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RESEARCH PAPERS

An Explanation of the Apparent Bridgman Effect in Merchant’s Orthogonal Cutting Results

[+] Author and Article Information
P. L. B. Oxley

Department of Industrial Engineering, University of New South Wales, Kensington, N. S. W., Australia

M. J. M. Welsh

Production Tool Alloy Company, Ltd., Sharpenhoe, Bedford, England

J. Eng. Ind 89(3), 549-555 (Aug 01, 1967) (7 pages) doi:10.1115/1.3610106 History: Received October 01, 1965; Online August 25, 2011

Abstract

In Merchant’s modified shear angle solution, it is assumed following Bridgman that the shear strength of the work material is a function of the hydrostatic stress. Although Merchant’s experimental results confirm the assumed relation, subsequent workers have failed to obtain such agreement. In this paper, it is shown that Merchant’s results can be explained independently of the Bridgman effect by considering the variable flow stress properties of the work material, which are strain-rate dependent.

Copyright © 1967 by ASME
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