Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Study on Ultra-precision Grinding of EL-Max Material for Hot Press Molding

핫 프레스 성형용 EL-Max 소재 초정밀 연삭 가공에 관한 연구

  • Park, Soon Sub (Honam Regional Division, Korea Institute of Industrial Technology) ;
  • Ko, Myeong Jin (Honam Regional Division, Korea Institute of Industrial Technology) ;
  • Kim, Geon Hee (Korea Basic Science Institute) ;
  • Won, Jong Ho (Department of Mechanical Engineering, Chungnam National University)
  • 박순섭 (한국생산기술연구원 호남권지역본부) ;
  • 고명진 (한국생산기술연구원 호남권지역본부) ;
  • 김건희 (한국기초과학지원연구원) ;
  • 원종호 (충남대학교 기계공학과)
  • Received : 2012.10.16
  • Accepted : 2012.10.23
  • Published : 2012.12.01
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Abstract

Demand for optical glass device used for lighting could increase rapidly because of LED lighting market growth. The optical glass devices that have been formed by hot press molding process the desired optical performance without being subjected to mechanical processing such as curve generation or grinding. EL-Max material has been used for many engineering applications because of their high wear resistance, high compressive strength, corrosion resistant and very good dimensional stability. EL-Max is very useful for a glass lens mold especially at high temperature and pressure. The performance and reliability of optical components are strongly influenced by the surface damage of EL-Max during grinding process. Therefore, the severe process condition optimization shall be necessary for the highly qualified EL-Max glass lens mold. To get the required qualified surface of EL-Max, the selection of type of the diamond wheel is also important. In this paper, we report best grinding conditions of ultra-precision grinding machining. The grinding machining results of the form accuracy and surface roughness have been analyzed by using Form Talysurf and NanoScan.

Keywords

Acknowledgement

Supported by : 한국생산기술연구원

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