| 发明名称 |
Method for forming pipes and for manufacturing hollow shafts |
| 摘要 |
In a process to modify the shape of a hollow shaft (5), the shaft is inserted in a sleeve (1, 2) with a variable inner cross sectional profile that includes a zone whose inner diameter (A) is greater than that of the shaft (5). In a second stage a mandrel (3, 5) is inserted into the hollow shaft (5) which is then subject to longitudinal compression. Also claimed is a commensurate assembly. |
| 申请公布号 |
EP1611973(A1) |
申请公布日期 |
2006.01.04 |
| 申请号 |
EP20050014313 |
申请日期 |
2005.07.01 |
| 申请人 |
IFUTEC INGENIEURBUERO FUER UMFORMTECHNIK GMBH;STIFTUNG FACHHOCHSCHULE OSNABRUECK |
发明人 |
ADAMS, BERNHARD, PROF. DR.-ING.;RAUSCHNABEL, EBERHARD, DR.-ING.;JUHR, KARSTEN, DIPL.-ING. |
| 分类号 |
B21D53/84;B21J5/08;B21K1/06;B21K1/12 |
主分类号 |
B21D53/84 |
| 代理机构 |
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