发明名称 |
Tube drawing method and device |
摘要 |
A method of elongating a tube (10) by way of a drawing ring (13), wherein, when elongating the tube (10), tensile forces are applied to an elongated tube portion (22) which has already passed through the effective drawing ring cross-section and that pressure forces are applied to a tube blank portion (11) which has not yet passed through the effective drawing ring cross-section, wherein the tensile forces are applied by a mandrel (16) which is positioned in the tube and which is connected to a front tube end in a form-fitting or force-locking way.
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申请公布号 |
US2002170331(A1) |
申请公布日期 |
2002.11.21 |
申请号 |
US20020118781 |
申请日期 |
2002.04.09 |
申请人 |
BROCHHEUSER ULRICH;STATEZNI HORST |
发明人 |
BROCHHEUSER ULRICH;STATEZNI HORST |
分类号 |
B21C37/16;B21C1/18;B21C1/22;B21C1/26;B21C1/32;B21K1/12;(IPC1-7):B21C1/26 |
主分类号 |
B21C37/16 |
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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