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Microsystem Technologies
Published in: Microsystem Technologies 3/2018

24-08-2017 | Technical Paper

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

Authors: M. Sahli, H. Djoudi, J.-C. Gelin, T. Barriere, M. Assoul

Published in: Microsystem Technologies | Issue 3/2018

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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.
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Metadata
Title
Numerical simulation and experimental analysis of the sintered micro-parts using the powder injection molding process
Authors
M. Sahli
H. Djoudi
J.-C. Gelin
T. Barriere
M. Assoul
Publication date
24-08-2017
Publisher
Springer Berlin Heidelberg
Published in
Microsystem Technologies / Issue 3/2018
Print ISSN: 0946-7076
Electronic ISSN: 1432-1858
DOI
https://doi.org/10.1007/s00542-017-3533-3

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