Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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A study on size variation of micro-pattern according to turning radius of workpiece in diamond turning with controlled random cutting depth

절삭 깊이의 무작위 제어를 적용한 다이아몬드 선삭공정에서 소재회전 반경에 따른 미세패턴의 크기변화 분석 연구

  • Jeong, Ji-Young (Department of Nano Manufacturing Technology, Korea Institute of Machinery & Materials) ;
  • Han, Jun-Se (Department of Nano Mechatronics, University of Science and Technology) ;
  • Choi, Doo-Sun (Department of Nano Mechatronics, University of Science and Technology) ;
  • Je, Tae-Jin (Department of Nano Manufacturing Technology, Korea Institute of Machinery & Materials)
  • 정지영 (과학기술연합대학원대학교 나노메카트로닉스학과) ;
  • 한준세 (한국기계연구원 나노공정연구실) ;
  • 최두선 (한국기계연구원 나노공정연구실) ;
  • 제태진 (과학기술연합대학원대학교 나노메카트로닉스학과)
  • Received : 2020.03.19
  • Accepted : 2020.03.31
  • Published : 2020.03.31
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Abstract

Ultra-high brightness and thin displays need to optical micro-patterns which can uniformly diffuse the lights and low loss. The micro random patterns have characteristics to rise the optical efficiency such as light extraction, uniform diffusion. For this reason, various fabrication processes are studied for random patterns. In this study, the micro random patterns were machined by diamond turning which used a controlled cutting tool path with random cutting depth. The machined patterns had random shape and directionality along the circumferential direction. The average width and length of machined random pattern according to rotation radius were 40.13㎛~55.51㎛ and 37.25㎛~59.49㎛, and these results were compared with the designed result. Also, the machining error according to rotation radius in diamond turning using randomly controlled cutting depth was discussed.

Keywords

Acknowledgement

Grant : 형상정밀도 100nm급 차세대 모바일용 광학렌즈 고균질 제조를 위한 4축 초정밀 가공시스템 및 렌즈모듈 제조 원천기술 개발, 고정밀 광학부품용 가공기 및 초정밀 Grooving 머신실증

Supported by : 산업통상자원부

본 연구는 정부(산업통상자원부)의 기계산업핵심기술개발사업 "형상정밀도 100nm급 차세대 모바일용 광학렌즈 고균질 제조를 위한 4축 초정밀 가공시스템 및 렌즈모듈 제조 원천기술 개발"과 "고정밀 광학부품용 가공기 및 초정밀 Grooving 머신실증"의 지원으로 수행되었습니다.

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