Analysis of the Effect of Strain Hardening on Central Bursting Defects in Drawing and Extrusion

[+] Author and Article Information
Z. Zimerman

Homer Research Laboratories, Bethlehem Steel Corporation, Bethlehem, Pa.

B. Avitzur

Department of Metallurgy and Materials Science, Lehigh University, Bethlehem, Pa.

J. Eng. Ind 92(1), 135-145 (Feb 01, 1970) (11 pages) doi:10.1115/1.3427698 History: Received May 03, 1968; Revised October 24, 1968; Online July 15, 2010


Central bursting defects in a strain-hardening material are analyzed. A criterion has been derived for the conditions that promote these defects, as a function of the coefficient of strain hardening, the percent reduction, the die semicone angle, and the coefficient of friction. The criterion was experimentally verified for homogeneous materials.

Copyright © 1970 by ASME
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