Method for manufacturing press formed product

    公开(公告)号:US11511330B2

    公开(公告)日:2022-11-29

    申请号:US16957122

    申请日:2018-12-17

    IPC分类号: B21D22/26 B21D19/00 B21D37/16

    摘要: A press formed product is disclosed. A method for manufacturing the press formed product is a method for manufacturing the press formed product including applying press processing including stretch flange forming to a single metal sheet of one sheet material after performing shearing processing of the metal sheet to manufacture the press formed product. When a region where a stretch flange crack is estimated to be likely to occur when the single metal sheet is press formed by the press processing is set as a stretch flange crack region, the press processing is applied after heating and cooling the end surface of the metal sheet positioned in the stretch flange crack region and at least the end surface in the end surface and the vicinity thereof in the single metal sheet after the shearing processing.