{"id":17453,"date":"2022-01-20T08:54:11","date_gmt":"2022-01-20T08:54:11","guid":{"rendered":"https:\/\/tooling.harsle.com\/?p=17453"},"modified":"2022-01-24T08:09:22","modified_gmt":"2022-01-24T08:09:22","slug":"the-materials-of-bending-tooling-mystery-revealed","status":"publish","type":"post","link":"https:\/\/tooling.harsle.com\/cs\/the-materials-of-bending-tooling-mystery-revealed\/","title":{"rendered":"Z\u00e1hada materi\u00e1l\u016f oh\u00fdbac\u00edch n\u00e1stroj\u016f odhalena"},"content":{"rendered":"<p class=\"yoast-reading-time__wrapper\"><span class=\"yoast-reading-time__icon\"><\/span><span class=\"yoast-reading-time__descriptive-text\">Odhadovan\u00e1 doba \u010dten\u00ed:  <\/span><span class=\"yoast-reading-time__reading-time\">7<\/span><span class=\"yoast-reading-time__time-unit\"> minut<\/span><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Automatick\u00e1 oh\u00fdba\u010dka kabelov\u00fdch \u017elab\u016f, CNC ohra\u0148ovac\u00ed lis pro linku na v\u00fdrobu kabelov\u00fdch most\u016f\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/RuwlQbzMmzs?list=PLBJ9_Wl_KHY9gqM8bGEvO52WkyVcv_FUe\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-harsle-bending-division wp-block-embed-harsle-bending-division wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/bending.harsle.com\/product\/110t-3200-cnc-hydraulic-press-brake-da58t-door-frame-bending\/\n<\/div><\/figure>\n\n\n\n<p>Existuje mnoho druh\u016f materi\u00e1l\u016f pro v\u00fdrobu <a href=\"https:\/\/bending.harsle.com\/product\/100t-3200-with-da66t-cnc-81-axis-sheet-metal-brake-bending\/\" target=\"_blank\" rel=\"noopener\">oh\u00fdba\u010dka<\/a> n\u00e1stroje, v\u010detn\u011b oceli, slinut\u00e9ho karbidu, slinut\u00e9ho karbidu v\u00e1zan\u00e9ho ocel\u00ed, slitiny na b\u00e1zi zinku, slitiny s n\u00edzkou teplotou t\u00e1n\u00ed, hlin\u00edkov\u00e9ho bronzu, polymern\u00edch materi\u00e1l\u016f a tak d\u00e1le. V sou\u010dasnosti je v\u011bt\u0161ina materi\u00e1l\u016f pou\u017e\u00edvan\u00fdch k v\u00fdrob\u011b lisovac\u00edch a oh\u00fdbac\u00edch stroj\u016f ocel. Mezi b\u011b\u017en\u011b pou\u017e\u00edvan\u00e9 materi\u00e1ly pro pracovn\u00ed \u010d\u00e1sti forem oh\u00fdbac\u00edch stroj\u016f pat\u0159\u00ed: uhl\u00edkov\u00e1 n\u00e1strojov\u00e1 ocel, n\u00edzkolegovan\u00e1 n\u00e1strojov\u00e1 ocel, vysoce uhl\u00edkov\u00e1 vysoce nebo st\u0159edn\u011b chromov\u00e1 n\u00e1strojov\u00e1 ocel, st\u0159edn\u011b uhl\u00edkov\u00e1 legovan\u00e1 ocel, rychlo\u0159ezn\u00e1 ocel, z\u00e1kladn\u00ed ocel, slinut\u00fd karbid, ocel- lepen\u00fd slinut\u00fd karbid atd.<\/p>\n\n\n\n<p id=\"h-the-following-introduces-several-material-knowledge\"><strong>N\u00ed\u017ee uv\u00e1d\u00edme n\u011bkolik materi\u00e1lov\u00fdch znalost\u00ed:<\/strong>\u2002\u2002\u2002<\/p>\n\n\n\n<p id=\"h-1-carbon-tool-steel\"><strong>1.<\/strong>&nbsp;<strong>Uhl\u00edk <\/strong><strong>T<\/strong><strong>ool <\/strong><strong>S<\/strong><strong>ocel<\/strong>\u2002\u2002\u2002\u2002<\/p>\n\n\n\n<p id=\"h-the-most-commonly-used-carbon-tool-steels-in-bending-machine-molds-are-t8a-t10a-etc-which-have-the-advantages-of-good-processing-performance-and-low-price-however-the-harden-ability-and-red-hardness-are-poor-the-heat-treatment-deformation-is-large-and-the-load-bearing-capacity-is-low\">Nej\u010dast\u011bji pou\u017e\u00edvan\u00e9 uhl\u00edkov\u00e9 n\u00e1strojov\u00e9 oceli ve form\u00e1ch oh\u00fdbac\u00edch stroj\u016f jsou T8A, T10A atd., kter\u00e9 maj\u00ed v\u00fdhody dobr\u00e9ho zpracovatelsk\u00e9ho v\u00fdkonu a n\u00edzk\u00e9 ceny. Schopnost kalen\u00ed a \u010derven\u00e1 tvrdost jsou v\u0161ak \u0161patn\u00e9, deformace tepeln\u00e9ho zpracov\u00e1n\u00ed je velk\u00e1 a \u00fanosnost je n\u00edzk\u00e1.<\/p>\n\n\n\n<p><strong>2<\/strong><strong>. N\u00edzk\u00fd <\/strong><strong>A<\/strong><strong>lloy <\/strong><strong>T<\/strong><strong>ool <\/strong><strong>S<\/strong><strong>ocel <\/strong>\u2002\u2002\u2002\u2002\u2002<\/p>\n\n\n\n<p>N\u00edzkolegovan\u00e1 n\u00e1strojov\u00e1 ocel je zalo\u017eena na uhl\u00edkov\u00e9 n\u00e1strojov\u00e9 oceli s odpov\u00eddaj\u00edc\u00edm mno\u017estv\u00edm leguj\u00edc\u00edch prvk\u016f. Ve srovn\u00e1n\u00ed s uhl\u00edkovou n\u00e1strojovou ocel\u00ed sni\u017euje deformaci kalen\u00edm a tendenci k prask\u00e1n\u00ed, zlep\u0161uje schopnost kalen\u00ed oceli a m\u00e1 lep\u0161\u00ed odolnost proti opot\u0159eben\u00ed. Mezi n\u00edzkolegovan\u00e9 oceli pou\u017e\u00edvan\u00e9 p\u0159i v\u00fdrob\u011b forem pro oh\u00fdbac\u00ed stroje pat\u0159\u00ed CrWMn, 9Mn2V, 7CrSiMnMoV (k\u00f3d CH-1), 6CrNiSiMnMoV (k\u00f3d GD) a tak d\u00e1le.<\/p>\n\n\n\n<p><strong>3<\/strong><strong>.<\/strong>\u2002<strong>Vysok\u00fd <\/strong><strong>C<\/strong><strong>arbon a <\/strong><strong>H<\/strong><strong>vysok\u00e1 <\/strong><strong>C<\/strong><strong>hromu <\/strong><strong>T<\/strong><strong>ool <\/strong><strong>S<\/strong><strong>ocel<\/strong>\u2002\u2002\u2002<\/p>\n\n\n\n<p>B\u011b\u017en\u011b pou\u017e\u00edvan\u00e9 n\u00e1strojov\u00e9 oceli s vysok\u00fdm obsahem uhl\u00edku a vysok\u00fdm obsahem chromu jsou Cr12, Cr12MoV, Cr12Mo1V1 (k\u00f3d D2), maj\u00ed dobrou schopnost kalen\u00ed, schopnost kalen\u00ed a odolnost proti opot\u0159eben\u00ed, deformace tepeln\u00e9ho zpracov\u00e1n\u00ed je velmi mal\u00e1, pro vysokou odolnost proti opot\u0159eben\u00ed a mikrodeformaci oh\u00fdbac\u00ed strojn\u00ed forma Ocel , nosnost je na druh\u00e9m m\u00edst\u011b za rychlo\u0159eznou ocel\u00ed. Nicm\u00e9n\u011b,<\/p>\n\n\n\n<p>segregace karbid\u016f je z\u00e1va\u017en\u00e1 a je nutn\u00e9 prov\u00e1d\u011bt opakovan\u00e9 p\u011bchov\u00e1n\u00ed (axi\u00e1ln\u00ed p\u011bchov\u00e1n\u00ed, radi\u00e1ln\u00ed p\u011bchov\u00e1n\u00ed) a kov\u00e1n\u00ed, aby se sn\u00ed\u017eila nerovnom\u011brnost karbid\u016f a zlep\u0161ila se v\u00fdkonnost.<\/p>\n\n\n\n<p><strong>4<\/strong><strong>. Vysok\u00fd <\/strong><strong>C<\/strong><strong>arbon <\/strong><strong>M<\/strong><strong>edium <\/strong><strong>C<\/strong><strong>hromu <\/strong><strong>T<\/strong><strong>ool <\/strong><strong>S<\/strong><strong>ocel<\/strong>\u2002\u2002\u2002\u2002<\/p>\n\n\n\n<p>Mezi vysokouhl\u00edkov\u00e9 st\u0159edn\u011bchromov\u00e9 n\u00e1strojov\u00e9 oceli pou\u017e\u00edvan\u00e9 pro oh\u00fdbac\u00ed strojn\u00ed formy pat\u0159\u00ed Cr4W2MoV, Cr6WV, Cr5MoV atd. Maj\u00ed n\u00edzk\u00fd obsah chr\u00f3mu, m\u00e9n\u011b eutektick\u00fdch karbid\u016f, rovnom\u011brn\u00e9 rozlo\u017een\u00ed karbid\u016f, malou deformaci p\u0159i tepeln\u00e9m zpracov\u00e1n\u00ed a dobrou kalitelnost. A rozm\u011brov\u00e1 stabilita. Ve srovn\u00e1n\u00ed s ocel\u00ed s vysok\u00fdm obsahem uhl\u00edku a vysok\u00fdm obsahem chr\u00f3mu s relativn\u011b v\u00e1\u017enou segregac\u00ed karbid\u016f je v\u00fdkon lep\u0161\u00ed.<\/p>\n\n\n\n<p><strong>5<\/strong><strong>. Vysok\u00e1 rychlost <\/strong><strong>S<\/strong><strong>ocel<\/strong>\u2002\u2002\u2002\u2002<\/p>\n\n\n\n<p>Rychlo\u0159ezn\u00e1 ocel m\u00e1 ze z\u00e1pustkov\u00fdch ocel\u00ed pro oh\u00fdba\u010dky nejvy\u0161\u0161\u00ed tvrdost, odolnost proti opot\u0159eben\u00ed a pevnost v tlaku a m\u00e1 vysokou \u00fanosnost. B\u011b\u017en\u011b pou\u017e\u00edvan\u00e9 v <a href=\"https:\/\/bending.harsle.com\/ko\/product\/100t-3200-electro-hydraulic-servo-cnc-bending-machine-with-da66t\/\" target=\"_blank\" rel=\"noopener\">oh\u00fdba\u010dka <\/a>formy jsou W18Cr4V (k\u00f3d 8-4-1) a W6Mo5 Cr4V2 (k\u00f3d 6-5-4-2, americk\u00e1 zna\u010dka M2) s ni\u017e\u0161\u00edm obsahem wolframu, stejn\u011b jako produkty na redukci uhl\u00edku a uhl\u00edku vyvinut\u00e9 pro zlep\u0161en\u00ed hou\u017eevnatosti. Vanadov\u00e1 rychlo\u0159ezn\u00e1 ocel 6W6Mo5 Cr4V (k\u00f3d 6W6 nebo n\u00edzkouhl\u00edkov\u00e1 M2). Rychlo\u0159ezn\u00e1 ocel mus\u00ed b\u00fdt tak\u00e9 kov\u00e1na, aby se zlep\u0161ilo jej\u00ed rozlo\u017een\u00ed karbid\u016f.<\/p>\n\n\n\n<p><strong>6<\/strong><strong>.<\/strong>&nbsp;<strong>Z\u00e1kladna <\/strong><strong>S<\/strong><strong>ocel<\/strong>\u2002\u2002\u2002\u2002<\/p>\n\n\n\n<p>P\u0159idejte do z\u00e1kladn\u00edho slo\u017een\u00ed rychlo\u0159ezn\u00e9 oceli mal\u00e9 mno\u017estv\u00ed dal\u0161\u00edch prvk\u016f a vhodn\u00fdm zp\u016fsobem zvy\u0161te nebo sni\u017ete obsah uhl\u00edku, abyste zlep\u0161ili vlastnosti oceli.<\/p>\n\n\n\n<p>Takov\u00e9 typy oceli se souhrnn\u011b ozna\u010duj\u00ed jako z\u00e1kladn\u00ed ocel. Maj\u00ed nejen vlastnosti rychlo\u0159ezn\u00e9 oceli, maj\u00ed ur\u010dit\u00fd stupe\u0148 odolnosti proti opot\u0159eben\u00ed a tvrdost, ale maj\u00ed tak\u00e9 lep\u0161\u00ed \u00fanavovou pevnost a hou\u017eevnatost ne\u017e rychlo\u0159ezn\u00e1 ocel. Jsou to oceli s vysokou pevnost\u00ed a hou\u017eevnatost\u00ed pro oh\u00fdb\u00e1n\u00ed za studena a materi\u00e1lov\u00e9 n\u00e1klady jsou ni\u017e\u0161\u00ed ne\u017e u rychlo\u0159ezn\u00e9 oceli. B\u011b\u017en\u011b pou\u017e\u00edvan\u00e9 z\u00e1kladn\u00ed oceli ve form\u00e1ch oh\u00fdbac\u00edch stroj\u016f jsou 6Cr4W3Mo2VNb (k\u00f3d 65Nb), 7Cr7Mo2V2Si (k\u00f3d LD), 5Cr4Mo3SiMnVAL (k\u00f3d 012AL) a tak d\u00e1le.<\/p>\n\n\n\n<p><strong>7<\/strong><strong>.<\/strong>&nbsp;<strong>Cementovan\u00e9 <\/strong><strong>C<\/strong><strong>obsadit a <\/strong><strong>S<\/strong><strong>ocel <\/strong><strong>B<\/strong><strong>onded <\/strong><strong>C<\/strong><strong>mented <\/strong><strong>C<\/strong><strong>obsadit<\/strong>\u2002\u2002\u2002\u2002\u2002<\/p>\n\n\n\n<p>Tvrdost a odolnost proti opot\u0159eben\u00ed slinut\u00e9ho karbidu jsou vy\u0161\u0161\u00ed ne\u017e u jak\u00e9hokoli jin\u00e9ho typu oh\u00fdbac\u00ed oceli, ale pevnost v ohybu a hou\u017eevnatost jsou n\u00edzk\u00e9. Slinut\u00fd karbid pou\u017eit\u00fd jako forma oh\u00fdba\u010dky je wolfram-kobalt. Pro oh\u00fdbac\u00ed strojn\u00ed formy s n\u00edzkou r\u00e1zovou hou\u017eevnatost\u00ed a vysokou odolnost\u00ed proti opot\u0159eben\u00ed lze zvolit slinut\u00fd karbid s ni\u017e\u0161\u00edm obsahem kobaltu. Pro vysoce r\u00e1zov\u00e9 oh\u00fdbac\u00ed formy lze zvolit slinut\u00fd karbid s vy\u0161\u0161\u00edm obsahem kobaltu.<\/p>\n\n\n\n<p>Slinut\u00fd karbid v\u00e1zan\u00fd ocel\u00ed se vyr\u00e1b\u00ed p\u0159id\u00e1n\u00edm mal\u00e9ho mno\u017estv\u00ed pr\u00e1\u0161ku leguj\u00edc\u00edch prvk\u016f (jako je chrom, molybden, wolfram, vanad atd.) k \u017eelezn\u00e9mu pr\u00e1\u0161ku jako pojivu, s pou\u017eit\u00edm karbidu titanu nebo karbidu wolframu jako tvrd\u00e9 f\u00e1ze a slinov\u00e1n\u00edm pr\u00e1\u0161kovou metalurgi\u00ed. Matrice ocelov\u011b v\u00e1zan\u00e9ho slinut\u00e9ho karbidu je ocel, kter\u00e1 p\u0159ekon\u00e1v\u00e1 nev\u00fdhody \u0161patn\u00e9 hou\u017eevnatosti a obt\u00ed\u017en\u00e9ho zpracov\u00e1n\u00ed slinut\u00e9ho karbidu. Lze jej \u0159ezat, sva\u0159ovat, kovat a tepeln\u011b zpracov\u00e1vat. Slinut\u00fd karbid s ocel\u00ed obsahuje velk\u00e9 mno\u017estv\u00ed karbid\u016f. P\u0159esto\u017ee tvrdost a odolnost proti opot\u0159eben\u00ed jsou ni\u017e\u0161\u00ed ne\u017e u slinut\u00e9ho karbidu, jsou st\u00e1le vy\u0161\u0161\u00ed ne\u017e u jin\u00fdch jakost\u00ed oceli. Po kalen\u00ed a popou\u0161t\u011bn\u00ed m\u016f\u017ee tvrdost dos\u00e1hnout 68 ~ 73 HRC.<\/p>\n\n\n\n<p><strong>8<\/strong><strong>. Nov\u00fd <\/strong><strong>M<\/strong><strong>aterials<\/strong>\u2002\u2002\u2002<\/p>\n\n\n\n<p>Materi\u00e1l pou\u017eit\u00fd ve form\u011b lisovac\u00ed CNC oh\u00fdba\u010dky<a href=\"https:\/\/www.youtube.com\/watch?v=rcnfHpPizBI&amp;list=PLBJ9_Wl_KHY9gqM8bGEvO52WkyVcv_FUe&amp;index=11\" target=\"_blank\" rel=\"noopener\">E <\/a>pat\u0159\u00ed do formov\u00e9 oceli oh\u00fdba\u010dky pro pr\u00e1ci za studena, kter\u00e1 je nejpou\u017e\u00edvan\u011bj\u0161\u00ed a nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00ed formovou ocel\u00ed oh\u00fdba\u010dky. Hlavn\u00edmi po\u017eadavky na v\u00fdkon jsou pevnost, hou\u017eevnatost a odolnost proti opot\u0159eben\u00ed. V sou\u010dasn\u00e9 dob\u011b je v\u00fdvojov\u00fd trend oh\u00fdbac\u00ed oceli pro tv\u00e1\u0159en\u00ed za studena zalo\u017een na v\u00fdkonu vysoce legovan\u00e9 oceli D2 (ekvivalentn\u00ed Cr12MoV v m\u00e9 zemi), rozd\u011blen\u00e9 do dvou hlavn\u00edch v\u011btv\u00ed: jedn\u00edm je sn\u00ed\u017een\u00ed obsahu uhl\u00edku a mno\u017estv\u00ed leguj\u00edc\u00edch prvk\u016f. a ke zv\u00fd\u0161en\u00ed karbid\u016f v oceli Rovnom\u011brnost rozlo\u017een\u00ed zv\u00fdraz\u0148uje zlep\u0161en\u00ed hou\u017eevnatosti formy oh\u00fdbac\u00edho stroje. Jako je 8CrMo2V2Si od Vanadium Alloy Steel Company ve Spojen\u00fdch st\u00e1tech a DC53 (Cr8Mo2SiV) od Datong Special Steel Company v Japonsku. Druh\u00fdm je pr\u00e1\u0161kov\u00e1 rychlo\u0159ezn\u00e1 ocel vyvinut\u00e1 pro hlavn\u00ed \u00fa\u010del zlep\u0161en\u00ed odolnosti proti opot\u0159eben\u00ed, aby se p\u0159izp\u016fsobila vysokorychlostn\u00ed, automatizovan\u00e9 a hromadn\u00e9 v\u00fdrob\u011b. Nap\u0159\u00edklad 320CrVMo13 v N\u011bmecku atd.<\/p>\n\n\n\n<p>Materi\u00e1l z <a href=\"https:\/\/www.youtube.com\/watch?v=rcnfHpPizBI&amp;list=PLBJ9_Wl_KHY9gqM8bGEvO52WkyVcv_FUe&amp;index=11\" target=\"_blank\" rel=\"noopener\">oh\u00fdbac\u00ed obr\u00e1b\u011bc\u00ed stroje<\/a>&nbsp;je hlavn\u00edm kl\u00ed\u010dov\u00fdm faktorem ovliv\u0148uj\u00edc\u00edm \u017eivotnost. P\u0159i dobr\u00e9m v\u00fdb\u011bru materi\u00e1lu se \u017eivotnost relativn\u011b prodlou\u017e\u00ed bez dal\u0161\u00edch prom\u011bnliv\u00fdch faktor\u016f.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"613\" height=\"407\" src=\"https:\/\/tooling.harsle.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72472-4.png\" alt=\"oh\u00fdbac\u00ed n\u00e1stroje\" class=\"wd-lazy-fade wp-image-17495\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72472-4.png 613w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72472-4-300x199.png 300w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72472-4-18x12.png 18w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72472-4-600x398.png 600w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72472-4-150x100.png 150w\" sizes=\"(max-width: 613px) 100vw, 613px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<p><strong>Dal\u0161\u00ed <\/strong><strong>j\u00e1<\/strong><strong>d\u016fle\u017eit\u00e9 <\/strong><strong>F<\/strong><strong>herec <\/strong><strong>T<\/strong><strong>\u010depice <\/strong><strong>A<\/strong><strong>\u00fa\u010dinky <\/strong><strong>S<\/strong><strong>slu\u017ebu <\/strong><strong>L<\/strong><strong>pokud je <\/strong><strong>T<\/strong><strong>on <\/strong><strong>H<\/strong><strong>j\u00edst <\/strong><strong>T<\/strong><strong>p\u0159epracov\u00e1n\u00ed <\/strong><strong>P<\/strong><strong>rocess <\/strong><strong>D<\/strong><strong>urgov\u00e1n\u00ed <\/strong><strong>P<\/strong><strong>rocessing.<\/strong><strong><\/strong><\/p>\n\n\n\n<p><strong>1.<\/strong>&nbsp;Tepeln\u00e1 \u00faprava cel\u00e9ho t\u011bla a oxidace ost\u0159\u00ed no\u017ee jsou dva pojmy. Aby se u\u0161et\u0159ily n\u00e1klady na zpracov\u00e1n\u00ed, n\u011bkte\u0159\u00ed v\u00fdrobci forem pro oh\u00fdba\u010dky neproch\u00e1zej\u00ed po vytvo\u0159en\u00ed formy tepeln\u00fdm zpracov\u00e1n\u00edm cel\u00e9ho t\u011bla, ale oxiduj\u00ed ost\u0159\u00ed no\u017e\u016f na hlavn\u00edch \u010d\u00e1stech oh\u00fdba\u010dky. Tvrdost po oxidaci je ni\u017e\u0161\u00ed ne\u017e tvrdost povrchu po tepeln\u00e9m zpracov\u00e1n\u00ed cel\u00e9ho t\u011bla. Ve srovn\u00e1n\u00ed s tepeln\u00fdm zpracov\u00e1n\u00edm cel\u00e9ho t\u011bla je \u017eivotnost formy pouze s jednoduchou oxidac\u00ed ost\u0159\u00ed no\u017ee v\u00fdrazn\u011b sn\u00ed\u017eena ne\u017e u tepeln\u00e9ho zpracov\u00e1n\u00ed cel\u00e9ho t\u011bla. Toto je jeden z nich.<\/p>\n\n\n\n<p><strong>2.<\/strong>&nbsp;Kl\u00ed\u010dov\u00fdm d\u016fvodem je tak\u00e9 volba procesu tepeln\u00e9ho zpracov\u00e1n\u00ed. Obecn\u011b je procesem tepeln\u00e9ho zpracov\u00e1n\u00ed b\u011b\u017en\u011b pou\u017e\u00edvan\u00fdm v\u00fdrobci forem vysokoteplotn\u00ed tepeln\u00e9 zpracov\u00e1n\u00ed v peci. A\u010dkoli povrch formy m\u016f\u017ee dos\u00e1hnout ur\u010dit\u00e9 tvrdosti, proces tepeln\u00e9ho zpracov\u00e1n\u00ed p\u0159i vysok\u00e9 teplot\u011b m\u00e1 nev\u00fdhody. Tvrdost ka\u017ed\u00e9 \u010d\u00e1sti formy vyroben\u00e9 vysokoteplotn\u00edm tepeln\u00fdm zpracov\u00e1n\u00edm m\u016f\u017ee b\u00fdt v\u00edce \u010di m\u00e9n\u011b jist\u00e1. Rozd\u00edl je v tom, \u017ee vysokoteplotn\u00ed tepeln\u00e9 zpracov\u00e1n\u00ed m\u016f\u017ee dos\u00e1hnout toho, \u017ee povrch m\u016f\u017ee dos\u00e1hnout odpov\u00eddaj\u00edc\u00ed tvrdosti. \u010c\u00edm hloub\u011bji uvnit\u0159, t\u00edm ni\u017e\u0161\u00ed bude tvrdost. V\u00fd\u0161e uveden\u00e9 dva body tedy budou m\u00edt vliv na \u017eivotnost formy.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"460\" height=\"308\" src=\"https:\/\/tooling.harsle.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72473-1.png\" alt=\"p\u0159izp\u016fsoben\u00e9 n\u00e1stroje\" class=\"wd-lazy-fade wp-image-17496\" title=\"\" srcset=\"\" data-srcset=\"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72473-1.png 460w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72473-1-300x201.png 300w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72473-1-18x12.png 18w, https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u56fe\u72473-1-150x100.png 150w\" sizes=\"(max-width: 460px) 100vw, 460px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<p>Vzhledem k r\u016fzn\u00e9 struktu\u0159e r\u016fzn\u00fdch materi\u00e1l\u016f obrobk\u016f se li\u0161\u00ed i pou\u017eit\u00e9 n\u00e1stroje a li\u0161\u00ed se i v\u00fdsledn\u00e1 odolnost proti opot\u0159eben\u00ed, pevnost v tahu, tvrdost materi\u00e1lu, koeficient tahu, plasticita atd. P\u0159i v\u00fdb\u011bru formy lze rozumn\u011b vyb\u00edrat podle tlaku, struktury, materi\u00e1lu, rozlo\u017een\u00e9 velikosti obrobku, procesn\u00edch po\u017eadavk\u016f, povrchov\u00e9 \u00fapravy atd. obr\u00e1b\u011bc\u00edho stroje. Za norm\u00e1ln\u00edch okolnost\u00ed lze u \u017eelezn\u00fdch pl\u00e1t\u016f zvolit \u0161\u00ed\u0159ku z\u00e1\u0159ezu spodn\u00ed matrice, kter\u00e1 je 7-9kr\u00e1t v\u011bt\u0161\u00ed ne\u017e tlou\u0161\u0165ka materi\u00e1lu, ne m\u00e9n\u011b ne\u017e 7kr\u00e1t. Z\u00e1\u0159ez matrice pro v\u00fdb\u011br z nerezov\u00e9 oceli je 6-8kr\u00e1t v\u011bt\u0161\u00ed ne\u017e tlou\u0161\u0165ka materi\u00e1lu, ne m\u00e9n\u011b ne\u017e 6kr\u00e1t. U hlin\u00edku a m\u011bdi m\u016f\u017ee b\u00fdt z\u00e1\u0159ez spodn\u00ed formy 6-8kr\u00e1t v\u011bt\u0161\u00ed ne\u017e tlou\u0161\u0165ka materi\u00e1lu, ne m\u00e9n\u011b ne\u017e 6kr\u00e1t (m\u011blo by se vyhnout povrchov\u00fdm trhlin\u00e1m p\u0159i oh\u00fdb\u00e1n\u00ed).<\/p>\n\n\n\n<p><strong>P\u0159izp\u016fsoben\u00e9 n\u00e1stroje jsou tak\u00e9 k dispozici s n\u00e1sleduj\u00edc\u00edm<\/strong><strong>&nbsp;<\/strong><strong>informace:<\/strong><strong><\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\"><li>\u00fahly je t\u0159eba oh\u00fdbat<br>2. Tvar d\u00edl\u016f mus\u00ed m\u00edt<br>3. Tlou\u0161\u0165ka\/materi\u00e1l plechu pro d\u00edl<br>4. D\u00e9lka d\u00edlu mus\u00ed b\u00fdt ohnuta<br>5. Po\u017eadavky na sou\u010d\u00e1st (mo\u017enost po\u0161kr\u00e1b\u00e1n\u00ed, polom\u011br, rovnob\u011b\u017enost, linearita)<\/li><\/ol>","protected":false},"excerpt":{"rendered":"<p>There are many kinds of materials for the production of bending machine tooling, including steel, cemented carbide, steel-bonded cemented carbide,<\/p>","protected":false},"author":1,"featured_media":17456,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[2123,2120,2122],"class_list":["post-17453","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-press-brake-tooling","tag-bending-materials","tag-bending-tooling","tag-customized-tools"],"jetpack_featured_media_url":"https:\/\/tooling.harsle.com\/wp-content\/uploads\/2022\/01\/\u5fae\u4fe1\u56fe\u7247_20220120162012-1.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tooling.harsle.com\/cs\/wp-json\/wp\/v2\/posts\/17453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tooling.harsle.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tooling.harsle.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tooling.harsle.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tooling.harsle.com\/cs\/wp-json\/wp\/v2\/comments?post=17453"}],"version-history":[{"count":0,"href":"https:\/\/tooling.harsle.com\/cs\/wp-json\/wp\/v2\/posts\/17453\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tooling.harsle.com\/cs\/wp-json\/wp\/v2\/media\/17456"}],"wp:attachment":[{"href":"https:\/\/tooling.harsle.com\/cs\/wp-json\/wp\/v2\/media?parent=17453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tooling.harsle.com\/cs\/wp-json\/wp\/v2\/categories?post=17453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tooling.harsle.com\/cs\/wp-json\/wp\/v2\/tags?post=17453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}