\u00e9to meze za\u010d\u00edn\u00e1 kov vykazovat z\u00fa\u017een\u00ed, co\u017e vede ke koncentrovan\u00e9 deformaci. U k\u0159ehk\u00fdch materi\u00e1l\u016f bez (nebo s velmi malou) rovnom\u011brnou plastickou deformac\u00ed odr\u00e1\u017e\u00ed lomovou odolnost materi\u00e1lu. Lze ji tak\u00e9 ch\u00e1pat jako: kdy\u017e ocel do ur\u010dit\u00e9 m\u00edry polehne, jej\u00ed odolnost v\u016f\u010di deformaci se op\u011bt zv\u00fd\u0161\u00ed v d\u016fsledku p\u0159eskupen\u00ed vnit\u0159n\u00edch zrn. V tomto okam\u017eiku se sice deformace vyv\u00edj\u00ed rychle, ale m\u016f\u017ee se zvy\u0161uj\u00edc\u00edm se nap\u011bt\u00edm r\u016fst pouze do maxim\u00e1ln\u00edho nap\u011bt\u00ed. Pot\u00e9 se schopnost oceli odol\u00e1vat deformaci v\u00fdrazn\u011b sn\u00ed\u017eila a v nejslab\u0161\u00edm m\u00edst\u011b do\u0161lo k v\u00fdznamn\u00e9 plastick\u00e9 deformaci. V tomto bod\u011b se pr\u016f\u0159ez vzorku rychle zmen\u0161il, co\u017e vedlo ke z\u00fa\u017een\u00ed a lomu. Maxim\u00e1ln\u00ed hodnota nap\u011bt\u00ed oceli p\u0159ed tahov\u00fdm lomem se naz\u00fdv\u00e1 mez pevnosti v tahu nebo pevnost v tahu.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2629393 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"2629393\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/www.shen-chong.com\/cs\/contact\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Klikn\u011bte zde<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c0b3aff elementor-widget elementor-widget-spacer\" data-id=\"c0b3aff\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-15a7abd elementor-widget elementor-widget-heading\" data-id=\"15a7abd\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Tlou\u0161\u0165ka plechu<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c28700f elementor-widget elementor-widget-text-editor\" data-id=\"c28700f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Za t\u0159et\u00ed, jak u\u017eivatel\u00e9 v\u011bd\u00ed, tlou\u0161\u0165ka plechu je jedn\u00edm z nejd\u016fle\u017eit\u011bj\u0161\u00edch faktor\u016f, kter\u00e9 ur\u010duj\u00ed oh\u00fdbac\u00ed s\u00edlu. Tlou\u0161\u0165ka plechu je jedn\u00edm z nejd\u016fle\u017eit\u011bj\u0161\u00edch faktor\u016f ovliv\u0148uj\u00edc\u00edch v\u00fdpo\u010det hmotnosti ohra\u0148ovac\u00edho lisu. Obecn\u011b plat\u00ed, \u017ee za stejn\u00fdch podm\u00ednek zpracov\u00e1n\u00ed plat\u00ed, \u017ee \u010d\u00edm siln\u011bj\u0161\u00ed je oh\u00fdban\u00fd plech, t\u00edm v\u011bt\u0161\u00ed je jednotkov\u00fd tlak pot\u0159ebn\u00fd k jeho deformaci, a proto je zapot\u0159eb\u00ed v\u011bt\u0161\u00ed hmotnost ohra\u0148ovac\u00edho lisu.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-822f592 elementor-widget elementor-widget-heading\" data-id=\"822f592\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">D\u00e9lka plechu<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c7b3f0 elementor-widget elementor-widget-text-editor\" data-id=\"0c7b3f0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Za \u010dtvrt\u00e9, d\u00e9lka plechu je dal\u0161\u00edm kl\u00ed\u010dov\u00fdm bodem v kalkula\u010dce hmotnostn\u00ed hmotnosti ohra\u0148ovac\u00edho lisu. \u010c\u00edm del\u0161\u00ed je plech, t\u00edm v\u011bt\u0161\u00ed ohybovou s\u00edlu ohra\u0148ovac\u00ed lis pot\u0159ebuje.<\/p><p>N\u011bkdy mus\u00ed obsluha v\u011bnovat pozornost oh\u00fdbac\u00ed s\u00edle jednotky. Nap\u0159\u00edklad u\u017eivatel obvykle oh\u00fdb\u00e1 plech z m\u011bkk\u00e9 oceli o tlou\u0161\u0165ce 3 mm a d\u00e9lce 3000 mm; z\u00e1rove\u0148 ale pot\u0159ebuje oh\u00fdbat i plech z m\u011bkk\u00e9 oceli o tlou\u0161\u0165ce 8 mm a d\u00e9lce 1000 mm. V tomto p\u0159\u00edpad\u011b je jednotkov\u00e1 hmotnost plechu o tlou\u0161\u0165ce 3 mm 3*3*650\/(3*6)=325 kN, ale hmotnost plechu o tlou\u0161\u0165ce 8 mm je 8*8*650\/(8*8)=650 kN. Pokud chce u\u017eivatel pou\u017e\u00edt stejn\u00fd ohra\u0148ovac\u00ed lis k oh\u00fdb\u00e1n\u00ed t\u011bchto dvou druh\u016f plech\u016f, m\u011bla by hmotnost ohra\u0148ovac\u00edho lisu b\u00fdt 200 a\u017e 3200 mm.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f7dd66 elementor-widget elementor-widget-spacer\" data-id=\"5f7dd66\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cd3b1bc elementor-widget elementor-widget-heading\" data-id=\"cd3b1bc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">V\u00fdpo\u010det hmotnosti n\u00e1stroje pro lemov\u00e1n\u00ed pro n\u00edzkouhl\u00edkovou ocel<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9057d74 elementor-widget elementor-widget-text-editor\" data-id=\"9057d74\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Za p\u00e1t\u00e9, pou\u017eit\u00ed lemovac\u00edho n\u00e1stroje \u010di nikoli ovliv\u0148uje v\u00fdpo\u010det hmotnostn\u00ed hmotnosti. Ohra\u0148ovac\u00ed lisy s lemovac\u00edm n\u00e1strojem vy\u017eaduj\u00ed v\u011bt\u0161\u00ed oh\u00fdbac\u00ed s\u00edlu a u\u017eivatel\u00e9 nemohou jednodu\u0161e pou\u017e\u00edt vzorec. N\u00e1sleduje v\u00fdpo\u010detn\u00ed tabulka pro va\u0161i informaci.<\/p><p>M\u011bkk\u00e1 ocel o tlou\u0161\u0165ce 1 mm a d\u00e9lce 1000 mm: pokud je pot\u0159eba oh\u00fdbat pomoc\u00ed n\u00e1stroje pro oh\u00fdb\u00e1n\u00ed ve tvaru kapky, je pot\u0159eba nosnost 15 tun na metr. Pokud je pot\u0159eba oh\u00fdbat pomoc\u00ed n\u00e1stroje pro pln\u00fd lemovac\u00ed lis, je t\u0159eba zvolit ohra\u0148ovac\u00ed lis o s\u00edle 40 tun\/1000 mm.<\/p><table><tbody><tr><td width=\"153\"><p>Tlou\u0161\u0165ka (mm)<\/p><\/td><td width=\"177\"><p>Slza (tuny\/m\u00b2)<\/p><\/td><td width=\"218\"><p>Pln\u00e9 lemov\u00e1n\u00ed (tuny\/m)<\/p><\/td><\/tr><tr><td><p>0.6<\/p><\/td><td><p>9<\/p><\/td><td><p>23<\/p><\/td><\/tr><tr><td><p>1<\/p><\/td><td><p>15<\/p><\/td><td><p>40<\/p><\/td><\/tr><tr><td><p>1.5<\/p><\/td><td><p>22<\/p><\/td><td><p>63<\/p><\/td><\/tr><tr><td><p>2<\/p><\/td><td><p>30<\/p><\/td><td><p>80<\/p><\/td><\/tr><tr><td><p>2.5<\/p><\/td><td><p>55<\/p><\/td><td><p>90<\/p><\/td><\/tr><tr><td><p>3<\/p><\/td><td><p>77<\/p><\/td><td><p>100<\/p><\/td><\/tr><\/tbody><\/table><p>\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b0dfb07 elementor-widget elementor-widget-heading\" data-id=\"b0dfb07\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Oh\u00fdb\u00e1n\u00ed ty\u010d\u00ed pomoc\u00ed ohra\u0148ovac\u00edho lisu pro vysok\u00e9 zat\u00ed\u017een\u00ed<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-411753f elementor-widget elementor-widget-text-editor\" data-id=\"411753f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>V neposledn\u00ed \u0159ad\u011b je t\u0159eba p\u0159i oh\u00fdb\u00e1n\u00ed ty\u010d\u00ed n\u011bkdy zohlednit v\u00edce faktor\u016f, kter\u00e9 nejsou zahrnuty ve vzorci. Obvykle se u\u017eivatel\u00e9 rozhodnou pou\u017e\u00edt <a href=\"https:\/\/www.shen-chong.com\/cs\/tandem-press-brake-machine\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\"><strong><b>tandemov\u00fd ohra\u0148ovac\u00ed lis<\/b><\/strong><\/span><\/a>\u00a0Pro oh\u00fdb\u00e1n\u00ed plechu mohou pou\u017e\u00edt v\u00fd\u0161e uveden\u00fd vzorec k v\u00fdpo\u010dtu nosnosti ohra\u0148ovac\u00edho lisu. Pokud v\u0161ak oh\u00fdbaj\u00ed polygon\u00e1ln\u00ed ty\u010de s mal\u00fdm po\u010dtem \u010depel\u00ed a oh\u00fdbaj\u00ed kruhov\u00e9 obloukov\u00e9 ty\u010de, m\u011bla by b\u00fdt nosnost ohra\u0148ovac\u00edho lisu mnohem v\u011bt\u0161\u00ed ne\u017e v\u00fdsledky v\u00fdpo\u010dtu podle vzorce. Kontaktujte pros\u00edm odborn\u00edka. <a href=\"https:\/\/www.shen-chong.com\/cs\/cnc-press-brake-machine\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\"><strong><b>V\u00fdrobce CNC ohra\u0148ovac\u00edch lis\u016f<\/b><\/strong><\/span><\/a>\u00a0z\u00edskat vhodn\u00e9 podrobnosti o stroji.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-977b2e0 elementor-widget elementor-widget-spacer\" data-id=\"977b2e0\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cfea471 elementor-widget elementor-widget-heading\" data-id=\"cfea471\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Povolen\u00e1 minim\u00e1ln\u00ed d\u00e9lka ohybov\u00e9 hrany<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-579ea69 elementor-widget elementor-widget-text-editor\" data-id=\"579ea69\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Krom\u011b v\u0161ech v\u00fd\u0161e uveden\u00fdch faktor\u016f je b\u011bhem procesu ohybov\u00e9 deformace materi\u00e1l na vnit\u0159n\u00ed stran\u011b ohnut\u00e9ho rohu stla\u010dov\u00e1n a materi\u00e1l na vn\u011bj\u0161\u00ed stran\u011b se natahuje, zat\u00edmco materi\u00e1l, kter\u00fd si zachov\u00e1v\u00e1 svou p\u016fvodn\u00ed d\u00e9lku, je rozlo\u017een v kruhov\u00e9m oblouku. Poloha tohoto oblouku je neutr\u00e1ln\u00ed linie materi\u00e1lov\u00e9 mechaniky plechu, co\u017e je linie pou\u017eit\u00e1 k v\u00fdpo\u010dtu rozlo\u017een\u00e9 d\u00e9lky. Nesm\u00ed p\u0159ekro\u010dit 1\/2 geometrick\u00e9ho tvaru tlou\u0161\u0165ky plechu.<\/p><p>\u00a0<\/p><table><tbody><tr><td width=\"131\"><p>\u00dahel (\u00b0)<\/p><\/td><td width=\"96\"><p>165<\/p><\/td><td width=\"96\"><p>130<\/p><\/td><td width=\"96\"><p>120<\/p><\/td><td width=\"96\"><p>90<\/p><\/td><td width=\"96\"><p>60<\/p><\/td><td width=\"96\"><p>45<\/p><\/td><td width=\"96\"><p>30<\/p><\/td><\/tr><tr><td><p>Velikost (b)<\/p><\/td><td><p>0,51 V<\/p><\/td><td><p>0,55 V<\/p><\/td><td><p>0,58 V<\/p><\/td><td><p>0,71 V<\/p><\/td><td><p>PROTI<\/p><\/td><td><p>1,31 V<\/p><\/td><td><p>1,94 V<\/p><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dcc4f0e elementor-widget elementor-widget-spacer\" data-id=\"dcc4f0e\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b9d8bd6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b9d8bd6\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-862caa8\" data-id=\"862caa8\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2f88e11 elementor-widget elementor-widget-heading\" data-id=\"2f88e11\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Nadhodnocen\u00ed ton\u00e1\u017ee<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-218b58b elementor-widget elementor-widget-text-editor\" data-id=\"218b58b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>U\u017eivatel\u00e9 si n\u011bkdy mysl\u00ed, \u017ee kdy\u017e si koup\u00ed ohra\u0148ovac\u00ed lis s velkou nosnost\u00ed, mohou oh\u00fdbat v\u0161echny mal\u00e9 obrobky, kter\u00e9 spl\u0148uj\u00ed po\u017eadavky na nosnost. Jako profesion\u00e1ln\u00ed v\u00fdrobce ohra\u0148ovac\u00edch lis\u016f mus\u00edme \u0159\u00edci, \u017ee se jedn\u00e1 o \u010dast\u00fd omyl. Pou\u017eit\u00edm kalkula\u010dky nosnosti ohra\u0148ovac\u00edho lisu bez konzultace s v\u00fdrobcem u\u017eivatel\u00e9 \u010dasto nadhodnocuj\u00ed nebo podhodnocuj\u00ed nosnost.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-90b41e5 elementor-widget elementor-widget-heading\" data-id=\"90b41e5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Rizika spojen\u00e1 s pou\u017e\u00edv\u00e1n\u00edm p\u0159\u00edli\u0161 velk\u00e9 ton\u00e1\u017ee<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-12b35dd elementor-widget elementor-widget-spacer\" data-id=\"12b35dd\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-11df7ed elementor-widget elementor-widget-heading\" data-id=\"11df7ed\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Negativn\u00ed \u00fa\u010dinky oh\u00fdb\u00e1n\u00ed u mal\u00fdch obrobk\u016f<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-465f898 elementor-widget elementor-widget-text-editor\" data-id=\"465f898\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Kdy\u017e u\u017eivatel oh\u00fdb\u00e1 mal\u00e9 obrobky pomoc\u00ed velkoton\u00e1\u017en\u00edho ohra\u0148ovac\u00edho lisu, zjist\u00ed, \u017ee n\u00e1stroje ohra\u0148ovac\u00edho lisu ur\u010den\u00e9 pro velk\u00e9 ohra\u0148ovac\u00ed lisy nejsou vhodn\u00e9 pro oh\u00fdb\u00e1n\u00ed mal\u00fdch obrobk\u016f. Velk\u00e9 ohra\u0148ovac\u00ed lisy obvykle pou\u017e\u00edvaj\u00ed spodn\u00ed matricu ohra\u0148ovac\u00edho lisu s v\u00edcen\u00e1sobn\u00fdm V z\u00e1\u0159ezem ve tvaru V, kter\u00e1 je pro tenk\u00e9 plechy p\u0159\u00edli\u0161 velk\u00e1. I kdy\u017e u\u017eivatel\u00e9 vym\u011b\u0148uj\u00ed malou spodn\u00ed matricu za tenk\u00e9 plechy, velkoton\u00e1\u017en\u00ed ohra\u0148ovac\u00ed lis se \u0161irok\u00fdm pracovn\u00edm stolem n\u011bkdy br\u00e1n\u00ed oh\u00fdbac\u00edm \u00fa\u010dink\u016fm.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bece65d elementor-widget elementor-widget-heading\" data-id=\"bece65d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Zbyte\u010dn\u00e1 spot\u0159eba energie<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-50b2d85 elementor-widget elementor-widget-text-editor\" data-id=\"50b2d85\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Pou\u017eit\u00ed ohra\u0148ovac\u00edho lisu s v\u011bt\u0161\u00edm objemem znamen\u00e1 pot\u0159ebu v\u011bt\u0161\u00edho mno\u017estv\u00ed elektrick\u00e9 energie. Pokud u\u017eivatel\u00e9 neust\u00e1le pou\u017e\u00edvaj\u00ed velk\u00fd ohra\u0148ovac\u00ed lis k oh\u00fdb\u00e1n\u00ed mal\u00fdch obrobk\u016f, utr\u00e1cej\u00ed pen\u00edze za zbyte\u010dnou spot\u0159ebu energie.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4df91a5 elementor-widget elementor-widget-spacer\" data-id=\"4df91a5\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4c5baa elementor-widget elementor-widget-heading\" data-id=\"a4c5baa\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Tipy, jak se vyhnout nadhodnocov\u00e1n\u00ed<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dce7177 elementor-widget elementor-widget-text-editor\" data-id=\"dce7177\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li>Pro v\u00fdb\u011br nejvhodn\u011bj\u0161\u00edho modelu stroje kontaktujte v\u00fdrobce ohra\u0148ovac\u00edch lis\u016f.<\/li><li>Pro oh\u00fdb\u00e1n\u00ed mal\u00fdch obrobk\u016f pou\u017e\u00edvejte mal\u00fd ohra\u0148ovac\u00ed lis a pro velk\u00e9 obrobky pou\u017e\u00edvejte velk\u00fd ohra\u0148ovac\u00ed lis.<\/li><li>Vyberte si koupit <a href=\"https:\/\/www.shen-chong.com\/cs\/servo-hybrid-press-brake-machine\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\"><strong><b>hybridn\u00ed servo ohra\u0148ovac\u00ed lis <\/b><\/strong><\/span><\/a>aby se sn\u00ed\u017eila spot\u0159eba energie.<\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f811901 elementor-widget elementor-widget-spacer\" data-id=\"f811901\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f4a7d40 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f4a7d40\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2940b6b\" data-id=\"2940b6b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3381775 elementor-widget elementor-widget-heading\" data-id=\"3381775\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Podcen\u011bn\u00ed ton\u00e1\u017ee<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2612742 elementor-widget elementor-widget-text-editor\" data-id=\"2612742\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Podhodnocen\u00ed nosnosti je dal\u0161\u00edm \u010dast\u00fdm probl\u00e9mem p\u0159i v\u00fdb\u011bru ohra\u0148ovac\u00edho lisu. N\u011bkte\u0159\u00ed u\u017eivatel\u00e9 pou\u017e\u00edvaj\u00ed online kalkula\u010dku nosnosti ohra\u0148ovac\u00edho lisu k vlastn\u00edmu v\u00fdpo\u010dtu nosnosti, ale na tunu m\u00e1 vliv mnoho r\u016fzn\u00fdch faktor\u016f, jak jsme uvedli v\u00fd\u0161e. N\u00ed\u017ee si pov\u00edme o riziku podhodnocen\u00ed nosnosti ohra\u0148ovac\u00edho lisu.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d6688ca elementor-widget elementor-widget-heading\" data-id=\"d6688ca\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Potenci\u00e1ln\u00ed probl\u00e9my s pou\u017e\u00edv\u00e1n\u00edm nedostate\u010dn\u00e9 ton\u00e1\u017ee<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8493dc8 elementor-widget elementor-widget-text-editor\" data-id=\"8493dc8\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Pou\u017eit\u00ed nedostate\u010dn\u00e9 kapacity ohra\u0148ovac\u00edho lisu k oh\u00fdb\u00e1n\u00ed plech\u016f s sebou nese v\u011bt\u0161\u00ed riziko ne\u017e pou\u017eit\u00ed nadhodnocen\u00e9 kapacity ohra\u0148ovac\u00edho lisu k oh\u00fdb\u00e1n\u00ed tenk\u00fdch plech\u016f. N\u00ed\u017ee jsou uvedena dv\u011b hlavn\u00ed rizika.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-253617e elementor-widget elementor-widget-heading\" data-id=\"253617e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Nelze se ohnout<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c2f4f58 elementor-widget elementor-widget-text-editor\" data-id=\"c2f4f58\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Pokud si u\u017eivatel\u00e9 koup\u00ed ohra\u0148ovac\u00ed lis s nedostate\u010dnou nosnost\u00ed pro oh\u00fdb\u00e1n\u00ed plechu, kter\u00fd p\u0159ekra\u010duje jeho ohybovou kapacitu, nejintuitivn\u011bj\u0161\u00edm probl\u00e9mem je, \u017ee stroj nedok\u00e1\u017ee ohnout po\u017eadovan\u00fd \u00fahel. Nap\u0159\u00edklad pokud pou\u017eijete ohra\u0148ovac\u00ed lis s nedostate\u010dnou nosnost\u00ed pro oh\u00fdb\u00e1n\u00ed po\u017eadovan\u00fdch 90\u00b0, bez ohledu na to, jak u\u017eivatel nastav\u00ed CNC ovlada\u010d, v\u00fdsledek oh\u00fdb\u00e1n\u00ed m\u016f\u017ee uk\u00e1zat, \u017ee stroj dok\u00e1\u017ee ohnout pouze 120\u00b0.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97f9722 elementor-widget elementor-widget-heading\" data-id=\"97f9722\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Zlomen\u00fd<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ea8ac93 elementor-widget elementor-widget-text-editor\" data-id=\"ea8ac93\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Dal\u0161\u00edm probl\u00e9mem p\u0159i pou\u017e\u00edv\u00e1n\u00ed ohra\u0148ovac\u00edho lisu s nedostate\u010dnou nosnost\u00ed je, \u017ee se n\u00e1stroje ohra\u0148ovac\u00edho lisu nebo stroj mohou b\u011bhem procesu oh\u00fdb\u00e1n\u00ed zlomit.<\/p><p>Pou\u017eijte v\u00fd\u0161e uveden\u00fd p\u0159\u00edklad: u\u017eivatel obvykle oh\u00fdb\u00e1 plech z m\u011bkk\u00e9 oceli o tlou\u0161\u0165ce 3 mm a d\u00e9lce 3000 mm; z\u00e1rove\u0148 ale pot\u0159ebuje oh\u00fdbat i plech z m\u011bkk\u00e9 oceli o tlou\u0161\u0165ce 8 mm a d\u00e9lce 1000 mm. Pokud si u\u017eivatel vybere spr\u00e1vn\u00fd model stroje, m\u011bl by si koupit 200T3200MM. Pokud si v\u0161ak koup\u00ed pouze 100T3200MM na z\u00e1klad\u011b oh\u00fdb\u00e1n\u00ed plechu o tlou\u0161\u0165ce 3 mm a d\u00e9lce 3000 mm, p\u0159i oh\u00fdb\u00e1n\u00ed plechu o tlou\u0161\u0165ce 8 mm a d\u00e9lce 1000 mm se ohra\u0148ovac\u00ed lis m\u016f\u017ee zlomit nebo nelze dos\u00e1hnout po\u017eadovan\u00e9ho \u00fahlu.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-24c08fd elementor-widget elementor-widget-spacer\" data-id=\"24c08fd\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6c6b02c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6c6b02c\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-46cd24f\" data-id=\"46cd24f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-553ebf6 elementor-widget elementor-widget-heading\" data-id=\"553ebf6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Z\u00e1v\u011br<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3232565 elementor-widget elementor-widget-text-editor\" data-id=\"3232565\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>V tomto \u010dl\u00e1nku nejprve p\u0159edstav\u00edme vzorec b\u011b\u017en\u011b pou\u017e\u00edvan\u00fd v kalkula\u010dce hmotnosti ohra\u0148ovac\u00edho lisu a faktory ovliv\u0148uj\u00edc\u00ed v\u00fdpo\u010det, mezi kter\u00e9 pat\u0159\u00ed pevnost v tahu materi\u00e1lu, V-otvor spodn\u00ed matrice ohra\u0148ovac\u00edho lisu, tlou\u0161\u0165ka plechu, d\u00e9lka plechu, lemovac\u00ed n\u00e1stroje a ohyb ty\u010d\u00ed. Krom\u011b toho tak\u00e9 probereme rizika nadhodnocen\u00ed a podhodnocen\u00ed hmotnosti ohra\u0148ovac\u00edho lisu a jak se t\u011bmto potenci\u00e1ln\u00edm chyb\u00e1m vyhnout. Doufejme, \u017ee se z tohoto \u010dl\u00e1nku lid\u00e9 dozv\u011bd\u00ed v\u00edce o v\u00fdpo\u010dtu hmotnosti ohra\u0148ovac\u00edho lisu.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fa88810 elementor-widget elementor-widget-spacer\" data-id=\"fa88810\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c309ae4 elementor-widget elementor-widget-text-editor\" data-id=\"c309ae4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>Souvisej\u00edc\u00ed \u010dl\u00e1nky:<\/strong><\/p><p><a href=\"https:\/\/www.shen-chong.com\/cs\/what-is-press-brake\/\" target=\"_blank\" rel=\"noopener\">Co je to ohra\u0148ovac\u00ed lis?<\/a><\/p><p><strong>Zdroje:<\/strong><\/p><p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Ultimate_tensile_strength\" target=\"_blank\" rel=\"noopener\">Mezn\u00ed pevnost v tahu<\/a><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Kalkula\u010dka hmotnosti ohra\u0148ovac\u00edch lis\u016f V posledn\u00edch letech se ohra\u0148ovac\u00ed lisy \u0161iroce pou\u017e\u00edvaj\u00ed v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch a rozsah zpracov\u00e1n\u00ed ohra\u0148ovac\u00edch lis\u016f se tak\u00e9 den ode dne roz\u0161i\u0159uje. Neexistuje v\u0161ak systematick\u00e1 diskuse o v\u00fdpo\u010dtu oh\u00fdbac\u00ed s\u00edly. V tomto \u010dl\u00e1nku prozkoum\u00e1me p\u016fvodn\u00ed vzorec pro v\u00fdpo\u010det oh\u00fdbac\u00ed s\u00edly, nau\u010d\u00edme se [\u2026]<\/p>","protected":false},"author":1,"featured_media":2557,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2556","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-events"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Press Brake Tonnage Calculator For Users - SC Machinery<\/title>\n<meta name=\"description\" content=\"Explore the bending force calculation, learn the factors affect press brake tonnage calculator and avoid the tonnage calculation mistakes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.shen-chong.com\/cs\/press-brake-tonnage-calculator-for-users\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Press Brake Tonnage Calculator For Users - 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