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송영찬(Y. C. Song),社本 英二(E. Shamoto),森脇 俊道(T. Moriwaki) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
In the present research, a ultra-precision diamond cutting of thermo-plastic materials, polycarbonate (PC) and cyclic olefin polymer (COC), is carried out by applying a method named ultrasonic elliptical vibration cutting developed by the authors. It is experimentally proved that good optical surfaces are obtained by applying the elliptical vibration cutting in cases of machining of flat surfaces and grooves as compared with the conventional diamond cutting. The maximum surface roughness in peak to valley value obtained is less than 60 nm and 20 nm for PC and ZEONEX, respectively.