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The effects of metal particle size and distributions on dimensional accuracy for micro parts in micro metal injection molding

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Abstract

This study aims to develop processing techniques to improve dimensional accuracy of micro-size parts produced by micro metal injection molding (μ-MIM). Micro dumbbell specimens were molded by a micro injection molding machine, which can monitor the cavity pressure in injection molding process. The effects of particle size and distribution of metal powder on dimensional accuracy of micro dumbbell specimens at both grip parts were investigated. As the results, it is confirmed that the powder properties and sintering conditions to improve the dimensional accuracy of micro-MIM parts.

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Authors and Affiliations

  1. Taisei Kogyo Co., Ltd, 26-1, Ikeda-Kitamachi Neyagawa, Osaka, 572-0073, Japan

    Kenji Okubo & Shigeo Tanaka

  2. Yamagata University, 4-3-16, Jonan Yonezawa, Yamagata, 992-8510, Japan

    Hiroshi Ito

Authors
  1. Kenji Okubo
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  2. Shigeo Tanaka
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  3. Hiroshi Ito
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Corresponding author

Correspondence to Kenji Okubo.

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Okubo, K., Tanaka, S. & Ito, H. The effects of metal particle size and distributions on dimensional accuracy for micro parts in micro metal injection molding. Microsyst Technol 16, 2037–2041 (2010). https://doi.org/10.1007/s00542-010-1122-9

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  • DOI: https://doi.org/10.1007/s00542-010-1122-9

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