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Back to Enhancement of Bending Formability of Brittle Sheet Metal...
Enhancement of Bending Formability of Brittle Sheet Metal...
Author/Editor:
J Yanagimoto
Description
Back to Enhancement of Bending Formability of Brittle Sheet Metal...
The formability of multilayer metallic sheets is evaluated by tensile, V-bending, hat bending and hemming tests. A monolithic type-420J2 stainless steel sheet cannot be formed because of poor elongation as small as 1.7%. Marked enhancement of the bending formability was observed in the bending of type-420J2 stainless steel sheets when they are layered by type-304 stainless steel sheets and composed into a multilayer metallic sheet. The mechanism of the enhancement of the formability of type-420J2 stainless steel in a multilayer metallic sheet is investigated analytically by focusing on the delay of the initiation of necking, and by performing stress analysis by finite element method (FEM). Annals of the CIRP, Vol. 59/1/2010.
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