{"id":3147,"date":"2024-07-22T01:18:00","date_gmt":"2024-07-22T01:18:00","guid":{"rendered":"https:\/\/www.shen-chong.com\/?p=3147"},"modified":"2024-07-31T02:27:45","modified_gmt":"2024-07-31T02:27:45","slug":"comprehensive-introduction-sheet-metal-bending","status":"publish","type":"post","link":"https:\/\/www.shen-chong.com\/lt\/comprehensive-introduction-sheet-metal-bending\/","title":{"rendered":"I\u0161samus \u012fvadas: Lak\u0161tinio metalo lenkimas"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3147\" class=\"elementor elementor-3147\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-13dd10f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"13dd10f\" 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 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.elementor-toc__list-wrapper{margin-top:.5em;margin-left:var(--nested-list-indent,1em)}.elementor-toc__list-item-text:hover{color:var(--item-text-hover-color);-webkit-text-decoration:var(--item-text-hover-decoration);text-decoration:var(--item-text-hover-decoration)}.elementor-toc__list-item-text.elementor-item-active{color:var(--item-text-active-color);-webkit-text-decoration:var(--item-text-active-decoration);text-decoration:var(--item-text-active-decoration)}.elementor-toc__list-item-text-wrapper{display:flex;align-items:center}.elementor-toc__list-item-text-wrapper:before,.elementor-toc__list-item-text-wrapper i{margin-right:8px;color:var(--marker-color)}.elementor-toc__list-item-text-wrapper svg{margin-right:8px;fill:var(--marker-color);height:var(--marker-size,.5em);width:var(--marker-size,.5em)}.elementor-toc__list-item-text-wrapper i{font-size:var(--marker-size,.5em)}.elementor-toc__list-item-text-wrapper:before{font-size:var(--marker-size,1em)}.elementor-toc--content-ellipsis .elementor-toc__list-item-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.elementor-toc__list-items--collapsible>.elementor-toc__list-wrapper>.elementor-toc__list-item>.elementor-toc__list-wrapper{display:none}.elementor-toc__heading-anchor{position:absolute}.elementor-toc__body .elementor-toc__list-item-text{color:var(--item-text-color);-webkit-text-decoration:var(--item-text-decoration);text-decoration:var(--item-text-decoration)}.elementor-toc__body .elementor-toc__list-item-text:hover{color:var(--item-text-hover-color);-webkit-text-decoration:var(--item-text-hover-decoration);text-decoration:var(--item-text-hover-decoration)}.elementor-toc__body .elementor-toc__list-item-text.elementor-item-active{color:var(--item-text-active-color);-webkit-text-decoration:var(--item-text-active-decoration);text-decoration:var(--item-text-active-decoration)}ol.elementor-toc__list-wrapper{counter-reset:item}ol.elementor-toc__list-wrapper .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__baf691f\" 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 class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__baf691f\" aria-expanded=\"true\" aria-label=\"U\u017edaryti turin\u012f\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-chevron-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M240.971 130.524l194.343 194.343c9.373 9.373 9.373 24.569 0 33.941l-22.667 22.667c-9.357 9.357-24.522 9.375-33.901.04L224 227.495 69.255 381.516c-9.379 9.335-24.544 9.317-33.901-.04l-22.667-22.667c-9.373-9.373-9.373-24.569 0-33.941L207.03 130.525c9.372-9.373 24.568-9.373 33.941-.001z\"><\/path><\/svg><\/div>\n\t\t\t\t\t<\/div>\n\t\t<div id=\"elementor-toc__baf691f\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<svg class=\"elementor-toc__spinner eicon-animation-spin e-font-icon-svg e-eicon-loading\" aria-hidden=\"true\" viewbox=\"0 0 1000 1000\" 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<div class=\"elementor-element elementor-element-789e3cb elementor-widget elementor-widget-text-editor\" data-id=\"789e3cb\" 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>Lak\u0161tinio metalo lenkimas (kartais vadinamas lak\u0161tinio metalo flan\u0161\u0173 spaudimu) yra viena i\u0161 svarbiausi\u0173 ir pla\u010diausiai naudojam\u0173 lak\u0161tinio metalo gamybos technik\u0173.<\/p><p>Lak\u0161tinio metalo lenkimas leid\u017eia gamintojams paversti tiesi\u0105 lak\u0161tinio metalo detal\u0119 kampuota, o tai yra ekonomi\u0161kiau nei suvirinti ar tvirtinti dvi atskiras dalis.<\/p><p>Lak\u0161tinio metalo lenkimas paprastai atliekamas taikant j\u0117g\u0105 lak\u0161tiniam metalui taip, kad sukelt\u0173 nuolatin\u0119 deformacij\u0105. Ta\u010diau yra daug skirting\u0173 lenkimo metod\u0173 ir lenkimo stakli\u0173, kuriuos galima naudoti norint pasiekti geriausi\u0173 rezultat\u0173.<\/p><p>\u0160is straipsnis yra \u012fvadas \u012f lak\u0161tinio metalo lenkim\u0105, supa\u017eindinantis su pagrindin\u0117mis lenkimo \u017einiomis, tipine lenkimo \u012franga, lak\u0161tinio metalo lenkimo tipais ir technin\u0117mis atsargumo priemon\u0117mis, tokiomis kaip lenkimo tolerancija ir lenkimo at\u0161okis.<\/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-c937f6d elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"c937f6d\" 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 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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-6726eae elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6726eae\" 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-5f41546\" data-id=\"5f41546\" 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-ef5ac1f elementor-widget elementor-widget-heading\" data-id=\"ef5ac1f\" 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\">Kas yra lak\u0161tinio metalo lenkimas?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6552277 elementor-widget elementor-widget-text-editor\" data-id=\"6552277\" 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>Lak\u0161tinio metalo lenkimas yra metalo apdirbimo technika, naudojama plok\u0161\u010dioms lak\u0161tinio metalo detal\u0117ms paversti V, U formos arba grioveliais.<\/p><p>Tai svarbus ir patogus gamybos procesas, nes plok\u0161\u010dios metalin\u0117s plok\u0161t\u0117s lenkimas \u012f nauj\u0105 form\u0105 yra daug pigesnis nei V, U ar kanal\u0173 form\u0173 apdirbimas i\u0161 vientis\u0173 ruo\u0161ini\u0173 arba j\u0173 liejimas liejykloje. Be to, lenkimo b\u016bdu pagamintos dalys yra tvirtesn\u0117s nei tos, kurios pagamintos suvirinant du plok\u0161\u010dius metalinius lak\u0161tus \u012f V form\u0105.<\/p><p>Daugelio tip\u0173 lak\u0161tinio metalo lenkimui naudojamos ma\u0161inos, vadinamos stabd\u017eiais, kartais vadinamos lenkimo stakl\u0117mis arba lak\u0161tinio metalo lankstymo stakl\u0117mis. J\u0117ga gali b\u016bti taikoma rankiniu b\u016bdu arba naudojant hidraulinius \u012frenginius.<\/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-c4d2e6b elementor-widget elementor-widget-heading\" data-id=\"c4d2e6b\" 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\">Lak\u0161tinio metalo lenkimo metodai<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4fbcc4 elementor-widget elementor-widget-text-editor\" data-id=\"f4fbcc4\" 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>Yra keli lak\u0161tinio metalo lenkimo b\u016bdai, kurie visi yra pana\u0161ios funkcijos, bet skiriasi veikimo principu. Tod\u0117l idealaus metodo pasirinkimas yra pirmas \u017eingsnis, kur\u012f turite \u017eengti, kad s\u0117kmingai \u012fgyvendintum\u0117te savo lak\u0161tinio metalo formavimo projekt\u0105. Yra keli lak\u0161tinio metalo lenkimo b\u016bdai, kurie visi yra pana\u0161ios funkcijos, bet skiriasi veikimo principu. Tod\u0117l idealaus metodo pasirinkimas yra pirmas \u017eingsnis, kur\u012f turite \u017eengti, kad s\u0117kmingai \u012fgyvendintum\u0117te savo lak\u0161tinio metalo formavimo projekt\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-0ef1f3c elementor-widget elementor-widget-heading\" data-id=\"0ef1f3c\" 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 formos lenkimas<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-059a276 elementor-widget elementor-widget-image\" data-id=\"059a276\" 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=\"326\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/v-bend.jpg\" class=\"attachment-full size-full wp-image-3156\" alt=\"V formos lenkimas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/v-bend.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/v-bend-300x150.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/v-bend-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-9cb4764 elementor-widget elementor-widget-text-editor\" data-id=\"9cb4764\" 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 formos lenkimas yra labiausiai paplit\u0119s lak\u0161tinio metalo lenkimo b\u016bdas. Procese naudojamas V formos perforatorius ir matrica. V formos perforatorius \u012fspaud\u017eia lak\u0161tinio metalo ruo\u0161in\u012f \u012f matricos \u201eV formos\u201c griovel\u012f, suformuodamas lak\u0161tus su skirtingais lenkimo kampais. Operatoriai gali pasiekti smail\u0173, buk\u0105j\u012f arba 90\u00b0 lenkimo kamp\u0105, priklausomai nuo V formos perforatoriaus ir matricos kampo.<\/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-7c6d432 elementor-widget elementor-widget-heading\" data-id=\"7c6d432\" 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\">Oro lenkimas<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9b572f4 elementor-widget elementor-widget-image\" data-id=\"9b572f4\" 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=\"400\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/air-bend.jpg\" class=\"attachment-full size-full wp-image-3151\" alt=\"oro lenkimas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/air-bend.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/air-bend-300x185.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/air-bend-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-275755a elementor-widget elementor-widget-text-editor\" data-id=\"275755a\" 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>Oro lenkimas yra gana pana\u0161us \u012f V formos lenkimo metod\u0105: jis pagr\u012fstas V formos perforatoriumi ir matrica, skirta lak\u0161tiniam metalui lenkti. \u0160is metodas n\u0117ra toks tikslus kaip kiti, ta\u010diau yra labai lankstus: j\u012f galima naudoti V, U ir kit\u0173 form\u0173 lenkimams kurti. Ta\u010diau, skirtingai nei \u012fprastas V lenkimo procesas, oro lenkimo metodo perforatorius nespaud\u017eia lak\u0161to \u012f ertm\u0117s dugn\u0105. Vietoj to, po lak\u0161tu paliekama erdv\u0117 (arba oras), tod\u0117l galima geriau valdyti lenkimo kamp\u0105 nei \u012fprasto V lenkimo metu.<\/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-7e6f700 elementor-widget elementor-widget-heading\" data-id=\"7e6f700\" 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\">Apatinis lenkimas<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5325099 elementor-widget elementor-widget-image\" data-id=\"5325099\" 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=\"400\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/bottom-bend.jpg\" class=\"attachment-full size-full wp-image-3152\" alt=\"apatinis lenkimas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/bottom-bend.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/bottom-bend-300x185.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/bottom-bend-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-fdc37a7 elementor-widget elementor-widget-text-editor\" data-id=\"fdc37a7\" 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>Apatinis lenkimas (arba apatinis lenkimas) yra V formos lenkimo tipas, kuris taip pat i\u0161sprend\u017eia spyruoklinio atsparumo problem\u0105. Tai apima lak\u0161tinio metalo deformavim\u0105 lenkimo srityje, pritaikant papildom\u0105 j\u0117g\u0105 per perforatoriaus galiuk\u0105 po lenkimo pabaigos. Apatinio lenkimo proceso metu perforatorius visi\u0161kai prispaud\u017eia metalin\u0119 plok\u0161t\u0119 prie formos, suformuodamas lenkim\u0105, atitinkant\u012f geometrin\u0119 form\u0105 formos viduje.<\/p><p>Kaip ir oro lenkimo metodas, apatinis lenkimas leid\u017eia tiksliai valdyti lenkimo kamp\u0105. Ta\u010diau oro lenkimui reikia didesn\u0117s spaudimo j\u0117gos nei apatiniam lenkimui.<\/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-809764a elementor-widget elementor-widget-heading\" data-id=\"809764a\" 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\">Kra\u0161t\u0173 lenkimas<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7460735 elementor-widget elementor-widget-image\" data-id=\"7460735\" 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=\"327\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/edge-bend.jpg\" class=\"attachment-full size-full wp-image-3153\" alt=\"kra\u0161to lenkimas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/edge-bend.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/edge-bend-300x151.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/edge-bend-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-68d7f6d elementor-widget elementor-widget-text-editor\" data-id=\"68d7f6d\" 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>\u0160is metodas naudojamas <strong><b>skydo lenkimas<\/b><\/strong><strong><b>er<\/b><\/strong>\u00a0ir apima vir\u0161utini\u0173 ir apatini\u0173 form\u0173, kurios juda auk\u0161tyn ir \u017eemyn lenkimui, naudojim\u0105. Paprastai jis naudojamas trumpesniems metalo lak\u0161tams, siekiant suma\u017einti a\u0161trum\u0105 ir i\u0161vengti lenkimo kra\u0161to pa\u017eeidim\u0173.<\/p><p>Kra\u0161t\u0173 lenkimo metodu lak\u0161tas prie \u0161tampo prispaud\u017eiamas spaudimo pagalv\u0117l\u0117s. Tada perforatorius spaud\u017eia lak\u0161to kra\u0161t\u0105, kuris t\u0119siasi u\u017e \u0161tampo ir spaudimo pagalv\u0117l\u0117s, tod\u0117l jis sulenkiamas vir\u0161 \u0161tampo galo.<\/p><p>\u0160is metodas pasi\u017eymi geru mechaniniu prana\u0161umu, o tai rei\u0161kia, kad leid\u017eia naudoti ma\u017eiau j\u0117gos norint sukurti norimus lenkimus (ir lenkimo kampus).<\/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-56a7c49 elementor-widget elementor-widget-heading\" data-id=\"56a7c49\" 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\">Ritinio lenkimas<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2bc2f14 elementor-widget elementor-widget-image\" data-id=\"2bc2f14\" 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=\"356\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/roll-bend.jpg\" class=\"attachment-full size-full wp-image-3154\" alt=\"ritininis lenkimas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/roll-bend.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/roll-bend-300x164.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/roll-bend-18x10.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-0999cd8 elementor-widget elementor-widget-text-editor\" data-id=\"0999cd8\" 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>Valcavimo metodas leid\u017eia sulenkti lak\u0161tin\u012f metal\u0105 \u012f ritinius, vamzd\u017eius, k\u016bgius arba i\u0161lenktas formas. \u0160is unikalus lak\u0161tinio metalo formavimo procesas naudoja voleli\u0173 rinkinius, kurie tiekia (ir sulenkia) metalo ruo\u0161in\u012f iki norimo kreivumo.<\/p><p>\u0160is procesas naudojamas ruo\u0161iniams su dideliais garbanomis lenkti ir apima trij\u0173 hidraulin\u0117s sistemos varom\u0173 ritin\u0117li\u0173 naudojim\u0105 lak\u0161tui lenkti.<\/p><p>Ritinio lenkimo metod\u0105 galima apdoroti 4 ritin\u0117li\u0173 plok\u0161\u010di\u0173 lenkimo stakl\u0117mis arba 3 ritin\u0117li\u0173 plok\u0161\u010di\u0173 lenkimo stakl\u0117mis.<\/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-1793531 elementor-widget elementor-widget-heading\" data-id=\"1793531\" 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\">Rotacinis lenkimas<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9ef72bf elementor-widget elementor-widget-image\" data-id=\"9ef72bf\" 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=\"400\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/rotary-bend.jpg\" class=\"attachment-full size-full wp-image-3155\" alt=\"sukamasis lenkimas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/rotary-bend.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/rotary-bend-300x185.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/07\/rotary-bend-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-d81ba4e elementor-widget elementor-widget-text-editor\" data-id=\"d81ba4e\" 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>Sukamojo lenkimo metu galima sulenkti lak\u0161tin\u012f metal\u0105 daugiau nei 90 laipsni\u0173 kampu. Galutinis profilis yra pana\u0161us \u012f V formos lenkim\u0105, ta\u010diau profilio pavir\u0161ius yra lygesnis. Sukamojo lenkimo metu lak\u0161tinis metalas pritvirtinamas prie besisukan\u010dio \u0161tampo ir tempiamas aplink \u0161tampo form\u0105, kad b\u016bt\u0173 suformuota geometrija, kurios spindulys atitikt\u0173 norim\u0105 lenkimo spindul\u012f. \u0160is metodas da\u017enai naudoja vidin\u012f atramin\u012f \u012ftvar\u0105, kad b\u016bt\u0173 i\u0161vengta rauk\u0161li\u0173 ant sulenkto lak\u0161tinio metalo sienel\u0117s.<\/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-ae6cace elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"ae6cace\" 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-f7baddb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f7baddb\" 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-912a56a\" data-id=\"912a56a\" 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-30fea36 elementor-widget elementor-widget-heading\" data-id=\"30fea36\" 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\">Lak\u0161tinio metalo lenkimo stakl\u0117s<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f8a2ae elementor-widget elementor-widget-heading\" data-id=\"7f8a2ae\" 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\"><a href=\"https:\/\/www.shen-chong.com\/lt\/press-brake\/\" target=\"_blank\">Hidraulinis presavimo stabdys<\/a><\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-de85122 elementor-widget elementor-widget-image\" data-id=\"de85122\" 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=\"400\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/01\/hybrid-servo-press-brake-for-sale.jpg\" class=\"attachment-full size-full wp-image-1429\" alt=\"hibridinis servo presavimo stabdys parduodamas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/01\/hybrid-servo-press-brake-for-sale.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/01\/hybrid-servo-press-brake-for-sale-300x185.jpg 300w\" 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-c142034 elementor-widget elementor-widget-text-editor\" data-id=\"c142034\" 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>Hidraulinis presavimo stakli\u0173 lenkimo ir formavimo \u012frenginys yra viena i\u0161 svarbiausi\u0173 \u012frangos lak\u0161tinio metalo pramon\u0117je ruo\u0161iniams lenkti ir formuoti. Jo funkcija \u2013 lenkti plienines plok\u0161tes \u012f \u012fvairi\u0173 form\u0173 detales pagal proceso reikalavimus.<\/p><p>Presavimo stakl\u0117mis stakl\u0117s \u2013 tai plok\u0161\u010di\u0173 lenkimo stakl\u0117s, kuriose naudojamas judantis vir\u0161utinis perforatorius ir atitinkama apatin\u0117 matrica. Lenkimo metu metalin\u0117 plok\u0161t\u0117 u\u017ededama ant apatinio matricos, o perforatorius j\u0117ga stumiamas \u012f metal\u0105, priversdamas j\u012f patekti \u012f apatinio matricos \u012fpjov\u0105. Priklausomai nuo apatinio matricos formos, presavimo stakl\u0117mis galima pagaminti V formos, U formos ir kitas formas. Hidraulin\u0117s presavimo stakl\u0117mis galima pagaminti \u012fvairi\u0173 ruo\u0161ini\u0173 poreikius, pakei\u010diant presavimo stakli\u0173 \u012frankius.<\/p><p>Hidraulin\u0117s lenkimo stabd\u017ei\u0173 ma\u0161inos pagal sinchronizavimo metodus gali b\u016bti skirstomos \u012f sukimo a\u0161ies sinchronizavimo ir elektrohidraulin\u0117s sinchronizavimo ma\u0161inas. \u0160iuo metu rinkoje esantis auk\u0161\u010diausios klas\u0117s presavimo stabdys yra servo hibridinis presavimo stabdys.<\/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-0b428c1 elementor-widget elementor-widget-heading\" data-id=\"0b428c1\" 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\"><a href=\"https:\/\/www.shen-chong.com\/lt\/panel-bender\/\" target=\"_blank\">Skyd\u0173 lenktuvas<\/a><\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b5a052e elementor-widget elementor-widget-image\" data-id=\"b5a052e\" 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=\"400\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/01\/automatic-panel-bending-center.jpg\" class=\"attachment-full size-full wp-image-1528\" alt=\"automatinis plok\u0161\u010di\u0173 lenkimo centras\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/01\/automatic-panel-bending-center.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/01\/automatic-panel-bending-center-300x185.jpg 300w\" 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-57aced3 elementor-widget elementor-widget-text-editor\" data-id=\"57aced3\" 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\u010di\u0173 lenkimo stakl\u0117s yra gamybos ir perdirbimo pramon\u0117s \u0161akose naudojamos stakl\u0117s metalin\u0117ms plok\u0161t\u0117ms lenkti arba formuoti \u012f tam tikras formas. Veikimo principas paprastai yra metalin\u0117s plok\u0161t\u0117s \u012ftvirtinimas ir pozicionavimas, o tada mechanin\u0117s arba hidraulin\u0117s sistemos naudojimas metalui lenkti i\u0161ilgai i\u0161 anksto nustatytos a\u0161ies. Lenkimo centrai atlieka labai svarb\u0173 vaidmen\u012f pramon\u0117s \u0161akose, kurioms reikalingas tikslus ir efektyvus metalo lak\u0161t\u0173 form\u0173 formavimas, suma\u017einant rankinio darbo poreik\u012f ir pagerinant bendr\u0105 gatav\u0173 gamini\u0173 kokyb\u0119.<\/p><p>Plok\u0161\u010di\u0173 lenkimo stakl\u0117s gali automati\u0161kai atlikti kelis lenkimus kiekvienai pusei, \u012fskaitant lenkimus auk\u0161tyn\/\u017eemyn, plok\u0161\u010dius arba lenktus. I\u0161manioji lanksti plok\u0161\u010di\u0173 lenkimo centro servo sistema naudoja grynai elektrin\u0119 u\u017edaros kilpos servo sistem\u0105, kuri gali palaikyti 16 a\u0161i\u0173 lygiagre\u010di\u0105 jungt\u012f ties vir\u0161utine sistemos riba. Fakti\u0161kai naudojamos 9 a\u0161ys (11 a\u0161i\u0173), o tai rei\u0161kia, kad prakti\u0161kai 9 a\u0161ys (11 a\u0161i\u0173) yra lygiagre\u010dios. Lenkimo veiksmas yra sklandus, o mechaninio veikimo koordinacija yra auk\u0161ta. Ji gali s\u0117kmingai atlikti \u012fvairius sud\u0117tingus veiksm\u0173 derinius, o bendras ma\u0161inos darbo efektyvumas yra labai didelis.<\/p><p>I\u0161manus lankstus plok\u0161\u010di\u0173 lenkimo \u012frenginys naudoja universali\u0105 lenkimo form\u0105, kuri leid\u017eia lenkti \u012fvairias formas per daugiaa\u0161\u0119 lygiagre\u010di\u0105 jungt\u012f ir visi\u0161k\u0105 servo valdym\u0105, taip pat gali sulenkti \u012fvairias sud\u0117tingas formas. Sud\u0117tingas formas galima sulankstyti \u012f \u012fvairius derinius, tokius kaip stat\u016bs kampai, ne stat\u016bs kampai, arkos, vir\u0161utiniai sulenkimai ir apatiniai sulenkimai.<\/p><p>Plok\u0161\u010di\u0173 lenkimo stakl\u0117s skirtos spr\u0119sti \u012fvairias sud\u0117tingas plon\u0173 plok\u0161\u010di\u0173 lenkimo problemas. Jos gali b\u016bti pla\u010diai naudojamos plienini\u0173 spinteli\u0173 korpus\u0173 (byl\u0173 spinteli\u0173, \u012franki\u0173 spinteli\u0173, i\u0161orini\u0173 dang\u010di\u0173, elektros spinteli\u0173, ry\u0161i\u0173 spinteli\u0173, duj\u0173 spinteli\u0173, vandens skaitikli\u0173 spinteli\u0173 ir kt.), virtuv\u0117s reikmen\u0173 (\u0161aldytuv\u0173, oro kondicionieri\u0173, virykli\u0173 ir kt.), bald\u0173, v\u0117dinimo, \u0161aldymo, valymo, dur\u0173 pramon\u0117s, dekoravimo, lift\u0173 ir kitose susijusiose metalo formavimo srityse, tinka \u012fvairi\u0173 tip\u0173 ruo\u0161ini\u0173 lenkimui.<\/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-31a1e43 elementor-widget elementor-widget-heading\" data-id=\"31a1e43\" 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\"><a href=\"https:\/\/www.shen-chong.com\/lt\/plate-rolling-machine\/\" target=\"_blank\">Lenkimo ritininis aparatas<\/a><\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5e6dc8f elementor-widget elementor-widget-image\" data-id=\"5e6dc8f\" 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=\"400\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/02\/4-rollers-plate-rolling-machine.jpg\" class=\"attachment-full size-full wp-image-1584\" alt=\"4 voleli\u0173 plok\u0161\u010di\u0173 valcavimo ma\u0161ina\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/02\/4-rollers-plate-rolling-machine.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/02\/4-rollers-plate-rolling-machine-300x185.jpg 300w\" 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-775bd21 elementor-widget elementor-widget-text-editor\" data-id=\"775bd21\" 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\u010di\u0173 valcavimo stakl\u0117s yra \u012frenginys, kuris naudoja darbinius volelius lak\u0161tiniam metalui lenkti ir formuoti, ir gali formuoti \u012fvairi\u0173 form\u0173 detales, tokias kaip cilindrin\u0117s ir k\u016bgin\u0117s detal\u0117s. Tai labai svarbi apdorojimo \u012franga. Plok\u0161\u010di\u0173 lenkimo stakl\u0117s veikimo principas yra i\u0161orini\u0173 j\u0117g\u0173, toki\u0173 kaip hidraulinis sl\u0117gis ir mechanin\u0117 j\u0117ga, panaudojimas darbiniams voleliams judinti, taip sulenkiant arba formuojant lak\u0161tin\u012f metal\u0105. Remiantis \u012fvairi\u0173 form\u0173 darbini\u0173 voleli\u0173 sukamuoju judesiu ir pad\u0117ties poky\u010diais, galima apdirbti elips\u0117s, lanko formos, cilindrines ir kitas detales.<\/p><p>Valcavimo stakli\u0173 tipai skiriasi priklausomai nuo naudojimo srities. Pagal ritin\u0117li\u0173 skai\u010di\u0173 jos skirstomos \u012f trij\u0173 ritin\u0117li\u0173 plok\u0161\u010di\u0173 valcavimo stakles ir keturi\u0173 ritin\u0117li\u0173 plok\u0161\u010di\u0173 valcavimo stakles. Trij\u0173 ritin\u0117li\u0173 valcavimo stakl\u0117s skirstomos \u012f simetri\u0161kas trij\u0173 ritin\u0117li\u0173 valcavimo stakles, horizontaliai \u017eemyn reguliuojamas trij\u0173 ritin\u0117li\u0173 valcavimo stakles, lenktai \u017eemyn reguliuojamas valcavimo stakles, universalias vir\u0161utinio ritin\u0117lio trij\u0173 ritin\u0117li\u0173 valcavimo stakles ir hidraulines CNC valcavimo stakles. Pavar\u0173 d\u0117\u017e\u0117s po\u017ei\u016briu jas galima suskirstyti \u012f mechanines ir hidraulines.<\/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-9dcab77 elementor-widget elementor-widget-heading\" data-id=\"9dcab77\" 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\"><a href=\"https:\/\/www.shen-chong.com\/lt\/hydraulic-press-machine\/\" target=\"_blank\">Spaudos ma\u0161ina<\/a><\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4789631 elementor-widget elementor-widget-image\" data-id=\"4789631\" 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=\"400\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/02\/Y32-universal-four-column-hydraulic-press.jpg\" class=\"attachment-full size-full wp-image-1746\" alt=\"Y32 universalus keturi\u0173 kolon\u0173 hidraulinis presas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/02\/Y32-universal-four-column-hydraulic-press.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/02\/Y32-universal-four-column-hydraulic-press-300x185.jpg 300w\" 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-b20ab0f elementor-widget elementor-widget-text-editor\" data-id=\"b20ab0f\" 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>Presavimo ma\u0161ina \u2013 tai liejimo ma\u0161ina, naudojama pramoniniams gaminiams formuoti sl\u0117giu, paprastai naudojant hidraulinius cilindrus, tod\u0117l dar vadinama hidrauliniais presais. Presas yra pagrindin\u0117 liejimo kompresiniu b\u016bdu ir lak\u0161tinio metalo formavimu \u012franga, kuri pagal r\u0117mo konstrukcijos form\u0105 skirstoma \u012f r\u0117min\u0119 ir kolonin\u0119 strukt\u016bras. Pagal pagrindinio sl\u0117gio alyvos cilindro pad\u0117t\u012f pres\u0105 galima suskirstyti \u012f auk\u0161tyn ir \u017eemyn spaud\u017eiam\u0105. Dideliems plastikiniams laminatams presuoti gali b\u016bti naudojamas \u017eemyn spaud\u017eiamas presas su alyvos cilindru apa\u010dioje, o \u012f vir\u0161\u0173 spaud\u017eiamas presas da\u017enai naudojamas bendr\u0173 plastikini\u0173 detali\u0173 presavimui. Pagal darbinio skys\u010dio tip\u0105 jis taip pat gali b\u016bti skirstomas \u012f hidraulinius presus, varomus hidraulin\u0117s alyvos, ir hidraulinius presus, varomus alyvos ir vandens emulsijomis.<\/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-e8e7016 elementor-widget elementor-widget-heading\" data-id=\"e8e7016\" 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\"><a href=\"https:\/\/www.shen-chong.com\/lt\/hydraulic-ironworker-machine\/\" target=\"_blank\">Gele\u017einis dirb\u0117jas<\/a><\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3aae173 elementor-widget elementor-widget-image\" data-id=\"3aae173\" 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=\"960\" height=\"720\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/02\/hydraulic-ironworker-machine.jpg\" class=\"attachment-full size-full wp-image-1768\" alt=\"hidraulin\u0117 gele\u017eies apdirbimo ma\u0161ina\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/02\/hydraulic-ironworker-machine.jpg 960w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/02\/hydraulic-ironworker-machine-300x225.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/02\/hydraulic-ironworker-machine-768x576.jpg 768w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/>\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-b648626 elementor-widget elementor-widget-text-editor\" data-id=\"b648626\" 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>Kalinio apdirbimo stakl\u0117s yra stakl\u0117s, apiman\u010dios daugyb\u0119 funkcij\u0173, toki\u0173 kaip metalo pjovimas, perforavimas, kirpimas, lenkimas ir kt. Jos privalumai yra paprastas valdymas, ma\u017eos energijos s\u0105naudos ir ma\u017eos prie\u017ei\u016bros i\u0161laidos. Tai yra pageidaujama metalo apdirbimo \u012franga \u0161iuolaikin\u0117se gamybos pramon\u0117s \u0161akose (pvz., metalurgijoje, tilt\u0173 statyboje, ry\u0161i\u0173, energetikos, kariuomen\u0117s ir kt.). Kalinio apdirbimo stakl\u0117s skirstomos \u012f dvi r\u016b\u0161is: hidraulines ir mechanines.<\/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-6042113 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"6042113\" 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-fdb3b94 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fdb3b94\" 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-a738fde\" data-id=\"a738fde\" 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-543e78f elementor-widget elementor-widget-heading\" data-id=\"543e78f\" 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\u0161\u0161\u016bkiai lenkiant lak\u0161tin\u012f metal\u0105<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ffe891 elementor-widget elementor-widget-heading\" data-id=\"1ffe891\" 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\">Springback <\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-97d53c2 elementor-widget elementor-widget-text-editor\" data-id=\"97d53c2\" 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>Kai lak\u0161tinis metalas sulenkiamas \u012f nauj\u0105 form\u0105, pa\u0161alinus lenkimo j\u0117g\u0105, jis nat\u016braliai tam tikru mastu at\u0161oka. Tai vadinama \u201eata\u0161okimu\u201c.<\/p><p>D\u0117l sulenkt\u0173 metalini\u0173 plok\u0161\u010di\u0173 gniu\u017edymo stiprumo gali atsirasti atgalinis spyruokliavimas. Lenkiant lak\u0161tin\u012f metal\u0105, viena pus\u0117 yra veikiama tempimo, o kita \u2013 gniu\u017edymo. Ta\u010diau d\u0117l didesnio med\u017eiagos gniu\u017edymo stiprumo nei tempimo stiprumo, suspausta pus\u0117 s\u0117kmingai prie\u0161inasi deformacijai ir savaime i\u0161siple\u010dia, kai j\u0117ga nebeveikia.<\/p><p>At\u0161okimas n\u0117ra pagrindin\u0117 problema, ta\u010diau tai rei\u0161kia, kad gamintojai turi kompensuoti numatom\u0105 at\u0161okim\u0105 pernelyg sulenkdami metalin\u0119 plok\u0161t\u0119. Jei metalas ty\u010dia \u0161iek tiek per daug sulenkiamas, nedidelis nat\u016bralus at\u0161okimas leis gauti teising\u0105 kamp\u0105.<\/p><p>\u017dinoma, apskai\u010diuoti lak\u0161tinio metalo spyruokliavim\u0105 toli gra\u017eu n\u0117ra paprasta, ir yra keletas kintam\u0173j\u0173, kurie gali tur\u0117ti \u012ftakos lak\u0161tinio metalo spyruokliavimo stiprumui, \u012fskaitant med\u017eiagos tip\u0105 ir specifikacijas. Be to, didesnis vidinis spindulys lems didesn\u012f spyruokliavim\u0105.<\/p><p>Metalin\u0117s plok\u0161t\u0117s spyruoklumas yra proporcingas med\u017eiagos takumo ribai ir atvirk\u0161\u010diai proporcingas jos tamprumo moduliui. Ma\u017eaanglis plienas turi ma\u017eesn\u012f spyruoklum\u0105 ir idealiai tinka didelio tikslumo ruo\u0161iniams, o daug anglies turintis plienas ir ner\u016bdijantis plienas turi didel\u012f spyruoklum\u0105. Kuo didesnis lenkimo spindulys, tuo didesnis spyruoklumas. Ma\u017eesni lenkimo spinduliai lemia didesn\u012f tikslum\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-09c3ed7 elementor-widget elementor-widget-heading\" data-id=\"09c3ed7\" 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\u0161moka<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e6491b1 elementor-widget elementor-widget-text-editor\" data-id=\"e6491b1\" 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 metalin\u0119 plok\u0161t\u0119, i\u0161orin\u0117 plok\u0161t\u0117s pus\u0117 pailg\u0117ja, tod\u0117l pakinta jos ilgis. Tai rei\u0161kia, pavyzd\u017eiui, kad bendras dviej\u0173 V formos lenkt\u0173 pusi\u0173 ilgis bus ilgesnis nei pradinis lak\u0161tin\u0117s plok\u0161t\u0117s ilgis.<\/p><p>Taigi, jei dydis pasikei\u010dia, kaip galime tiksliai suprojektuoti detal\u0119, kad ji der\u0117t\u0173 su kitais komponentais? Kaip nustatyti, kokio ilgio turi b\u016bti metalinis lak\u0161tas? Nor\u0117dami kompensuoti dyd\u017eio skirtum\u0105, turime atsi\u017evelgti \u012f lenkimo tolerancij\u0105: skirtum\u0105 tarp nesulenktos plok\u0161t\u0117s ilgio ir galutin\u0117s sulenktos plok\u0161t\u0117s kiekvienos pus\u0117s ilgi\u0173 sumos.<\/p><p>Skai\u010diuojant lenkimo tolerancij\u0105, bus atsi\u017evelgiama \u012f tokius veiksnius kaip lak\u0161tinio metalo storis, lenkimo spindulys ir lenkimo kampas. Lenkimo koeficiento skai\u010diuokl\u0117 gali b\u016bti naudojama norint apskai\u010diuoti reikiam\u0105 lak\u0161tinio metalo detali\u0173 lenkimo 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-70e21f6 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"70e21f6\" 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-18b6dcb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"18b6dcb\" 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-fba42f8\" data-id=\"fba42f8\" 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-8cd2d12 elementor-widget elementor-widget-heading\" data-id=\"8cd2d12\" 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\">Geriausia lak\u0161tinio metalo lenkimo med\u017eiaga ir matuoklis<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2fe313e elementor-widget elementor-widget-text-editor\" data-id=\"2fe313e\" 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>Kai kurios lak\u0161tinio metalo med\u017eiagos yra tinkamesn\u0117s lenkimui nei kitos. Apskritai geriausia lenkimo med\u017eiaga yra kali\u0161ka, o ne trapi.<\/p><p>Da\u017eniausiai naudojamos lak\u0161tinio metalo lenkimo med\u017eiagos yra \u0161ios:<\/p><ul><li>Ma\u017eo anglies kiekio plienas: gali b\u016bti lenkiamas bet kokioje temperat\u016broje.<\/li><li>Spyruoklinis plienas: po atkaitinimo gali lenktis.<\/li><li>Legiruotasis plienas 4140: lenkiamas po atkaitinimo.<\/li><li>Aliuminis 5052: Palyginti su kitais aliuminio lydiniais, jis pasi\u017eymi dideliu lenkiamumu.<\/li><li>Varis: Labai lankstus.<\/li><\/ul><p>Med\u017eiagos, kurias sunkiau sulenkti (nors ir ne ne\u012fmanoma), yra aliuminis 6061, titanas, \u017ealvaris ir bronza.<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-095cc29 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"095cc29\" 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-6a83a84\" data-id=\"6a83a84\" 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-1155f1a elementor-widget elementor-widget-heading\" data-id=\"1155f1a\" 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-cee5a29 elementor-widget elementor-widget-text-editor\" data-id=\"cee5a29\" 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>\u0160iame straipsnyje pateikiamos pagrindin\u0117s \u017einios apie lak\u0161tinio metalo lenkim\u0105. Lak\u0161tin\u012f metal\u0105 galima lenkti naudojant \u012fvairias ma\u0161inas, \u012fskaitant lenkimo stakles, hidraulinius presus, plok\u0161\u010di\u0173 lenkimo stakles ir metalinius apdirbimo \u012frenginius. \u201eSC Machinery\u201c yra pirmaujanti lak\u0161tinio metalo formavimo paslaug\u0173 teik\u0117ja visoje Azijoje. Si\u016blome auk\u0161tos kokyb\u0117s lenkimo paslaugas \u012fmon\u0117ms, aptarnaujan\u010dioms \u012fvairias pramon\u0117s \u0161akas.\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-64041ed elementor-widget elementor-widget-text-editor\" data-id=\"64041ed\" 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\/what-are-the-k-factor-bend-allowance-and-bend-deduction\/\" target=\"_blank\" rel=\"noopener\">Kas yra K koeficientas, lenkimo tolerancija ir lenkimo atskaita?<\/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><p><a href=\"https:\/\/www.shen-chong.com\/lt\/ultimate-guide-what-is-a-panel-bender\/\" target=\"_blank\" rel=\"noopener\">I\u0161samus vadovas: kas yra plok\u0161\u010di\u0173 lenkimo \u012frankis<\/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 Lak\u0161tinio metalo lenkimas (kartais vadinamas lak\u0161tinio metalo flan\u0161\u0173 spaudimu) yra viena i\u0161 svarbiausi\u0173 ir pla\u010diausiai naudojam\u0173 lak\u0161tinio metalo gamybos technik\u0173. Lak\u0161tinio metalo lenkimas leid\u017eia gamintojams paversti tiesi\u0105 lak\u0161tinio metalo detal\u0119 kampuota, o tai yra ekonomi\u0161kiau nei suvirinti ar tvirtinti dvi atskiras dalis. [\u2026]<\/p>","protected":false},"author":1,"featured_media":3149,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3147","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>Comprehensive Introduction:\u00a0Sheet Metal Bending - SC Machinery<\/title>\n<meta name=\"description\" content=\"Sheet metal bending can turn a sheet metal into an angled workpiece, which is one of the most widely used techniques in metal manufacturing.\" \/>\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\/lt\/comprehensive-introduction-sheet-metal-bending\/\" \/>\n<meta property=\"og:locale\" content=\"lt_LT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comprehensive Introduction:\u00a0Sheet Metal Bending - 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