发明名称 DIE FOR PRESS FORMING
摘要 PURPOSE:To eliminate defect of waving that occurs around a formed part and enlarge the degree of freedom of form designing by providing a heating device in a die corresponding to locally formed position and enabling to heat locally the formed part. CONSTITUTION:A heating device 5 is provided in a die 1 corresponding to locally formed part. The heating device 5 is formed electrically or by passing heating fluid in the die 1. In the cse of forming work which is flat in most part and locally including bulging out, drawing, bending or combination of the above, above-mentioned formed part is heated locally. By the dies 1, 2, defect of waving that occurs around the formed part is removed and the degree of freedom of form designing is enlarged.
申请公布号 JPS59229242(A) 申请公布日期 1984.12.22
申请号 JP19830104800 申请日期 1983.06.11
申请人 SUMITOMO KINZOKU KOGYO KK 发明人 TAKATANI MASARU;HAYASHI YUTAKA;TOKUDA TOMOKICHI
分类号 B21D24/00;B21D37/16;(IPC1-7):B21D37/16 主分类号 B21D24/00
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