Mirror surface grinding of sapphire by coarse grain size diamond wheels

Hiroshi Kasuga, Hitoshi Ohmori, Masayoshi Mizutani, Akihiko Nemoto

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

This paper discusses the grinding of sapphire for mirror surfaces by coarse grain size diamond wheels. Sapphire is a hard-to-machine material because it has excellent mechanical properties and indentation hardness. Since it is effective for hard materials to use metal-bonded diamond wheels, the authors had two experiments to investigate mirror surface grinding by coarse grain size diamond wheels. The 1st experiment was investigating appropriate grinding conditions, and the 2nd experiment was investigating protrusion height of abrasive grains. Although the conventional methods could not acquire mirror surface, the results of the experiments show that mirror surface (Ra: 5 nm <) were obtained by the #270 and #325 mesh size wheels. These results indicate the possibility of decreasing grinding processes by coarse grain size diamond wheels.

Original languageEnglish
Pages (from-to)309-318
Number of pages10
JournalInternational Journal of Nanomanufacturing
Volume10
Issue number3
DOIs
Publication statusPublished - 2014

Keywords

  • Coarse grain
  • Diamond wheel
  • Grinding
  • Mirror surface
  • Sapphire

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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