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J. Korean Ceram. Soc. > Volume 49(1); 2012 > Article
Journal of the Korean Ceramic Society 2012;49(1): 90.
doi: https://doi.org/10.4191/kcers.2012.49.1.090
금속기지 세라믹 복합소재의 경면연삭 가공 특성
경남과학기술대학교 기계공학과
Properties of Mirror-surface Grinding for Metal Matrix Ceramic Composites
Tae-Soo Kwak
Department of Mechanical Engineering, Gyeongnam National University of Science and Technology
This study has been focused on properties of mirror surface grinding technology by ELID(Electrolytic In-process Dressing) for metal matrix ceramic composites using in high precision mirror for optics. The experimental studies have been carried out to get mirror surface by grinding for composites, Al-SiC, Al-graphite and Mg-SiC. Grinding process is carried out with varying abrasive mesh type, depth of cut and feed rate using diamond wheel. The machining result of the surface roughness and condition of ground surface, have been analyzed by use of surface roughness tester and SEM measurement system. ELID grinding technology could be applied successfully for the mirror-surface manufacturing processes in spite of ductility of metal matrix material. As the results of experiments, surface roughness of Al-SiC(45 wt%) has been the most superior in these experimental work-pieces as 0.021 ${mu}m$ Ra.
Key words: Metal matrix ceramic composites, Grinding, Surface roughness, Al-SiC, Al-graphite, Mg-SiC
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