{"id":2772,"date":"2024-05-17T01:16:06","date_gmt":"2024-05-17T01:16:06","guid":{"rendered":"https:\/\/www.shen-chong.com\/?p=2772"},"modified":"2024-05-15T02:06:02","modified_gmt":"2024-05-15T02:06:02","slug":"what-are-the-k-factor-bend-allowance-and-bend-deduction","status":"publish","type":"post","link":"https:\/\/www.shen-chong.com\/lt\/what-are-the-k-factor-bend-allowance-and-bend-deduction\/","title":{"rendered":"Kas yra K koeficientas, lenkimo tolerancija ir lenkimo atskaita?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2772\" class=\"elementor elementor-2772\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-81d1703 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"81d1703\" 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 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.elementor-toc__list-item{counter-increment:item}ol.elementor-toc__list-wrapper .elementor-toc__list-item-text-wrapper:before{content:counters(item,\".\") \". \"}<\/style>\t\t<div class=\"elementor-toc__header\">\n\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTurinys\t\t\t<\/h4>\n\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__6ed7cdc\" aria-expanded=\"true\" aria-label=\"Atidaryti turin\u012f\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z\"><\/path><\/svg><\/div>\n\t\t\t\t<div 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xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M500 975V858C696 858 858 696 858 500S696 142 500 142 142 304 142 500H25C25 237 238 25 500 25S975 237 975 500 763 975 500 975Z\"><\/path><\/svg>\t\t\t<\/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-a6c9058 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a6c9058\" 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-4160b3a\" data-id=\"4160b3a\" 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-d34b492 elementor-widget elementor-widget-heading\" data-id=\"d34b492\" 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\">\u012evadas<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8394fb5 elementor-widget elementor-widget-text-editor\" data-id=\"8394fb5\" 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>Tinkamo K koeficiento, lenkimo tolerancijos ir lenkimo i\u0161skaitos apskai\u010diavimas yra labai svarb\u016bs norint gauti geros kokyb\u0117s galutin\u0119 detal\u0119. <a href=\"https:\/\/www.shen-chong.com\/lt\/press-brake\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\"><strong><b>hidraulinis<\/b><\/strong><strong><b>\u00a0presavimo stabdys<\/b><\/strong><\/span><\/a>Presavimo stakli\u0173 \u017einios ir technika yra j\u0173 pagrindai, kurie yra nepaprastai svarb\u016bs norint juos naudoti gamyboje.<\/p><p>Apskai\u010diuoti plok\u0161\u010dio ra\u0161to ilg\u012f i\u0161 3D detal\u0117s i\u0161 tikr\u0173j\u0173 n\u0117ra taip sunku. Nors galite rasti kelet\u0105 skirting\u0173 formuli\u0173, kurios teigia apskai\u010diuojan\u010dios lenkimo tolerancij\u0105, jos paprastai yra ta pati formul\u0117, tik supaprastinta u\u017epildant kamp\u0105 arba K koeficient\u0105. \u0160iame straipsnyje rasite \u0161i\u0105 informacij\u0105, \u012fskaitant K koeficient\u0105, lenkimo tolerancij\u0105 ir lenkimo i\u0161skai\u010diavim\u0105.<\/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-7f4fda3 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"7f4fda3\" data-element_type=\"widget\" data-widget_type=\"divider.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-divider{--divider-border-style:none;--divider-border-width:1px;--divider-color:#0c0d0e;--divider-icon-size:20px;--divider-element-spacing:10px;--divider-pattern-height:24px;--divider-pattern-size:20px;--divider-pattern-url:none;--divider-pattern-repeat:repeat-x}.elementor-widget-divider .elementor-divider{display:flex}.elementor-widget-divider .elementor-divider__text{font-size:15px;line-height:1;max-width:95%}.elementor-widget-divider .elementor-divider__element{margin:0 var(--divider-element-spacing);flex-shrink:0}.elementor-widget-divider .elementor-icon{font-size:var(--divider-icon-size)}.elementor-widget-divider .elementor-divider-separator{display:flex;margin:0;direction:ltr}.elementor-widget-divider--view-line_icon .elementor-divider-separator,.elementor-widget-divider--view-line_text .elementor-divider-separator{align-items:center}.elementor-widget-divider--view-line_icon .elementor-divider-separator:after,.elementor-widget-divider--view-line_icon 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var(--divider-color)}.elementor-widget-divider--separator-type-pattern{--divider-border-style:none}.elementor-widget-divider--separator-type-pattern.elementor-widget-divider--view-line .elementor-divider-separator,.elementor-widget-divider--separator-type-pattern:not(.elementor-widget-divider--view-line) .elementor-divider-separator:after,.elementor-widget-divider--separator-type-pattern:not(.elementor-widget-divider--view-line) .elementor-divider-separator:before,.elementor-widget-divider--separator-type-pattern:not([class*=elementor-widget-divider--view]) .elementor-divider-separator{width:100%;min-height:var(--divider-pattern-height);-webkit-mask-size:var(--divider-pattern-size) 100%;mask-size:var(--divider-pattern-size) 100%;-webkit-mask-repeat:var(--divider-pattern-repeat);mask-repeat:var(--divider-pattern-repeat);background-color:var(--divider-color);-webkit-mask-image:var(--divider-pattern-url);mask-image:var(--divider-pattern-url)}.elementor-widget-divider--no-spacing{--divider-pattern-size:auto}.elementor-widget-divider--bg-round{--divider-pattern-repeat:round}.rtl .elementor-widget-divider .elementor-divider__text{direction:rtl}.e-con-inner>.elementor-widget-divider,.e-con>.elementor-widget-divider{width:var(--container-widget-width,100%);--flex-grow:var(--container-widget-flex-grow)}<\/style>\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\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-750fe14 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"750fe14\" 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-750c460\" data-id=\"750c460\" 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-90033e8 elementor-widget elementor-widget-heading\" data-id=\"90033e8\" 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\">Kas yra lenkimo i\u0161moka?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-87c3f12 elementor-widget elementor-widget-text-editor\" data-id=\"87c3f12\" 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>Metalus i\u0161 ties\u0173 galima lenkti. Gaminant lak\u0161tin\u012f metal\u0105, metalas turi b\u016bti lenkiamas ne tik tam, kad \u012fgaut\u0173 tam tikr\u0105 form\u0105, bet ir tam, kad b\u016bt\u0173 laikomasi saugos taisykli\u0173, kai metalas yra veikiamas sm\u016bgio, kad jis sulinkt\u0173, o ne l\u016b\u017et\u0173. Nepriklausomai nuo metalo r\u016b\u0161ies, formos ir storio, kiekvienas metalo gabalas turi tam tikr\u0105 lenkimo tolerancij\u0105.<\/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-b9e7f19 elementor-widget elementor-widget-heading\" data-id=\"b9e7f19\" 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\">Lenkimo i\u0161mokos apibr\u0117\u017eimas<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-19ca6f7 elementor-widget elementor-widget-text-editor\" data-id=\"19ca6f7\" 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>Lenkimo tolerancija (BA) yra lenkimo lanko ilgis, i\u0161matuotas i\u0161ilgai metalin\u0117s plok\u0161t\u0117s neutraliosios a\u0161ies, nes neutraliosios a\u0161ies ilgis po lenkimo nekinta.<\/p><p>Apskai\u010diavus lenkimo tolerancij\u0105, j\u0105 reikia prid\u0117ti prie plok\u0161\u010dio ilgio, kad b\u016bt\u0173 nustatytas reikiamas lak\u0161tinio metalo ilgis, reikalingas norimam ruo\u0161iniui suformuoti.<\/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-08c7e4b elementor-widget elementor-widget-heading\" data-id=\"08c7e4b\" 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\">Kaip apskai\u010diuoti lenkimo i\u0161mok\u0105<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f807f41 elementor-widget elementor-widget-text-editor\" data-id=\"f807f41\" 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>Kaip parodyta paveiksl\u0117lyje apa\u010dioje:<\/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-4921555 elementor-widget elementor-widget-image\" data-id=\"4921555\" 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=\"650\" height=\"420\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance.jpg\" class=\"attachment-full size-full wp-image-2775\" alt=\"lenkimo tolerancija\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance-300x194.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance-18x12.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-900cc77 elementor-widget elementor-widget-text-editor\" data-id=\"900cc77\" 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>Plok\u0161\u010diojo sluoksnio ilgiui apskai\u010diuoti naudojama \u0161i formul\u0117:<\/p><p style=\"text-align: center;\"><span style=\"color: #0000ff;\"><strong><b>Lak\u0161tinio metalo plok\u0161\u010dio ilgis<\/b><\/strong><strong><b>\u00a0<\/b><\/strong><strong><b>=<\/b><\/strong><strong><b>\u00a0<\/b><\/strong><strong><b>1 kojos ilgis + BA + 2 kojos ilgis<\/b><\/strong><\/span><\/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-4f88e5f elementor-widget elementor-widget-heading\" data-id=\"4f88e5f\" 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\">Lenkimo tolerancijos skai\u010diavimo formul\u0117<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a9a157 elementor-widget elementor-widget-image\" data-id=\"2a9a157\" 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=\"265\" height=\"76\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance-formula.jpg\" class=\"attachment-full size-full wp-image-2776\" alt=\"lenkimo tolerancijos formul\u0117\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance-formula.jpg 265w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance-formula-18x5.jpg 18w\" sizes=\"(max-width: 265px) 100vw, 265px\" \/>\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-610cbe6 elementor-widget elementor-widget-text-editor\" data-id=\"610cbe6\" 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>A \u2013 lenkimo kampas<\/p><p>R \u2013 vidinis spindulys<\/p><p>K \u2013 K koeficientas<\/p><p>T \u2013 med\u017eiagos storis<\/p><p>Prad\u0117kime nuo paprasto L formos laikiklio. Paveiksl\u0117lyje parodyta, kad laikiklio kojel\u0117s yra 2 ir 3 coli\u0173 ilgio. Med\u017eiagos storis yra 0,125 colio, vidinis spindulys \u2013 0,250 colio, o lenkimo kampas \u2013 90 laipsni\u0173. Plok\u0161\u010diasis ilgis yra abiej\u0173 flan\u0161\u0173 plok\u0161\u010diosios dalies ir lenkimo srities lanko ilgio suma. Bet ar tai skai\u010diuoti med\u017eiagos vidin\u0117je, ar i\u0161orin\u0117je pus\u0117je? Nei vienoje, nei kitoje! \u010cia prasideda K koeficientas. K koeficientas yra med\u017eiagos storio procentin\u0117 dalis, kai med\u017eiaga n\u0117ra tempiama ar suspaud\u017eiama, pavyzd\u017eiui, neutralioji a\u0161is. \u0160iam paprastam L formos laikikliui naudosiu 0,42 K koeficient\u0105.<\/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-c1d3528 elementor-widget elementor-widget-image\" data-id=\"c1d3528\" 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=\"196\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance-calculation-case.jpg\" class=\"attachment-full size-full wp-image-2777\" alt=\"lenkimo tolerancijos skai\u010diavimo atvejis\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance-calculation-case.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance-calculation-case-300x90.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-allowance-calculation-case-18x5.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-1e0d09b elementor-widget elementor-widget-text-editor\" data-id=\"1e0d09b\" 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>Naudodami auk\u0161\u010diau pateikt\u0105 formul\u0119, gauname: lenkimo tolerancija = 90 * (\u03c0 \/ 180) * (0,250 + 0,42 * 0,125) = 0,475 colio.<\/p><p>Taigi plok\u0161\u010dio ra\u0161to ilgis yra 1,625 colio + 2,625 colio + 0,475 colio, tai yra 4,725 colio. Taigi, jei sud\u0117site vis\u0173 flan\u0161\u0173 plok\u0161\u010dius ilgius ir prid\u0117site po vien\u0105 lenkimo tolerancij\u0105 kiekvienai lenkimo sri\u010diai, gausite teising\u0105 detal\u0117s plok\u0161\u010di\u0105 ilg\u012f.<\/p><p>Ta\u010diau pa\u017ei\u016br\u0117kite \u012f br\u0117\u017ein\u012f. Tai n\u0117ra \u012fprastas lak\u0161tinio metalo detal\u0117s matmen\u0173 nustatymo b\u016bdas. Matmenys paprastai nurodomi iki flan\u0161\u0173 sankirtos arba liejimo linijos. Tai rei\u0161kia, kad kiekvienam lenkimo plotui turime atimti dvigub\u0105 med\u017eiagos stor\u012f ir lenkimo spindul\u012f (dar vadinam\u0105 nuolyd\u017eiu). Naudojant \u0161\u012f matmen\u0173 rinkin\u012f, b\u016bt\u0173 lengviau apskai\u010diuoti lenkimo kompensacijos vert\u0119. Lenkimo kompensacijos vert\u0117 leid\u017eia sud\u0117ti kiekvieno flan\u0161o ilg\u012f naudojant liejimo linijos matmenis ir tada prie bendros sumos prid\u0117ti vien\u0105 lenkimo kompensacij\u0105 kiekvienam lenkimo plotui. Tai yra -0,275, neigiamas skai\u010dius, o tai rei\u0161kia, kad \u0161i\u0105 sum\u0105 atimsite i\u0161 bendro flan\u0161\u0173 ilgi\u0173 skai\u010diaus, 5 coliai, ir gausite 4,725 colio.<\/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-b08bd5a elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"b08bd5a\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\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-8cf45d0 elementor-widget elementor-widget-heading\" data-id=\"8cf45d0\" 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\">Kas yra K faktorius?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c3f990 elementor-widget elementor-widget-text-editor\" data-id=\"0c3f990\" 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>K koeficientas yra med\u017eiagos storio procentin\u0117 dalis, kai lenkimo srityje med\u017eiaga netempiama ir nespaud\u017eiama.<\/p><p>Kuo kietesn\u0117 med\u017eiaga, tuo ma\u017eesnis suspaudimas lenkimo vidin\u0117je pus\u0117je. Tod\u0117l i\u0161or\u0117je yra didesnis tempimas, o neutrali a\u0161is pasislenka link lenkimo vidaus. Mink\u0161tesn\u0117s med\u017eiagos leid\u017eia didesn\u012f suspaudim\u0105 vidin\u0117je pus\u0117je, o neutrali a\u0161is lieka ar\u010diau med\u017eiagos storio centro.<\/p><p>Lenkimo spindulys turi pana\u0161\u0173 poveik\u012f. Kuo ma\u017eesnis lenkimo spindulys, tuo didesnis suspaudimo poreikis ir neutralioji a\u0161is pasislenka link lenkimo vidaus. Esant didesniam spinduliui, neutralioji a\u0161is i\u0161lieka arti med\u017eiagos storio centro.<\/p><p>Nor\u0117dami suprasti K faktori\u0173, pirmiausia turime suprasti neutrali\u0105j\u0105 a\u0161\u012f.<\/p><p>Kai lak\u0161tinis metalas lenkiamas, apatinis pavir\u0161ius suspaud\u017eiamas, o vir\u0161utinis \u2013 i\u0161tempiamas. Neutralioji a\u0161is yra metalo viduje, kur jis nei suspaud\u017eiamas, nei i\u0161siple\u010dia, tod\u0117l i\u0161laiko pastov\u0173 ilg\u012f.<\/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-e5f8cc3 elementor-widget elementor-widget-image\" data-id=\"e5f8cc3\" 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 loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"302\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/neutral-axis.jpg\" class=\"attachment-full size-full wp-image-2778\" alt=\"neutrali a\u0161is\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/neutral-axis.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/neutral-axis-300x139.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/neutral-axis-18x8.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-79d2536 elementor-widget elementor-widget-heading\" data-id=\"79d2536\" 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\">Neutrali a\u0161is<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ba0839 elementor-widget elementor-widget-text-editor\" data-id=\"6ba0839\" 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>Neutralioji a\u0161is nesikei\u010dia. Kuriant plok\u0161\u010dio ruo\u0161inio ilg\u012f, yra detal\u0117s ilgis, kuris nesikei\u010dia. \u0160is ilgis vadinamas neutralia a\u0161imi. Med\u017eiaga neutraliosios a\u0161ies vidin\u0117je pus\u0117je suspaus, o i\u0161or\u0117je \u2013 i\u0161sitemps. Priklausomai nuo med\u017eiagos storio, formavimo spindulio ir formavimo metod\u0173, detal\u0117s suspaudimo ir \u012ftempimo santykis keisis.<\/p><p>Detal\u0117, kuri yra sulenkta labai dideliu spinduliu, palyginti su storiu, labiau i\u0161sitemps i\u0161or\u0117je, o tai rei\u0161kia, kad neutrali a\u0161is bus ar\u010diau lenkimo vidin\u0117s pus\u0117s. Dalis, kuri yra sulenkta palaipsniui, tur\u0117s ma\u017eesn\u012f i\u0161orin\u012f i\u0161sitempim\u0105, o tai rei\u0161kia, kad neutrali a\u0161is bus ar\u010diau detal\u0117s centro.<\/p><p>Plok\u0161\u010dioje skardoje neutralioji a\u0161is yra tolygiai i\u0161d\u0117styta per pus\u0119 skardos storio, ta\u010diau lenkimo metu ji juda.<\/p><p>Neutralios a\u0161ies pad\u0117ties pokyt\u012f lemia \u012fvair\u016bs veiksniai, tokie kaip plok\u0161t\u0117s med\u017eiagos savyb\u0117s, storis, lenkimo kampas, vidinis spindulys ir lenkimo b\u016bdas.<\/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-e692e9c elementor-widget elementor-widget-heading\" data-id=\"e692e9c\" 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\">Kaip apskai\u010diuoti K faktorius<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-342f0db elementor-widget elementor-widget-text-editor\" data-id=\"342f0db\" 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>Matemati\u0161kai K koeficientas yra neutraliosios a\u0161ies pad\u0117ties (t) ir plok\u0161t\u0117s storio (T) santykis.<\/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-1d64a0f elementor-widget elementor-widget-heading\" data-id=\"1d64a0f\" 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\">K faktori\u0173 formul\u0117<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4a2f04 elementor-widget elementor-widget-image\" data-id=\"f4a2f04\" 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 loading=\"lazy\" decoding=\"async\" width=\"193\" height=\"73\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-calculation-formula.jpg\" class=\"attachment-full size-full wp-image-2779\" alt=\"k koeficiento skai\u010diavimo formul\u0117\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-calculation-formula.jpg 193w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-calculation-formula-18x7.jpg 18w\" sizes=\"(max-width: 193px) 100vw, 193px\" \/>\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-41265b6 elementor-widget elementor-widget-text-editor\" data-id=\"41265b6\" 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>Kur t yra atstumas nuo vidinio pavir\u0161iaus iki neutraliosios a\u0161ies, o T yra metalo storis.<\/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-6be4fc8 elementor-widget elementor-widget-image\" data-id=\"6be4fc8\" 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 loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"406\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-formula.jpg\" class=\"attachment-full size-full wp-image-2780\" alt=\"k koeficiento formul\u0117\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-formula.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-formula-300x187.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-formula-18x12.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-370e84c elementor-widget elementor-widget-text-editor\" data-id=\"370e84c\" 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>K koeficient\u0105 lemia med\u017eiagos fizin\u0117s savyb\u0117s, lenkimo b\u016bdas, lenkimo kampas ir kiti veiksniai.<\/p><p>K koeficient\u0173 reik\u0161m\u0117 visada bus nuo 0 iki 1. Jei ak koeficientas yra 0,25, tai rei\u0161kia, kad neutralioji a\u0161is yra detal\u0117s lak\u0161tinio metalo storio 25% auk\u0161tyje. Pana\u0161iai, jei jis yra 0,5, tai rei\u0161kia, kad neutralioji a\u0161is yra viso storio 50% auk\u0161tyje.<\/p><p><strong><b>Med\u017eiagos savyb\u0117s:<\/b><\/strong>\u00a0Paprastai jis svyruoja nuo 0,30 iki 0,50. Paprastai mink\u0161to vario arba mink\u0161to vario med\u017eiag\u0173 K koeficientas yra 0,35, toki\u0173 med\u017eiag\u0173 kaip pusiau kietas varis arba \u017ealvaris, ma\u017eaanglis plienas ir aliuminis \u2013 0,41, o toki\u0173 med\u017eiag\u0173 kaip bronza, kietas varis, \u0161altai valcuotas plienas ir spyruoklinis plienas \u2013 0,45.<\/p><p><strong><b>Lenkimo spindulys: <\/b><\/strong>Kuo ma\u017eesnis lenkimo spindulys, tuo didesnis K koeficientas.<\/p><p><strong><b>Med\u017eiagos storis: <\/b><\/strong>Kuo didesnis med\u017eiagos storis, tuo didesnis K koeficientas.<\/p><p><strong><b>Med\u017eiagos takumo riba:<\/b><\/strong>\u00a0Kuo didesnis takumo stipris, tuo ma\u017eesnis K koeficientas.<\/p><p><strong><b>Tamprumo modulis (taip pat \u017einomas kaip Youngo modulis):<\/b><\/strong>\u00a0Kuo didesnis med\u017eiagos storis, tuo didesnis K koeficientas.<\/p><p>Tiksliojo lak\u0161tinio metalo gamyboje naudojant <a href=\"https:\/\/www.shen-chong.com\/lt\/cnc-press-brake-machine\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\"><strong>CNC presavimo stabdys<\/strong><\/span><\/a>, K koeficientas yra labai svarbus veiksnys. K koeficientas naudojamas lenkimo plok\u0161tumos modeliui apskai\u010diuoti, kuris yra tiesiogiai susij\u0119s su lenkimo metu i\u0161tempto lak\u0161tinio metalo ilgiu.<\/p><p>Tai yra pagrindin\u0117 vert\u0117 nustatant lenkimo tolerancij\u0105 ir lenkimo i\u0161skait\u0105.<\/p><p>Kadangi atstumo iki neutraliosios a\u0161ies ir plok\u0161t\u0117s storio santykis lemia neutraliosios a\u0161ies pad\u0117t\u012f metalin\u0117je plok\u0161t\u0117je, K koeficiento \u017einojimas padeda nustatyti neutraliosios a\u0161ies pad\u0117t\u012f po lenkimo.<\/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-43164ec elementor-widget elementor-widget-heading\" data-id=\"43164ec\" 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\">Aliuminio ir plieno K faktoriai<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac1ec40 elementor-widget elementor-widget-text-editor\" data-id=\"ac1ec40\" 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>K koeficient\u0105 taip pat galite nustatyti naudodami toliau pateikt\u0105 lentel\u0119:<\/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-54e439a elementor-widget elementor-widget-image\" data-id=\"54e439a\" 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 loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"432\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-for-aluminum-and-steel.jpg\" class=\"attachment-full size-full wp-image-2781\" alt=\"Aliuminio ir plieno k koeficientas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-for-aluminum-and-steel.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-for-aluminum-and-steel-300x199.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/k-factor-for-aluminum-and-steel-18x12.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-b4650c3 elementor-widget elementor-widget-heading\" data-id=\"b4650c3\" 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\">Vario, \u017ealvario ir bronzos K faktoriai<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e2838a5 elementor-widget elementor-widget-text-editor\" data-id=\"e2838a5\" 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>Atlikus kruop\u0161t\u0173 tyrim\u0105, nustatyta, kad \u201eSolidWorks\u201c sistema taip pat teikia lenkimo kompensavimo algoritmus \u0161ioms konkre\u010dioms med\u017eiagoms, esant 90 laipsni\u0173 lenkimo kampui. Konkreti skai\u010diavimo formul\u0117 yra tokia:<\/p><p>Mink\u0161tas \u017ealvaris arba mink\u0161tas varis: BA = (0,55 * T) + (1,57 * R)<\/p><p>Tokios med\u017eiagos kaip pusiau kietas varis arba \u017ealvaris, mink\u0161tas plienas ir aliuminis: BA = (0,64 * T) + (1,57 * R). Tokios med\u017eiagos kaip bronza, kietas varis, \u0161altai valcuotas plienas ir spyruoklinis plienas: BA = (0,71 * T) + (1,57 * R). Ties\u0105 sakant, jei supaprastinsime lygt\u012f (7) ir nustatysime 90 laipsni\u0173 lenkimo kamp\u0105 bei apskai\u010diuosime konstant\u0105, lygt\u012f galima transformuoti \u012f:<\/p><p>BA = (1,57 * K * T) + (1,57 * R)<\/p><p>Taigi, mink\u0161to \u017ealvario arba mink\u0161to vario med\u017eiagoms, palyginus auk\u0161\u010diau pateikt\u0105 skai\u010diavimo formul\u0119, galime gauti 1,57xK=0,55K=0,55\/1,57=0,35. Tuo pa\u010diu metodu lengva apskai\u010diuoti keli\u0173 knygoje i\u0161vardyt\u0173 med\u017eiag\u0173 tip\u0173 k faktoriaus vertes.<\/p><p>Mink\u0161tas \u017ealvaris arba mink\u0161tas varis: K=0,35.<\/p><p>Tokios med\u017eiagos kaip pusiau kietas varis arba \u017ealvaris, mink\u0161tas plienas ir aliuminis: K = 0,41.<\/p><p>Tokios med\u017eiagos kaip bronza, kietasis varis, \u0161altai valcuotas plienas ir spyruoklinis plienas: K = 0,45.<\/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-46040d2 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"46040d2\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\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-8b1fb88 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8b1fb88\" 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-7e6bbb8\" data-id=\"7e6bbb8\" 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-bd5a701 elementor-widget elementor-widget-heading\" data-id=\"bd5a701\" 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\">Kas yra lenkimo dedukcija?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de42e94 elementor-widget elementor-widget-text-editor\" data-id=\"de42e94\" 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>Lenkiant lak\u0161tin\u012f metal\u0105, d\u0117l nepilnos med\u017eiagos plastin\u0117s deformacijos ir paties stakli\u0173 konstrukcini\u0173 apribojim\u0173, lenkiamo ruo\u0161inio kampas ir ilgis gali nukrypti nuo projektuot\u0173 matmen\u0173. Siekiant u\u017etikrinti lenkimo tikslum\u0105 ir ruo\u0161inio dyd\u012f, kuris atitikt\u0173 reikalavimus, br\u0117\u017einio gamybos metu b\u016btina atsi\u017evelgti \u012f lenkimo i\u0161skai\u010diavim\u0105, t. y. suma\u017einti lenkimo dyd\u012f.<\/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-89e97f1 elementor-widget elementor-widget-heading\" data-id=\"89e97f1\" 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\">Lenkimo dedukcijos apibr\u0117\u017eimas<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-035b4ef elementor-widget elementor-widget-text-editor\" data-id=\"035b4ef\" 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>Lenkimo i\u0161skai\u010diavimas yra med\u017eiagos ilgis, kur\u012f turime pa\u0161alinti i\u0161 bendro plok\u0161t\u0117s ilgio, kad gautume teising\u0105 plok\u0161\u010di\u0105 ra\u0161t\u0105.<\/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-60ab50c elementor-widget elementor-widget-heading\" data-id=\"60ab50c\" 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\">Lenkimo dedukcijos principas<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-51bf74d elementor-widget elementor-widget-text-editor\" data-id=\"51bf74d\" 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>Lenkimo dedukcijos principas \u2013 panaudoti med\u017eiagos elastin\u0119 deformacij\u0105, kad po lenkimo gautas ilgis ir kampas atitikt\u0173 projektavimo reikalavimus. Lenkiant lak\u0161tas dedamas ant lenkimo stakl\u0117s, kuri, veikdama lenkimo j\u0117g\u0105, sukelia lak\u0161to elastin\u0119 deformacij\u0105, d\u0117l kurios pasikei\u010dia forma ir kampas, ir galiausiai gaunama norima forma. \u0160iame procese lenkimo dedukcijos proces\u0105 galima tiksliai valdyti kei\u010diant br\u0117\u017einio dyd\u012f, kad b\u016bt\u0173 pasiektas projekte reikalaujamas tikslumas ir dydis.<\/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-163add4 elementor-widget elementor-widget-image\" data-id=\"163add4\" 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 loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"312\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-deduction-principle.jpg\" class=\"attachment-full size-full wp-image-2782\" alt=\"lenkimo dedukcijos principas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-deduction-principle.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-deduction-principle-300x144.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-deduction-principle-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-8eeddbb elementor-widget elementor-widget-text-editor\" data-id=\"8eeddbb\" 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>Pagal auk\u0161\u010diau pateikt\u0105 paveiksl\u0117l\u012f, lenkimo i\u0161skaita yra skirtumas tarp lenkimo tolerancijos ir dvigubo i\u0161orinio atstumo.<\/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-85e39fc elementor-widget elementor-widget-heading\" data-id=\"85e39fc\" 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\">Lenkimo atskaitymo skai\u010diavimo formul\u0117<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aed427f elementor-widget elementor-widget-image\" data-id=\"aed427f\" 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 loading=\"lazy\" decoding=\"async\" width=\"523\" height=\"76\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-deduction-formula.jpg\" class=\"attachment-full size-full wp-image-2783\" alt=\"lenkimo dedukcijos formul\u0117\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-deduction-formula.jpg 523w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-deduction-formula-300x44.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/05\/bend-deduction-formula-18x3.jpg 18w\" sizes=\"(max-width: 523px) 100vw, 523px\" \/>\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-f6f7d86 elementor-widget elementor-widget-text-editor\" data-id=\"f6f7d86\" 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>Kur:<\/p><p>OSSB \u2013 i\u0161orinis nuolydis (dalies, kuri t\u0119siasi u\u017e lenkimo kampo, ilgis).<\/p><p>R \u2013 lenkimo spindulys<\/p><p>K \u2013 K koeficientas (nustatomas pagal med\u017eiagos savybes ir stor\u012f)<\/p><p>T \u2013 med\u017eiagos storis<\/p><p>A \u2013 Norimas lenkimo kampas laipsniais<\/p><p>Tarkime, kad norime sulenkti 2 mm storio ner\u016bdijan\u010dio plieno lak\u0161t\u0105 90\u00b0 kampu, kurio vidinis lenkimo spindulys yra 3 mm. \u0160ios med\u017eiagos K koeficientas yra \u017einomas kaip 0,44. \u017dingsnis po \u017eingsnio apskai\u010diuokime lenkimo i\u0161skait\u0105:<\/p><ol><li>Apskai\u010diuokite lenkimo tolerancij\u0105 (BA):<\/li><\/ol><p>BA = \u03c0 * (R + K * T) * (A \/ 180)<\/p><p>Kur R yra vidinis lenkimo spindulys, K yra K koeficientas, T yra lak\u0161to storis, o A yra lenkimo kampas.<\/p><p>\u012ejungiant vertes:<\/p><p>BA = \u03c0 * (3 + 0,44 * 2) * (90 \/ 180) = 4,39 mm<\/p><ol start=\"2\"><li>Apskai\u010diuokite i\u0161orin\u012f nuolyd\u012f (OSSB):<\/li><\/ol><p>OSSB = R + T = 3 + 2 = 5 mm<\/p><ol start=\"3\"><li>Apskai\u010diuokite lenkimo i\u0161skait\u0105 (BD):<\/li><\/ol><p>BD = 2 * OSSB \u2013 BA<\/p><p>\u012ejungiant vertes:<\/p><p>BD = 2 * 5 \u2013 4,39 = 5,61 mm<\/p><p>Tod\u0117l norint pasiekti 90\u00b0 lenkim\u0105 su 3 mm vidiniu lenkimo spinduliu ant \u0161io 2 mm storio ner\u016bdijan\u010dio plieno lak\u0161to, lenkimo proceso metu turime nustatyti lenkimo nuokryp\u0105 \u012f 5,61 mm.<\/p><p>Tai rei\u0161kia, kad norint kompensuoti atatrank\u0105 po lenkimo, turime perlenkti lak\u0161t\u0105 5,61 mm ir galiausiai pasiekti norim\u0105 90\u00b0 lenkimo kamp\u0105.<\/p><p>Lenkimo i\u0161skaitos apskai\u010diavimas gali pad\u0117ti nustatyti detal\u0117s matmenis prie\u0161 lenkim\u0105, o tai leid\u017eia geriau planuoti gamyb\u0105 ir suma\u017einti med\u017eiag\u0173 atliekas.<\/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-8f08ff0 elementor-widget elementor-widget-heading\" data-id=\"8f08ff0\" 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\">Pagrindin\u0117s lenkimo dedukcijos funkcijos<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bafe19f elementor-widget elementor-widget-text-editor\" data-id=\"bafe19f\" 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<ol><li>U\u017etikrinkite lenkimo tikslum\u0105. Lenkimo dedukcija gali kontroliuoti sulenkto lak\u0161tinio metalo ilg\u012f ir kamp\u0105, taip u\u017etikrinant, kad pagamintos lak\u0161tinio metalo dalys atitikt\u0173 projekto dyd\u017eio ir tikslumo reikalavimus.<\/li><li>Pagerinti apdorojimo efektyvum\u0105. Lenkimo dedukcijos konstrukcija ne tik suma\u017eina gamybos apimt\u012f, bet ir leid\u017eia i\u0161vengti pakartotini\u0173 eksperiment\u0173 bei koregavim\u0173, taip pagerindama lak\u0161tinio metalo detali\u0173 gamybos efektyvum\u0105.<\/li><li>Suma\u017einkite med\u017eiag\u0173 atliekas. Naudojant lenkimo dedukcij\u0105 matmenims valdyti, galima i\u0161vengti per didelio apdorojimo ar med\u017eiag\u0173 \u0161vaistymo, taip suma\u017einant s\u0105naudas ir pagerinant gamybos efektyvum\u0105.<\/li><\/ol><p>Trumpai tariant, lenkimo i\u0161skaita yra labai svarbi grandis lak\u0161tinio metalo apdirbimo procese, taip pat raktas \u012f gatavo produkto kokyb\u0117s ir tikslumo u\u017etikrinim\u0105. Faktinio apdorojimo metu lenkimo i\u0161skaitos vert\u0117 tur\u0117t\u0173 b\u016bti pagr\u012fstai pakoreguota atsi\u017evelgiant \u012f konkre\u010di\u0105 situacij\u0105, kad b\u016bt\u0173 pasiektas geriausias apdorojimo efektas.<\/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-ee7509b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"ee7509b\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\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-8b38b40 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8b38b40\" 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-309117f\" data-id=\"309117f\" 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-6b60e00 elementor-widget elementor-widget-heading\" data-id=\"6b60e00\" 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\">Med\u017eiagos su skirtingu lenkimo leidimu<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-560debf elementor-widget elementor-widget-heading\" data-id=\"560debf\" 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\">Koks metalas gali gerai lenktis?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a1541a4 elementor-widget elementor-widget-text-editor\" data-id=\"a1541a4\" 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>Visi metalai turi tam tikr\u0105 elastingumo laipsn\u012f. Kai kurie metalai yra elastingesni u\u017e kitus ir, palyginti su kitomis med\u017eiagomis, gali pasiekti didesnes lenkimo paklaidas. Metalai klasifikuojami pagal j\u0173 tamprumo modul\u012f, kuris yra \u012ftempio ir deformacijos santykis metalo deformacijos metu. Tamprumo modulis taip pat yra med\u017eiagos standumo arba elastingumo pasiprie\u0161inimo matavimo priemon\u0117. Kitos med\u017eiagos, tokios kaip guma ir stiklas, taip pat gali b\u016bti apskai\u010diuojamos tokiu pa\u010diu b\u016bdu.<\/p><p>Keista, bet vienas elastingiausi\u0173 metal\u0173 yra nikelio titanas, dar \u017einomas kaip nikelio titanas, kurio sl\u0117gis siekia 28 GPa. J\u012f galima daug kart\u0173 \u012ftempti ir nelaikyti deformuotu. Tarp \u012fprast\u0173 metal\u0173 r\u016b\u0161i\u0173 antri pagal elastingum\u0105 metalai yra 45 GPa alavas, magnis, kadmis ir 69 GPa aliuminis. \u017dinoma, aliuminis yra \u017einomas d\u0117l savo lengvumo ir lenkiamumo, ta\u010diau kalbant apie grynus metalus, \u012fskaitant lydinius, yra metal\u0173, kurie gali j\u012f pranokti \u0161iuo at\u017evilgiu.<\/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-ee44e3a elementor-widget elementor-widget-heading\" data-id=\"ee44e3a\" 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\">Kurie metalai negali gerai lenktis arba l\u016b\u017eta, kai per daug sulenkiami?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d8b8e64 elementor-widget elementor-widget-text-editor\" data-id=\"d8b8e64\" 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>Kaip gerai \u017einoma, dauguma metal\u0173 yra labai kieti, ir jei med\u017eiaga nebus sulenkta, sulenkus ji tikrai sul\u016b\u017es. I\u0161 vis\u0173 lydini\u0173 volframas yra kie\u010diausias metalas, siekiantis iki 411 GPa. Net ir ploniausios formos volfram\u0105 sunku sulenkti, tod\u0117l jis grei\u010diausiai d\u016b\u017eta kaip stiklas. Antras kie\u010diausias metalas yra 304 GPa berilio varis. Chromas yra med\u017eiaga, randama deimantuose ir kituose brangakmeniuose, u\u017eimanti tre\u010di\u0105 viet\u0105 su 279 GPa kietumu. Kaltin\u0117s gele\u017eies ir kobalto kietumas yra 211 GPa. Esant 210 GPa kietumui, yra daug daugiau \u012fprast\u0173 metalo lak\u0161t\u0173, toki\u0173 kaip plienas, ner\u016bdijantis plienas, kobaltas ir nikelis. Kaip \u017einoma, dauguma metal\u0173 laikomi labai kietais, ta\u010diau, kaip min\u0117ta anks\u010diau, kai kurie metalai n\u0117ra tokie kieti kaip kiti.<\/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-79c4f81 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"79c4f81\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\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-11627b9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"11627b9\" 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-77554ef\" data-id=\"77554ef\" 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-cd896eb elementor-widget elementor-widget-heading\" data-id=\"cd896eb\" 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\">I\u0161vada<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b1b0f4 elementor-widget elementor-widget-text-editor\" data-id=\"7b1b0f4\" 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>K koeficientas, dar \u017einomas kaip lenkimo spindulio koeficientas, atspindi med\u017eiagos polink\u012f temptis i\u0161oriniame pavir\u0161iuje ir suspausti vidiniame pavir\u0161iuje lenkimo metu.<\/p><p>Tinkamas K koeficiento apskai\u010diavimas yra svarbus norint nustatyti neutraliosios a\u0161ies pad\u0117t\u012f ir suma\u017einti galimus defektus, tokius kaip \u012ftr\u016bkimai ar rauk\u0161l\u0117s.<\/p><p>Lenkimo tolerancija rei\u0161kia papildom\u0105 med\u017eiag\u0105, reikaling\u0105 lenkimo spinduliui pritaikyti, kad med\u017eiaga neb\u016bt\u0173 per daug i\u0161tempta ar suspausta.<\/p><p>Tikslus lenkimo tolerancijos apskai\u010diavimas yra labai svarbus siekiant u\u017etikrinti, kad galutin\u0117s detal\u0117s matmenys atitikt\u0173 projekto specifikacijas.<\/p><p>Kita vertus, lenkimo dedukcija kompensuoja med\u017eiagos at\u0161okimo efekt\u0105, kai sulenkta dalis linkusi i\u0161 dalies i\u0161sitiesinti, kai lenkimo j\u0117ga nebeveikia.<\/p><p>Norint pasiekti norim\u0105 lenkimo kamp\u0105 ir i\u0161laikyti matmen\u0173 tikslum\u0105, b\u016btina atsi\u017evelgti \u012f lenkimo i\u0161skai\u010diavim\u0105.<\/p><p>Suprasdami ir tinkamai pritaikydami \u0161iuos esminius veiksnius, galite optimizuoti j\u0173 lenkimo procesus, suma\u017einti med\u017eiag\u0173 atliekas ir nuolat gaminti auk\u0161tos kokyb\u0117s lenktus komponentus, atitinkan\u010dius grie\u017e\u010diausius reikalavimus.<\/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-439923d elementor-widget elementor-widget-text-editor\" data-id=\"439923d\" 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>Susij\u0119 straipsniai:<\/strong><\/p><p><a href=\"https:\/\/www.shen-chong.com\/lt\/press-brake-tonnage-calculator-for-users\/\" target=\"_blank\" rel=\"noopener\">Preso stabd\u017ei\u0173 tona\u017eo apskai\u010diavimas<\/a>\u00a0<\/p><p><a href=\"https:\/\/www.shen-chong.com\/lt\/top-8-china-laser-cutting-machine-brands-ranking\/\" target=\"_blank\" rel=\"noopener\">8 geriausi lazerinio pjovimo stakli\u0173 gamintojai<\/a><\/p><p><a href=\"https:\/\/www.shen-chong.com\/lt\/top-12-cnc-machine-manufacturers\/\" target=\"_blank\" rel=\"noopener\">12 geriausi\u0173 CNC stakli\u0173 gamintoj\u0173<\/a><\/p><p><a href=\"https:\/\/www.shen-chong.com\/lt\/top-china-press-brake-machine-brands-ranking\/\" target=\"_blank\" rel=\"noopener\">Geriausi Kinijos presavimo stabd\u017ei\u0173 ma\u0161in\u0173 preki\u0173 \u017eenkl\u0173 reitingas<\/a><\/p><p><a href=\"https:\/\/www.shen-chong.com\/lt\/all-you-need-to-know-about-sheet-metal-gauge\/\" target=\"_blank\" rel=\"noopener\">Viskas, k\u0105 reikia \u017einoti apie lak\u0161tinio metalo matuokl\u012f<\/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>Turinys \u012evadas Tinkamo K koeficiento, lenkimo tolerancijos ir lenkimo i\u0161skaitos apskai\u010diavimas yra labai svarb\u016bs norint gauti geros kokyb\u0117s galutin\u0119 detal\u0119 i\u0161 hidraulinio preso stabd\u017eio. Preso stabd\u017eio \u017einios ir technika yra jo pagrindas, kuris yra nepaprastai svarbus norint j\u012f naudoti gamyboje. Plok\u0161\u010dio ra\u0161to ilgio apskai\u010diavimas i\u0161 [\u2026]<\/p>","protected":false},"author":1,"featured_media":2773,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2772","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>What Are The K Factor, Bend Allowance, And Bend Deduction? - SC Machinery<\/title>\n<meta name=\"description\" content=\"Bend allowance, K factor and bend deduction are critical value during the bending process. 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