Improvement of the forming ability in microgroove molding by ultrasonic vibration

Tianfeng Zhou, Jiwang Yan, Sergey Bolotov, Tsunemoto Kuriyagawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Microgrooves with a pitch at wave length level are increasingly needed in the optical system. Conventional microgroove molding is able to fabricate the microgrooves, but the forming accuracy is low because of the incomplete filling of the material in the cavity of microgroove mold, and surface defect or internal defect occurs easily because the air trapped during the pressing. In this research, ultrasonic vibration was applied to the improvement of the forming ability of the molding process for microgrooves. Basic experiments were carried out to test the effects of ultrasonic vibration on friction force decrease and material flow ability improvement. An ultrasonic assisted molding machine was developed and used to fabricate microgrooves on methacrylic resin surface by using the Nickel Phosphorous (Ni-P) mold. Form accuracy and surface quality of microgrooves were confirmed to be improved by comparing the ultrasonic assisted molding with the conventional molding.

Original languageEnglish
Title of host publicationProceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011
Publication statusPublished - 2011
Externally publishedYes
Event6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011 - Omiya Sonic City, Saitama, Japan
Duration: 2011 Nov 82011 Nov 10

Other

Other6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011
CountryJapan
CityOmiya Sonic City, Saitama
Period11/11/811/11/10

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Keywords

  • Microforming
  • Microgroove
  • Molding
  • Ni-P mold
  • Ultrasonic vibration

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

Cite this

Zhou, T., Yan, J., Bolotov, S., & Kuriyagawa, T. (2011). Improvement of the forming ability in microgroove molding by ultrasonic vibration. In Proceedings of the 6th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2011