发明名称 METHOD FOR MANUFACTURING PRESS-FORMED ARTICLE
摘要 A useful method for manufacturing a press-formed article by press-forming a thin steel sheet using a punch and die. In said method, press-forming is started after the thin steel sheet is heated to a temperature greater than or equal to the Ac3 transformation point thereof, and the thin steel sheet is formed such that the temperature differential therein is no greater than 200°C when said thin steel sheet has reached one third of a forming height. This results in a press-formed article with formability good enough so as to allow deep drawing without making the mold complicated.
申请公布号 WO2012043832(A1) 申请公布日期 2012.04.05
申请号 WO2011JP72666 申请日期 2011.09.30
申请人 KABUSHIKI KAISHA KOBE SEIKO SHO;NAITOU, JUNYA;OKITA, KEISUKE;IKEDA, SHUSHI 发明人 NAITOU, JUNYA;OKITA, KEISUKE;IKEDA, SHUSHI
分类号 B21D22/20;B21D22/22 主分类号 B21D22/20
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