发明名称 |
Ball for constant velocity joint and method for producing the same |
摘要 |
Disclosed is a ball for a constant velocity joint, and a method for producing the same. The ball for a constant velocity joint is produced via a quenching step for heating a spherical body consisting of a material corresponding to a high carbon chromium bearing steel regulated by Japanese Industrial Standards (JIS) to 840-900° C. and then cooling the spherical body under such a condition as 10-25 vol. % of austenite remains up to a first part where the depth from the surface is 0.1 mm, a step for tempering the spherical body at 150° C. or more, and a step for shot peening the spherical body and imparting a compression residual stress of −1000 MPa or more to a region reaching second part where the depth from the surface is 0.2 mm. |
申请公布号 |
US8317943(B2) |
申请公布日期 |
2012.11.27 |
申请号 |
US20090996665 |
申请日期 |
2009.05.22 |
申请人 |
MURAKAMI TAKAFUMI;SHIBATA NAOTO;OSAKO SHUNTA;HONDA MOTOR CO., LTD. |
发明人 |
MURAKAMI TAKAFUMI;SHIBATA NAOTO;OSAKO SHUNTA |
分类号 |
C22C38/36;C21D9/36 |
主分类号 |
C22C38/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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