High Hardness of Conductive Micro Fastener Manufactured by Micromolding Method

Kohki Mukai; Rikiya Munekata; Jun Tanaka; Satoshi Sakamoto; Seisuke Nakashima; Toru Katakura; Masatoshi Hayakawa

doi:10.14723/tmrsj.38.409

Regular Papers

High Hardness of Conductive Micro Fastener Manufactured by Micromolding Method

Kohki Mukai, Rikiya Munekata, Jun Tanaka, Satoshi Sakamoto, Seisuke Nakashima, Toru Katakura, Masatoshi Hayakawa

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Keywords: micromolding, micromachine, photocurable resin, Vickers hardness, electroless plating

JOURNAL FREE ACCESS

2013 Volume 38 Issue 3 Pages 409-413

DOI https://doi.org/10.14723/tmrsj.38.409

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Abstract

We report that the nickel micro parts produced via the micromolding method were highly hardened through the heat treatment. The resin mold modeled by stereolithography was replicated by nickel electroless plating to fabricate the nickel micro fastener. Vickers hardness of the nickel parts was improved to 800 HV by 200℃ heat treatment. The hardness depended on the heat-treatment temperature, and it was attributed to the result of competition between the re-crystallization of nickel and the eduction of nickel-phosphorus compound.

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