Paper Title:
Simulation of Three-Dimensional Stress Distribution in Compression Dies
  Abstract

The stress fields of rectangular and T shape compression dies were simulated by three dimensional photo-elasticity of stress freezing method. The rules of stress distribution of σx, σy, σz on the surface of rectangular and T-shaped dies were discovered, and the rules were also found inside the dies. The results indicate that the stress distribution of rectangular die is similar to that of T shape die. Obvious stress concentration in corner of die hole was observed. σz rises from die hole to periphery until it achieves maximum value then it diminishes gradually, and σz between die hole and fix diameter zone is higher than it is in other position. At the same time, the equations of stress field of extrusion dies were obtained by curved surface fitting experimental values in every observed point with multiple-unit regression analysis method and orthogonal transforms. These works can provide stress distribution model for die computer aided design and make.

  Info
Periodical
Materials Science Forum (Volumes 575-578)
Edited by
Jitai NIU, Zuyan LIU, Cheng JIN and Guangtao Zhou
Pages
449-454
DOI
10.4028/www.scientific.net/MSF.575-578.449
Citation
C. Y. Huang, S. Y. Wang, T. Yang, X. D. Yan, "Simulation of Three-Dimensional Stress Distribution in Compression Dies", Materials Science Forum, Vols. 575-578, pp. 449-454, 2008
Online since
April 2008
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Price
$32.00
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