Numerical simulation and experimental analysis of the sintered micro-parts using the powder injection molding process

  • M. Sahli
  • H. Djoudi
  • J.-C. Gelin
  • T. Barriere
  • M. Assoul
Technical Paper

Abstract

This paper discusses in detail the development of numerical simulations capable of simulating structural evolution and macroscopic deformation during a powder injection molding process. A sintering model based on elastic-visco-plastic constitutive equations was proposed, and the corresponding parameters such as sintering stress, bulk and shearing viscosities were identified from dilatometer experimental data. As a complement to this experimental study, a finite element simulation of the sintering operation was performed. The simulations were based on constitutive equations identified from specific experiments performed for each blend at different sintering heating rates and loadings. Finally, the numerical analyses, performed on the 3D micro-structured components, allow the numerical predictions to be compared with experimental results of sintering stage. They show that the FE simulation results have better agreement with the experimental ones at high temperatures.

Notes

Compliance with ethical standards

Funding

This study was not funded by any Company.

Conflict of interest

All the authors have not received research grants, a speaker honorarium from any Company and own not stock in any Company. All the authors are not a member of any committee. OR if no conflict exists: The authors declare that they have no conflict of interest.

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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • M. Sahli
    • 1
    • 2
  • H. Djoudi
    • 1
  • J.-C. Gelin
    • 1
  • T. Barriere
    • 1
  • M. Assoul
    • 1
  1. 1.Applied Mechanics Department, CNRS, UMR 6174Femto-ST InstituteBesançon cedexFrance
  2. 2.Mechanics Laboratory, Faculty of Engineering SciencesUniversity MentouriConstantineAlgeria

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