Invention Grant
- Patent Title: Driver plate for electromagnetic forming of sheet metal
- Patent Title (中): 钣金电磁成型用驱动板
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Application No.: US11867734Application Date: 2007-10-05
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Publication No.: US07954357B2Publication Date: 2011-06-07
- Inventor: John R. Bradley , Glenn S. Daehn
- Applicant: John R. Bradley , Glenn S. Daehn
- Applicant Address: US MI Detroit US OH Columbus
- Assignee: GM Global Technology Operations LLC,The Ohio State University Research Foundation
- Current Assignee: GM Global Technology Operations LLC,The Ohio State University Research Foundation
- Current Assignee Address: US MI Detroit US OH Columbus
- Agency: Reising Ethington P.C.
- Main IPC: B21D26/00
- IPC: B21D26/00

Abstract:
A multi-layer driver plate is disclosed for use in electromagnetic sheet metal forming operations. In one embodiment, the driver plate comprises a first layer characterized by low electrical resistivity and thickness for inducement and application of a suitable electromagnetic forming force, a second layer comprising an elastomeric material for compressing a sheet metal workpiece against a die surface and then regaining its original pre-forming structure, and a third layer interposed between the first layer and the second layer to protect the EMF force providing layer and to provide overall strength and durability to the EMF driver plate.
Public/Granted literature
- US20090090162A1 Driver plate for electromagnetic forming of sheet metal Public/Granted day:2009-04-09
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