发明名称 Method and device for connecting together two superposed plates has wedge-shaped work surface on ram to displace material differently in two cross directions at right angles to each other for stronger connection
摘要 The plates are connected by drawing sections together in a deep drawn opening (9) of the matrix (8)and squashing them out radially. The work surface (4,5,6) of the ram (1) is wedge-shaped so that the material is displaced more in a first cross direction than in a second at right angles thereto with soft transitions between the two directions. The wall parts of the second additional plate sections are thinned out in the first direction area to form a tear-off separation without weakening the first plate section. The plate sections are partially separated from each other by the deep drawn edges but in another position turned by 90 degrees they are still connected to the plates.
申请公布号 DE19929377(A1) 申请公布日期 2000.12.28
申请号 DE19991029377 申请日期 1999.06.25
申请人 TOX PRESSOTECHNIK GMBH 发明人 RAPP, EUGEN
分类号 B21D39/03;B65B51/09;(IPC1-7):B21D39/03 主分类号 B21D39/03
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