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Seal for fluid forming tools

United States Patent

March 20, 2012
View the Complete Patent at the US Patent & Trademark Office
An electro-hydraulic forming tool for forming a sheet metal blank in a one-sided die has first and second rigid rings that engage opposite sides of a sheet metal blank. The rigid rings are contained within slots on a die portion and a hydraulic force applicator portion of the forming tool. The seals are either resiliently biased by an elastomeric member or inherently resiliently biased into contact with the blank.
Golovashchenko; Sergey Fedorovich (Beverly Hills, MI), Bonnen; John Joseph Francis (Milford, MI)
Ford Global Technologies, LLC (Dearborn, MI)
12/ 563,487
September 21, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with U.S. Government support under Contract No. DE-FG36-08GO18128 awarded by the Department of Energy. The Government has certain rights in this invention.