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در شکلدهی فلزات، کار گرم، تغییر شکل در آن درجه حرارت و نرخ کرنش است که تبلور مجدد ماده با ایجاد تغییر شکل به طور همزمان صورت می گیرد. چنانچه عمل شکل دهی در دمای محیط صورت بگیرد به آن کار سرد می گویند و اگر در محدوده دمای محیط و در دمای تبلور مجدد صورت بگیرد به آن کارگرم می گویند. برای مطالعه بیشتر در مورد منحنی تنش و کرنش در انواع مواد می توانید رو...
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