发明名称 Verfahren zum Umformen einer großflächigen Blechplatine zu einem Formteil, wie einem Außenhautteil einer Kraftfahrzeugkarosserie
摘要 A process for forming a large-surface metal plate into a shaped part includes using a molding tool. The tool includes a reservoir filled with incompressible fluid work medium, clamping jaws and a shaping die movable towards the reservoir. Profiling elements, corresponding to each other, are configured in the interior of the reservoir and on the outer edge of the shaping die. The external high pressure punching by means of the shaping die moved forward against the high pressure of the fluid work medium is ended, when the shaping die has reached the profiling elements in the reservoir, by the pressure of the fluid work medium in the reservoir being reduced. The boundary sections of the metal plate are then formed between the profiling elements, pressed against each other, of the shaping die and the reservoir, at low pressure of the fluid work medium or at zero pressure.
申请公布号 DE102004054120(B4) 申请公布日期 2006.08.24
申请号 DE20041054120 申请日期 2004.11.08
申请人 THYSSENKRUPP STEEL AG 发明人 MOELLER, KARL-HEINZ;SCHWARZ, STEFAN
分类号 B21D26/02 主分类号 B21D26/02
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