发明名称 |
CRANKSHAFT PRODUCTION METHOD AND PRODUCTION APPARATUS |
摘要 |
A crankshaft production method includes: pressurizing both end portions of a shaft blank with a pressurization surface of a die, the pressurization surface being inclined in a specific direction so as to come close to the other end side of the shaft blank, and applying an axial compressive load to the shaft blank, while restricting a radial deformation in a predetermined zone of the shaft blank in a direction other than the specific direction, thereby swaging the shaft blank and causing the predetermined zone to buckle in the specific direction.
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申请公布号 |
US2010180658(A1) |
申请公布日期 |
2010.07.22 |
申请号 |
US20100689412 |
申请日期 |
2010.01.19 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
MAEDA OSAMU;MATSUNAGA KEIICHI |
分类号 |
B21K1/08;B21J5/06;B21J9/00 |
主分类号 |
B21K1/08 |
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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