发明名称 |
METHOD OF FORMING MEMBER, VALVE GUIDE AND METHOD OF FORMING THE VALVE GUIDE, AND METHOD OF FORMING TUBULAR MEMBER |
摘要 |
<p>[PROBLEMS] To provide a method with which a member having an undercut in the inner periphery can be readily formed. [MEANS FOR SOLVING PROBLEMS] To form a raw material (1) having a recess (2) and an undercut (3) by using a swaging device, the raw material (1) is gripped by a clamper (11), and a mandrel (12) is inserted in the recess section (2) of the raw material (1). The mandrel (12) used has an outer diameter equal to the inner diameter of a blind hole of an aimed product (fuel injection nozzle). Then, the raw material (1) is pushed in by the mandrel (12) to a position at which the raw material is in contact with a stopper (13), and the outer surface of the raw material (1) is struck and swaged by a swaging die (8). The swaging reduces the inner diameter of the recess (2) to the magnitude of the outer diameter of the mandrel (12), with the undercut (3) left.</p> |
申请公布号 |
WO2005061151(A1) |
申请公布日期 |
2005.07.07 |
申请号 |
WO2004JP15623 |
申请日期 |
2004.10.21 |
申请人 |
HONDA MOTOR CO., LTD.;OHNUMA, TAKAYUKI;KOBAYASHI, TAKASHI;ANDO, TSUTOMU;HIRUMA, HIDETAKA;TAKADA, RYOTARO |
发明人 |
OHNUMA, TAKAYUKI;KOBAYASHI, TAKASHI;ANDO, TSUTOMU;HIRUMA, HIDETAKA;TAKADA, RYOTARO |
分类号 |
B21C23/14;B21J7/14;B21J7/16;B21K1/20;B21K21/08;F02M61/16;(IPC1-7):B21J5/06;F01L3/08;B21J9/06 |
主分类号 |
B21C23/14 |
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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