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Ultraprecision Machining of Glassy Carbon  

Hwang, Yeon (한국광기술원 초정밀광학연구센터)
Lee, Hyeon-Sung (전남대학교 공과대학원 전기공학과)
Kim, Hye-Jeong (한국광기술원 초정밀광학연구센터)
Kim, Jeong-Ho (한국광기술원 초정밀광학연구센터)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.11, no.3, 2012 , pp. 19-23 More about this Journal
Abstract
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.
Keywords
Glassy Carbon; Ultraprecision Machining; Ductile Machining; Undeformed Chip Thickness; Glass Mold Press;
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Times Cited By KSCI : 1  (Citation Analysis)
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