[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.digitalweb.cz\/zpracovani-kovu\/#Article","mainEntityOfPage":"https:\/\/www.digitalweb.cz\/zpracovani-kovu\/","headline":"Zpracov\u00e1n\u00ed kov\u016f","name":"Zpracov\u00e1n\u00ed kov\u016f","description":"Hlavn\u00edmi metodami kovod\u011blnictv\u00ed, neboli zpracov\u00e1n\u00ed kov\u016f, jsou odl\u00e9v\u00e1n\u00ed, tv\u00e1\u0159en\u00ed, sva\u0159ov\u00e1n\u00ed a obr\u00e1b\u011bn\u00ed. Odl\u00e9v\u00e1n\u00ed Odl\u00e9v\u00e1n\u00ed, \u010di tak\u00e9 lit\u00ed, je proces, p\u0159i kter\u00e9m se kov, roztaven\u00fd do tekut\u00e9ho, kapaln\u00e9ho stavu, vlije do formy po\u017eadovan\u00e9ho tvaru. Tento proces se dnes ji\u017e vyu\u017e\u00edv\u00e1 pouze pro v\u00fdrobky slo\u017eit\u00fdch tvar\u016f. V\u00fdrobek toti\u017e nedosahuje takov\u00e9 kvality jako ostatn\u00ed jin\u00fdm zp\u016fsobem zpracovan\u00e9. Prvn\u00edm […]","datePublished":"2023-04-28","dateModified":"2023-04-28","author":{"@type":"Person","@id":"https:\/\/www.digitalweb.cz\/author\/#Person","name":"digitalweb.cz\n","url":"https:\/\/www.digitalweb.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/2dfb47fe8ef5e1795dc8fdf9fc01f7f6e0de0c5b588d6a35abd2f00b6a65d2be?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/2dfb47fe8ef5e1795dc8fdf9fc01f7f6e0de0c5b588d6a35abd2f00b6a65d2be?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"digitalweb.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"url":"https:\/\/www.digitalweb.cz\/zpracovani-kovu\/","about":["Technika"],"wordCount":436,"articleBody":"Hlavn\u00edmi metodami kovod\u011blnictv\u00ed, neboli zpracov\u00e1n\u00ed kov\u016f, jsou odl\u00e9v\u00e1n\u00ed, tv\u00e1\u0159en\u00ed, sva\u0159ov\u00e1n\u00ed a obr\u00e1b\u011bn\u00ed.Odl\u00e9v\u00e1n\u00edOdl\u00e9v\u00e1n\u00ed, \u010di tak\u00e9 lit\u00ed, je proces, p\u0159i kter\u00e9m se kov, roztaven\u00fd do tekut\u00e9ho, kapaln\u00e9ho stavu, vlije do formy po\u017eadovan\u00e9ho tvaru. Tento proces se dnes ji\u017e vyu\u017e\u00edv\u00e1 pouze pro v\u00fdrobky slo\u017eit\u00fdch tvar\u016f. V\u00fdrobek toti\u017e nedosahuje takov\u00e9 kvality jako ostatn\u00ed jin\u00fdm zp\u016fsobem zpracovan\u00e9. Prvn\u00edm takto odlit\u00fdm kovov\u00fdm v\u00fdrobkem je zhruba 6000 let star\u00e1 m\u011bd\u011bn\u00e1 \u017e\u00e1ba, je\u017e byla vyhotovena v\u00a0Mezopot\u00e1mii.Tv\u00e1\u0159en\u00edTv\u00e1\u0159en\u00ed je technologick\u00fd proces, p\u0159i kter\u00e9m nedoch\u00e1z\u00ed k\u00a0po\u0161kozen\u00ed dan\u00e9ho kovu. P\u0159i tomto druhu zpracov\u00e1n\u00ed je nutno p\u0159ekro\u010dit takzvanou \u201emez pru\u017enosti\u201c a p\u0159itom neporu\u0161it \u201emez pevnosti\u201c. Pro tv\u00e1\u0159en\u00ed je tedy nutn\u00e9 vybrat takov\u00fd kov, aby jeho mez pru\u017enosti a mez pevnosti byly od sebe navz\u00e1jem dostate\u010dn\u011b vzd\u00e1leny. D\u00e1 se tak\u00e9 rozd\u011blit podle t\u0159\u00ed krit\u00e9ri\u00ed. Podle druhu p\u016fsob\u00edc\u00ed s\u00edly, podle teploty p\u0159i tv\u00e1\u0159en\u00ed a tak\u00e9 na plo\u0161n\u00e9 \u010di objemov\u00e9 tv\u00e1\u0159en\u00ed.Sva\u0159ov\u00e1n\u00edSv\u00e1\u0159en\u00ed jest p\u0159ipevn\u011bn\u00ed dvou (\u010di v\u00edce) sou\u010d\u00e1st\u00ed k\u00a0sob\u011b navz\u00e1jem pomoc\u00ed vysok\u00fdch teplot, nebo p\u0159\u00edpadn\u011b tlaku a roztaven\u00ed \u010d\u00e1sti kovu a vytvo\u0159en\u00ed trval\u00e9ho spoje. Nev\u00fdhodou tohoto zp\u016fsobu zpracov\u00e1n\u00ed je zm\u011bna vlastnost\u00ed materi\u00e1lu v\u00a0bl\u00edzkosti sva\u0159ovan\u00e9ho spoje. \u010casto tedy doch\u00e1z\u00ed k\u00a0poru\u0161en\u00ed a ulomen\u00ed p\u0159iva\u0159en\u00e9ho materi\u00e1lu.M\u016f\u017eeme ho rozd\u011blit na dv\u011b hlavn\u00ed skupiny a to sva\u0159ov\u00e1n\u00ed tlakov\u00e9 a sva\u0159ov\u00e1n\u00ed tavn\u00e9. Sva\u0159ov\u00e1n\u00ed bylo a\u017e do devaten\u00e1ct\u00e9ho stolet\u00ed jedinou technikou spojen\u00ed kov\u016f. Jeho po\u010d\u00e1tky m\u016f\u017eeme datovat stejn\u011b jako po\u010d\u00e1tky zpracov\u00e1v\u00e1n\u00ed kov\u016f do roku zhruba 4000 p\u0159ed na\u0161\u00edm letopo\u010dtem.Obr\u00e1b\u011bn\u00edObr\u00e1b\u011bn\u00ed je c\u00edlen\u00e9 odeb\u00edr\u00e1n\u00ed materi\u00e1lu v\u00a0podob\u011b t\u0159\u00edsky za c\u00edlem dos\u00e1hnout u obrobku po\u017eadovan\u00e9ho tvaru. \u00a0Z\u00a0t\u00e9to definice vypl\u00edv\u00e1, \u017ee nev\u00fdhodou jest zb\u00fdvaj\u00edc\u00ed mno\u017estv\u00ed materi\u00e1lu, kter\u00e9 se v\u00a0podob\u011b kovov\u00fdch t\u0159\u00edsek, \u010di tak\u00e9 n\u011bkdy pilin, odebere. D\u011bl\u00edme jej do t\u0159\u00ed hlavn\u00edch skupin na tradi\u010dn\u00ed \u2013 ru\u010dn\u00ed obr\u00e1b\u011bn\u00ed, na t\u0159\u00edskov\u00e9 \u2013 obr\u00e1b\u011bn\u00ed pomoc\u00ed stroj\u016f za pou\u017eit\u00ed b\u0159it\u016f a na jin\u00e9, jako je laserov\u00e9 \u0159ez\u00e1n\u00ed, \u010di chemick\u00e9 obr\u00e1b\u011bn\u00ed.                                                                                                                                                                                                                                                                                                                                                                                        3.4\/5 - (5 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Zpracov\u00e1n\u00ed kov\u016f","item":"https:\/\/www.digitalweb.cz\/zpracovani-kovu\/#breadcrumbitem"}]}]