TY - JOUR
T1 - Enhancement of bending formability of brittle sheet metal in multilayer metallic sheets
AU - Yanagimoto, J.
AU - Oya, T.
AU - Kawanishi, S.
AU - Tiesler, N.
AU - Koseki, T.
N1 - Funding Information:
The present research was conducted as part of the LISM (Layer-Integrated Steels and Metals) Project funded by the Ministry of Education, Culture, Sports, Science and Technology of Japan .
PY - 2010
Y1 - 2010
N2 - 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).
AB - 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).
KW - Enhanced formability
KW - Multilayer metallic sheet
KW - Sheet metal forming
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U2 - 10.1016/j.cirp.2010.03.109
DO - 10.1016/j.cirp.2010.03.109
M3 - Article
AN - SCOPUS:77955325182
SN - 0007-8506
VL - 59
SP - 287
EP - 290
JO - CIRP Annals - Manufacturing Technology
JF - CIRP Annals - Manufacturing Technology
IS - 1
ER -