发明名称 Device for shape-forming an end region of a workpiece
摘要 The invention relates to a device for forming an end area of a workpiece (2), especially for cold press-forming an end area of a pipe, comprising two force transmitting elements (7, 9) which are guided in a common housing (3). The device is characterised in that a first pressure chamber (26) is located between the two force transmission elements (7, 9) and in that a second pressure chamber (28) is allocated to the second force transmission element (9). When the first force transmission element (7) is in the bracing position, the second force transmission element (9) can be displaced in relation to the first force transmission element (7) in order to form the workpiece.
申请公布号 US6708548(B2) 申请公布日期 2004.03.23
申请号 US20020240620 申请日期 2002.09.30
申请人 PARKER-HANNIFIN GMBH 发明人 EHRKE DIETER;HUNKENSCHROEDER UDO;RUNTE FRANK-STEFAN;ZIEHL MARTIN
分类号 B21D41/00;B21D41/02;B21J5/08;B21J9/06;B21J9/12;B21K21/12;(IPC1-7):B21D41/00 主分类号 B21D41/00
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