{"id":3517,"date":"2024-09-23T02:16:33","date_gmt":"2024-09-23T02:16:33","guid":{"rendered":"https:\/\/www.shen-chong.com\/?p=3517"},"modified":"2024-09-23T02:47:10","modified_gmt":"2024-09-23T02:47:10","slug":"common-bending-quality-problems-and-solutions","status":"publish","type":"post","link":"https:\/\/www.shen-chong.com\/lt\/common-bending-quality-problems-and-solutions\/","title":{"rendered":"Da\u017enos lenkimo kokyb\u0117s problemos ir sprendimai"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3517\" class=\"elementor elementor-3517\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c50b28c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c50b28c\" 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-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__dea4de2\" 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__dea4de2\" 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__dea4de2\" 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-728226a elementor-widget elementor-widget-text-editor\" data-id=\"728226a\" 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>Gamybos ir apdirbimo proceso metu lenkiant lak\u0161tinio metalo detales gali kilti \u012fvairi\u0173 lenkimo kokyb\u0117s problem\u0173, kurios gali tur\u0117ti \u012ftakos gamybos efektyvumo gerinimui ir gaminio kokyb\u0117s stabilumui. \u0160iame straipsnyje i\u0161samiai apra\u0161omos da\u017eniausios lenkimo ir pjovimo kokyb\u0117s problemos gamybos praktikoje, analizuojamos problem\u0173 prie\u017eastys ir si\u016blomi sprendimai, siekiant suteikti patirties ir nuorod\u0173 pana\u0161ioms problemoms spr\u0119sti v\u0117lesn\u0117je gamybos praktikoje.<\/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-138335f elementor-widget elementor-widget-heading\" data-id=\"138335f\" 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-7f679c3 elementor-widget elementor-widget-text-editor\" data-id=\"7f679c3\" 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 procesas, kurio metu naudojama universali (arba specializuota) forma, turinti <a href=\"https:\/\/www.shen-chong.com\/lt\/cnc-press-brake-machine\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">CNC presavimo stabd\u017ei\u0173 stakl\u0117s<\/span><\/a>\u00a0lenkti metalo lak\u0161tus \u012f \u012fvairias reikiamas geometrines ruo\u0161ini\u0173 skerspj\u016bvio formas. Lenkimo proceso racionalumas tiesiogiai veikia galutin\u012f gaminio formavimo dyd\u012f ir i\u0161vaizd\u0105. Protingas lenkimo form\u0173 pasirinkimas yra labai svarbus galutiniam gamini\u0173 formavimui.<\/p><p>Faktiniame gamybos procese d\u0117l gaminio dyd\u017eio neapibr\u0117\u017etumo ir gamini\u0173 tip\u0173 \u012fvairov\u0117s, lenkiant \u0161altai apdorotus ruo\u0161inius, da\u017enai susiduriame su tokiomis problemomis kaip dyd\u017ei\u0173 interferencija ir nesutampantys formos kampai, o tai sukelia dideli\u0173 sunkum\u0173 gamybai. D\u0117l toki\u0173 veiksni\u0173 kaip gaminio dydis, forma, med\u017eiaga, forma, \u012franga ir pagalbiniai \u012frenginiai lenkimo proceso metu gali kilti \u012fvairi\u0173 kokyb\u0117s problem\u0173, turin\u010di\u0173 \u012ftakos gamybos efektyvumui ir gaminio kokyb\u0117s stabilumui. Tod\u0117l ypa\u010d svarbu spr\u0119sti \u0161ias lenkimo kokyb\u0117s problemas ir j\u0173 i\u0161vengti. \u0160iame straipsnyje daugiausia apibendrinamos ir apra\u0161omos da\u017eniausios lak\u0161tinio metalo lenkimo kokyb\u0117s problemos gamybos praktikoje, analizuojamos prie\u017eastys, remiantis gamybos patirtimi, ir si\u016blomi sprendimai.<\/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-69c41d4 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"69c41d4\" 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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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-f52a002 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f52a002\" 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-50e1a87\" data-id=\"50e1a87\" 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-3802f85 elementor-widget elementor-widget-heading\" data-id=\"3802f85\" 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\">Da\u017enos lenkimo kokyb\u0117s problemos<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3b4a400 elementor-widget elementor-widget-heading\" data-id=\"3b4a400\" 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\">Lenkimas ir \u012ftr\u016bkimas<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a92bbb2 elementor-widget elementor-widget-text-editor\" data-id=\"a92bbb2\" 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 \u012ftr\u016bkimas \u2013 tai rei\u0161kinys, kai po pjovimo, kirpimo ar \u0161tampavimo med\u017eiag\u0173 kra\u0161tuose da\u017enai atsiranda \u0161erpetojan\u010di\u0173 dali\u0173 arba ma\u017e\u0173 \u012ftr\u016bkim\u0173, o lenkimo metu lengvai susidaro \u012ftempi\u0173 koncentracija, d\u0117l kurios atsiranda \u012ftr\u016bkim\u0173. Lokomotyv\u0173 dali\u0173 U formos armat\u016bros griovelis kampuose \u012ftr\u016bksta po lenkimo, kaip parodyta 1 paveiksle.<\/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-628a8a6 elementor-widget elementor-widget-image\" data-id=\"628a8a6\" 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=\"496\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-and-cracking.jpg\" class=\"attachment-full size-full wp-image-3520\" alt=\"lenkimas ir \u012ftr\u016bkimas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-and-cracking.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-and-cracking-300x229.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-and-cracking-16x12.jpg 16w\" 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-fecf99f elementor-widget elementor-widget-text-editor\" data-id=\"fecf99f\" 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 style=\"text-align: center;\">1 pav. Lenkimas ir \u012ftr\u016bkimas<\/p><p>\u00a0<\/p><p>Pagrindin\u0117s l\u016b\u017ei\u0173 ir \u012ftr\u016bkim\u0173 prie\u017eastys yra \u0161ios:<\/p><ol><li>Ne\u0161var\u016bs \u0161erpetojantys objektai detali\u0173 kra\u0161tuose.<\/li><li>Lenkimo kryptis yra lygiagreti metalo lak\u0161t\u0173 valcavimo kryp\u010diai.<\/li><li>Lak\u0161tinio metalo lenkimo spindulys yra per ma\u017eas.<\/li><\/ol><p>Gamybos ir gamybos proceso metu b\u016btina spr\u0119sti lenkimo ir \u012ftr\u016bkim\u0173 rei\u0161kinius atsi\u017evelgiant \u012f konkre\u010dias aplinkybes. 1 paveiksle pavaizduotai lenkimo ir \u012ftr\u016bkim\u0173 problemai spr\u0119sti galima pritaikyti proceso skyli\u0173 arba proceso grioveli\u0173 prid\u0117jimo metod\u0105, kaip parodyta 2 paveiksle.<\/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-e6a6d17 elementor-widget elementor-widget-image\" data-id=\"e6a6d17\" 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=\"528\" height=\"404\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/adding-process-holes.jpg\" class=\"attachment-full size-full wp-image-3521\" alt=\"pridedant proceso skyles\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/adding-process-holes.jpg 528w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/adding-process-holes-300x230.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/adding-process-holes-16x12.jpg 16w\" sizes=\"(max-width: 528px) 100vw, 528px\" \/>\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-f177be0 elementor-widget elementor-widget-text-editor\" data-id=\"f177be0\" 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 style=\"text-align: center;\">2 pav.: Proceso skyli\u0173 prid\u0117jimas<\/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-932ee1f elementor-widget elementor-widget-heading\" data-id=\"932ee1f\" 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 trukd\u017eiai<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b9e5ab0 elementor-widget elementor-widget-text-editor\" data-id=\"b9e5ab0\" 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 interferencija daugiausia skirta gaminiams su antriniu arba didesniu lenkimu, kai lenkimo kra\u0161tas susiduria su forma ar \u012franga, d\u0117l ko negalima tinkamai suformuoti. Lenkimo interferencijai daugiausia \u012ftakos turi detali\u0173 forma, dydis ir forma, o j\u0105 daugiausia lemia pa\u010dios lenkiamos detal\u0117s konstrukcijos strukt\u016bra, pasirinkta lenkimo seka ir pasirinkta lenkimo forma. Tod\u0117l pagrindiniai sprendimai apima:<\/p><ol><li>nauj\u0173 form\u0173 gamyba arba keitimas (pvz., peili\u0173 form\u0173 lenkimas).<\/li><li>Lenkimo form\u0173 transformavimas (pvz., vietini\u0173 dali\u0173 mechaninis apdirbimas).<\/li><li>Sureguliuokite lenkimo sek\u0105 (pvz., atvirk\u0161tin\u0117s deformacijos metod\u0105).<\/li><li>Pakeiskite detali\u0173 lenkimo dyd\u012f. Pavyzd\u017eiui, \u0160anchajaus metro linijos 18 va\u017eiuokl\u0117s pried\u0173 kanalo montavimo laikiklis pagamintas i\u0161 U formos profiliuoto plieno, kurio vidutinis plotis yra 100 mm, briaunos auk\u0161tis \u2013 80 mm, o lenkimo spindulys \u2013 15 mm. Imituokite lenkim\u0105, remdamiesi dirbtuv\u0117se esan\u010diomis formomis, kad sukurtum\u0117te lenkimo interferencij\u0105.<\/li><\/ol><p>\u00a0<\/p><p>Reaguojant \u012f \u0161\u012f interferencin\u012f rei\u0161kin\u012f, vir\u0161utinei lenkimo formai (\u017er. 3 pav.) buvo pritaikytas vietinis mechaninis apdorojimo metodas. Esamos R15 mm tiesaus peilio vir\u0161utinio formavimo formos (L = 800 mm) vidurio linijoje buvo i\u0161pjauta 140 mm \u00d7 48 mm \u012fpjova (\u017er. 4 pav.). \u012epjovos pad\u0117tis buvo nustatyta derinant j\u0105 su imituota lenkimo interferencine pad\u0117timi, nepaveikiant jos pradin\u0117s funkcijos. Modifikavus lenkimo form\u0105, lenkimo interferencin\u0117s problemos buvo s\u0117kmingai i\u0161spr\u0119stos.<\/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-b6e692e elementor-widget elementor-widget-image\" data-id=\"b6e692e\" 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=\"377\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-after-upper-mold-processing.jpg\" class=\"attachment-full size-full wp-image-3523\" alt=\"lenkimas po vir\u0161utin\u0117s formos apdorojimo\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-after-upper-mold-processing.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-after-upper-mold-processing-300x174.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-after-upper-mold-processing-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-2404924 elementor-widget elementor-widget-text-editor\" data-id=\"2404924\" 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 style=\"text-align: center;\">3 pav.: Lenkimas po vir\u0161utin\u0117s formos apdorojimo<\/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-b102e52 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b102e52\" 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-87646be\" data-id=\"87646be\" 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-39651d0 elementor-widget elementor-widget-image\" data-id=\"39651d0\" 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=\"250\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-interference-determining-the-processing-area.jpg\" class=\"attachment-full size-full wp-image-3524\" alt=\"lenkimo interferencija, nustatant apdorojimo plot\u0105\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-interference-determining-the-processing-area.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-interference-determining-the-processing-area-300x115.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-interference-determining-the-processing-area-18x7.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-3b3e2d9 elementor-widget elementor-widget-text-editor\" data-id=\"3b3e2d9\" 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 style=\"text-align: center;\">4 pav.: Lenkimo interferencija, apdirbimo ploto nustatymas<\/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-9f18958 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9f18958\" 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-a179511\" data-id=\"a179511\" 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-4f20412 elementor-widget elementor-widget-heading\" data-id=\"4f20412\" 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 \u012fdubimas<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a13b181 elementor-widget elementor-widget-text-editor\" data-id=\"a13b181\" 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 \u012fdubimas yra rei\u0161kinys, kai laipsni\u0161kai lie\u010diant lak\u0161tin\u012f metal\u0105 su \u012fgaubto liejimo formos V formos griovelio vidiniu pavir\u0161iumi, atsiranda trintis, d\u0117l kurios lak\u0161tinio metalo pavir\u0161iuje lieka akivaizd\u017ei\u0173 \u017eymi\u0173. Kai kuriems priedams, kuriems keliami auk\u0161ti pavir\u0161iaus reikalavimai, tradicinis lenkimas negali atitikti gaminio kokyb\u0117s reikalavim\u0173, o lenkimo \u012fdubimas (\u017er. 5 pav.) negali atitikti kito proceso reikalavim\u0173.<\/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-0a7475e elementor-widget elementor-widget-image\" data-id=\"0a7475e\" 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=\"374\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-indentation.jpg\" class=\"attachment-full size-full wp-image-3525\" alt=\"lenkimo \u012fdubimas\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-indentation.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-indentation-300x173.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-indentation-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-1e7f0c8 elementor-widget elementor-widget-text-editor\" data-id=\"1e7f0c8\" 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 style=\"text-align: center;\">5 pav.: Lenkimo \u012fdubimas<\/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-d9ca80d elementor-widget elementor-widget-text-editor\" data-id=\"d9ca80d\" 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 \u012fspaud\u0105 daugiausia lemia lak\u0161tinio metalo kietumas ir apatin\u0117s formos strukt\u016bra. Kuo didesnis lak\u0161to kietumas, tuo didesnis jo atsparumas plastinei deformacijai, tod\u0117l med\u017eiagai sunkiau deformuotis plasti\u0161kai ir lengviau susidaryti \u012fspaudui. Da\u017eniausiai naudojam\u0173 lak\u0161tini\u0173 med\u017eiag\u0173 lenkimo \u012fspaudo tikimyb\u0117 yra: aliuminis &gt; anglinis plienas &gt; ner\u016bdijantis plienas. Kuo didesnis lenkimo matricos angos plotis, tuo didesnis lenkimo \u012fspaudo plotis ir kuo ma\u017eesnis \u012fspaudo gylis. Kuo didesnis apatin\u0117s formos angos peties R dydis, tuo ma\u017eesnis \u012fspaudo gylis.<\/p><p>Be med\u017eiagos kietumo ir apatin\u0117s formos strukt\u016bros pagerinimo, \u012fspaudimo neturin\u010dios gumin\u0117s pagalv\u0117l\u0117s ir rutulinio tipo lenkimo apatin\u0117s formos taip pat gali b\u016bti naudojamos lenkimo \u012fspaudimo problemai i\u0161spr\u0119sti. \u012espaudimo neturin\u010dios gumin\u0117s pagalv\u0117l\u0117s daugiausia remiasi fizine izoliacija, siekiant suma\u017einti \u012fspaudimo atsiradim\u0105, kaip parodyta 6 paveiksle. Rutulinio tipo lenkimo matrica tradicin\u0117ms lenkimo formoms reikaling\u0105 ekstruzijos trint\u012f paver\u010dia ried\u0117jimo trintimi, suma\u017eindama trint\u012f ir gaminio pa\u017eeidimus, kaip parodyta 7 paveiksle.<\/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-6d05321 elementor-widget elementor-widget-image\" data-id=\"6d05321\" 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=\"350\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/anti-indentation-rubber-pad.jpg\" class=\"attachment-full size-full wp-image-3526\" alt=\"guminis padas nuo \u012fspaudimo\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/anti-indentation-rubber-pad.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/anti-indentation-rubber-pad-300x162.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/anti-indentation-rubber-pad-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-aeb0ea2 elementor-widget elementor-widget-text-editor\" data-id=\"aeb0ea2\" 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 style=\"text-align: center;\">6 pav.: \u012espaudimui atsparus guminis padas<\/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-c9fe4f3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c9fe4f3\" 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-fa70ec1\" data-id=\"fa70ec1\" 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-daf42ac elementor-widget elementor-widget-text-editor\" data-id=\"daf42ac\" 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 style=\"text-align: center;\">7 pav.: Apatin\u0117s formos rutulinis lenkimas<\/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-ad37e9d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ad37e9d\" 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-0373a73\" data-id=\"0373a73\" 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-7a04f86 elementor-widget elementor-widget-heading\" data-id=\"7a04f86\" 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 spyruokl\u0117<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a906c0d elementor-widget elementor-widget-image\" data-id=\"a906c0d\" 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=\"541\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/ball-bending-lower-mold.jpg\" class=\"attachment-full size-full wp-image-3527\" alt=\"rutulinis lenkimo apatinis pel\u0117sis\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/ball-bending-lower-mold.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/ball-bending-lower-mold-300x250.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/ball-bending-lower-mold-14x12.jpg 14w\" 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-ca4f8d1 elementor-widget elementor-widget-text-editor\" data-id=\"ca4f8d1\" 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 proceso metu med\u017eiagos vienu metu deformuojasi plasti\u0161kai ir elastingai. Kai ruo\u0161inys palieka lenkimo form\u0105, vyksta elastingas atsigavimas, d\u0117l kurio sulenktos detal\u0117s forma ir dydis neatitinka apkrovos, tai vadinama lenkimo at\u0161okiu. <a href=\"https:\/\/www.shen-chong.com\/lt\/understanding-springback-in-sheet-metal-bending\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #3366ff;\">Lenkimo spyruoklin\u0117 atrama<\/span><\/a><strong><b>\u00a0<\/b><\/strong>yra viena i\u0161 pagrindini\u0173 nepakankamo lenkimo kampo prie\u017eas\u010di\u0173. Pagrindiniai veiksniai, darantys \u012ftak\u0105 at\u0161okimui, yra lak\u0161tinio metalo mechanin\u0117s savyb\u0117s ir lenkimo deformacijos s\u0105lygos. At\u0161okimo vert\u0117s dydis yra tiesiogiai proporcingas lak\u0161tinio metalo takumo ribai ir atvirk\u0161\u010diai proporcingas tamprumo moduliui. Kuo ma\u017eesnis santykinis lenkimo spindulys (lenkimo spindulio ir lak\u0161to storio santykis R\/t), tuo ma\u017eesn\u0117 lenkimo at\u0161okimo vert\u0117. Lenkimo dalies forma taip pat turi \u012ftakos lenkimo at\u0161okimo vert\u0117s dyd\u017eiui. Paprastai U formos dalys turi ma\u017eesn\u0119 at\u0161okimo vert\u0119 nei V formos dalys.<\/p><p>Pagrindinis lenkimo spyruokl\u0117s \u012fveikimo b\u016bdas yra kampo kompensavimo metodas, kai paprastai lenkimo formoje sukuriamas nuolydis, lygus spyruokl\u0117s kampui, taip efektyviai subalansuojant lenkimo spyruokl\u0117s poveik\u012f. Kaip parodyta 8 paveiksle, naudojant lenkimo form\u0105 su 80\u00b0 nuolyd\u017eiu, ruo\u0161inius galima skland\u017eiai sulenkti 90\u00b0 lenkimo kampu.<\/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-a39d395 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a39d395\" 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-0cae257\" data-id=\"0cae257\" 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-61d0c63 elementor-widget elementor-widget-image\" data-id=\"61d0c63\" 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=\"404\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-springback-compensation.jpg\" class=\"attachment-full size-full wp-image-3528\" alt=\"lenkimo spyruoklinio kompensavimo\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-springback-compensation.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-springback-compensation-300x186.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/bending-springback-compensation-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-47d9b36 elementor-widget elementor-widget-text-editor\" data-id=\"47d9b36\" 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 style=\"text-align: center;\">8 pav.: Lenkimo spyruoklinio atatrankos kompensavimas<\/p><p>D\u0117l daugelio veiksni\u0173, turin\u010di\u0173 \u012ftakos lenkimo spyruoklei, labai sunku tiksliai apskai\u010diuoti spyruokl\u0117s vert\u0119. Veiksmingi metodai siekiant u\u017etikrinti gaminio kokyb\u0119 yra bandym\u0173 korekcija formoje ir patirties kaupimas, spyruokl\u0117s d\u0117snio \u012fvaldymas, tinkamo kompensavimo taikymas ir priemoni\u0173 imasi spyruoklei \u012fveikti formos konstrukcijoje ir kiti aspektai.<\/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-a5fc1e8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a5fc1e8\" 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-1ca75a0\" data-id=\"1ca75a0\" 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-c83c5b5 elementor-widget elementor-widget-heading\" data-id=\"c83c5b5\" 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 slydimo med\u017eiaga<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc2c518 elementor-widget elementor-widget-text-editor\" data-id=\"fc2c518\" 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 slydimas rei\u0161kia rei\u0161kin\u012f, kai lenkiamas ruo\u0161inys neturi pilno ir veiksmingo atramos ta\u0161ko apatiniame \u0161tampo griovelyje, d\u0117l to ruo\u0161inys link\u0119s slysti ir lenkimo negalima tinkamai pozicionuoti.<\/p><p>Pagrindin\u0117s stumdom\u0173 med\u017eiag\u0173 lenkimo prie\u017eastys yra \u0161ios.<\/p><ol><li>Kai apatin\u0117s formos plotis yra per didelis, o lenkimo dydis yra ma\u017eesnis nei pus\u0117 apatin\u0117s formos plo\u010dio, atsiranda slydimas.<\/li><li>Kai ruo\u0161in\u012f veikia jo forma ir dydis, o \u0161ablono pad\u0117ties nustatymo dydis yra per trumpas arba n\u0117ra efektyvaus \u0161ablono pad\u0117ties nustatymo kra\u0161to, gali atsirasti lenkimo ir slydimo rei\u0161kiniai.<\/li><\/ol><p>\u00a0<\/p><p>Yra du pagrindiniai b\u016bdai, kaip i\u0161spr\u0119sti med\u017eiag\u0173 lenkimo ir slydimo problem\u0105.<\/p><ul><li>1 metodas. Pasirinkite tinkam\u0105 lenkimo matric\u0105, paprastai matricos plot\u012f, kuris yra 4\u20136 kartus didesnis u\u017e lenkimui skirtos plok\u0161t\u0117s stor\u012f.<\/li><li>2 metodas. Naudojant \u0161ablon\u0173 arba proceso briaun\u0173 prid\u0117jimo metod\u0105, galima i\u0161spr\u0119sti med\u017eiagos slydimo problem\u0105, kuri\u0105 sukelia netinkamas lenkimo metu atliekamas pozicionavimas. Paprastai lenkimas atliekamas tiesia ruo\u0161inio briauna, tod\u0117l norint nustatyti pad\u0117t\u012f, reikia, kad du galiniai pavir\u0161iai liest\u0173si su lenkimo \u0161ablonu. Ta\u010diau realiame gamybos procese pasitaiko situacij\u0173, kai gaminio \u0161ablono briauna yra per trumpa arba n\u0117ra efektyvaus pozicionavimo briaunos, tod\u0117l ne\u012fmanoma visi\u0161kai nustatyti lenkimo pad\u0117ties. Sprendimai yra \u0161ie:<\/li><\/ul><p>\u00a0<\/p><ol><li>Kai plok\u0161t\u0117s storis t \u2264 6 mm, pozicionavimui pridedamas proceso kra\u0161tas, kurio pad\u0117tis turi b\u016bti lygi su priedo galutiniu kra\u0161tu. Po lenkimo operacijos jungtis tur\u0117t\u0173 b\u016bti pjaustoma lazeriu, kad b\u016bt\u0173 lengviau \u0161lifuoti ir pa\u0161alinti.<\/li><li>Kai plok\u0161t\u0117s storis t yra didesnis nei 6 mm, galima i\u0161pjauti \u0161ablon\u0105 pozicionavimui, o \u0161ablono storis gali b\u016bti lygus arba \u0161iek tiek ma\u017eesnis u\u017e ruo\u0161inio stor\u012f. Abu pozicionavimo metodai gali i\u0161spr\u0119sti med\u017eiag\u0173 lenkimo ir slydimo problem\u0105.<\/li><\/ol>\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-8a55c1c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8a55c1c\" 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-21dad55\" data-id=\"21dad55\" 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-c95b1a7 elementor-widget elementor-widget-heading\" data-id=\"c95b1a7\" 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\">Didelis lanko lenkimas<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0739f51 elementor-widget elementor-widget-text-editor\" data-id=\"0739f51\" 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>Gamybos ir apdirbimo procese da\u017enai susiduriama su situacijomis, kai ruo\u0161inio lenkimo spindulys yra didelis, o dirbtuv\u0117se n\u0117ra atitinkamos didelio lanko formos. Tokiu atveju vientis\u0173 formavimo form\u0173 arba dideli\u0173 lanko form\u0173 gamybos ciklas yra ilgesnis, o kaina per didel\u0117, o ma\u017eo lanko daugiapakopio lenkimo formavimo technologijos naudojimas yra pigesnis ir platesnio pritaikymo. Pavyzd\u017eiui, \u201eSuper Bus 2.0\u201c projekte yra komponentas su viena vertikalia plok\u0161te ir trimis vertikaliomis plok\u0161t\u0117mis, kuri\u0173 lenkimo spindulys yra 125 mm, o lenkimo kampas \u2013 90 \u00b0, kaip parodyta 9 paveiksle. D\u0117l atitinkam\u0173 lenkimo form\u0173 tr\u016bkumo dirbtuv\u0117se galima naudoti kelis lenkimo procesus. Pirmiausia, naudojant 3D programin\u0119 \u012frang\u0105 buvo sumodeliuotas i\u0161d\u0117stymas ir lenkimas R125 mm pad\u0117tyje. Po modeliavimo programin\u0117 \u012franga automati\u0161kai i\u0161skleid\u0117 2D plok\u0161\u010dios plok\u0161t\u0117s diagram\u0105. \u012evedus \u012f programin\u0119 \u012frang\u0105 45 mm lenkimo spindul\u012f ir palyginus kelis duomen\u0173 \u012f\u0117jimus, buvo patvirtinta, kad apskrito lanko segment\u0105 galima u\u017etikrinti sulenkiant 8 pj\u016bviais. Tada kiekvienam pj\u016bviui buvo sugeneruoti lenkimo duomenys (lenkimo kampas, lenkimo linijos pad\u0117ties ilgis), kaip parodyta 10 paveiksle. Galiausiai, remiantis lenkimo duomenimis, buvo atliktas bandomasis lenkimas vietoje, kaip parodyta 11 paveiksle.<\/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-606ed60 elementor-widget elementor-widget-image\" data-id=\"606ed60\" 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=\"435\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/arc-shaped-workpieces.jpg\" class=\"attachment-full size-full wp-image-3529\" alt=\"lanko formos ruo\u0161iniai\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/arc-shaped-workpieces.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/arc-shaped-workpieces-300x201.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/arc-shaped-workpieces-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-9acf25a elementor-widget elementor-widget-text-editor\" data-id=\"9acf25a\" 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 style=\"text-align: center;\">9 pav.: Lanko formos ruo\u0161iniai<\/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-c422e09 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c422e09\" 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-c1d5c11\" data-id=\"c1d5c11\" 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-c5d9531 elementor-widget elementor-widget-image\" data-id=\"c5d9531\" 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=\"579\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/unfolding-diagram-and-bending-line-position.jpg\" class=\"attachment-full size-full wp-image-3530\" alt=\"i\u0161skleidimo schema ir lenkimo linijos pad\u0117tis\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/unfolding-diagram-and-bending-line-position.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/unfolding-diagram-and-bending-line-position-300x267.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/unfolding-diagram-and-bending-line-position-13x12.jpg 13w\" 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-92a80cf elementor-widget elementor-widget-text-editor\" data-id=\"92a80cf\" 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 style=\"text-align: center;\">10 pav.: I\u0161skleidimo schema ir lenkimo linijos pad\u0117tis<\/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-393cbcb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"393cbcb\" 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-4f18bcf\" data-id=\"4f18bcf\" 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-df8ea84 elementor-widget elementor-widget-image\" data-id=\"df8ea84\" 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=\"870\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/on-site-trial-mold-bending.jpg\" class=\"attachment-full size-full wp-image-3531\" alt=\"bandomojo liejimo lenkimo vietoje\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/on-site-trial-mold-bending.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/on-site-trial-mold-bending-224x300.jpg 224w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/on-site-trial-mold-bending-9x12.jpg 9w\" 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-cf3b8a5 elementor-widget elementor-widget-text-editor\" data-id=\"cf3b8a5\" 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 style=\"text-align: center;\">11 pav.: Bandomasis liejimo formos lenkimas vietoje<\/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-3fb0a2a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3fb0a2a\" 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-8c2b675\" data-id=\"8c2b675\" 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-4793c8c elementor-widget elementor-widget-heading\" data-id=\"4793c8c\" 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\u0161ky\u0161a<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-37296fd elementor-widget elementor-widget-text-editor\" data-id=\"37296fd\" 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\u0161siki\u0161imas rei\u0161kia rei\u0161kin\u012f, kai d\u0117l med\u017eiagos suspaudimo metalin\u0117 med\u017eiaga i\u0161siki\u0161a i\u0161 abiej\u0173 sulenkto lak\u0161tinio metalo kampo pusi\u0173, tod\u0117l plotis padid\u0117ja iki didesnio nei pradinis dydis. Lenkimo i\u0161siki\u0161imo dydis paprastai susij\u0119s su pried\u0173 plok\u0161t\u0117s storiu ir lenkimo spinduliu. Kuo storesn\u0117 plok\u0161t\u0117, tuo ma\u017eesnis lenkimo spindulys ir tuo labiau pastebimas i\u0161siki\u0161imas.<\/p><p>Siekiant i\u0161vengti \u0161ios lenkimo kokyb\u0117s problemos, brai\u017eant lenkimo i\u0161skleidimo diagram\u0105, abiejose lenkimo linijos pus\u0117se galima prid\u0117ti proceso \u012fpjovas, kaip parodyta 12 paveiksle. Proceso tarpas paprastai yra apskritimo lanko formos, kurio skersmuo yra bent 1,5 karto didesnis u\u017e ruo\u0161inio stor\u012f, siekiant kompensuoti lenkimo i\u0161ky\u0161\u0105 ir efektyviai i\u0161spr\u0119sti lenkimo i\u0161ky\u0161os problem\u0105. Ruo\u0161iniams, kurie jau turi lenkimo i\u0161ky\u0161as, apdorojimui paprastai naudojamas rankinis poliravimas.<\/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-6f7d5ac elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6f7d5ac\" 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-94a3f5e\" data-id=\"94a3f5e\" 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-804da69 elementor-widget elementor-widget-image\" data-id=\"804da69\" 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=\"374\" src=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/process-gap.jpg\" class=\"attachment-full size-full wp-image-3532\" alt=\"proceso spraga\" srcset=\"https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/process-gap.jpg 650w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/process-gap-300x173.jpg 300w, https:\/\/www.shen-chong.com\/wp-content\/uploads\/2024\/09\/process-gap-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-acaac98 elementor-widget elementor-widget-text-editor\" data-id=\"acaac98\" 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 style=\"text-align: center;\">12 pav.: Proceso spraga<\/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-e6973e6 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"e6973e6\" 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-4f92c87 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4f92c87\" 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-bc9b3ec\" data-id=\"bc9b3ec\" 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-20cb8f4 elementor-widget elementor-widget-heading\" data-id=\"20cb8f4\" 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-36668e0 elementor-widget elementor-widget-text-editor\" data-id=\"36668e0\" 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>Reik\u0117t\u0173 pa\u017eym\u0117ti, kad auk\u0161\u010diau i\u0161vardytos da\u017eniausios lenkimo ir pjovimo kokyb\u0117s problemos gamybos praktikoje neatsi\u017evelgia \u012f \u017emogi\u0161k\u0173j\u0173 ar \u012frangos veiksni\u0173 \u012ftak\u0105 (pvz., neteisingus i\u0161skleidimo matmenis, neteising\u0105 lenkimo parametr\u0173 pasirinkim\u0105 ir \u012frangos sen\u0117jim\u0105). Gamybos praktikoje tinkami lenkimo proceso parametrai tur\u0117t\u0173 b\u016bti parenkami atsi\u017evelgiant \u012f \u012frangos na\u0161um\u0105, gaminio dyd\u012f ir med\u017eiagos savybes, ir grie\u017etai vykdomi pagal eksploatavimo specifikacijas. Turime ne tik i\u0161samiai apsvarstyti \u012fvairi\u0173 veiksni\u0173, toki\u0173 kaip projekto eiga, kaina ir kokyb\u0117, poveik\u012f ir priimti tinkamus metodus lenkimo kokyb\u0117s problemoms spr\u0119sti, bet ir sukaupti patirties, kad gal\u0117tume numatyti lenkimo problem\u0173 atsiradim\u0105 ir poveik\u012f proceso analiz\u0117s etape ir imtis tikslini\u0173 priemoni\u0173 joms i\u0161vengti. \u0160iame straipsnyje i\u0161vardytos kelios da\u017eniausios lenkimo kokyb\u0117s problemos ir j\u0173 sprendimai, tikintis pateikti tam tikr\u0173 nuorod\u0173 ir rekomendacij\u0173 pramon\u0117s kolegoms.<\/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-0706f84 elementor-widget elementor-widget-text-editor\" data-id=\"0706f84\" 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>Skaitykite daugiau:<\/strong><\/p><p><a href=\"https:\/\/www.shen-chong.com\/lt\/press-brake\/\" target=\"_blank\" rel=\"noopener\">Hidraulinis presavimo stabd\u017ei\u0173 aparatas<\/a><\/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\/comprehensive-introduction-sheet-metal-bending\/\" target=\"_blank\" rel=\"noopener\">I\u0161samus \u012fvadas: Lak\u0161tinio metalo lenkimas<\/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 Gamybos ir gamybos proceso metu lenkiant lak\u0161tinio metalo detales gali kilti \u012fvairi\u0173 lenkimo kokyb\u0117s problem\u0173, kurios gali tur\u0117ti \u012ftakos gamybos efektyvumo gerinimui ir gaminio kokyb\u0117s stabilumui. \u0160iame straipsnyje i\u0161samiai apra\u0161omos da\u017eniausios lenkimo ir pjovimo kokyb\u0117s problemos gamybos praktikoje, analizuojamos problem\u0173 prie\u017eastys ir si\u016blomi sprendimai, kaip u\u017etikrinti [\u2026]<\/p>","protected":false},"author":1,"featured_media":3518,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3517","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 - 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