Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Ceramic Core Processing Technology for the Glass Mold of Aspherical Lenses using High-speed Cutting Machine

고속 가공기를 활용한 비구면 안경렌즈 유리금형용 세라믹코어 가공기술

  • 류근만 (한국기초과학지원연구원) ;
  • 김효식 (충남대학교 기계공학과) ;
  • 김홍택 (충남대학교 기계공학과) ;
  • 양순철 (한국기초과학지원연구원) ;
  • 장기수 (한국기초과학지원연구원) ;
  • 김동익 (한국기초과학지원연구원) ;
  • 원종호 (충남대학교 기계공학과) ;
  • 김건희 (충남대학교 분석과학기술대학원)
  • Published : 2012.06.30
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Abstract

Ceramic core processing technology using 5-axis high-speed cutting machine is applied to make the glass molds for aspherical ophthalmic lenses. In the technology, optimum processing conditions for aspherical ceramic molds are based on minimal experimental data of surface roughness. Such surface roughness is influenced by fabricating tools, cutting speed, feed rate, and depth of cut, respectively. In this paper, we present that surface roughness and shape accuracy of aspheric ceramic mold obtained by optimum processing conditions are Pa $0.6184{\mu}m$ and Pt $5.0301{\mu}m$, respectively, and propose that these values are sufficiently possible to apply to making the glass molds for aspherical ophthalmic lenses.

Keywords

References

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