Glassy Carbon의 초정밀 가공

Ultraprecision Machining of Glassy Carbon

  • 황연 (한국광기술원 초정밀광학연구센터) ;
  • 이현성 (전남대학교 공과대학원 전기공학과) ;
  • 김혜정 (한국광기술원 초정밀광학연구센터) ;
  • 김정호 (한국광기술원 초정밀광학연구센터)
  • 발행 : 2012.06.30

초록

Glassy carbon is widely used for high temperature melting process such as quartz due to its thermal stability. For utilizing Classy Carbon to glass mold press(GMP) optical lens, brittleness of Glassy Carbon is main obstacle of ultraprecision machining. Thus authors investigated ductile machining of Glassy Carbon adopting turning and grinding process respectively. From the experiments, ultraprecision turning surfaces resulted brittle crack in all machining conditions and ultraprecision grinding surfaces showed semi-ductile mode in small undeformed chip thickness conditions.

키워드

참고문헌

  1. http://en.wikipedia.org/wiki/Glassy_carbon
  2. Y. Hwang, et. al., "Ultraprecision grinidng of glassy carbon core for mold press lens", Journal of the Korean Society of Precision Engineering, Vol. 29 No. 3, pp. 261-265, 2012.
  3. T. G. Bifano, T. A. Dow, R. O. Scattergood, "Ductile-Regime Grinding: A New Technology for Machining Brittle Materials", Journal of Engineering for Industry Transactions of the ASME, Vol. 113, No. 2, pp. 184-189, 1991.
  4. Jiwang Yan, Katsuo Syoji, Tsunemoto Kuriyagawa, Hirofumi Suzuki, "Ductile regime turning at large tool feed", Journal of Materials Processing Technology, Vol. 121, No. 2-3, pp. 363-372, 2002.
  5. T. Kuriyagawa, N. Yoshihara, M. Saeki, "Nano-Topography Characterization of Axisymmetrical Aspherical Ground Surfaces", Key Engineering Materials, Vol. 238-239, pp. 125-130, 2003.
  6. Brinksmeier, E., Mutlugunes, Y., Klocke, F., Aurich, J. C., Shore, P. and Ohmori, H., "Ultra-precision grinding," CIRP Annals - Manufacturing Technology, Vol. 59, No. 2, pp. 652-671, 2010.