Paper Title:
Analytical and Numerical Modelling of Strain and Strain Rate in Equal Channel Angular Pressing (ECAP)
  Abstract

Equal channel angular pressing (ECAP) is a convenient forming procedure among various severe plastic deformation processes. It is based on extruding material through specially designed entry and exit channel dies to produce an ultrafine grained microstructure. The properties of the materials obtained depend on the plastic deformation behaviour during ECAP, which is governed mainly by the die geometry, the material itself and the processing conditions. As the mechanical properties of the severely deformed material are directly related to the deformation history, understanding the phenomena associated with strain and strain rate development in the ECAP process is very important. In this study, the results of continuum modelling of ECAP are described in order to understand strain and strain developments. For this purpose, the results of modelling ECAP using the finite element method and analytical solution are presented for various geometric conditions. It was concluded that although deformation is nonuniform due to geometric effects, the strain and strain rate values obtained by the analytical solutions are not much different from the average results of the finite element method.

  Info
Periodical
Key Engineering Materials (Volumes 306-308)
Edited by
Ichsan Setya Putra and Djoko Suharto
Pages
965-970
DOI
10.4028/www.scientific.net/KEM.306-308.965
Citation
H. S. Kim, "Analytical and Numerical Modelling of Strain and Strain Rate in Equal Channel Angular Pressing (ECAP)", Key Engineering Materials, Vols. 306-308, pp. 965-970, 2006
Online since
March 2006
Authors
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Price
$32.00
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