发明名称 |
Method of making motor vehicle torsion bar involves cold swaging ends of blank to increase diameter and drawing middle section of blank |
摘要 |
The method of making a motor vehicle torsion bar involves cold forming a cylindrical metal tube blank and swaging a first end (4). The central part of the blank is drawn (8) and the second end is then swaged. The ends are then expanded.
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申请公布号 |
FR2782661(A1) |
申请公布日期 |
2000.03.03 |
申请号 |
FR19980010689 |
申请日期 |
1998.08.25 |
申请人 |
ALLEVARD RESSORTS AUTOMOBILE |
发明人 |
BELLIATO YANNICK;VOISIN JEAN DOMINIQUE |
分类号 |
B21K1/10;B21K21/12;(IPC1-7):B21K21/12;B60G21/055 |
主分类号 |
B21K1/10 |
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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