{"id":9691,"date":"2025-06-30T02:51:55","date_gmt":"2025-06-30T02:51:55","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=9691"},"modified":"2025-06-30T02:51:55","modified_gmt":"2025-06-30T02:51:55","slug":"maji-hlinikove-vytlacovaci-profily-problemy-s-ostrymi-rohy","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/do-aluminum-extrusion-profiles-struggle-with-sharp-corners\/","title":{"rendered":"Maj\u00ed hlin\u00edkov\u00e9 lisovan\u00e9 profily probl\u00e9my s ostr\u00fdmi rohy?"},"content":{"rendered":"

\"hlin\u00edkov\u00fd
Ostr\u00e1 manipulace s rohy v konstrukci hlin\u00edkov\u00fdch vytla\u010dovac\u00edch profil\u016f<\/figcaption><\/figure>\n<\/p>\n

C\u00edt\u00edm va\u0161i bolest p\u0159i \u0159e\u0161en\u00ed hlin\u00edkov\u00fdch roh\u016f. Ostr\u00e9 \u00fahly \u010dasto p\u0159i vytla\u010dov\u00e1n\u00ed praskaj\u00ed, pokud se s nimi nezach\u00e1z\u00ed spr\u00e1vn\u011b.<\/p>\n

Ano. Extr\u00e9mn\u011b ostr\u00e9 rohy mohou zp\u016fsobit prask\u00e1n\u00ed nebo povrchov\u00e9 vady, pokud nejsou matrice a proces optimalizov\u00e1ny.<\/strong><\/p>\n

To m\u016f\u017ee zpomalit v\u00fdrobu. Pod\u00edvejme se, pro\u010d je t\u0159eba p\u0159i vytla\u010dov\u00e1n\u00ed db\u00e1t na rohy.<\/p>\n

Mohou extr\u00e9mn\u00ed rozd\u00edly v tlou\u0161\u0165ce st\u011bny zp\u016fsobit vady profilu?<\/h2>\n

\"hlin\u00edkov\u00fd
\u0158\u00edzen\u00ed zm\u011bn tlou\u0161\u0165ky st\u011bny p\u0159i vytla\u010dov\u00e1n\u00ed hlin\u00edku<\/figcaption><\/figure>\n<\/p>\n

Jednou jsem pracoval na projektu se st\u011bnami o tlou\u0161\u0165ce od 1 do 20 mm ve stejn\u00e9m profilu. To p\u0159ineslo velk\u00e9 probl\u00e9my.<\/p>\n

Ano. Velk\u00e9 rozd\u00edly v tlou\u0161\u0165ce st\u011bny mohou v\u00e9st k vad\u00e1m, jako je deformace, vnit\u0159n\u00ed dutiny nebo nerovnom\u011brn\u00fd tok b\u011bhem vytla\u010dov\u00e1n\u00ed.<\/strong><\/p>\n

N\u00ed\u017ee se s v\u00e1mi pod\u011bl\u00edm o technick\u00e9 d\u016fvody a \u0159e\u0161en\u00ed.<\/p>\n

Pro\u010d je d\u016fle\u017eit\u00e1 zm\u011bna tlou\u0161\u0165ky st\u011bny<\/h3>\n

Profily protla\u010duj\u00ed hlin\u00edk matric\u00ed v jednom kroku. Nerovnom\u011brn\u00e1 tlou\u0161\u0165ka znamen\u00e1, \u017ee n\u011bkter\u00e9 \u00faseky prot\u00e9kaj\u00ed rychleji. Siln\u011bj\u0161\u00ed oblasti se protla\u010duj\u00ed pomaleji. Tato nerovnov\u00e1ha nam\u00e1h\u00e1 kov. To m\u016f\u017ee v\u00e9st k:<\/p>\n

    \n
  • Vln\u011bn\u00ed povrchu <\/li>\n
  • Vnit\u0159n\u00ed dutiny <\/li>\n
  • Mimo?kulat\u00e9 \u00faseky<\/li>\n<\/ul>\n

    Nap\u0159\u00edklad jsem vid\u011bl dutiny v siln\u00fdch profilech, kdy se kov nevyplnil rovnom\u011brn\u011b. Oprava si vy\u017e\u00e1dala dal\u0161\u00ed obr\u00e1b\u011bn\u00ed a ztr\u00e1tu \u010dasu.<\/p>\n

    Jak tento probl\u00e9m zvl\u00e1d\u00e1me<\/h3>\n

    Siln\u00e9 a tenk\u00e9 \u010d\u00e1sti rozd\u011bluji \u017eebry nebo p\u00e1sy. Ty pom\u00e1haj\u00ed vyrovn\u00e1vat tok. Upravujeme tak\u00e9 rychlost lisov\u00e1n\u00ed a teplotn\u00ed z\u00f3nu.<\/p>\n

    P\u0159ed fin\u00e1ln\u00ed v\u00fdrobou prov\u00e1d\u00edme:<\/p>\n\n\n\n\n\n\n\n
    Test<\/th>\n\u00da\u010del<\/th>\n<\/tr>\n<\/thead>\n
    Simulace<\/td>\nP\u0159edv\u00edd\u00e1n\u00ed toku kovu a odhalov\u00e1n\u00ed probl\u00e9m\u016f<\/td>\n<\/tr>\n
    Pilotn\u00ed vytla\u010dov\u00e1n\u00ed<\/td>\nOv\u011b\u0159en\u00ed kvality povrchu<\/td>\n<\/tr>\n
    Die tweak<\/td>\nNastaven\u00ed p\u0159ed pln\u00fdm spu\u0161t\u011bn\u00edm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Po zku\u0161ebn\u00edm provozu vylep\u0161ujeme matrici nebo konstrukci, dokud vady nezmiz\u00ed. Zabere to \u010das, ale dlouhodob\u011b to \u0161et\u0159\u00ed n\u00e1klady.<\/p>\n

    <\/svg> Velk\u00e9 rozd\u00edly v tlou\u0161\u0165ce st\u011bny zp\u016fsobuj\u00ed nerovnom\u011brn\u00fd tok kovu p\u0159i vytla\u010dov\u00e1n\u00ed.<\/b>Pravda<\/span><\/p>

    Siln\u011bj\u0161\u00ed plochy te\u010dou pomaleji, co\u017e zp\u016fsobuje vady, jako jsou dutiny a deformace.<\/p><\/div>\n

    <\/svg> U modern\u00edch vytla\u010dovac\u00edch stroj\u016f nep\u016fsob\u00ed rozd\u00edly v tlou\u0161\u0165ce st\u011bny \u017e\u00e1dn\u00e9 probl\u00e9my.<\/b>False<\/span><\/p>

    I modern\u00ed stroje pot\u0159ebuj\u00ed pe\u010dlivou konstrukci a nastaven\u00ed, aby zvl\u00e1dly extr\u00e9mn\u00ed odchylky.<\/p><\/div>\n

    Existuj\u00ed omezen\u00ed velikosti na z\u00e1klad\u011b kapacity vytla\u010dovac\u00edho lisu?<\/h2>\n

    \"\u0161irok\u00fd
    Velk\u00e9 profily vy\u017eaduj\u00ed vytla\u010dovac\u00ed lisy s vysokou ton\u00e1\u017e\u00ed<\/figcaption><\/figure>\n<\/p>\n

    Jednou jsem zkou\u0161el profil o \u0161\u00ed\u0159ce 400 mm na lisu o hmotnosti 4000 tun. Sotva to \u0161lo, ale a\u017e po \u00faprav\u011b matrice a polotovaru.<\/p>\n

    Ano. Kapacita lisu a velikost polotovaru ur\u010duj\u00ed horn\u00ed hranice rozm\u011br\u016f a hmotnosti profilu.<\/strong><\/p>\n

    Dovolte mi, abych se v\u011bnoval t\u011bmto omezen\u00edm a tomu, jak je obej\u00edt.<\/p>\n

    Kapacita lisu a velikost polotovaru<\/h3>\n

    V\u00fdkon vytla\u010dovac\u00edho lisu se ud\u00e1v\u00e1 v tun\u00e1ch s\u00edly. B\u011b\u017en\u00e9 velikosti:<\/p>\n\n\n\n\n\n\n\n
    Velikost tisku<\/th>\nMaxim\u00e1ln\u00ed \u0161\u00ed\u0159ka profilu<\/th>\n<\/tr>\n<\/thead>\n
    500?tun<\/td>\n~100?mm<\/td>\n<\/tr>\n
    2000?tun<\/td>\n~250?mm<\/td>\n<\/tr>\n
    4500?tun<\/td>\n~400?mm+<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Ty jsou drsn\u00e9. Skute\u010dn\u00e1 \u0161\u00ed\u0159ka z\u00e1vis\u00ed na tvaru profilu a tlou\u0161\u0165ce st\u011bny.<\/p>\n

    Vybereme tak\u00e9 poleno (obvykle 6?m dlouh\u00e9). \u0160ir\u0161\u00ed profily pot\u0159ebuj\u00ed v\u011bt\u0161\u00ed polena. P\u0159edlo\u017eka mus\u00ed \u010dist\u011b vypl\u0148ovat matrici. Pokud to nen\u00ed mo\u017en\u00e9, rozd\u011bl\u00edme profil na dva v\u00fdlisky a sva\u0159\u00edme nebo mechanicky spoj\u00edme.<\/p>\n

    Jak zpracov\u00e1v\u00e1me velk\u00e9 profily<\/h3>\n
      \n
    • Pou\u017eijte nejv\u011bt\u0161\u00ed dostupn\u00fd lis <\/li>\n
    • Designov\u00e9 profily s modul\u00e1rn\u00edmi sekcemi <\/li>\n
    • Rozd\u011blen\u00ed profil\u016f a jejich pozd\u011bj\u0161\u00ed spojen\u00ed, kdy\u017e jedno stisknut\u00ed nesta\u010d\u00ed <\/li>\n<\/ul>\n

      T\u00edmto zp\u016fsobem st\u00e1le spl\u0148ujeme specifikace klienta, ani\u017e bychom riskovali p\u0159et\u00ed\u017een\u00ed tisku.<\/p>\n

      <\/svg> Ton\u00e1\u017e vytla\u010dovac\u00edho lisu omezuje maxim\u00e1ln\u00ed \u0161\u00ed\u0159ku a slo\u017eitost profilu.<\/b>Pravda<\/span><\/p>

      Lisovac\u00ed s\u00edla mus\u00ed odpov\u00eddat pr\u016f\u0159ezu profilu; nedostate\u010dn\u00e1 kapacita m\u016f\u017ee zp\u016fsobit vady nebo selh\u00e1n\u00ed lisu.<\/p><\/div>\n

      <\/svg> Na mal\u00fdch tiskov\u00fdch stroj\u00edch m\u016f\u017eete d\u00edky sn\u00ed\u017een\u00ed rychlosti vytv\u00e1\u0159et neomezen\u011b \u0161irok\u00e9 profily.<\/b>False<\/span><\/p>

      Zpomalen\u00ed rychlosti nep\u0159ekon\u00e1 fyzik\u00e1ln\u00ed limity ton\u00e1\u017ee a m\u016f\u017ee zp\u016fsobit zmetky nebo po\u0161kozen\u00ed lis\u016f.<\/p><\/div>\n

      Je slo\u017eitost matrice p\u0159ek\u00e1\u017ekou pro slo\u017eit\u00e9 profily?<\/h2>\n

      \"hlin\u00edkov\u00e1
      Komplexn\u00ed z\u00e1pustky pro jemn\u00e9 hlin\u00edkov\u00e9 profily<\/figcaption><\/figure>\n<\/p>\n

      Setkal jsem se s t\u00edm, kdy\u017e z\u00e1kazn\u00edk cht\u011bl profil s otvory, textem a 0,5mm st\u011bnami \u017eeber. V\u00fdlisek byl velmi slo\u017eit\u00fd.<\/p>\n

      Ano. Slo\u017eit\u00e9 tvary matric zvy\u0161uj\u00ed n\u00e1klady a technick\u00e1 rizika, ale kvalifikovan\u00fd n\u00e1vrh a zku\u0161enosti je mohou zvl\u00e1dnout.<\/strong><\/p>\n

      N\u00ed\u017ee vysv\u011btluji limity a na\u0161e \u0159e\u0161en\u00ed.<\/p>\n

      V\u00fdzvy spojen\u00e9 se slo\u017eit\u00fdmi matricemi<\/h3>\n

      Slo\u017eit\u00e9 profily mohou obsahovat text, otvory nebo t\u011bsn\u00e1 \u017eebra. Tyto prvky zp\u016fsobuj\u00ed:<\/p>\n

        \n
      • Vysok\u00e9 n\u00e1klady na v\u00fdrobu matric <\/li>\n
      • Riziko pr\u00e1\u0161kov\u00e9ho kovu v tenk\u00fdch p\u00e1sech <\/li>\n
      • Vy\u0161\u0161\u00ed pot\u0159ebn\u00e1 s\u00edla a nam\u00e1h\u00e1n\u00ed matrice <\/li>\n
      • V\u011bt\u0161\u00ed riziko z\u00e1vad a opot\u0159eben\u00ed matrice<\/li>\n<\/ul>\n

        U profilu s 10 jemn\u00fdmi \u017eebry o tlou\u0161\u0165ce pod 0,5 mm jsme zaznamenali p\u0159ed\u010dasn\u00e9 opot\u0159eben\u00ed matrice. Bylo nutn\u00e9 jej \u010dasto opravovat, co\u017e zvy\u0161ovalo n\u00e1klady a prostoje.<\/p>\n

        Jak p\u0159ekon\u00e1v\u00e1me slo\u017eitost um\u00edr\u00e1n\u00ed<\/h3>\n

        Spolupracuji s na\u0161\u00edm t\u00fdmem design\u00e9r\u016f na:<\/p>\n

          \n
        1. Zjednodu\u0161en\u00ed funkc\u00ed, kde je to mo\u017en\u00e9 <\/li>\n
        2. Pou\u017eit\u00ed v\u00edcestup\u0148ov\u00fdch nebo segmentov\u00fdch lisovac\u00edch forem <\/li>\n
        3. Pou\u017eit\u00ed pevn\u011bj\u0161\u00edch n\u00e1strojov\u00fdch ocel\u00ed <\/li>\n
        4. Simulace pr\u016ftoku a nap\u011bt\u00ed p\u0159ed v\u00fdrobou <\/li>\n<\/ol>\n

          Po otestov\u00e1n\u00ed provedeme zku\u0161ebn\u00ed test a rychle jej opakujeme. Tento proces zm\u00edr\u0148uje slo\u017eitost kostek, ani\u017e by byl ob\u011btov\u00e1n design.<\/p>\n

          P\u0159\u00edklad p\u0159\u00edpadu<\/h3>\n

          Z\u00e1kazn\u00edk pot\u0159eboval slo\u017eit\u00fd profil chladi\u010de s \u017eebry o pr\u016fm\u011bru 0,8 mm. Pou\u017eili jsme:<\/p>\n

            \n
          • V\u00edcedutinov\u00e1 matrice <\/li>\n
          • Vysoce kvalitn\u00ed n\u00e1strojov\u00e1 ocel <\/li>\n
          • Simulace proud\u011bn\u00ed <\/li>\n
          • Zku\u0161ebn\u00ed vytla\u010dov\u00e1n\u00ed a le\u0161t\u011bn\u00ed z\u00e1pustek<\/li>\n<\/ul>\n

            Dodali jsme bezchybn\u00e9 v\u00fdrobn\u00ed s\u00e9rie. Sice to bylo dra\u017e\u0161\u00ed, ale u\u0161et\u0159ilo to \u010das a zlep\u0161ilo kvalitu.<\/p>\n

            <\/svg> Slo\u017eit\u00e9 tvary matric n\u00e1m v\u017edy br\u00e1n\u00ed ve v\u00fdrob\u011b slo\u017eit\u00fdch profil\u016f.<\/b>False<\/span><\/p>

            Slo\u017eit\u00e9 lisovac\u00ed formy sice zvy\u0161uj\u00ed n\u00e1klady a technick\u00e1 rizika, ale d\u00edky chytr\u00e9mu designu a v\u00edcestup\u0148ov\u00e9mu obr\u00e1b\u011bn\u00ed m\u016f\u017eeme profily vyr\u00e1b\u011bt.<\/p><\/div>\n

            <\/svg> Slo\u017eitost formy ovliv\u0148uje n\u00e1klady, \u017eivotnost formy a kvalitu vytla\u010dov\u00e1n\u00ed.<\/b>Pravda<\/span><\/p>

            Slo\u017eit\u011bj\u0161\u00ed z\u00e1pustky se h\u016f\u0159e vyr\u00e1b\u011bj\u00ed, rychleji se opot\u0159ebov\u00e1vaj\u00ed a vy\u017eaduj\u00ed pe\u010dlivou kontrolu procesu.<\/p><\/div>\n

            Z\u00e1v\u011br<\/h2>\n

            Pod\u011blil jsem se o to, jak rohy, tlou\u0161\u0165ka st\u011bny, velikost lisu a slo\u017eitost matrice ovliv\u0148uj\u00ed vytla\u010dov\u00e1n\u00ed hlin\u00edku. D\u00edky odborn\u00e9mu n\u00e1vrhu a \u0159\u00edzen\u00ed procesu m\u016f\u017eeme tyto v\u00fdzvy dob\u0159e zvl\u00e1dnout.<\/p>","protected":false},"excerpt":{"rendered":"

            Sharp corner handling in aluminum extrusion profile design I feel your pain when dealing with aluminum corners. Sharp angles often crack during extrusion if not handled right. Yes. Extremely sharp corners can cause cracking or surface defects if the die and process are not optimized. That can slow down production. Let\u2019s explore why corners need […]<\/p>\n","protected":false},"author":6,"featured_media":7243,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[1],"tags":[],"class_list":["post-9691","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-custom-mold"],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/9691","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/comments?post=9691"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/9691\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/7243"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=9691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=9691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=9691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}