Authors: Mamutov, A. V.
Golovashchenko, S. F.
Bonnen, J. J.
Gillard, A. J.
Dawson, S. A.
Maison, L.
Title: Electrohydraulic Forming of Light Weight Automotive Panels
Language (ISO): en
Abstract: This paper describes the results of development of the electrohydraulic forming (EHF) process as a near-net shape automotive panel manufacturing technology. EHF is an electro-dynamic process based upon high-voltage discharge of capacitors between two electrodes positioned in a fluid-filled chamber. This process is extremely fast, uses lowercost single-sided tooling, and potentially derives significantly increased formability from many sheet metal materials due to the elevated strain rate. Major results obtained during this study include: developing numerical model of the EHF; demonstrating increased formability for high-strength materials and other technical benefits of using EHF; developing the electrode design suitable for high volume production conditions; understanding the limitations on loads on the die in pulsed forming conditions; developing an automated fully computer controlled and robust EHF cell; demonstration of electrohydraulic springback calibration and electrohydraulic trimming of stamped panels; full scale demonstration of a hybrid conventional and EHF forming process for automotive dash panel.
Subject Headings: electrohydraulic forming
automotive panels
high voltage discharge
Subject Headings (RSWK): Umformen
Issue Date: 2016-04-27
Is part of: 7th International Conference on High Speed Forming, April 27th-28th 2016, Dortmund, Germany
Appears in Collections:ICHSF 2016

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