Improvement of glass formability in ultrasonic vibration assisted molding process

Tianfeng Zhou, Jiaqing Xie, Jiwang Yan, Kuriyagawa Tsunemoto, Xibin Wang

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Micro optical elements with complex shapes are needed increasingly in optical, optoelectronic and biomedical industries. Since glass molding process is an effective approach to fabricate microstructures, and its surface quality strongly depends on the filling capacity of glass at high temperature. To improve the formability and reduce adhesion between the glass and the mold at high temperature, ultrasonic vibration is applied to improve the formability in the molding process. Fundamental experiments are carried out to test the effectiveness of ultrasonic vibration on friction force decrease and a bonding model on the glass-mold interface at elevated temperature is proposed. Finite element method (FEM) simulation and glass molding experiments are conducted to evaluate the improvements of material formability brought about by ultrasonic vibration. The results show that the ultrasonic vibration can significantly lower the friction force and increase the glass formability.

Original languageEnglish
Pages (from-to)57-62
Number of pages6
JournalInternational Journal of Precision Engineering and Manufacturing
Volume18
Issue number1
DOIs
Publication statusPublished - 2017 Jan 1

Keywords

  • Formability
  • Interfacial friction
  • Micro forming
  • Molding
  • Ultrasonic vibration

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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