Effects of metal powder characteristics on the compactibility and sinterability in micro metal injection molding process

Toshiko Osada, Kazuaki Nishiyabu, Satoru Matsuzaki, Shigeo Tanaka, Hideshi Miura

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

Metal injection molding for tiny parts is called micro metal injection molding, " μ-MIM" which is considered to be one of promising process to manufacture the micro parts for various applications. In μ-MIM, the feedstock properties, particularly particle size and shape of metal powder are significantly important for the quality of micro parts. The purpose of this study is to investigate the effect of metal powder characteristics on the compactibility and sinterability. The three types of powders (3 μm and 9 μm water-atomized powders and 3 μm gas atomized powder) were used for the comparison. The melt viscosity of the feedstock was utilized as an index for evaluation of compactibility by injection moding. Then the spring shape of green compact specimen was produced by the micro injection molding machine. The green density was also evaluated for compactibility of the feedstock. The density and grain size of sintered specimens were investigated by changing sintering temperature and time.

本文言語英語
ページ(範囲)148-153
ページ数6
ジャーナルNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
72
1
DOI
出版ステータス出版済み - 1 2006

All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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