Basic study on ultra-precision grinding of optical glass lens by CeO2chemical reaction assistance

Yoshiki Konuma, Yasuhiro Kakinuma, Masahiko Fukuta, Katsutoshi Tanaka

Research output: Contribution to conferencePaperpeer-review

Abstract

Large aperture lenses which are used for single-lens reflex cameras and astronomical telescopes are manufactured by both ultra-precision grinding to make precise shape and polishing to improve surface quality. However, prolonged polishing deteriorates lens shape accuracy and decreases productivity. In order to reduce polishing amount and obtain finer surface without cracks before polishing, it is required to develop a highly-efficient ductilemode grinding technology. In this study, a novel ultra-precision grinding method assisted by CeO2chemical reaction is proposed and its performance is experimentally evaluated. The results show that crackless surface can be successfully obtained over the entire surface at three times higher tool feed rate, compared with conventional grinding without CeO2assistance.

Original languageEnglish
Publication statusPublished - 2018
Event21st International Symposium on Advances in Abrasive Technology, ISAAT 2018 - Toronto, Canada
Duration: 2018 Oct 142018 Oct 16

Conference

Conference21st International Symposium on Advances in Abrasive Technology, ISAAT 2018
Country/TerritoryCanada
CityToronto
Period18/10/1418/10/16

Keywords

  • Chemical reaction
  • Diamond wheel
  • Optical glass lens
  • Ultra-precision grinding

ASJC Scopus subject areas

  • Mechanics of Materials
  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Materials Science(all)

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