{"id":26224,"date":"2025-11-20T16:20:24","date_gmt":"2025-11-20T08:20:24","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=26224"},"modified":"2025-11-20T16:20:24","modified_gmt":"2025-11-20T08:20:24","slug":"jak-ohybat-hlinikove-vylisky","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/how-to-bend-aluminum-extrusions\/","title":{"rendered":"Jak oh\u00fdbat hlin\u00edkov\u00e9 v\u00fdlisky?"},"content":{"rendered":"

\"Hlin\u00edkov\u00e9
Hlin\u00edkov\u00e9 v\u00fdlisky Ultra-mal\u00fd materi\u00e1l Hlin\u00edkov\u00fd r\u00e1mov\u00fd profil<\/figcaption><\/figure>\n<\/p>\n

\u010casto se setk\u00e1v\u00e1m s d\u00edly, kter\u00e9 pot\u0159ebuj\u00ed zak\u0159iven\u00fd hlin\u00edkov\u00fd r\u00e1m a rovn\u00e9 v\u00fdlisky to nezvl\u00e1dnou - jejich oh\u00fdb\u00e1n\u00ed bez po\u0161kozen\u00ed je skute\u010dnou v\u00fdzvou.<\/p>\n

Ano, hlin\u00edkov\u00e9 v\u00fdlisky lze oh\u00fdbat, pokud pou\u017e\u00edv\u00e1te spr\u00e1vn\u00e9 n\u00e1stroje, dodr\u017eujete materi\u00e1lov\u00e9 limity, kontrolujete tlou\u0161\u0165ku st\u011bny a v p\u0159\u00edpad\u011b pot\u0159eby pou\u017e\u00edv\u00e1te teplo.<\/strong><\/p>\n

Projdeme si, jak to spr\u00e1vn\u011b ud\u011blat - od toho, jak\u00e9 n\u00e1stroje zvolit, p\u0159es to, jak z\u00e1le\u017e\u00ed na tlou\u0161\u0165ce st\u011bny, a\u017e po to, jak se vyhnout prasklin\u00e1m a zda pom\u00e1h\u00e1 teplo.<\/p>\n

Jak\u00e9 n\u00e1stroje \u00fa\u010dinn\u011b oh\u00fdbaj\u00ed v\u00fdlisky?<\/h2>\n

Kdy\u017e jsem poprv\u00e9 zkou\u0161el oh\u00fdbat v\u00fdlisek pomoc\u00ed levn\u00e9ho sv\u011br\u00e1ku a kladiva, v\u00fdsledkem byl nepo\u0159\u00e1dek - jen \u0161patn\u00e9 n\u00e1stroje v\u0161e zt\u011b\u017eovaly.<\/p>\n

Ke spolehliv\u00e9mu oh\u00fdb\u00e1n\u00ed v\u00fdlisk\u016f pot\u0159ebujete specializovan\u00e9 oh\u00fdbac\u00ed stroje nebo za\u0159\u00edzen\u00ed, jako jsou v\u00e1le\u010dkov\u00e9 oh\u00fdba\u010dky, trny, rota\u010dn\u00ed ta\u017en\u00e9 sestavy a kvalitn\u00ed podp\u016frn\u00e9 p\u0159\u00edpravky.<\/strong><\/p>\n

\"Hlin\u00edkov\u00e9
Hlin\u00edkov\u00e9 vytla\u010dov\u00e1n\u00ed Vlastn\u00ed kryt bateri\u00ed pro elektrick\u00e1 vozidla Hlin\u00edkov\u00fd profil<\/figcaption><\/figure>\n<\/p>\n

Zku\u0161enosti z pr\u00e1ce na oh\u00fdb\u00e1n\u00ed vytla\u010dov\u00e1n\u00edm m\u011b nau\u010dily, \u017ee v\u00fdb\u011br n\u00e1stroje skute\u010dn\u011b rozhoduje o \u00fasp\u011bchu. Podle jednoho podrobn\u00e9ho p\u0159ehledu existuje v\u00edce metod - oh\u00fdb\u00e1n\u00ed na v\u00e1lc\u00edch, oh\u00fdb\u00e1n\u00ed s beranem\/tlakem, rota\u010dn\u00ed ta\u017een\u00ed, oh\u00fdb\u00e1n\u00ed pod tlakem, tv\u00e1\u0159en\u00ed pod tlakem a oh\u00fdb\u00e1n\u00ed ve voln\u00e9m tvaru.<\/p>\n

Pro\u010d jsou r\u016fzn\u00e9 n\u00e1stroje d\u016fle\u017eit\u00e9<\/h3>\n
    \n
  • Oh\u00fdb\u00e1n\u00ed v\u00e1le\u010dk\u016f<\/strong>: Vhodn\u00e9 pro dlouh\u00e9 v\u00fdlisky a velk\u00e9 polom\u011bry; v\u00fdlisek je postupn\u011b protahov\u00e1n nebo p\u0159itla\u010dov\u00e1n p\u0159es v\u00e1lce. Je to efektivn\u00ed, ale p\u0159esnost nebo velmi mal\u00e9 polom\u011bry mohou trp\u011bt.<\/li>\n
  • Oh\u00fdb\u00e1n\u00ed beranem nebo tlakem<\/strong>: Matrice nebo beran tla\u010d\u00ed v\u00fdlisek kolem oh\u00fdbac\u00ed formy; je jednodu\u0161\u0161\u00ed, ale pokud nen\u00ed dob\u0159e podep\u0159en, m\u016f\u017ee deformovat tvar.<\/li>\n
  • Rota\u010dn\u00ed ta\u017en\u00e9 oh\u00fdb\u00e1n\u00ed<\/strong>: Sekce se up\u00edn\u00e1 a obt\u00e1\u010d\u00ed kolem odpov\u00eddaj\u00edc\u00ed matrice s p\u0159esnou kontrolou. Vhodn\u00e9 pro u\u017e\u0161\u00ed ohyby a slo\u017eit\u00e9 profily.<\/li>\n
  • Tvarov\u00e1n\u00ed stre\u010d\u016f<\/strong>: V\u00fdlisek je nap\u00edn\u00e1n a lisovac\u00ed forma jej lisuje do oblouku. Tato metoda pom\u00e1h\u00e1 zabr\u00e1nit proh\u00fdb\u00e1n\u00ed a poskytuje lep\u0161\u00ed celistvost povrchu.<\/li>\n<\/ul>\n

    Podpora a nastaven\u00ed<\/h3>\n

    Krom\u011b hlavn\u00edho oh\u00fdbac\u00edho n\u00e1stroje vy\u017eaduje dobr\u00e9 oh\u00fdb\u00e1n\u00ed spr\u00e1vnou podporu: trny uvnit\u0159 dut\u00fdch profil\u016f, p\u0159\u00edpravky pro udr\u017een\u00ed tvaru, podp\u016frn\u00e9 p\u0159\u00edtla\u010dn\u00e9 matrice, aby se zabr\u00e1nilo proh\u00fdb\u00e1n\u00ed. Nap\u0159\u00edklad p\u0159i oh\u00fdb\u00e1n\u00ed dut\u00fdch profil\u016f se slab\u00fdmi st\u011bnami mohou v\u00fdpln\u011b nebo vnit\u0159n\u00ed vlo\u017eky zabr\u00e1nit zborcen\u00ed.<\/p>\n

    Moje tipy na n\u00e1stroje zalo\u017een\u00e9 na skute\u010dn\u00e9 pr\u00e1ci<\/h3>\n
      \n
    • P\u0159edem si z\u0159eteln\u011b ozna\u010dte linii ohybu, abyste v\u011bd\u011bli, kde za\u010d\u00edn\u00e1 oblouk.<\/li>\n
    • Pou\u017eijte polom\u011br matrice, kter\u00fd je vhodn\u00fd pro dan\u00fd profil.<\/li>\n
    • Pou\u017eijte podp\u016frn\u00e9 matrice nebo svorky, abyste zabr\u00e1nili deformaci profilov\u00fdch p\u0159\u00edrub nebo p\u00e1s\u016f.<\/li>\n
    • Pomal\u00e1 \u0159\u00edzen\u00e1 s\u00edla je lep\u0161\u00ed ne\u017e \u201cto\u010dit klikou a doufat\u201d.<\/li>\n
    • Po oh\u00fdb\u00e1n\u00ed zkontrolujte, zda se \u0159ez nedeformuje, nezten\u010duje nebo neproh\u00fdb\u00e1.<\/li>\n<\/ul>\n

      <\/svg> V\u00e1le\u010dkov\u00e9 oh\u00fdb\u00e1n\u00ed je vhodn\u00e9 pro extr\u00e9mn\u011b mal\u00e9 polom\u011bry ohybu hlin\u00edkov\u00fdch v\u00fdlisk\u016f.<\/b>False<\/span><\/p>

      V\u00e1le\u010dkov\u00e9 oh\u00fdb\u00e1n\u00ed je efektivn\u00ed pro dlouh\u00e9 d\u00edly a velk\u00e9 polom\u011bry, ale obvykle ne pro velmi mal\u00e9 polom\u011bry; pro mal\u00e9 ohyby jsou vhodn\u011bj\u0161\u00ed metody jako rota\u010dn\u00ed ta\u017een\u00ed nebo oh\u00fdb\u00e1n\u00ed pod tlakem.<\/p><\/div>
      \n

      <\/svg> Rota\u010dn\u00ed ta\u017en\u00e9 oh\u00fdb\u00e1n\u00ed umo\u017e\u0148uje velmi p\u0159esn\u00e9 ohyby hlin\u00edkov\u00fdch v\u00fdlisk\u016f<\/b>Pravda<\/span><\/p>

      Rota\u010dn\u00ed ta\u017en\u00e9 oh\u00fdb\u00e1n\u00ed obt\u00e1\u010d\u00ed v\u00fdlisek kolem matrice s odpov\u00eddaj\u00edc\u00edm profilem a umo\u017e\u0148uje p\u0159esnou kontrolu \u00fahlu a tvaru.<\/p><\/div><\/p>\n

      Pro\u010d m\u00e1 tlou\u0161\u0165ka st\u011bny vliv na ohyb?<\/h2>\n

      Kdy\u017e jsem poprv\u00e9 ohnul tenkost\u011bnn\u00fd v\u00fdlisek a ten se rozpadl, uv\u011bdomil jsem si, \u017ee tlou\u0161\u0165ka st\u011bny m\u00e1 velk\u00fd vliv na to, jak kov reaguje na nam\u00e1h\u00e1n\u00ed.<\/p>\n

      Tlou\u0161\u0165ka st\u011bny ovliv\u0148uje, jak moc se m\u016f\u017ee profil p\u0159i oh\u00fdb\u00e1n\u00ed rozt\u00e1hnout nebo stla\u010dit, jak snadno se oh\u00fdb\u00e1 a jak\u00fd minim\u00e1ln\u00ed polom\u011br ohybu mus\u00edte pou\u017e\u00edt.<\/strong><\/p>\n

      \"Vysoce
      Vysoce p\u0159esn\u00e9 vytla\u010dov\u00e1n\u00ed hlin\u00edkov\u00fdch profil\u016f CNC obr\u00e1b\u011bc\u00ed d\u00edly p\u0159\u00edslu\u0161enstv\u00ed<\/figcaption><\/figure>\n<\/p>\n

      Tlou\u0161\u0165ka st\u011bny je kritick\u00fdm parametrem p\u0159i oh\u00fdb\u00e1n\u00ed lisovan\u00e9ho hlin\u00edku. Jeden z pr\u016fvodc\u016f konstrukc\u00ed pro v\u00fdrobu zd\u016fraz\u0148uje, \u017ee tlou\u0161\u0165ka st\u011bny, volba slitiny, geometrie profilu a popou\u0161t\u011bn\u00ed se p\u0159i pl\u00e1nov\u00e1n\u00ed ohybu vz\u00e1jemn\u011b ovliv\u0148uj\u00ed. Jin\u00fd zdroj uv\u00e1d\u00ed p\u0159\u00edm\u011bj\u0161\u00ed \u010d\u00edsla: U dut\u00fdch profil\u016f je minim\u00e1ln\u00ed polom\u011br ohybu p\u0159ibli\u017en\u011b 5-7n\u00e1sobek tlou\u0161\u0165ky st\u011bny, u pln\u00fdch profil\u016f p\u0159ibli\u017en\u011b 3-5n\u00e1sobek tlou\u0161\u0165ky.<\/p>\n

      Co se d\u011bje fyzicky<\/h3>\n

      P\u0159i oh\u00fdb\u00e1n\u00ed v\u00fdlisku je vn\u011bj\u0161\u00ed strana k\u0159ivky v tahu a vnit\u0159n\u00ed strana v tlaku. U tenk\u00e9 st\u011bny se m\u016f\u017ee vnit\u0159n\u00ed strana prohnout. U siln\u011bj\u0161\u00ed st\u011bny je v\u00edce materi\u00e1lu, kter\u00fd odol\u00e1v\u00e1 deformaci, ale tak\u00e9 v\u00edce materi\u00e1lu, kter\u00fd se mus\u00ed nat\u00e1hnout nebo stla\u010dit, a to m\u016f\u017ee v\u00e9st k prask\u00e1n\u00ed.<\/p>\n

      Kl\u00ed\u010dov\u00e9 \u00favahy<\/h3>\n
        \n
      • Dut\u00fd vs. pevn\u00fd<\/strong>: Dut\u00e9 profily jsou n\u00e1chyln\u011bj\u0161\u00ed k vybo\u010den\u00ed na vnit\u0159n\u00edm polom\u011bru.<\/li>\n
      • Rovnom\u011brnost tlou\u0161\u0165ky st\u011bny<\/strong>: Nerovnom\u011brn\u00e1 tlou\u0161\u0165ka st\u011bny zp\u016fsobuje koncentraci nap\u011bt\u00ed.<\/li>\n
      • Minim\u00e1ln\u00ed polom\u011br ohybu<\/strong>: Tlou\u0161\u0165ka st\u011bny je limitn\u00ed. Pokud je p\u0159\u00edli\u0161 t\u011bsn\u00e1, hroz\u00ed zten\u010den\u00ed nebo prasknut\u00ed.<\/li>\n<\/ul>\n

        Praktick\u00e1 tabulka pro pl\u00e1nov\u00e1n\u00ed<\/h3>\n\n\n\n\n\n\n\n
        Tlou\u0161\u0165ka st\u011bny<\/th>\nP\u0159ibli\u017en\u00fd minim\u00e1ln\u00ed polom\u011br ohybu<\/th>\nPozn\u00e1mky<\/th>\n<\/tr>\n<\/thead>\n
        Pevn\u00fd pr\u016f\u0159ez, nap\u0159. 3 mm<\/td>\n~3-5\u00d7 tlou\u0161\u0165ka \u2248 9-15 mm<\/td>\nDobr\u00e9 pro jednodu\u0161\u0161\u00ed \u00faseky<\/td>\n<\/tr>\n
        Dut\u00fd profil, nap\u0159. 2mm st\u011bna<\/td>\n~5-7\u00d7 tlou\u0161\u0165ka \u2248 10-14 mm<\/td>\nPot\u0159ebuje vnit\u0159n\u00ed podporu, pokud je t\u011bsn\u00e1<\/td>\n<\/tr>\n
        Velmi tenk\u00e1 st\u011bna, nap\u0159. 1 mm st\u011bna<\/td>\n~5-7\u00d7 tlou\u0161\u0165ka \u2248 5-7 mm<\/td>\nVysok\u00e9 riziko deformace nebo prasklin<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        Moje zku\u0161enost<\/h3>\n

        Kdy\u017e jsem pracoval s v\u00fdliskem se st\u011bnou 1,5 mm a slo\u017eit\u00fdm profilem, pou\u017eil jsem vnit\u0159n\u00ed trn a musel jsem p\u0159ijmout v\u011bt\u0161\u00ed polom\u011br. P\u0159i jin\u00e9 pr\u00e1ci se st\u011bnou 4 mm jsem pou\u017eil u\u017e\u0161\u00ed zak\u0159iven\u00ed, ale p\u0159esto jsem kontroloval, zda nedo\u0161lo k prasknut\u00ed.<\/p>\n

        <\/svg> Ten\u010d\u00ed st\u011bny hlin\u00edkov\u00e9ho v\u00fdlisku v\u017edy umo\u017e\u0148uj\u00ed men\u0161\u00ed polom\u011br ohybu.<\/b>False<\/span><\/p>

        Ten\u010d\u00ed st\u011bny sni\u017euj\u00ed odolnost proti stla\u010den\u00ed a vybo\u010den\u00ed, tak\u017ee \u010dasto vy\u017eaduj\u00ed v\u011bt\u0161\u00ed polom\u011bry nebo vnit\u0159n\u00ed podporu, aby se zabr\u00e1nilo defekt\u016fm.<\/p><\/div>
        \n

        <\/svg> Rovnom\u011brn\u00e1 tlou\u0161\u0165ka st\u011bny v\u00fdlisku pom\u00e1h\u00e1 zlep\u0161it ohybatelnost<\/b>Pravda<\/span><\/p>

        Rovnom\u011brn\u00e1 tlou\u0161\u0165ka st\u011bny sni\u017euje koncentraci nap\u011bt\u00ed a deformaci p\u0159i oh\u00fdb\u00e1n\u00ed, co\u017e umo\u017e\u0148uje lep\u0161\u00ed kontrolu ohybu.<\/p><\/div><\/p>\n

        Jak se vyhnout prask\u00e1n\u00ed p\u0159i oh\u00fdb\u00e1n\u00ed?<\/h2>\n

        Praskliny jsou nejhor\u0161\u00ed, kdy\u017e jste str\u00e1vili \u010das nastavov\u00e1n\u00edm a pak se ohyb nepovedl - vid\u011bl jsem, \u017ee se p\u0159ekvapiv\u00e9 praskliny objevuj\u00ed v bl\u00edzkosti neutr\u00e1ln\u00ed osy nebo na vn\u011bj\u0161\u00edm vl\u00e1kn\u011b, kdy\u017e je temperace \u0161patn\u00e1 nebo podpora nedostate\u010dn\u00e1.<\/p>\n

        P\u0159edejd\u011bte vzniku trhlin v\u00fdb\u011brem oh\u00fdbateln\u00fdch slitin\/temperac\u00ed, spr\u00e1vn\u00fdm podep\u0159en\u00edm profilu, pou\u017eit\u00edm vhodn\u00e9ho polom\u011bru, kontrolou povrchov\u00e9 \u00fapravy a v p\u0159\u00edpad\u011b pot\u0159eby p\u0159edeh\u0159evem nebo \u017e\u00edh\u00e1n\u00edm.<\/strong><\/p>\n

        \"Hlin\u00edkov\u00e9
        Hlin\u00edkov\u00e9 v\u00fdlisky 2024 7001 7003 Hlin\u00edkov\u00fd profil<\/figcaption><\/figure>\n<\/p>\n

        P\u0159i oh\u00fdb\u00e1n\u00ed v\u00fdlisk\u016f pro na\u0161e projekty jsem se sna\u017eil \u0159e\u0161it riziko vzniku trhlin z v\u00edce hledisek: slitina\/temperatura, stav povrchu, podpora, polom\u011br ohybu a o\u0161et\u0159en\u00ed po ohnut\u00ed.<\/p>\n

        Slitina a tvrdost<\/h3>\n

        N\u011bkter\u00e9 hlin\u00edkov\u00e9 slitiny se oh\u00fdbaj\u00ed l\u00e9pe ne\u017e jin\u00e9. S\u00e9rie 6xxx, jako je 6063, jsou l\u00e9pe tvarovateln\u00e9. Pokud je slitina v temperaci T6, je pravd\u011bpodobn\u011bj\u0161\u00ed, \u017ee praskne, pokud se nepou\u017eij\u00ed tepeln\u00e9 nebo jin\u00e9 metody.<\/p>\n

        Podpora a n\u00e1stroje<\/h3>\n

        Vnit\u0159n\u00ed trny pro dut\u00e9 profily a p\u0159\u00edtla\u010dn\u00e9 lisy pom\u00e1haj\u00ed zabr\u00e1nit zborcen\u00ed. Nepodep\u0159en\u00e9 profily \u010dasto praskaj\u00ed nebo se deformuj\u00ed.<\/p>\n

        Povrchov\u00e1 \u00faprava a zu\u0161lech\u0165ov\u00e1n\u00ed<\/h3>\n

        Povrchov\u00e9 \u00fapravy, jako je eloxov\u00e1n\u00ed, mohou p\u0159i nam\u00e1h\u00e1n\u00ed popraskat. Je lep\u0161\u00ed p\u0159ed eloxov\u00e1n\u00edm oh\u00fdbat, aby se zabr\u00e1nilo vzniku mikrotrhlinek v povlaku.<\/p>\n

        Polom\u011br ohybu a \u0159\u00edzen\u00ed procesu<\/h3>\n

        P\u0159\u00edli\u0161 mal\u00fd polom\u011br ohybu zp\u016fsobuje p\u0159et\u00ed\u017een\u00ed. V\u017edy dodr\u017eujte pokyny pro minim\u00e1ln\u00ed ohyb. Pom\u00e1h\u00e1 pomal\u00e9 oh\u00fdb\u00e1n\u00ed a kompenzace zp\u011btn\u00e9 pru\u017einy.<\/p>\n

        Odleh\u010den\u00ed po ohybu<\/h3>\n

        N\u011bkdy \u017e\u00edh\u00e1n\u00ed po oh\u00fdb\u00e1n\u00ed pom\u00e1h\u00e1 zm\u00edrnit nap\u011bt\u00ed. V\u00fdsledky m\u016f\u017ee zlep\u0161it i oh\u00fdb\u00e1n\u00ed p\u0159ed \u00fapln\u00fdm popu\u0161t\u011bn\u00edm.<\/p>\n

        M\u016fj kontroln\u00ed seznam, jak se vyhnout prasklin\u00e1m<\/h3>\n
          \n
        • Potvr\u010fte slitinu a temperaci.<\/li>\n
        • Zajist\u011bte si intern\u00ed podporu.<\/li>\n
        • Zvolte spr\u00e1vn\u00fd polom\u011br ohybu.<\/li>\n
        • Pomalu se oh\u00fdbejte.<\/li>\n
        • Po oh\u00fdb\u00e1n\u00ed prove\u010fte kontrolu.<\/li>\n
        • Zva\u017ete o\u0161et\u0159en\u00ed po ohybu.<\/li>\n<\/ul>\n

          <\/svg> Eloxov\u00e1n\u00ed po oh\u00fdb\u00e1n\u00ed je v\u017edy lep\u0161\u00ed, aby se zabr\u00e1nilo vzniku povrchov\u00fdch mikrotrhlin.<\/b>Pravda<\/span><\/p>

          Proto\u017ee oh\u00fdb\u00e1n\u00ed po eloxov\u00e1n\u00ed m\u016f\u017ee zp\u016fsobit mikrotrhliny nebo praskliny v k\u0159ehk\u00e9 eloxovan\u00e9 vrstv\u011b, je obecn\u011b lep\u0161\u00ed nejprve oh\u00fdbat a teprve potom eloxovat.<\/p><\/div>
          \n

          <\/svg> P\u0159i oh\u00fdb\u00e1n\u00ed hlin\u00edkov\u00fdch v\u00fdlisk\u016f m\u016f\u017eete ignorovat zp\u011btnou pru\u017einu, proto\u017ee se nevrac\u00ed do p\u016fvodn\u00edho tvaru.<\/b>False<\/span><\/p>

          Hlin\u00edkov\u00e9 v\u00fdlisky vykazuj\u00ed po oh\u00fdb\u00e1n\u00ed zp\u011btnou pru\u017einu, tak\u017ee s n\u00ed mus\u00edte po\u010d\u00edtat p\u0159i nastavov\u00e1n\u00ed oh\u00fdbac\u00edch n\u00e1stroj\u016f a \u00fahlu.<\/p><\/div><\/p>\n

          M\u016f\u017ee teplo pomoci p\u0159i oh\u00fdb\u00e1n\u00ed hlin\u00edkov\u00fdch v\u00fdlisk\u016f?<\/h2>\n

          V jedn\u00e9 zak\u00e1zce byly pou\u017eity v\u00fdlisky z tvrzen\u00e9 slitiny, kter\u00e9 p\u0159i oh\u00fdb\u00e1n\u00ed za studena praskaly - pak jsem zavedl \u0159\u00edzen\u00e9 zah\u0159\u00edv\u00e1n\u00ed a oh\u00fdb\u00e1n\u00ed se v\u00fdrazn\u011b zlep\u0161ilo.<\/p>\n

          Ano - pou\u017eit\u00ed tepla (\u017e\u00edh\u00e1n\u00ed nebo lok\u00e1ln\u00ed oh\u0159ev) m\u016f\u017ee pomoci zm\u011bk\u010dit slitinu a umo\u017enit t\u011bsn\u011bj\u0161\u00ed ohyby, sn\u00ed\u017eit riziko vzniku trhlin a zlep\u0161it ohybatelnost v\u00fdlisk\u016f s tvrd\u0161\u00ed temperac\u00ed.<\/strong><\/p>\n

          \"Hlin\u00edkov\u00e9
          Hlin\u00edkov\u00e9 vytla\u010dovac\u00ed konzoly<\/figcaption><\/figure>\n<\/p>\n

          Pou\u017eit\u00ed tepla je zn\u00e1mou technikou, kter\u00e1 usnad\u0148uje nebo umo\u017e\u0148uje oh\u00fdb\u00e1n\u00ed hlin\u00edkov\u00fdch v\u00fdlisk\u016f, pokud je materi\u00e1l p\u0159\u00edli\u0161 k\u0159ehk\u00fd nebo je polom\u011br ohybu p\u0159\u00edli\u0161 mal\u00fd.<\/p>\n

          Kdy\u017e pom\u00e1h\u00e1 teplo<\/h3>\n
            \n
          • Zah\u0159\u00edv\u00e1n\u00ed sni\u017euje mez kluzu a zvy\u0161uje ta\u017enost.<\/li>\n
          • Lokalizovan\u00e9 teplo v oblasti ohybu sni\u017euje pot\u0159ebnou s\u00edlu.<\/li>\n
          • Oh\u00fdb\u00e1n\u00ed p\u0159ed kone\u010dn\u00fdm popu\u0161t\u011bn\u00edm m\u016f\u017ee zabr\u00e1nit prask\u00e1n\u00ed.<\/li>\n<\/ul>\n

            Jak bezpe\u010dn\u011b pou\u017e\u00edvat teplo<\/h3>\n
              \n
            • Pou\u017eijte ho\u0159\u00e1k nebo induk\u010dn\u00ed oh\u0159\u00edva\u010d.<\/li>\n
            • Rovnom\u011brn\u011b zah\u0159\u00edvejte.<\/li>\n
            • Nechte ji postupn\u011b vychladnout.<\/li>\n
            • Dokon\u010dete po oh\u00fdb\u00e1n\u00ed, ne p\u0159ed n\u00edm.<\/li>\n<\/ul>\n

              \u00davahy a omezen\u00ed<\/h3>\n
                \n
              • Ne v\u0161echny slitiny reaguj\u00ed na teplo.<\/li>\n
              • Teplo p\u0159in\u00e1\u0161\u00ed rizika, jako je zkreslen\u00ed.<\/li>\n
              • St\u00e1le pot\u0159ebujete spr\u00e1vn\u00fd polom\u011br a podporu.<\/li>\n<\/ul>\n

                Moje zku\u0161enost<\/h3>\n

                V projektu, kde jsme pou\u017eili v\u00fdlisky 6061-T6, jsme je p\u0159edeh\u0159\u00e1li na 180 \u00b0C a ohnuli \u010dist\u011b. Bez zah\u0159\u00e1t\u00ed doch\u00e1zelo k prask\u00e1n\u00ed. S oh\u0159evem se poda\u0159ily t\u011bsn\u011bj\u0161\u00ed ohyby. Teplo zachr\u00e1nilo pr\u00e1ci.<\/p>\n

                <\/svg> Pou\u017eit\u00ed lok\u00e1ln\u00edho tepla v\u017edy eliminuje pot\u0159ebu v\u011bt\u0161\u00edho polom\u011bru ohybu.<\/b>False<\/span><\/p>

                Teplo zlep\u0161uje ta\u017enost a napom\u00e1h\u00e1 oh\u00fdb\u00e1n\u00ed, ale neodstra\u0148uje fyzik\u00e1ln\u00ed omezen\u00ed dan\u00e1 tlou\u0161\u0165kou st\u011bny, geometri\u00ed profilu a podporou; st\u00e1le pot\u0159ebujete vhodn\u00fd polom\u011br ohybu.<\/p><\/div>
                \n

                <\/svg> Oh\u00fdb\u00e1n\u00ed v\u00fdlisku v temperaci T6 je n\u00e1ro\u010dn\u011bj\u0161\u00ed ne\u017e oh\u00fdb\u00e1n\u00ed v temperaci O nebo T4.<\/b>Pravda<\/span><\/p>

                Temperace T6 je tvrd\u0161\u00ed a m\u00e9n\u011b tv\u00e1rn\u00e1, tak\u017ee oh\u00fdb\u00e1n\u00ed bez prask\u00e1n\u00ed je obt\u00ed\u017en\u011bj\u0161\u00ed; m\u011bk\u010d\u00ed temperace jako O nebo T4 umo\u017e\u0148uj\u00ed snadn\u011bj\u0161\u00ed tv\u00e1\u0159en\u00ed.<\/p><\/div><\/p>\n

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

                P\u0159i oh\u00fdb\u00e1n\u00ed hlin\u00edkov\u00fdch v\u00fdlisk\u016f jsem zjistil, \u017ee pou\u017e\u00edv\u00e1n\u00ed spr\u00e1vn\u00fdch n\u00e1stroj\u016f, dodr\u017eov\u00e1n\u00ed limit\u016f tlou\u0161\u0165ky st\u011bn, p\u0159edch\u00e1zen\u00ed vzniku trhlin d\u00edky spr\u00e1vn\u00e9mu nastaven\u00ed a pou\u017eit\u00ed tepla v p\u0159\u00edpad\u011b pot\u0159eby jsou z\u00e1sadn\u00ed kroky. Pokud je provedete spr\u00e1vn\u011b, budou oh\u00fdb\u00e1n\u00ed \u010dist\u00e1, opakovateln\u00e1 a spolehliv\u00e1.<\/p>","protected":false},"excerpt":{"rendered":"

                Aluminum Extrusion Ultra-small Material Aluminum Frame Profile I often face parts that need a curved aluminum frame and the straight extrusions won\u2019t cut it\u2014bending them without damage is a real challenge. Yes, you can bend aluminum extrusions if you use the right tools, respect material limits, control wall thickness and use heat when needed. Let\u2019s […]<\/p>\n","protected":false},"author":6,"featured_media":6235,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-26224","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\/26224","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=26224"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/26224\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/6235"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=26224"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=26224"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=26224"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}