Some Considerations on the Formability Parameter in Sheet-Metal Forming

[+] Author and Article Information
N. Kawai, Y. Kurosaki

Department of Mechanical Engineering, Nagoya University, Nagoya, Japan

M. Gotoh

Department of Precision Machinery Engineering, Gifu University, Gifu-ken, Japan

J. Eng. Ind 98(1), 211-216 (Feb 01, 1976) (6 pages) doi:10.1115/1.3438821 History: Received July 09, 1975; Online July 15, 2010


The applicability of the relative load-carrying capacity as a formability parameter is examined for deep-drawing, combined-forming, and pure stretch-forming tests, using various kinds of sheet metals. High correlations are observed between this parameter and the forming depth throughout these forming tests with all of the sheet metals used. In combined-forming the correlations are grouped according to the fracture mode, which are classified into three types: punch profile, intermediate, and wall fracture. The experimental results can be confirmed also by a simple theoretical analysis. Moreover, it is found that the parameters measured in each forming test are markedly correlative.

Copyright © 1976 by ASME
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