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RESEARCH PAPERS

Radial Flow Velocity Field for Predicting Upper-Bound Solutions for Plane Strain Extrusion

[+] Author and Article Information
R. G. Fenton

School of Mechanical Engineering, The University of New South Wales, Sydney, Australia

J. Basic Eng 90(1), 45-50 (Mar 01, 1968) (6 pages) doi:10.1115/1.3605063 History: Received April 27, 1967; Online November 03, 2011

Abstract

The upper bound of the average ram pressure, based on an assumed radial flow velocity field, is derived for plane strain extrusion. Ram pressures are calculated for a complete range of reduction ratios and die angles, considering a wide range of frictional conditions. Results are compared with upper-bound ram pressures obtained by considering velocity fields other than the radial flow field, and it is shown that for a considerable range of reduction ratios and die angles, the radial flow field yields better upper bounds for the average ram pressure.

Copyright © 1968 by ASME
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