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Title: Numerical Predictions on the Final Properties of Metal Injection Moulded Components after Sintering Process

Abstract

A macroscopic model based on a viscoplastic constitutive law is presented to describe the sintering process of metallic powder components obtained by injection moulding. The model parameters are identified by the gravitational beam-bending tests in sintering and the sintering experiments in dilatometer. The finite element simulations are carried out to predict the shrinkage, density and strength after sintering. The simulation results have been compared to the experimental ones, and a good agreement has been obtained.

Authors:
 [1];  [2]; ;  [1];  [3]
  1. Femto-ST Institute/LMA, ENSMM, 26 Rue de l'Epitaphe, 25000 Besancon (France)
  2. (China)
  3. Department of Applied Mechanics, Southwest Jiaotong University, 610031 Chengdu (China)
Publication Date:
OSTI Identifier:
21057042
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 907; Journal Issue: 1; Conference: 10. ESAFORM conference on material forming, Zaragoza (Spain), 18-20 Apr 2007; Other Information: DOI: 10.1063/1.2729485; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BENDING; COMPUTERIZED SIMULATION; DENSITY; DILATOMETRY; FINITE ELEMENT METHOD; METALS; MOLDING; PLASTICITY; POWDERS; SHRINKAGE; SINTERING; TESTING; VISCOSITY

Citation Formats

Song, J., Department of Applied Mechanics, Southwest Jiaotong University, 610031 Chengdu, Barriere, T., Gelin, J. C., and Liu, B.. Numerical Predictions on the Final Properties of Metal Injection Moulded Components after Sintering Process. United States: N. p., 2007. Web. doi:10.1063/1.2729485.
Song, J., Department of Applied Mechanics, Southwest Jiaotong University, 610031 Chengdu, Barriere, T., Gelin, J. C., & Liu, B.. Numerical Predictions on the Final Properties of Metal Injection Moulded Components after Sintering Process. United States. doi:10.1063/1.2729485.
Song, J., Department of Applied Mechanics, Southwest Jiaotong University, 610031 Chengdu, Barriere, T., Gelin, J. C., and Liu, B.. Sat . "Numerical Predictions on the Final Properties of Metal Injection Moulded Components after Sintering Process". United States. doi:10.1063/1.2729485.
@article{osti_21057042,
title = {Numerical Predictions on the Final Properties of Metal Injection Moulded Components after Sintering Process},
author = {Song, J. and Department of Applied Mechanics, Southwest Jiaotong University, 610031 Chengdu and Barriere, T. and Gelin, J. C. and Liu, B.},
abstractNote = {A macroscopic model based on a viscoplastic constitutive law is presented to describe the sintering process of metallic powder components obtained by injection moulding. The model parameters are identified by the gravitational beam-bending tests in sintering and the sintering experiments in dilatometer. The finite element simulations are carried out to predict the shrinkage, density and strength after sintering. The simulation results have been compared to the experimental ones, and a good agreement has been obtained.},
doi = {10.1063/1.2729485},
journal = {AIP Conference Proceedings},
number = 1,
volume = 907,
place = {United States},
year = {Sat Apr 07 00:00:00 EDT 2007},
month = {Sat Apr 07 00:00:00 EDT 2007}
}
  • A phenomenological model based on viscoplastic constitutive law is presented to describe the sintering process of ceramic components obtained by powder injection moulding. The parameters entering in the model are identified through sintering experiments in dilatometer with the proposed optimization method. The finite element simulations are carried out to predict the density variations and dimensional changes of the components during sintering. A simulation example on the sintering process of hip implant in alumina has been conducted. The simulation results have been compared with the experimental ones. A good agreement is obtained.
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