The Influence of Strain Hardening and Strain-Rate Sensitivity on Sheet Metal Forming

[+] Author and Article Information
A. K. Ghosh

Research Laboratories, General Motors Corp., Warren, Mich.

J. Eng. Mater. Technol 99(3), 264-274 (Jul 01, 1977) (11 pages) doi:10.1115/1.3443530 History: Received July 06, 1976; Revised September 27, 1976; Online August 17, 2010


The current understanding of sheet metal stamping processes is discussed in the light of materials’ ability to distribute plastic strains in uniaxial and biaxial deformation. The focus is on the plastic flow properties, namely strain hardening and strain-rate sensitivity. Distribution of strain from uniaxial tensile specimens and sheets stretched over a rigid punch are presented for a number of sheet materials to illustrate the importance of these properties. Some effects of deformation rate are also presented.

Copyright © 1977 by ASME
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