{"id":11060,"date":"2026-06-19T09:14:09","date_gmt":"2026-06-19T09:14:09","guid":{"rendered":"https:\/\/shincofab.com\/?p=11060"},"modified":"2026-06-19T09:14:10","modified_gmt":"2026-06-19T09:14:10","slug":"sheet-metal-tolerances-guide","status":"publish","type":"post","link":"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/","title":{"rendered":"Kompletn\u00ed pr\u016fvodce tolerancemi plech\u016f p\u0159\u00edmo z d\u00edlny"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Pokud jste n\u011bkdy obdr\u017eeli z\u00e1silku d\u00edl\u016f, kter\u00e9 se nedaly k sob\u011b p\u0159i\u0161roubovat, v\u00edte, jak drah\u00e9 jsou vadn\u00e9 <strong>tolerance plech\u016f<\/strong> m\u016f\u017ee b\u00fdt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ve spole\u010dnosti ShincoFab ka\u017ed\u00fd m\u011bs\u00edc zpracov\u00e1v\u00e1me tuny surov\u00e9 oceli a hlin\u00edku. Str\u00e1vil jsem roky prac\u00ed p\u0159\u00edmo ve v\u00fdrob\u011b, kde jsem st\u00e1l mezi na\u0161imi laserov\u00fdmi \u0159eza\u010dkami a oh\u00fdba\u010dkami a opravoval chybn\u00e9 technick\u00e9 v\u00fdkresy. Vid\u011bl jsem na vlastn\u00ed o\u010di, co p\u0159esn\u011b zp\u016fsobuje, \u017ee je v\u00fdroba ur\u010dit\u00e9ho n\u00e1vrhu levn\u00e1, a byl jsem sv\u011bdkem toho, jak mont\u00e1\u017en\u00ed t\u00fdmy doslova kladivy opravovaly d\u00edly, kter\u00e9 selhaly na mont\u00e1\u017en\u00ed lince.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V tomto pr\u016fvodci v\u00e1m uk\u00e1\u017eu, jak p\u0159esn\u011b nastavit tolerance na z\u00e1klad\u011b toho, co se v na\u0161\u00ed v\u00fdrob\u011b skute\u010dn\u011b osv\u011bd\u010dilo. Dozv\u00edte se, kterou jedinou normu ISO skute\u010dn\u011b pot\u0159ebujete pou\u017e\u00edvat, jak se vyhnout \u201cpasti pr\u00e1\u0161kov\u00e9ho lakov\u00e1n\u00ed\u201d a jak\u00fd jednoduch\u00fd konstruk\u010dn\u00ed trik zaru\u010d\u00ed, \u017ee se va\u0161e d\u00edly budou poka\u017ed\u00e9 dokonale hodit k sob\u011b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159esta\u0148te se p\u0159i tvorb\u011b v\u00fdkres\u016f spol\u00e9hat na odhady. P\u0159e\u010dt\u011bte si tento \u010dl\u00e1nek a dozv\u00edte se, jak zajistit, aby se va\u0161e sou\u010d\u00e1sti sn\u00e1ze vyr\u00e1b\u011bly a jejich po\u0159\u00edzen\u00ed bylo mnohem levn\u011bj\u0161\u00ed.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/A-laser-head-cutting-metal-parts-with-intense-sparks-1024x576.jpg\" alt=\"Laserov\u00e1 hlava \u0159ezaj\u00edc\u00ed kovov\u00e9 d\u00edly za intenzivn\u00edho jisk\u0159en\u00ed\" class=\"wp-image-11075\" srcset=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/A-laser-head-cutting-metal-parts-with-intense-sparks-1024x576.jpg 1024w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/A-laser-head-cutting-metal-parts-with-intense-sparks-300x169.jpg 300w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/A-laser-head-cutting-metal-parts-with-intense-sparks-768x432.jpg 768w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/A-laser-head-cutting-metal-parts-with-intense-sparks-1536x864.jpg 1536w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/A-laser-head-cutting-metal-parts-with-intense-sparks-18x10.jpg 18w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/A-laser-head-cutting-metal-parts-with-intense-sparks.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Obsah<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">P\u0159ep\u00edna\u010d<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#What_Are_Sheet_Metal_Tolerances\" >Co jsou tolerance plech\u016f?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#The_Wiggle_Room_of_Manufacturing\" >Man\u00e9vrovac\u00ed prostor ve v\u00fdrob\u011b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Sheet_Metal_vs_Machining\" >Obr\u00e1b\u011bn\u00ed plechu vs. obr\u00e1b\u011bn\u00ed<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Why_You_Need_to_Care_About_Tolerances\" >Pro\u010d byste se m\u011bli zaj\u00edmat o tolerance<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Assembly_Nightmares\" >No\u010dn\u00ed m\u016fry p\u0159i mont\u00e1\u017ei<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#The_Cost_Factor\" >Faktor n\u00e1klad\u016f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#The_Cost_of_a_Zero_Rule_How_Over-Tolerancing_Ruins_Budgets\" >Cena \u201epravidla nula\u201c: Jak nadm\u011brn\u00e1 tolerance ni\u010d\u00ed rozpo\u010dty<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#What_Are_the_3_Main_Types_of_Sheet_Metal_Tolerances\" >Jak\u00e9 jsou t\u0159i hlavn\u00ed typy toleranc\u00ed u plech\u016f?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Material_Tolerances\" >Tolerance materi\u00e1l\u016f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Dimensional_Tolerances\" >Rozm\u011brov\u00e9 tolerance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Angular_Tolerances\" >\u00dahlov\u00e9 tolerance<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#What_is_the_ISO_2768_Sheet_Metal_Tolerance_Standard\" >Co je norma ISO 2768 pro tolerance plech\u016f?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#The_Medium_m_Class\" >T\u0159\u00edda \u201eMedium\u201c (m)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#When_to_Ignore_the_Standard\" >Kdy ignorovat normu<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#How_Your_Fabrication_Process_Changes_the_Rules\" >Jak v\u00e1\u0161 v\u00fdrobn\u00ed proces m\u011bn\u00ed pravidla<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Laser_Cutting_vs_Punching\" >\u0158ez\u00e1n\u00ed laserem vs. d\u011brov\u00e1n\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Bending_and_the_Springback_Effect\" >Oh\u00fdb\u00e1n\u00ed a jev zp\u011btn\u00e9ho pru\u017een\u00ed<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Dont_Forget_the_Paint_Finishes_Change_Everything\" >Nezapome\u0148te na barvu: Povrchov\u00e1 \u00faprava m\u011bn\u00ed v\u0161echno<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#The_Powder_Coat_Trap\" >Past s pr\u00e1\u0161kov\u00fdm lakem<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Why_Do_Sheet_Metal_Assemblies_Fail\" >Pro\u010d doch\u00e1z\u00ed k poruch\u00e1m plechov\u00fdch sestav?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#How_Errors_Add_Up_Across_Multiple_Bends\" >Jak se chyby s\u010d\u00edtaj\u00ed v n\u011bkolika ohybech<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#The_Slot_Strategy_for_Painless_Assembly\" >Strategie pro snadnou mont\u00e1\u017e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Design_Cheatsheets_Hems_Curls_and_Countersinks\" >N\u00e1vody k designu: Lemov\u00e1n\u00ed, zvln\u011bn\u00ed a zahlouben\u00ed<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Countersink_Rules\" >Pravidla pro zahlouben\u00ed<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Hems_and_Curls\" >Lemy a kudrlinky<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Conclusion\" >Z\u00e1v\u011br<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/shincofab.com\/cs\/sheet-metal-tolerances-guide\/#Appendix_Sheet_Metal_Tolerance_Reference_Tables\" >P\u0159\u00edloha: Referen\u010dn\u00ed tabulky toleranc\u00ed plech\u016f<\/a><\/li><\/ul><\/nav><\/div>\n<h2 id=\"h-what-are-sheet-metal-tolerances\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_Sheet_Metal_Tolerances\"><\/span>Co jsou tolerance plech\u016f?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ve v\u00fdrob\u011b nen\u00ed nic 100% dokonal\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Poka\u017ed\u00e9, kdy\u017e 10 000-wattov\u00fd laser \u0159e\u017ee nebo 100-tunov\u00fd oh\u00fdba\u010d oh\u00fdb\u00e1 kus kovu, dojde k nepatrn\u00e9mu odchylce od p\u016fvodn\u00edho v\u00fdkresu. A <strong>tolerance<\/strong> je p\u0159\u00edpustn\u00e1 velikost rozm\u011brov\u00e9 odchylky povolen\u00e1 b\u011bhem v\u00fdrobn\u00edho procesu.<\/p>\n\n\n\n<h3 id=\"h-the-wiggle-room-of-manufacturing\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Wiggle_Room_of_Manufacturing\"><\/span>Man\u00e9vrovac\u00ed prostor ve v\u00fdrob\u011b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Toleranci si p\u0159edstavte jako ur\u010ditou volnost ve va\u0161em n\u00e1vrhu.<br>Mohli byste n\u00e1s po\u017e\u00e1dat, abychom na\u0159ezali kus oceli o d\u00e9lce p\u0159esn\u011b 10 palc\u016f. Ve skute\u010dnosti by ho stroj mohl na\u0159ezat na 10,01 palce nebo na 9,99 palce.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pokud se rozm\u011br vejde do povolen\u00e9 tolerance, je d\u00edl v po\u0159\u00e1dku.<\/li>\n\n\n\n<li>Pokud se to nevejde, skon\u010d\u00ed ten d\u00edl v ko\u0161i na odpad.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nastaven\u00ed spr\u00e1vn\u00e9 v\u016fle je z\u00e1sadn\u00ed. Zaji\u0161\u0165uje, \u017ee se fin\u00e1ln\u00ed d\u00edly skute\u010dn\u011b k sob\u011b hod\u00ed, ani\u017e by to v\u00fdrobce nutilo pracovat v ne\u00fanosn\u011b pomal\u00e9m tempu.<\/p>\n\n\n\n<h3 id=\"h-sheet-metal-vs-machining\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sheet_Metal_vs_Machining\"><\/span>Obr\u00e1b\u011bn\u00ed plechu vs. obr\u00e1b\u011bn\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u0161\u00edm\u00e1m si, \u017ee konstrukt\u00e9\u0159i neust\u00e1le d\u011blaj\u00ed jednu velkou chybu. Navrhuj\u00ed plechov\u00e9 d\u00edly p\u0159esn\u011b tak, jako by \u0161lo o d\u00edly obr\u00e1b\u011bn\u00e9 na CNC stroj\u00edch. To se ned\u00e1 ud\u011blat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Obr\u00e1b\u011bn\u00ed<\/strong> jedn\u00e1 se o subtraktivn\u00ed proces, p\u0159i kter\u00e9m se v p\u0159esn\u011b kontrolovan\u00e9m prostoru vy\u0159ez\u00e1v\u00e1 tvar z masivn\u00edho bloku materi\u00e1lu. To umo\u017e\u0148uje dos\u00e1hnout extr\u00e9mn\u00ed, mikroskopick\u00e9 p\u0159esnosti.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00fdroba plech\u016f<\/strong> je zcela odli\u0161n\u00fd proces, p\u0159i kter\u00e9m se ploch\u00e9 plechy nejprve na\u0159ez\u00e1vaj\u00ed a pot\u00e9 se oh\u00fdbaj\u00ed pomoc\u00ed t\u011b\u017ek\u00fdch V-tvarov\u00fdch lisovac\u00edch n\u00e1stroj\u016f.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e to ud\u011bl\u00e1te, kov se nat\u00e1hne. Deformuje se. M\u00e1 p\u0159irozenou tendenci vr\u00e1tit se do p\u016fvodn\u00edho tvaru. Kv\u016fli tomuto natahov\u00e1n\u00ed a odporu vy\u017eaduje oh\u00fdban\u00fd plech mnohem v\u011bt\u0161\u00ed man\u00e9vrovac\u00ed prostor ne\u017e pevn\u00fd, obroben\u00fd blok.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Po\u017eadavek na dokonalou, strojovou p\u0159esnost u oh\u00fdban\u00e9ho kusu kovu \u010din\u00ed v\u00fdrobu chaotickou, pomalou a extr\u00e9mn\u011b n\u00e1kladnou.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Close-up-of-a-press-brake-bending-sheet-metal-1024x576.jpg\" alt=\"Detailn\u00ed z\u00e1b\u011br oh\u00fdb\u00e1n\u00ed plechu na ohra\u0148ovac\u00edm lisu\" class=\"wp-image-11077\" srcset=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Close-up-of-a-press-brake-bending-sheet-metal-1024x576.jpg 1024w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Close-up-of-a-press-brake-bending-sheet-metal-300x169.jpg 300w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Close-up-of-a-press-brake-bending-sheet-metal-768x432.jpg 768w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Close-up-of-a-press-brake-bending-sheet-metal-1536x864.jpg 1536w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Close-up-of-a-press-brake-bending-sheet-metal-18x10.jpg 18w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Close-up-of-a-press-brake-bending-sheet-metal.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 id=\"h-why-you-need-to-care-about-tolerances\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_You_Need_to_Care_About_Tolerances\"><\/span>Pro\u010d byste se m\u011bli zaj\u00edmat o tolerance<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud se p\u0159i kreslen\u00ed budete spol\u00e9hat jen na odhad, naraz\u00edte na dva z\u00e1sadn\u00ed probl\u00e9my. V\u0161e se to\u010d\u00ed kolem va\u0161eho \u010dasu a pen\u011bz.<\/p>\n\n\n\n<h3 id=\"h-assembly-nightmares\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Assembly_Nightmares\"><\/span>No\u010dn\u00ed m\u016fry p\u0159i mont\u00e1\u017ei<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159edstavte si, \u017ee otev\u00edr\u00e1te krabici s \u010derstv\u011b vyroben\u00fdmi d\u00edly. Vypadaj\u00ed dokonale. Ale kdy\u017e se pokus\u00edte p\u0159i\u0161roubovat v\u00edko k z\u00e1kladn\u011b, otvory se minou o zlomek palce.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0160rouby tam nelze za\u0161roubovat silou. Mus\u00edte vz\u00edt vrta\u010dku, abyste otvory zv\u011bt\u0161ili, \u010d\u00edm\u017e se zni\u010d\u00ed lak. V\u00fdroba se \u00fapln\u011b zastav\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tohle je klasick\u00fd mont\u00e1\u017en\u00ed no\u010dn\u00ed m\u016fra. Obvykle k tomu doch\u00e1z\u00ed proto, \u017ee konstrukt\u00e9r zapomn\u011bl, \u017ee oh\u00fdban\u00fd kov se b\u011bhem v\u00fdroby posouv\u00e1. Spr\u00e1vn\u011b zvolen\u00e9 tolerance tomuto probl\u00e9mu zabr\u00e1n\u00ed. Zaru\u010duj\u00ed, \u017ee se va\u0161e d\u00edly snadno zasunou do sebe, hned po vybalen\u00ed.<\/p>\n\n\n\n<h3 id=\"h-the-cost-factor\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Cost_Factor\"><\/span>Faktor n\u00e1klad\u016f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nerealistick\u00e9 tolerance jsou nejrychlej\u0161\u00ed cestou, jak vy\u010derpat v\u00e1\u0161 rozpo\u010det.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud po\u017eadujete extr\u00e9mn\u00ed a zbyte\u010dnou p\u0159esnost, mus\u00ed v\u00e1\u0161 v\u00fdrobce zm\u011bnit zp\u016fsob sv\u00e9 pr\u00e1ce. Takto to vypad\u00e1 v z\u00e1kulis\u00ed na\u0161\u00ed tov\u00e1rny:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Stroje mus\u00ed b\u011b\u017eet p\u0159i ni\u017e\u0161\u00edch ot\u00e1\u010dk\u00e1ch.<\/li>\n\n\n\n<li>Pracovn\u00edci tr\u00e1v\u00ed \u010das nav\u00edc ru\u010dn\u00edm m\u011b\u0159en\u00edm d\u00edl\u016f pomoc\u00ed digit\u00e1ln\u00edch posuvn\u00fdch m\u011b\u0159idel.<\/li>\n\n\n\n<li>Zcela funk\u010dn\u00ed sou\u010d\u00e1stky kon\u010d\u00ed v ko\u0161i na \u0161rot jen proto, \u017ee se o vl\u00e1sek li\u0161\u00ed od normy.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nakonec zaplat\u00edte za v\u0161echen ten \u010das nav\u00edc a za zbyte\u010dn\u011b spot\u0159ebovan\u00fd materi\u00e1l. Cena se t\u00edm zv\u00fd\u0161\u00ed, ale dan\u00e1 sou\u010d\u00e1stka ve skute\u010dnosti nefunguje o nic l\u00e9pe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ve skute\u010dnosti jedna b\u011b\u017en\u00e1 chyba, kterou design\u00e9\u0159i d\u011blaj\u00ed, zp\u016fsob\u00ed t\u00e9m\u011b\u0159 okam\u017eit\u00fd raketov\u00fd n\u00e1r\u016fst ceny. T\u00fdk\u00e1 se to pouze jedin\u00e9ho, nepatrn\u00e9ho \u010d\u00edsla na v\u00fdkresu.<\/p>\n\n\n\n<h2 id=\"h-the-cost-of-a-zero-rule-how-over-tolerancing-ruins-budgets\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Cost_of_a_Zero_Rule_How_Over-Tolerancing_Ruins_Budgets\"><\/span>Cena \u201epravidla nula\u201c: Jak nadm\u011brn\u00e1 tolerance ni\u010d\u00ed rozpo\u010dty<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nejdra\u017e\u0161\u00ed chybou, kterou m\u016f\u017eete p\u0159i kreslen\u00ed ud\u011blat, je to, \u010demu \u0159\u00edk\u00e1m \u201epravidlo n\u00e1klad\u016f na nulu\u201c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud chcete jednoduch\u00fd dr\u017e\u00e1k z hlin\u00edku 5052, m\u016f\u017eete jako toleranci \u0161\u00ed\u0159ky uv\u00e9st \u00b10,1. Tuto hodnotu snadno spln\u00ed jak\u00fdkoli standardn\u00ed obr\u00e1b\u011bc\u00ed stroj.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ale pak se rozhodnete j\u00edt na jistotu. K v\u00fdkresu p\u0159id\u00e1te jednu malou nulu. Zm\u011bn\u00edte toleranci z \u00b10,1 na \u00b10,01.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ta jedin\u00e1 nula pr\u00e1v\u011b zdvojn\u00e1sobila va\u0161i cenu. Pro\u010d? Proto\u017ee jste n\u00e1\u0161 t\u00fdm donutili p\u0159ej\u00edt do panick\u00e9ho re\u017eimu. Aby dos\u00e1hli tohoto extr\u00e9mn\u00edho \u010d\u00edsla, mus\u00ed p\u0159ekonat t\u0159i n\u00e1kladn\u00e9 p\u0159ek\u00e1\u017eky:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Nemohou pou\u017e\u00edvat standardn\u00ed razn\u00edky a mus\u00ed si po\u0159\u00eddit n\u00e1stroje vyroben\u00e9 na m\u00edru.<\/li>\n\n\n\n<li>Mus\u00ed provozovat sv\u00e9 stroje na minim\u00e1ln\u00ed rychlost.<\/li>\n\n\n\n<li>N\u00e1\u0161 technik kontroly kvality mus\u00ed zastavit a ru\u010dn\u011b zkontrolovat ka\u017ed\u00fd jednotliv\u00fd d\u00edl pomoc\u00ed drah\u00fdch m\u011b\u0159idel.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pravdou je, \u017ee v\u011bt\u0161ina plechov\u00fdch d\u00edl\u016f takovou \u00farove\u0148 dokonalosti v\u016fbec nevy\u017eaduje. Kovov\u00e1 sk\u0159\u00ed\u0148ka, ve kter\u00e9 je um\u00edst\u011bna deska s plo\u0161n\u00fdmi spoji, nevy\u017eaduje stejn\u011b p\u0159esn\u00e9 v\u00fdpo\u010dty jako proudov\u00fd motor. Nechte sv\u00fdm d\u00edl\u016fm co nejv\u011bt\u0161\u00ed man\u00e9vrovac\u00ed prostor, jak je to bezpe\u010dn\u011b mo\u017en\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Engineer-measuring-a-metal-part-with-digital-calipers-1024x576.jpg\" alt=\"In\u017een\u00fdr m\u011b\u0159\u00edc\u00ed kovov\u00fd d\u00edl digit\u00e1ln\u00edm posuvn\u00fdm m\u011b\u0159\u00edtkem\" class=\"wp-image-11079\" srcset=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Engineer-measuring-a-metal-part-with-digital-calipers-1024x576.jpg 1024w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Engineer-measuring-a-metal-part-with-digital-calipers-300x169.jpg 300w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Engineer-measuring-a-metal-part-with-digital-calipers-768x432.jpg 768w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Engineer-measuring-a-metal-part-with-digital-calipers-1536x864.jpg 1536w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Engineer-measuring-a-metal-part-with-digital-calipers-18x10.jpg 18w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Engineer-measuring-a-metal-part-with-digital-calipers.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 id=\"h-what-are-the-3-main-types-of-sheet-metal-tolerances\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_the_3_Main_Types_of_Sheet_Metal_Tolerances\"><\/span>Jak\u00e9 jsou t\u0159i hlavn\u00ed typy toleranc\u00ed u plech\u016f?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ne\u017e budete moci do v\u00fdkresu vepsat spr\u00e1vn\u00e9 hodnoty, mus\u00edte v\u011bd\u011bt, co vlastn\u011b m\u011b\u0159\u00edte. <strong>Existuj\u00ed t\u0159i z\u00e1kladn\u00ed typy toleranc\u00ed plech\u016f: materi\u00e1lov\u00e9 tolerance, rozm\u011brov\u00e9 tolerance a \u00fahlov\u00e9 tolerance.<\/strong><\/p>\n\n\n\n<h3 id=\"h-material-tolerances\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Material_Tolerances\"><\/span>Tolerance materi\u00e1l\u016f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Je\u0161t\u011b ne\u017e se laser v\u016fbec dotkne va\u0161eho d\u00edlu, surov\u00fd kov u\u017e m\u00e1 m\u00edrnou odchylku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u011bt\u0161ina lid\u00ed se domn\u00edv\u00e1, \u017ee ocelov\u00fd plech o tlou\u0161\u0165ce 11 gauge (3 mm) m\u00e1 p\u0159esn\u011b 3 mm. Nen\u00ed tomu tak. Kdy\u017e tov\u00e1rny v\u00e1lcuj\u00ed velk\u00e9 svitky kovu, tlou\u0161\u0165ka se p\u0159irozen\u011b li\u0161\u00ed od \u0161ar\u017ee k \u0161ar\u017ei. Stalo se n\u00e1m, \u017ee n\u00e1m dorazily jednotliv\u00e9 plechy, kter\u00e9 byly na jednom okraji znateln\u011b siln\u011bj\u0161\u00ed ne\u017e na druh\u00e9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ne\u017e se pust\u00edte do \u010dehokoli jin\u00e9ho, mus\u00edte po\u010d\u00edtat s touto p\u0159irozenou variabilitou materi\u00e1lu.<\/p>\n\n\n\n<h3 id=\"h-dimensional-tolerances\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dimensional_Tolerances\"><\/span>Rozm\u011brov\u00e9 tolerance<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tuhle budete pou\u017e\u00edvat nej\u010dast\u011bji. <strong>Rozm\u011brov\u00e9 tolerance<\/strong> ur\u010duj\u00ed rozm\u011bry va\u0161ich prvk\u016f. Konkr\u00e9tn\u011b definuj\u00ed n\u00e1sleduj\u00edc\u00ed kl\u00ed\u010dov\u00e9 rozm\u011bry:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Celkov\u00e1 d\u00e9lka a \u0161\u00ed\u0159ka va\u0161eho d\u00edlu.<\/li>\n\n\n\n<li>P\u0159esn\u00fd pr\u016fm\u011br vy\u0159\u00edznut\u00fdch otvor\u016f.<\/li>\n\n\n\n<li>Vzd\u00e1lenost od okraje k otvoru.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud jsou tyto rozm\u011bry p\u0159\u00edli\u0161 t\u011bsn\u00e9, cena se zv\u00fd\u0161\u00ed. Pokud jsou naopak p\u0159\u00edli\u0161 voln\u00e9, mont\u00e1\u017en\u00ed \u0161rouby se tam nevejdou.<\/p>\n\n\n\n<h3 id=\"h-angular-tolerances\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Angular_Tolerances\"><\/span>\u00dahlov\u00e9 tolerance<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Oh\u00fdb\u00e1n\u00ed kovu je boj. An <strong>\u00fahlov\u00e1 tolerance<\/strong> ur\u010duje, jak bl\u00edzko se v\u00e1\u0161 stroj dostane k dokonal\u00e9mu ohybu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud pot\u0159ebujete 90stup\u0148ov\u00fd \u00fahel, m\u016f\u017ee se st\u00e1t, \u017ee stroj ve skute\u010dnosti dos\u00e1hne 89,5 stup\u0148\u016f nebo 90,5 stup\u0148\u016f. V tomto p\u0159\u00edpad\u011b mus\u00edte v\u00fdrobci ponechat volnost v rozsahu jednoho \u010di dvou stup\u0148\u016f. Pokud tak neu\u010din\u00edte, budou na\u0161i oper\u00e1to\u0159i tr\u00e1vit hodiny ru\u010dn\u00edm se\u0159izov\u00e1n\u00edm oh\u00fdba\u010dky, jen aby dos\u00e1hli p\u0159esn\u011b v\u00e1mi po\u017eadovan\u00e9 hodnoty.<\/p>\n\n\n\n<h2 id=\"h-what-is-the-iso-2768-sheet-metal-tolerance-standard\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_the_ISO_2768_Sheet_Metal_Tolerance_Standard\"><\/span>Co je norma ISO 2768 pro tolerance plech\u016f?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nen\u00ed nutn\u00e9 zad\u00e1vat vlastn\u00ed toleranci pro ka\u017edou jednotlivou \u010d\u00e1ru ve v\u00fdkresu. Zabere to p\u0159\u00edli\u0161 mnoho \u010dasu a v\u00fdkres se t\u00edm zbyte\u010dn\u011b p\u0159epln\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00edsto toho in\u017een\u00fd\u0159i pou\u017e\u00edvaj\u00ed mezin\u00e1rodn\u00ed normu nazvanou <strong><a href=\"https:\/\/www.iso.org\/standard\/7748.html\" target=\"_blank\" rel=\"noreferrer noopener\">ISO 2768<\/a><\/strong>. Berte to jako univerz\u00e1ln\u00ed v\u00fdchoz\u00ed bod. Sta\u010d\u00ed na v\u00fdkres um\u00edstit jednu notu a automaticky se nastav\u00ed pravidla pro celou \u010d\u00e1st.<\/p>\n\n\n\n<h3 id=\"h-the-medium-m-class\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Medium_m_Class\"><\/span>T\u0159\u00edda \u201eMedium\u201c (m)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Norma ISO se d\u011bl\u00ed na r\u016fzn\u00e9 \u00farovn\u011b p\u0159esnosti. U plech\u016f sta\u010d\u00ed br\u00e1t v \u00favahu pouze jednu: <strong>T\u0159\u00edda \u201eMedium\u201c (m)<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Toto je z\u00e1kladn\u00ed pravidlo pro model 95% u v\u0161ech komer\u010dn\u00edch d\u00edl\u016f. Zaji\u0161\u0165uje dokonalou rovnov\u00e1hu mezi kvalitou a cenou.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sta\u010d\u00ed, kdy\u017e do rohu v\u00fdkresu nap\u00ed\u0161ete \u201cObecn\u00e9 tolerance: ISO 2768-m\u201d. Tato jednoduch\u00e1 pozn\u00e1mka d\u00e1v\u00e1 na\u0161\u00ed d\u00edln\u011b pokyn, aby pou\u017eila standardn\u00ed nastaven\u00ed stroj\u016f. Funk\u010dn\u00ed d\u00edly tak z\u00edsk\u00e1te rychle a vyhnete se placen\u00ed nadstandardn\u00edch cen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud p\u0159ipravujete v\u00fdkresy a pot\u0159ebujete p\u0159esn\u00e9 referen\u010dn\u00ed \u00fadaje, zde jsou uvedeny standardn\u00ed line\u00e1rn\u00ed a \u00fahlov\u00e9 tolerance pro t\u0159\u00eddu podle normy ISO 2768-m:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ISO 2768-m Line\u00e1rn\u00ed tolerance:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Jmenovit\u00e1 d\u00e9lka (mm)<\/th><th>Tolerance (mm)<\/th><\/tr><\/thead><tbody><tr><td>0,5 a\u017e 3<\/td><td>\u00b1 0,1<\/td><\/tr><tr><td>Od 3 do 6<\/td><td>\u00b1 0,1<\/td><\/tr><tr><td>Od 6 do 30<\/td><td>\u00b1 0,2<\/td><\/tr><tr><td>Od 30 do 120<\/td><td>\u00b1 0,3<\/td><\/tr><tr><td>V\u00edce ne\u017e 120 a\u017e 400<\/td><td>\u00b1 0,5<\/td><\/tr><tr><td>V\u00edce ne\u017e 400 a\u017e 1 000<\/td><td>\u00b1 0,8<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ISO 2768-m \u00dahlov\u00e9 tolerance:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>D\u00e9lka krat\u0161\u00ed nohy (mm)<\/th><th>Tolerance<\/th><\/tr><\/thead><tbody><tr><td>A\u017e 10<\/td><td>\u00b1 1\u00b0<\/td><\/tr><tr><td>Od 10 do 50<\/td><td>\u00b1 0\u00b030\u2032 (\u00b1 0,5\u00b0)<\/td><\/tr><tr><td>Od 50 do 120<\/td><td>\u00b1 0\u00b020\u2032 (\u00b1 0,33\u00b0)<\/td><\/tr><tr><td>V\u00edce ne\u017e 120 a\u017e 400<\/td><td>\u00b1 0\u00b010\u2032 (\u00b1 0,16\u00b0)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 id=\"h-when-to-ignore-the-standard\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"When_to_Ignore_the_Standard\"><\/span>Kdy ignorovat normu<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tato norma by se nem\u011bla vztahovat na \u00fapln\u011b v\u0161echno. Ignorujte ji, pokud je ur\u010dit\u00e1 vlastnost pro va\u0161i sestavu z\u00e1sadn\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mus\u00ed b\u00fdt otvor dokonale zarovnan\u00fd s deskou plo\u0161n\u00fdch spoj\u016f vyrobenou na zak\u00e1zku?<\/li>\n\n\n\n<li>Mus\u00ed se jaz\u00fd\u010dek pevn\u011b zasunout do dr\u00e1\u017eky?<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud je n\u011bjak\u00e1 vlastnost opravdu d\u016fle\u017eit\u00e1, stanov\u00edte pro ni vlastn\u00ed konkr\u00e9tn\u00ed, p\u0159\u00edsn\u011bj\u0161\u00ed toleranci. Pr\u00e1v\u011b v tomto p\u0159\u00edpad\u011b <strong><a href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/y14-5-dimensioning-tolerancing\" target=\"_blank\" rel=\"noreferrer noopener\">GD&amp;T (geometrick\u00e9 kvantifikace a tolerance)<\/a><\/strong> vstupuje do hry. M\u00edsto toho, abyste v\u0161ude uplat\u0148ovali p\u0159\u00edsn\u00e1 pravidla, pou\u017e\u00edv\u00e1te pozn\u00e1mky GD&amp;T \u2013 nap\u0159\u00edklad specifikaci <em>skute\u010dn\u00e1 pozice<\/em> t\u011bchto kl\u00ed\u010dov\u00fdch mont\u00e1\u017en\u00edch otvor\u016f nebo <em>rovinnost<\/em> p\u0159\u00edpadn\u011b sty\u010dn\u00e9 plochy \u2013 aby se regulovalo pouze to, na \u010dem z\u00e1le\u017e\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tyto vlastn\u00ed pozn\u00e1mky GD&amp;T budou m\u00edt v\u017edy p\u0159ednost p\u0159ed va\u0161\u00ed obecnou normou ISO 2768-m. P\u0159esn\u00e9 rozm\u011bry a geometrick\u00e9 po\u017eadavky uv\u00e1d\u011bjte pouze u t\u011bch prvk\u016f, kter\u00e9 je skute\u010dn\u011b pot\u0159ebuj\u00ed.<\/p>\n\n\n\n<h2 id=\"h-how-your-fabrication-process-changes-the-rules\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Your_Fabrication_Process_Changes_the_Rules\"><\/span>Jak v\u00e1\u0161 v\u00fdrobn\u00ed proces m\u011bn\u00ed pravidla<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00e1\u0161 n\u00e1vrh vypad\u00e1 na obrazovce po\u010d\u00edta\u010de skv\u011ble, ale r\u016fzn\u00e9 v\u00fdrobn\u00ed stroje m\u011bn\u00ed vlastnosti kovu velmi odli\u0161n\u00fdm zp\u016fsobem.<\/p>\n\n\n\n<h3 id=\"h-laser-cutting-vs-punching\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Laser_Cutting_vs_Punching\"><\/span>\u0158ez\u00e1n\u00ed laserem vs. d\u011brov\u00e1n\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i \u0159ez\u00e1n\u00ed ploch\u00e9ho plechu obvykle pou\u017e\u00edv\u00e1me laser nebo lis. Tyto stroje funguj\u00ed odli\u0161n\u011b. Laser vyu\u017e\u00edv\u00e1 extr\u00e9mn\u00ed teplo k pro\u0159\u00edznut\u00ed oceli, zat\u00edmco lis spol\u00e9h\u00e1 na hrubou fyzickou s\u00edlu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rozbalovac\u00ed nab\u00eddka materi\u00e1l\u016f<\/strong> Jedn\u00e1 se o fyzick\u00e9 prota\u017een\u00ed a deformaci, ke kter\u00fdm doch\u00e1z\u00ed v okol\u00ed otvoru, kdy\u017e lis s razn\u00edkem vraz\u00ed do kovu t\u011b\u017ek\u00fd ocelov\u00fd n\u00e1stroj. S t\u011bmito nepatrn\u00fdmi posuny je t\u0159eba po\u010d\u00edtat. Teplo a fyzick\u00e1 s\u00edla v\u017edy zanechaj\u00ed stopu.<\/p>\n\n\n\n<h3 id=\"h-bending-and-the-springback-effect\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Bending_and_the_Springback_Effect\"><\/span>Oh\u00fdb\u00e1n\u00ed a jev zp\u011btn\u00e9ho pru\u017een\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Springback<\/strong> je p\u0159irozen\u00e1 tendence ohnut\u00e9ho kovu k \u010d\u00e1ste\u010dn\u00e9mu narovn\u00e1n\u00ed pot\u00e9, co je uvoln\u011bn tlak oh\u00fdbac\u00edho lisu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e t\u011b\u017ek\u00fd oh\u00fdbac\u00ed lis tla\u010d\u00ed dol\u016f, aby ohnul kus kovu, kov klade odpor. Nechce z\u016fstat ohnut\u00fd. Ka\u017ed\u00fd druh kovu se vrac\u00ed do p\u016fvodn\u00edho tvaru jinak. Kus <strong><a href=\"https:\/\/www.azom.com\/properties.aspx?ArticleID=965\" target=\"_blank\" rel=\"noreferrer noopener\">304 nerezov\u00e1 ocel<\/a><\/strong> je mnohem odoln\u011bj\u0161\u00ed ne\u017e b\u011b\u017en\u00fd hlin\u00edk 5052.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dobr\u00fd v\u00fdrobce kovov\u00fdch d\u00edl\u016f kov m\u00edrn\u011b p\u0159eh\u00fdb\u00e1, proto\u017ee po\u010d\u00edt\u00e1 s t\u00edm, \u017ee se vr\u00e1t\u00ed p\u0159esn\u011b do po\u017eadovan\u00e9ho \u00fahlu. Nikdy se v\u0161ak nejedn\u00e1 o dokonalou v\u011bdu. Mus\u00edte po\u010d\u00edtat s touto p\u0159irozenou odchylkou.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I kdy\u017e je v\u00e1\u0161 d\u00edl dokonale vy\u0159\u00edznut\u00fd a ohnut\u00fd, jeden posledn\u00ed krok zni\u010d\u00ed v\u00edce d\u00edl\u016f s dokonal\u00fdmi rozm\u011bry ne\u017e cokoli jin\u00e9ho: povrchov\u00e1 \u00faprava.<\/p>\n\n\n\n<h2 id=\"h-don-t-forget-the-paint-finishes-change-everything\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Dont_Forget_the_Paint_Finishes_Change_Everything\"><\/span>Nezapome\u0148te na barvu: Povrchov\u00e1 \u00faprava m\u011bn\u00ed v\u0161echno<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Navrhli jste dokonal\u00fd d\u00edl. V d\u00edln\u011b ho bezchybn\u011b vyrobili. Oh\u00fdb\u00e1n\u00ed je p\u0159esn\u00e9. Potom ho po\u0161lete na lakov\u00e1n\u00ed.<\/p>\n\n\n\n<h3 id=\"h-the-powder-coat-trap\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Powder_Coat_Trap\"><\/span>Past s pr\u00e1\u0161kov\u00fdm lakem<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed<\/strong> jedn\u00e1 se o proces povrchov\u00e9 \u00fapravy, p\u0159i kter\u00e9m se p\u0159\u00edmo na kovov\u00e9 povrchy nan\u00e1\u0161\u00ed a vypaluje siln\u00e1 vrstva tekut\u00e9ho plastu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pr\u00e1v\u011b tato p\u0159idan\u00e1 tlou\u0161\u0165ka p\u0159edstavuje \u201cpast pr\u00e1\u0161kov\u00e9ho lakov\u00e1n\u00ed\u201d, do kter\u00e9 se chyt\u00ed tolik konstrukt\u00e9r\u016f. Pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed obvykle p\u0159id\u00e1v\u00e1 asi 2 a\u017e 3 mils (0,05 a\u017e 0,08 mm) na ka\u017ed\u00fd povrch. Mluv\u00edme zde o p\u0159id\u00e1n\u00ed materi\u00e1lu na ka\u017ed\u00fd jednotliv\u00fd povrch va\u0161eho d\u00edlu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud m\u00e1te otvor s \u00fazk\u00fdmi tolerancemi, barva zp\u016fsob\u00ed zmen\u0161en\u00ed jeho pr\u016fm\u011bru. Pokud m\u00e1te kovov\u00fd v\u00fdstupek, kter\u00fd m\u00e1 zasunout do dr\u00e1\u017eky, barva ho zv\u011bt\u0161\u00ed natolik, \u017ee se tam nevejde.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chcete-li tento probl\u00e9m vy\u0159e\u0161it, m\u00e1te dv\u011b mo\u017enosti. Bu\u010f n\u00e1m mus\u00edte p\u0159ed lakov\u00e1n\u00edm sd\u011blit, abychom tyto kritick\u00e9 otvory ucpali, nebo mus\u00edte otvory od sam\u00e9ho za\u010d\u00e1tku navrhnout o n\u011bco v\u011bt\u0161\u00ed.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Worker-in-protective-suit-powder-coating-hanging-metal-parts-1024x576.jpg\" alt=\"Pracovn\u00edk v ochrann\u00e9m od\u011bvu prov\u00e1d\u011bj\u00edc\u00ed pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed zav\u011b\u0161en\u00fdch kovov\u00fdch d\u00edl\u016f\" class=\"wp-image-11081\" srcset=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Worker-in-protective-suit-powder-coating-hanging-metal-parts-1024x576.jpg 1024w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Worker-in-protective-suit-powder-coating-hanging-metal-parts-300x169.jpg 300w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Worker-in-protective-suit-powder-coating-hanging-metal-parts-768x432.jpg 768w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Worker-in-protective-suit-powder-coating-hanging-metal-parts-1536x864.jpg 1536w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Worker-in-protective-suit-powder-coating-hanging-metal-parts-18x10.jpg 18w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Worker-in-protective-suit-powder-coating-hanging-metal-parts.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 id=\"h-why-do-sheet-metal-assemblies-fail\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Do_Sheet_Metal_Assemblies_Fail\"><\/span>Pro\u010d doch\u00e1z\u00ed k poruch\u00e1m plechov\u00fdch sestav?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>S\u010d\u00edt\u00e1n\u00ed toleranc\u00ed<\/strong> Jedn\u00e1 se o kumulativn\u00ed hromad\u011bn\u00ed drobn\u00fdch, jednotliv\u00fdch v\u00fdrobn\u00edch chyb nap\u0159\u00ed\u010d n\u011bkolika ohyby \u010di prvky v r\u00e1mci jednoho d\u00edlu. Je to nejz\u00e1ludn\u011bj\u0161\u00ed p\u0159\u00ed\u010dina selh\u00e1n\u00ed va\u0161ich sestav.<\/p>\n\n\n\n<h3 id=\"h-how-errors-add-up-across-multiple-bends\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Errors_Add_Up_Across_Multiple_Bends\"><\/span>Jak se chyby s\u010d\u00edtaj\u00ed v n\u011bkolika ohybech<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">I kdy\u017e v\u00e1\u0161 v\u00fdrobce bude v ka\u017ed\u00e9m jednotliv\u00e9m kroku p\u0159esn\u011b dodr\u017eovat v\u00e1mi stanoven\u00e9 tolerance, va\u0161e d\u00edly se kv\u016fli tomuto efektu vrstven\u00ed p\u0159esto k sob\u011b nehod\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i v\u00fdrob\u011b kovov\u00e9 sk\u0159\u00ed\u0148ky s ploch\u00fdm v\u00edkem laser vyzna\u010d\u00ed mont\u00e1\u017en\u00ed otvory na ploch\u00e9m plechu s dokonalou p\u0159esnost\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Samotn\u00e1 sk\u0159\u00ed\u0148ka je v\u0161ak oh\u00fdban\u00e1 do ur\u010dit\u00e9ho tvaru. Mont\u00e1\u017en\u00ed otvory na sk\u0159\u00ed\u0148ce se nach\u00e1zej\u00ed na p\u0159\u00edrub\u00e1ch, kter\u00e9 jsou od sebe odd\u011bleny t\u0159emi \u010di \u010dty\u0159mi r\u016fzn\u00fdmi ohyby. Pokud se ka\u017ed\u00fd ohyb li\u0161\u00ed jen o nepatrn\u00fd zlomek stupn\u011b, tyto chyby se s\u010d\u00edtaj\u00ed. Kumuluj\u00ed se.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ne\u017e stroj provede posledn\u00ed ohyb, poloha otvoru se posune. Dokonale rovn\u00e9 v\u00edko u\u017e nebude l\u00edcovat s ohnutou krabic\u00ed. Z\u016fstanete tak s \u0161roubem v ruce, kter\u00fd do otvoru nevejde.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuto chybu zp\u016fsobenou ohybem nelze zcela odstranit. M\u016f\u017eete v\u0161ak vyu\u017e\u00edt geni\u00e1ln\u00ed konstruk\u010dn\u00ed trik, d\u00edky kter\u00e9mu bude zcela bezv\u00fdznamn\u00e1.<\/p>\n\n\n\n<h2 id=\"h-the-slot-strategy-for-painless-assembly\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Slot_Strategy_for_Painless_Assembly\"><\/span>Strategie pro snadnou mont\u00e1\u017e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Na str\u00e1nk\u00e1ch <strong>Strategie pro v\u00fdhern\u00ed automaty<\/strong> jedn\u00e1 se o konstruk\u010dn\u00ed postup, p\u0159i kter\u00e9m se m\u00edsto standardn\u00edch kulat\u00fdch otvor\u016f pro upevn\u011bn\u00ed kov\u00e1n\u00ed pou\u017e\u00edvaj\u00ed prot\u00e1hl\u00e9 ov\u00e1ln\u00e9 dr\u00e1\u017eky.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pou\u017eit\u00edm pod\u00e9ln\u00e9 dr\u00e1\u017eky vytvo\u0159\u00edte p\u0159\u00edmo v d\u00edlu fyzick\u00fd prostor pro pohyb. A pr\u00e1v\u011b takto strategie s dr\u00e1\u017ekami \u0159e\u0161\u00ed probl\u00e9m s vrstven\u00edm a zachra\u0148uje situaci:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pokud je ohyb m\u00edrn\u011b nep\u0159esn\u00fd, poloha otvoru se p\u0159irozen\u011b posune.<\/li>\n\n\n\n<li>Jeliko\u017e je otvor ov\u00e1ln\u00fd, \u0161roub se j\u00edm p\u0159esto prot\u00e1hne.<\/li>\n\n\n\n<li>Zaru\u010dujete, \u017ee se va\u0161e sou\u010d\u00e1stky na mont\u00e1\u017en\u00ed lince k sob\u011b bez probl\u00e9m\u016f spoj\u00ed.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Je to jednoduch\u00fd konstruk\u010dn\u00ed trik. \u00dapln\u011b eliminuje probl\u00e9my se s\u010d\u00edt\u00e1n\u00edm toleranc\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dr\u00e1\u017eky jsou skv\u011bl\u00fdm zp\u016fsobem, jak obej\u00edt syst\u00e9m a usnadnit mont\u00e1\u017e. Existuje v\u0161ak n\u011bkolik dal\u0161\u00edch b\u011b\u017en\u00fdch prvk\u016f plechov\u00fdch d\u00edl\u016f, u nich\u017e plat\u00ed p\u0159\u00edsn\u00e1 pravidla, kter\u00e1 prost\u011b nelze obej\u00edt.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Bent-metal-bracket-featuring-clear-elongated-mounting-slots-1024x576.jpg\" alt=\"Ohnut\u00e1 kovov\u00e1 konzola s jasn\u011b viditeln\u00fdmi podlouhl\u00fdmi mont\u00e1\u017en\u00edmi dr\u00e1\u017ekami\" class=\"wp-image-11083\" srcset=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Bent-metal-bracket-featuring-clear-elongated-mounting-slots-1024x576.jpg 1024w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Bent-metal-bracket-featuring-clear-elongated-mounting-slots-300x169.jpg 300w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Bent-metal-bracket-featuring-clear-elongated-mounting-slots-768x432.jpg 768w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Bent-metal-bracket-featuring-clear-elongated-mounting-slots-1536x864.jpg 1536w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Bent-metal-bracket-featuring-clear-elongated-mounting-slots-18x10.jpg 18w, https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Bent-metal-bracket-featuring-clear-elongated-mounting-slots.jpg 1920w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 id=\"h-design-cheatsheets-hems-curls-and-countersinks\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Design_Cheatsheets_Hems_Curls_and_Countersinks\"><\/span>N\u00e1vody k designu: Lemov\u00e1n\u00ed, zvln\u011bn\u00ed a zahlouben\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Krom\u011b mont\u00e1\u017en\u00edch otvor\u016f se na n\u011bkter\u00e9 dal\u0161\u00ed b\u011b\u017en\u00e9 prvky plechov\u00fdch d\u00edl\u016f vztahuj\u00ed p\u0159\u00edsn\u00e1 pravidla. Pokud je nebudete dodr\u017eovat, va\u0161e d\u00edly se zdeformuj\u00ed nebo zlom\u00ed.<\/p>\n\n\n\n<h3 id=\"h-countersink-rules\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Countersink_Rules\"><\/span>Pravidla pro zahlouben\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Zahlubova\u010de<\/strong> jsou do kovu vy\u0159\u00edznut\u00e9 ku\u017eelovit\u00e9 otvory, d\u00edky nim\u017e jsou hlavy \u0161roub\u016f dokonale zarovn\u00e1ny s povrchem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vypadaj\u00ed skv\u011ble, ale mus\u00edte je dr\u017eet v dostate\u010dn\u00e9 vzd\u00e1lenosti od ohyb\u016f. Pokud um\u00edst\u00edte zahlouben\u00ed p\u0159\u00edli\u0161 bl\u00edzko k ohybov\u00e9 hran\u011b, kov se p\u0159i oh\u00fdb\u00e1n\u00ed nat\u00e1hne. Dokonale kulat\u00fd otvor se zdeformuje do nevzhledn\u00e9ho ov\u00e1lu. \u0160roub se tam nikdy nevejde. Zahlouben\u00ed v\u017edy um\u00edst\u011bte ve vzd\u00e1lenosti odpov\u00eddaj\u00edc\u00ed alespo\u0148 trojn\u00e1sobku tlou\u0161\u0165ky materi\u00e1lu od jak\u00e9hokoli ohybu.<\/p>\n\n\n\n<h3 id=\"h-hems-and-curls\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Hems_and_Curls\"><\/span>Lemy a kudrlinky<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Lemy a vol\u00e1ny<\/strong> jsou kovov\u00e9 hrany, kter\u00e9 byly ohnuty dovnit\u0159, aby zakryly ostr\u00e9 rohy a zajistily, \u017ee se d\u00edl\u016f lze bezpe\u010dn\u011b dot\u00fdkat.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kov v\u0161ak nelze jednodu\u0161e slo\u017eit tak, aby byl \u00fapln\u011b rovn\u00fd. Pokud lem p\u0159\u00edli\u0161 siln\u011b stla\u010d\u00edte, kov praskne pr\u00e1v\u011b v m\u00edst\u011b spoje. Bude to vypadat hrozn\u011b a ztrat\u00ed ve\u0161kerou pevnost.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">U ohyb\u016f a zvln\u011bn\u00ed je nutn\u00e9 dodr\u017eet minim\u00e1ln\u00ed vnit\u0159n\u00ed polom\u011br. Dobr\u00fdm pravidlem je, aby vnit\u0159n\u00ed mezera odpov\u00eddala tlou\u0161\u0165ce samotn\u00e9ho kovu. T\u00edm se zajist\u00ed pevnost materi\u00e1lu a zabr\u00e1n\u00ed se vzniku trhlin.<\/p>\n\n\n\n<h2 id=\"h-conclusion\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Z\u00e1v\u011br<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ka\u017ed\u00e1 v\u00fdrobn\u00ed d\u00edlna pou\u017e\u00edv\u00e1 jin\u00e9 stroje. Nem\u016f\u017eete p\u0159edpokl\u00e1dat, \u017ee v\u00e1m \u010dtou my\u0161lenky. A\u0165 u\u017e se rozhodnete spolupracovat s na\u0161\u00edm t\u00fdmem ve spole\u010dnosti ShincoFab nebo s jin\u00fdm v\u00fdrobcem, p\u0159ed zad\u00e1n\u00edm objedn\u00e1vky polo\u017ete sv\u00e9mu v\u00fdrobci tyto t\u0159i jednoduch\u00e9 ot\u00e1zky:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u201cPou\u017e\u00edv\u00e1te standardn\u00ed oboustrann\u00e9 tolerance?\u201d<\/strong> Ujist\u011bte se, \u017ee mluv\u00edte stejn\u00fdm matematick\u00fdm jazykem. Ov\u011b\u0159te, zda jejich v\u00fdchoz\u00ed nastaven\u00ed p\u0159edstavuje variantu se stejn\u00fdm znam\u00e9nkem plus a minus.<\/li>\n\n\n\n<li><strong>\u201cJak\u00e1 je va\u0161e standardn\u00ed sr\u00e1\u017eka za ohyb?\u201d<\/strong> Ka\u017ed\u00fd oh\u00fdba\u010d plechu oh\u00fdb\u00e1 kov trochu jinak. Nechte si od nich sd\u011blit konkr\u00e9tn\u00ed hodnoty, aby va\u0161e v\u00fdpo\u010dty rozlo\u017een\u00e9ho vzoru skute\u010dn\u011b odpov\u00eddaly jejich za\u0159\u00edzen\u00ed (nap\u0159. aby odpov\u00eddaly jejich K-faktoru).<\/li>\n\n\n\n<li><strong>\u201cProv\u00e1d\u00edte korekci pro pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed, nebo to m\u00e1m ud\u011blat j\u00e1?\u201d<\/strong> Ujasn\u011bte si, kdo je zodpov\u011bdn\u00fd za kontrolu tlou\u0161\u0165ky n\u00e1t\u011bru. Vy\u0159e\u0161te to je\u0161t\u011b p\u0159edt\u00edm, ne\u017e se d\u00edly dostanou do pece.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e polo\u017e\u00edte tyto ot\u00e1zky, zah\u00e1j\u00edte dialog. Odhal\u00edte tak n\u00e1kladn\u00e9 chyby je\u0161t\u011b p\u0159edt\u00edm, ne\u017e n\u011bkdo za\u010dne \u0159ezat jedin\u00fd plech.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 id=\"h-appendix-sheet-metal-tolerance-reference-tables\" class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Appendix_Sheet_Metal_Tolerance_Reference_Tables\"><\/span>P\u0159\u00edloha: Referen\u010dn\u00ed tabulky toleranc\u00ed plech\u016f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00ed\u017ee uveden\u00e9 referen\u010dn\u00ed tabulky shrnuj\u00ed \u00fadaje o toleranc\u00edch z norem ISO 2768, JIS B 0408\/0410 a pr\u016fmyslov\u00fdch standard\u016f do jedin\u00e9ho p\u0159ehledn\u00e9ho pr\u016fvodce. Pou\u017e\u00edvejte je spole\u010dn\u011b s v\u00fdkresem k ov\u011b\u0159en\u00ed, zda se v\u0161echny rozm\u011bry nach\u00e1zej\u00ed v rozmez\u00ed, kter\u00e9 lze spolehliv\u011b dos\u00e1hnout pomoc\u00ed standardn\u00edho d\u00edlensk\u00e9ho vybaven\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159\u00edloha ve form\u00e1tu PDF se zab\u00fdv\u00e1 p\u011bti oblastmi:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>ISO 2768 Obecn\u00e9 tolerance<\/strong> \u2014 Tolerance line\u00e1rnosti, \u00fahlovosti, rovinnosti, kolmosti, symetrie a zkosen\u00ed pro v\u0161echny \u010dty\u0159i t\u0159\u00eddy p\u0159esnosti (f, m, c, v).<\/li>\n\n\n\n<li><strong>Tolerance v\u00fdrobn\u00edch parametr\u016f<\/strong> \u2014 V\u00fdchoz\u00ed hodnoty zalo\u017een\u00e9 na prvc\u00edch (\u0161ikm\u00e1 hrana k otvoru, tvarovan\u00e1 hrana k otvoru, p\u0159es ohyby, celkov\u011b tvarovan\u00fd d\u00edl) v milimetrech i palc\u00edch, v souladu s pr\u016fmyslov\u00fdmi normami ASM EF-001.<\/li>\n\n\n\n<li><strong>Tolerance p\u0159i lisov\u00e1n\u00ed a st\u0159\u00edh\u00e1n\u00ed<\/strong> \u2014 Tolerance pro d\u011brov\u00e1n\u00ed, oh\u00fdb\u00e1n\u00ed, ta\u017een\u00ed a \u0161\u00ed\u0159ku \u0159ezu podle t\u0159\u00eddy (JIS B 0408 \/ JIS B 0410), v\u010detn\u011b rovinnosti a kolmosti u st\u0159\u00edhan\u00fdch plech\u016f.<\/li>\n\n\n\n<li><strong>Tabulka tlou\u0161\u0165ek materi\u00e1l\u016f<\/strong> \u2014 Jmenovit\u00e1 tlou\u0161\u0165ka a oboustrann\u00e9 tolerance pro m\u011b\u0159idla 3\u201330 u p\u011bti materi\u00e1l\u016f: za tepla v\u00e1lcovan\u00e1 ocel, za studena v\u00e1lcovan\u00e1 ocel, pozinkovan\u00e1 ocel, nerezov\u00e1 ocel a hlin\u00edk.<\/li>\n\n\n\n<li><strong>Tolerance plech\u016f z nerezov\u00e9 oceli<\/strong> \u2014 Rozm\u011bry (d\u00e9lka\/\u0161\u00ed\u0159ka), prohnut\u00ed, rovinnost a standardn\u00ed tolerance tlou\u0161\u0165ky u ploch\u00fdch v\u00e1lcovan\u00fdch nerezov\u00fdch plech\u016f (pr\u016fmyslov\u00fd standard ATI).<\/li>\n<\/ol>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Sheet-Metal-Tolerance-Reference.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Vlo\u017eit z Sheet Metal Tolerance Reference.\"><\/object><a id=\"wp-block-file--media-a25c750c-a4ff-40bc-9484-8db0a913ae02\" href=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Sheet-Metal-Tolerance-Reference.pdf\">P\u0159ehled toleranc\u00ed plech\u016f<\/a><a href=\"https:\/\/shincofab.com\/wp-content\/uploads\/2026\/06\/Sheet-Metal-Tolerance-Reference.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-a25c750c-a4ff-40bc-9484-8db0a913ae02\">St\u00e1hnout<\/a><\/div>","protected":false},"excerpt":{"rendered":"<p>If you have ever received a batch of parts that refused to bolt together, you know how expensive bad sheet metal tolerances can be. At ShincoFab, we process tons of raw steel and aluminum every month. I have spent years working on the factory floor, standing between our laser cutters and press brakes, fixing broken [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":11075,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11060","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6.1 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Ultimate Sheet Metal Tolerances Guide From the Shop Floor - ShincoFab<\/title>\n<meta name=\"description\" content=\"A practical sheet metal tolerances guide by ShincoFab. 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