電気泳動現象を利用した半球状極微粒ダイヤモンドホイールの精密成形

概要

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Precision truing and dressing techniques using an electrophoretic phenomenon was newly developed for spherical diamond wheels with fine grains. Truing was carried out by rolling loose abrasives within a contact surface between the wheel and anode, that was reversely preformed against the spherical shape. Also, soft dressing was carried out by bringing the wheel into contact with a gelled film on the anode. An electrophoretic phenomenon was employed to generate a gelled film on the anode by attracting loose abrasives and high-molecular weight electrolyte in the polishing fluid. The truing test clearly indicated that both surface roughness and sphericity of under 1 μm could be achieved within 5 minutes, in the case where surface roughness of under 5 μm was preliminarily created by pretruing using a metal bonded wheel. It was also established by the dressing test that the gelled film on the anode behaved like a soft polisher, so that a sufficient chip pocket, without any residual damage on the bond surface, could be derived.
社団法人日本機械学会の論文
1998-03-25