Thermal and mechanical coupling in granular modeling for metal injection molding

Takashi Iwai, Tatsuhiko Aizawa, Junji Kihara

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Metal injection molding (MIM) employs viscous thermoplastic polymer materials (binders)_ with metallic powders to improve flowability and formability. It is essential to be able to describe the behavior of such mixed materials, for this purpose a new granular model being proposed to deal with the powder characteristics and mechanics. The composite element is designed to consider both elasticity and viscosity for powder particles and binders. A thermal and mechanical coupling effect is introduced directly to describe the cooling process. Numerical results demonstrate the effectiveness and validity of the presently-developed granular modeling in dealing with the various phenomena appearing in the MIM process.

Original languageEnglish
Pages (from-to)175-185
Number of pages11
JournalJournal of Materials Processing Tech.
Issue number2
Publication statusPublished - 1994 Apr

ASJC Scopus subject areas

  • Ceramics and Composites
  • Computer Science Applications
  • Metals and Alloys
  • Industrial and Manufacturing Engineering


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