发明名称 |
Method of thread rolling a screw shaft |
摘要 |
In a method of thread rolling a screw shaft, an inclining portion 1c is provided between a machining portion 1a of a screw shaft 1 and a non-machining portion 1b thereof as well as a taper portion 2b is formed to screw groove forming dies 2, by which a machining load concentrating at the thread rolling portion on the end of the dies adjacent a chuck can be reduced. With this method, the screw shaft can be thread rolled to have straightness of high quality.
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申请公布号 |
US5743123(A) |
申请公布日期 |
1998.04.28 |
申请号 |
US19970792222 |
申请日期 |
1997.01.31 |
申请人 |
MITSUBA CORPORATION |
发明人 |
YAMAMOTO, MASATOSHI;HOSONO, HIROMASA |
分类号 |
B21H3/02;B21H3/06;H02K15/14;(IPC1-7):B21H3/06 |
主分类号 |
B21H3/02 |
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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