发明名称 |
METHOD OF MAKING A COLD FORMED DIFFERENTIAL HOUSING WITH INTEGRATED RING GEAR |
摘要 |
<p>A method for making a differential housing having a ring gear integrally formed therein includes the steps of providing a differential housing having an annular rim integrally preformed therein; supporting the differential housing between upper and lower halves of a rotatable holding tool such that the annular rim extends radially outwardly from the holding tool for movement therewith; providing a thickening tool having a tool surface engagable with the annular rim during rotation of the holding tool to form a thickened lip; and providing a gear forming tool engagable with the thickened lip during rotation of the holding tool, whereby a plurality of teeth are formed along the lip to form the ring gear.</p> |
申请公布号 |
EP1545810(B1) |
申请公布日期 |
2006.06.07 |
申请号 |
EP20030755539 |
申请日期 |
2003.09.29 |
申请人 |
TESMA INTERNATIONAL INC. |
发明人 |
LINDSAY, ALAN;LI, JIANWEN |
分类号 |
B21D53/28;B21K1/26;B21K1/30;B21K21/06;F16H48/08 |
主分类号 |
B21D53/28 |
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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