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公开(公告)号:US20130276276A1
公开(公告)日:2013-10-24
申请号:US13918098
申请日:2013-06-14
申请人: Kazuya Ogawa , Hiroshi Ogawa
发明人: Hiroshi OGAWA , Kazuya OGAWA , Michihiro YOKOYAMA
CPC分类号: E05D5/062 , B21D53/40 , B21D53/88 , B21J5/02 , B21J5/10 , B21K1/74 , B21K13/02 , B21K23/00 , E05D9/00 , E05D11/00 , E05Y2800/465 , Y10T29/24
摘要: A method of manufacturing an automobile door hinge includes hot forging a round steel bar to form a forged workpiece including a mounting portion, an arm portion, and a column portion, and forming a shaft hole by punching the column portion by using a special die and a punch. The die has a gap formed therein so that, during punching, a slug is not generated and the column portion expands outward when the punch is pressed from a punching start point to a predetermined dimension, and a slug is generated and discharged when the punch is pressed from the predetermined dimension to a punching end point.
摘要翻译: 一种制造汽车门铰链的方法包括热锻圆钢棒以形成包括安装部分,臂部分和柱部分的锻造工件,并且通过使用特殊模具冲压柱部分而形成轴孔, 一拳 模具具有形成在其中的间隙,使得在冲压期间,当冲头从冲压开始点按压到预定尺寸时,不会产生塞子,并且柱部分向外膨胀,并且当冲头为冲头时产生并排出塞子 从预定尺寸按压到冲孔终点。