Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Modeling of Various Tool Influence Functions in Computer Controlled Optical Surfacing

컴퓨터 제어를 통한 광학 가공에서의 다양한 툴 영향 함수의 모델링

  • Kim, Gi-Chul (Department of Mechanical Engineering, Hanyang University) ;
  • Ghim, Young-Sik (Center for Space Optics, Korea Research Institute of Standard and Science) ;
  • Rhee, Hyug-Gyo (Center for Space Optics, Korea Research Institute of Standard and Science) ;
  • Kim, Hak-Sung (Department of Mechanical Engineering, Hanyang University) ;
  • Yang, Ho-Soon (Center for Space Optics, Korea Research Institute of Standard and Science) ;
  • Lee, Yun-Woo (Center for Space Optics, Korea Research Institute of Standard and Science)
  • 김기철 (한양대학교 기계공학과) ;
  • 김영식 (한국표준과학연구원 우주광학센터) ;
  • 이혁교 (한국표준과학연구원 우주광학센터) ;
  • 김학성 (한양대학교 기계공학과) ;
  • 양호순 (한국표준과학연구원 우주광학센터) ;
  • 이윤우 (한국표준과학연구원 우주광학센터)
  • Received : 2015.06.09
  • Accepted : 2015.10.29
  • Published : 2016.03.01
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Abstract

The computer controlled optical surfacing (CCOS) technique provides superior fabrication performance for optical mirrors when compared to the conventional method, which relies heavily on the skill of the optician. The CCOS technique provides improvements in terms of mass production, low cost, and short polishing time, and are achieved by estimating and controlling the moving speed of the tool and toolpath through a numerical analysis of the tool influence function (TIF). Hence, the exact estimation of various TIFs is critical for high convergence rates and high form accuracy in the CCOS process. In this paper, we suggest a new model for TIFs, which can be applied for various tool shapes, different velocity distributions, and non-uniform tool pressure distributions. Our proposed TIFs were also verified by comparisons with experimental results. We anticipate that these new TIFs will have a major role in improving the form accuracy and shortening the polishing time by increasing the accuracy of the material removal rate.

Keywords

References

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