发明名称 |
APPARATUS AND METHOD FOR ROLL FORMING GEARS |
摘要 |
A wrought or powder metal gear preform is mounted for rotation about a first axis and then driven in meshing engagement with a roll forming die supported for rotation about a second axis transverse to the first axis. The roll forming die includes a helical worm thread that moves radially as well as axially across the face of the preform teeth to displace the material of the preform. In the case of a powder metal preform, displacement of the material acts to densify the teeth, whereas in the case of a wrought preform the gear teeth are burnished. The preform and roll forming die are separately driven to control densification. |
申请公布号 |
EP1163064(A4) |
申请公布日期 |
2003.07.30 |
申请号 |
EP20000908361 |
申请日期 |
2000.01.25 |
申请人 |
FEDERAL-MOGUL CORPORATION |
发明人 |
WOOLF, RICHARD, M.;TRASORRAS, JUAN, R., L. |
分类号 |
B21H5/02;B22F5/08;B23P15/14 |
主分类号 |
B21H5/02 |
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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