Evaluation on the homogeneity of feedstock for micro size parts produced by MIM

Toshiko Osada, Kazuaki Nishiyabu, Yasuo Karasaki, Shigeo Tanaka, Hideshi Miura

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Producing the micro size parts by Metal Injection Molding (MIM) needs more sophisticated technique than the conventional injection molding. Especially, inhomogeneous state of the feedstock will strongly influence on the quality of the final products. In order to evaluate the mixing and palletizing conditions of the feedstock, statistical variations of density and binder contents in individual pellet were investigated by the weight measurement. These variations were discussed with coefficient of variation. The micro dumbbell specimens were fabricated using the feedstock, and the density and strength were investigated. Moreover, in order to improve the feedstock properties, re-pelletizing was performed. It was found that the homogeneity of the pellet was one of the important factors for quality of the micro size parts produced by MIM.

Original languageEnglish
Pages (from-to)435-440
Number of pages6
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Issue number6
Publication statusPublished - Jun 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry


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