发明申请
US20120137523A1 PROCESS FOR MANUFACTURING ROLLING CONTACT MEMBER, PROCESS FOR MANUFACTURING ROLLING BEARING, RACEWAY MEMBER OF ROLLING BEARING AND ROLLING BEARING
审中-公开
制造滚动接触构件的方法，制造滚动轴承的过程，滚动轴承和滚动轴承的研讨会成员
- 专利标题： PROCESS FOR MANUFACTURING ROLLING CONTACT MEMBER, PROCESS FOR MANUFACTURING ROLLING BEARING, RACEWAY MEMBER OF ROLLING BEARING AND ROLLING BEARING
- 专利标题（中）： 制造滚动接触构件的方法，制造滚动轴承的过程，滚动轴承和滚动轴承的研讨会成员
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申请号： US13310423申请日： 2011-12-02
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公开(公告)号： US20120137523A1公开(公告)日： 2012-06-07
- 发明人: Kikuo Maeda , Yuji Okamoto
- 申请人： Kikuo Maeda , Yuji Okamoto
- 申请人地址： JP Osaka
- 专利权人： NTN Corporation
- 当前专利权人： NTN Corporation
- 当前专利权人地址： JP Osaka
- 优先权： JP2006-153734(P) 20060601
- 主分类号： B21K1/02
- IPC分类号： B21K1/02 ; F16C43/06 ; B21K1/04
摘要：
A process for manufacturing a rolling contact member comprises preparing a steel member consisting of a steel containing 0.7 mass % or more of carbon; performing hot forging of the steel member prepared in the steel member preparation step to thereby obtain a blank ring as the first forged member; performing turning of the blank ring obtained in the hot forging step to thereby remove part of the blank ring; and performing cold forging of the blank ring wrought in the first turning step to thereby obtain a stepped ring. In the steps subsequent to the cold forging step, on the stepped ring, the area wrought in the first turning step is not subjected to cutting.
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