面外延伸成形による熱可塑性樹脂製マイクロ構造の試作(J21-1 メカノマイクロシステム,J21 マイクロメカトロニクス)

概要

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In this report, an out-of-plane stretch forming is proposed as a novel method for manufacturing microstructures using thermoplastic resins. A trial forming machine is composed of a gate frame, forming parts, and a hydraulic cylinder. The forming part has a multihole vacuum chuck, a heater, a cooling water jaket, a heat-insulation plate, and heat-insulating water jaket. Two forming parts are located in vertical symmetry, and the lower part is moved by hydraulic cylinder. The vacuum chuck has many holes for forming wave-formed structures. In the trial forming, a polymethylmethacrylate (PMMA) plate (60x60x0.4mm) was located on the lower vacuum chuck. Then the PMMA plate was compressed by the upper and lower chucks, and a vacuum pump was turned on. Futhermore, the compressive displacement was increased, for sufficient suction of the resin into the holes and mending of the sinks about the holes produced by suction of resin. This second compression brought good chucking. Finally, the lower forming part went down, and the PMMA plate was fubricated by the wave form successfully.
社団法人日本機械学会の論文
2004-09-04