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Method and tool for expanding tubular members by electro-hydraulic forming

United States Patent

October 29, 2013
View the Complete Patent at the US Patent & Trademark Office
An electro-hydraulic forming tool having one or more electrodes for forming parts with sharp corners. The electrodes may be moved and sequentially discharged several times to form various areas of the tube. Alternatively, a plurality of electrodes may be provided that are provided within an insulating tube that defines a charge area opening. The insulating tube is moved to locate the charge area opening adjacent one of the electrodes to form spaced locations on a preform. In other embodiments, a filament wire is provided in a cartridge or supported by an insulative support.
Golovashchenko; Sergey Fedorovich (Beverly Hills, MI), Bonnen; John Joseph Francis (Milford, MI)
Ford Global Technologies, LLC (Dearborn, MI)
12/ 563,191
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.