发明申请
- 专利标题: Method of manufacturing outer ring member for constant velocity joint
- 专利标题(中): 制造恒速接头外圈件的方法
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申请号: US10580210申请日: 2004-11-25
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公开(公告)号: US20070101795A1公开(公告)日: 2007-05-10
- 发明人: Yoshihisa Doi , Kaoru Yamanoi
- 申请人: Yoshihisa Doi , Kaoru Yamanoi
- 专利权人: HONDA MOTOR CO., LTD.
- 当前专利权人: HONDA MOTOR CO., LTD.
- 优先权: JP2003-397685 20031127; JP2003-397545 20031127
- 国际申请: PCT/JP04/17503 WO 20041125
- 主分类号: B21D22/00
- IPC分类号: B21D22/00 ; B21K1/26
摘要:
A method of manufacturing an outer ring member for a constant velocity joint, comprising the steps of forming a secondary molding by applying a preliminary upsetting to a work after applying a forward extrusion-molding to the work, forming intermediate pre-molded bodies having annular sloped surfaces formed thereon to have a difference in flow resistance between large diameter parts and small diameter parts by applying the upsetting to the upper part of the secondary molding, forming a quaternary molding having a cup part with track grooves by applying a backward extrusion-molding to the intermediate pre-molded bodies, and applying an ironing to the cup part of the quaternary molding to finish the quaternary molding to product dimensions.
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