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Densification Behavior of Metal Powder Under Uniaxial Cold Compaction

[+] Author Affiliations
Mostafa Darroudi, Hojat Ghassemi

Iran University of Science and Technology, Tehran, Iran

Mahmoud Akbari Baseri

Engineering Research Institute, Tehran, Iran

Paper No. ESDA2010-24562, pp. 455-460; 6 pages
  • ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis
  • ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 1
  • Istanbul, Turkey, July 12–14, 2010
  • Conference Sponsors: International
  • ISBN: 978-0-7918-4915-6 | eISBN: 978-0-7918-3877-8
  • Copyright © 2010 by ASME


Metal powder compaction is a quite important process in Powder Metallurgy (PM) industry and it is widely applied in the manufacturing of key components in different fields. During metal powder compaction, the solid volume fraction changes and many mechanical characteristics become different. The Finite Element simulation provides a flexible and efficient approach for the researches of this process and its complicated mechanical behaviors. In this paper, several 2D finite element spherical powder compaction models are generated. Different particle arrangements are build up and different friction coefficients are set to the inter-particle contacts and die wall contact for a certain arrangement. The Von Mises yield surface with isotropic hardening plasticity model is applied in the simulation and the displacement controlled load is used to compress the structure up to 25% of die height. Results show that the die wall friction increases compaction pressure but inter-particle friction has negligible effect.

Copyright © 2010 by ASME



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