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    • 53. 发明公开
    • Method of producing metal closed-section member
    • Verfahren zur Herstellung eines Metallelements mit geschlossenem Abschnitt
    • EP2163324A1
    • 2010-03-17
    • EP09167697.3
    • 2009-08-12
    • Mazda Motor Corporation
    • Saito, NaokoIshida, KyosouHamamoto, Tetsuo
    • B21D35/00B21D47/01B21D53/88
    • B21D5/015B21D47/01B21D53/88Y10T29/49622
    • The present invention provides a method capable of accurately producing a metal closed-section member in a relatively simple manner. The method of producing a metal closed-section member formed in a cross-sectionally closed shape, from a metal plate workpiece, comprises a first press-forming step of using a first forming die assembly to press-form the plate workpiece into a convex shape, and a second press-forming step of providing a second forming die assembly, and, after the first press-forming step, under a condition that the press-formed plate workpiece is positioned between a receiving die and a core die of the second forming die assembly, causing relative movement of the core die with respect to the receiving die to press-form the press-formed plate workpiece into a given shape so that two sidewalls of a convex-shaped portion of the press-formed plate workpiece formed on respective ones of both sides of a top wall of the convex-shaped portion of the press-formed plate workpiece during the first press-forming step are displaced toward an inward side of the press-formed plate workpiece and cross-sectionally closed together.
    • 本发明提供一种能够以相对简单的方式精确地制造金属封闭部件的方法。 从金属板工件制造截面闭合形状的金属封闭部件的方法包括:第一压制成形步骤,使用第一成形模组件将板工件压成凸形 以及第二压制成形步骤,提供第二成形模组件,并且在第一压制成型步骤之后,在压制成形板工件位于接收管芯和第二成形模具的芯模之间的条件下 模芯组件,使芯模相对于接收模具相对运动,以将压制成形的板工件压制成给定的形状,使得压制成形板工件的凸形部分的两个侧壁形成在相应的 在第一压制成形步骤期间,压制成形板工件的凸形部分的顶壁的两侧的位置朝向压制成形板工件的内侧移动,横截面闭合 在一起。