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Abstract
The object of the work presented here was to investigate the material properties important in causing elastic wrinkling during recovery of large shallow unsupported components of sheet metal after pressing and infacilitating removal of wrinkles originating in the forming of such pressings. The Yoshida test, developed to simulate the behaviour of such pressings, was used. It was found that growth and removal of plastic wrinkles and the magnitude of wrinkles caused by elastic recovery correlated largely with the yield strength and work hardening exponent of all metals (carbon steels, austenitic stainless steels, aluminium and its alloys, titanium, copper, and 70–30 brass) tested.
MST/1244