Invention Grant
- Patent Title: Process for manufacturing outer ring member for constant-velocity joint
- Patent Title (中): 制造恒速接头外圈件的工艺
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Application No.: US12224330Application Date: 2007-01-18
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Publication No.: US08127585B2Publication Date: 2012-03-06
- Inventor: Satoru Ishizuna , Hiroaki Suzuki , Junji Yoshida , Hiroyuki Kawamura , Isao Nakata , Michie Hirane , Sadaichi Takamatsu , Jun Noguthi
- Applicant: Satoru Ishizuna , Hiroaki Suzuki , Junji Yoshida , Hiroyuki Kawamura , Isao Nakata , Michie Hirane , Sadaichi Takamatsu , Jun Noguthi
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd.
- Current Assignee: Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Squire Sanders (US) LLP
- Priority: JP2006-050729 20060227; JP2006-346688 20061222
- International Application: PCT/JP2007/050700 WO 20070118
- International Announcement: WO2007/097141 WO 20070830
- Main IPC: B21C23/00
- IPC: B21C23/00

Abstract:
First shaped item with shaft part is produced by forward extrusion forming of work, and further, upset forming thereof is carried out to thereby obtain second shaped item with large-diameter part. Subsequently, backward extrusion forming of the second shaped item is carried out to thereby obtain third shaped item having not only cup part provided with ball rolling grooves but also circular diameter expansion portion provided at the mouth area of the inside wall of the cup part along the circumferential direction in such a fashion that the diameter is gradually expanded from the bottom side toward the opening side. Outer ring member for constant-velocity joint is obtained by further subjecting the third shaped item to low-temperature annealing treatment, shot blast treatment and lubricating chemical coating treatment, and thereafter to ironing forming.
Public/Granted literature
- US20090013746A1 Process for Manufacturing Outer Ring Member for Constant-Velocity Joint Public/Granted day:2009-01-15
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