Invention Grant
- Patent Title: Process for fabricating large-surface metal plate into a shaped part, such as an outer skin panel of a vehicle body
- Patent Title (中): 将大面积金属板制造成成形部件的工艺,例如车体的外皮面板
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Application No.: US11718881Application Date: 2005-11-04
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Publication No.: US07802458B2Publication Date: 2010-09-28
- Inventor: Karl-Heinz Möller , Stefan Schwarz
- Applicant: Karl-Heinz Möller , Stefan Schwarz
- Applicant Address: DE Duisburg
- Assignee: ThyssenKrupp Steel AG
- Current Assignee: ThyssenKrupp Steel AG
- Current Assignee Address: DE Duisburg
- Agency: Proskauer Rose LLP
- Priority: DE102004054120 20041108
- International Application: PCT/EP2005/011811 WO 20051104
- International Announcement: WO2006/048302 WO 20060511
- Main IPC: B21D22/10
- IPC: B21D22/10

Abstract:
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.
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