Models for Numeric Simulation of Extrusion Stamping Processes for Metallic Powders Sintered Preforms

  1. Prof. Yves Bréchet
  1. Constantin S. Dumitru1,
  2. Mihai E. Mangra1 and
  3. Gheorghe A. Panoiu2

Published Online: 19 DEC 2005

DOI: 10.1002/3527606157.ch55

Microstructures, Mechanical Properties and Processes - Computer Simulation and Modelling, Volume 3

Microstructures, Mechanical Properties and Processes - Computer Simulation and Modelling, Volume 3

How to Cite

Dumitru, C. S., Mangra, M. E. and Panoiu, G. A. (2000) Models for Numeric Simulation of Extrusion Stamping Processes for Metallic Powders Sintered Preforms, in Microstructures, Mechanical Properties and Processes - Computer Simulation and Modelling, Volume 3 (ed Y. Bréchet), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606157.ch55

Editor Information

  1. Institut Nat. Polytechnique de Grenoble, L.T.P.-C.M. ENSEEG, BP75, Domaine Universitaires, 38402 Saint Martin D'Hères Cedex, France; Tel.: 0033–76–82 6610; Fax: 0033–76–82 6644

Author Information

  1. 1

    Dept. of Mechanics, University of Craiova, Romania

  2. 2

    SINTEROM Manufacturing Enterprise, Cluj-Napoca, Romania

Publication History

  1. Published Online: 19 DEC 2005
  2. Published Print: 20 APR 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301225

Online ISBN: 9783527606153

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Keywords:

  • microstructures;
  • computer simulation;
  • modelling of processes;
  • metallic powders;
  • sintered preforms;
  • extrusion stamping processes;
  • numeric simulation

Summary

The numeric simulation of extrusion stamping processes for preshapes sintered from metallic powders is used for industrial purposes in technologic parameters optimization and tools computer aided-designing. The achieved model is consisted of: general equation of particle flowing trajectories in a material in strain area, the constitutive elastic-plastic equations for big strains based on multiplier decomposition of gradient strain, non-linear models for contact and friction (static and dynamic), travel speeds variations, periods of time necessary for furnace load by the volume elements on each flowing trajectory.