精密工学会誌 = Journal of the Japan Society for Precision Engineering
巻
61
号
11
ページ
1555 - 1559
発行年
1995-01-01
ISSN
0912-0289
NCID
AN1003250X
DOI
10.2493/jjspe.61.1555
出版者
精密工学会 = The Japan Society for Precision Engineering
抄録
A new type of field-assisted fine polishing method for brittle materials has been proposed, which is developed for applying to the polishing on NC grinding machine without the vessel for polishing compound. In this method, the non-contact type polishing is realized with fluid grinding wheel which is covered with thick magnetic fluid film holding the abrasive grain. In this report, the surface polishing experiments are conducted on silicon wafers and the polishing characteristics are examined. The following results are obtained : (1) When the clearance between the polisher and the work surface exceeds the definite value, the polishing rate decreases extremely. (2) The use of water based magnetic fluid yields lower polishing rate but smoother surface in comparison with kerosene based magnetic fluid. (3) The surface roughness of polished surface basically depends on grain size and the roughness of the order of nanometers is obtained with fine abrasive grain.