发明名称 |
Method and apparatus for manufacturing a cold-forged shaft |
摘要 |
A shaft is cold-forged to have a shaped portion at one end of the shaft and a flange portion at a middle of the shaft. A taper portion is provided at a root of the flange portion on the opposite side thereof to the shaped portion. The shaped portion is formed by forward extrusion of a bar material, and the flange portion is formed by upsetting. The taper portion is formed by extruding the root of the flange portion to provide a gently inclined continuous connection between the flange portion and an adjacent portion of the shaft. The apparatus for manufacturing the shaft has at least a first set of dies, at least a second set of dies, and a conveyance system for transferring the shaft between the die sets.
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申请公布号 |
US5127253(A) |
申请公布日期 |
1992.07.07 |
申请号 |
US19910728766 |
申请日期 |
1991.07.08 |
申请人 |
MITSUBA ELECTRIC MFG., CO., LTD. |
发明人 |
TAKAHARA, KATSUO;OKAJIMA, SHIGERU;ONODERA, TUGIO |
分类号 |
B21C23/14;B21K1/06;B21K1/30;F02N11/00 |
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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