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An upper bound solution of ECAE process with outer curved corner

Eivani, A. R ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jmatprotec.2006.09.021
  3. Publisher: 2007
  4. Abstract:
  5. In this research, deformation of material in equal channel angular extrusion (ECAE) process with outer curved corner is analyzed using an upper bound solution. The effects of die angle, friction between the sample and the die walls, and the angle of the outer curved corner, on the extrusion pressure are all considered in the analysis. It is found that the extrusion pressure decreases with increasing both the die angle and the outer curved corner angle and increases with increasing the friction coefficient. Moreover, a good agreement is found between the predicted and experimental results of extrusion pressure relating to two dies of different outer curved corner angles used in ECAE tests of an aluminum alloy, AA 6070. © 2006 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Deformation ; Dies ; Extrusion ; Friction ; Pressure effects ; Friction coefficient ; Outer curved corner ; Upper bound ; Materials science
  8. Source: Journal of Materials Processing Technology ; Volume 182, Issue 1-3 , 2007 , Pages 555-563 ; 09240136 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0924013606008260