发明名称 |
Gear forming method |
摘要 |
A method of forming a gear through cold plastic working comprises preparing a disc-like blank, and pressing conically a central portion of the blank with a uniform pressure from upper and lower sides to cause plastic deformation in the blank thereby to form a gear along a gear-shaped die arranged around the periphery of the blank. The blank material is restrained to flow radially at peripheral end faces of the blank during the forming of the gear.
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申请公布号 |
US5746085(A) |
申请公布日期 |
1998.05.05 |
申请号 |
US19960668780 |
申请日期 |
1996.06.24 |
申请人 |
HITACHI, LTD. |
发明人 |
HARADA, KOJI;KANAMARU, HISANOBU |
分类号 |
B21J7/34;B21K1/30;(IPC1-7):B21D22/00 |
主分类号 |
B21J7/34 |
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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