发明公开
EP1654079A1 VERFAHREN ZUM HERSTELLEN VON HOHLKÖRPERN, HOHLKÖRPER UND VERWENDUNG DES HOHLKÖRPERS
审中-公开
方法用于生产空心体，空心体和空心体的用途
- 专利标题： VERFAHREN ZUM HERSTELLEN VON HOHLKÖRPERN, HOHLKÖRPER UND VERWENDUNG DES HOHLKÖRPERS
- 专利标题（英）： Method for producing hollow bodies, hollow body, and use of the same
- 专利标题（中）： 方法用于生产空心体，空心体和空心体的用途
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申请号： EP04738787.3申请日： 2004-06-25
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公开(公告)号： EP1654079A1公开(公告)日： 2006-05-10
- 发明人: CLAUS, Ronald , MERTZ, Andreas
- 申请人： WILLY VOIT GMBH & Co.
- 申请人地址： Stanz- und Metallwerk, Saarbrücker Strasse, 2 D-66386 St Ingbert DE
- 专利权人： WILLY VOIT GMBH & Co.
- 当前专利权人： WILLY VOIT GMBH & Co.
- 当前专利权人地址： Stanz- und Metallwerk, Saarbrücker Strasse, 2 D-66386 St Ingbert DE
- 代理机构： Vièl, Christof
- 优先权： DE10337929 20030814
- 国际公布： WO2005016570 20050224
- 主分类号： B21D22/16
- IPC分类号： B21D22/16 ; B21D41/04
摘要：
The invention relates to a method for producing weldable, highly resistant hollow bodies (1) from a tubular blank, to which a graduation of the diameter and/or the wall thickness with at least a conical or a stepped transition is applied by means of cold forming by flow-turning (A). The invention also relates to a hollow body and to the use thereof. The aim of the invention is to provide a method that enables an application-optimised, highly resistant, weldable hollow body (1) to be formed with low production costs and a high level of flexibility in the shaping and production thereof. To this end, the forming process is carried out by means of flow-turning, at least the formed region being cooled during the forming process.
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