Paper Title:
Numerical Analysis on the Dissimilar Channel Angular Pressing by Multi-Pass Rolling
  Abstract

The dissimilar channel angular pressing (DCAP or CCSS) based on the equal channel angular pressing (ECAP) was numerically modeled and analyzed by means of a rigid-plastic two-dimensional finite element method. Multi-pass rolling is performed in two different manners; the feeding direction of samples into the DCAP-channel is maintained in Route A and the feeding direction is reversed in the Route B. The deformation of AA1100 sheets during the DCAP process comprises three distinct processes of rolling, bending and shearing. The shear deformation of an amount of 0.5 was concentrated at the corner of the DCAP-channel where the abrupt change in the direction of material flow occurred. Because differences in the shear deformation in Route A and Route B led to the different strain states throughout the thickness of the aluminum sheet, the strain history in the DCAP-channel was analyzed in various thickness layers by the shear and effective strain components.

  Info
Periodical
Materials Science Forum (Volumes 449-452)
Edited by
S.-G. Kang and T. Kobayashi
Pages
101-104
DOI
10.4028/www.scientific.net/MSF.449-452.101
Citation
H. J. Choi, B. B. Hwang, B.D. Ko, J. Y. Lim, D.H. Jang, "Numerical Analysis on the Dissimilar Channel Angular Pressing by Multi-Pass Rolling", Materials Science Forum, Vols. 449-452, pp. 101-104, 2004
Online since
March 2004
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$32.00
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