发明名称 |
METHOD FOR FORGING SERIES OF RING ROLL PREFORM AND FORGING MOLD THEREFOR |
摘要 |
A method (Figures 4 and 4A) for making ring rolling preforms (102) of substantially toroidal shape for ring rolling (84) into substantially rectangular cross-sectional wall shaped forging blank rings (104) to be precision forged (86) into near net ring gear forgings (106) for heavy-duty drive axle ring gears (14) is provided. The method, and the preform forging die (138) used therefor, allow a series of preforms having between eighty percent (80%) to one hundred percent (100%) of the volume of the toroidal cavity portion (150) of the preform die to be forged utilizing a common die. |
申请公布号 |
JPS63215331(A) |
申请公布日期 |
1988.09.07 |
申请号 |
JP19880029984 |
申请日期 |
1988.02.10 |
申请人 |
EATON CORP |
发明人 |
JIEEMUZU RICHIYAADO DAGURASU |
分类号 |
B21K1/00;B21H1/06;B21J1/06;B21J13/02;B21K1/30;B21K1/76;B21K21/06 |
主分类号 |
B21K1/00 |
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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