| 摘要 |
PURPOSE:To create a uniform mirror face of 0.5mum R max or less efficiently by combining the action of removing the liquation of metal of an anode type metal workpiece through electrolytic process, with a mechanical abrasive action by abrasive grains. CONSTITUTION:Using an electrode tool and allowing a certain current to flow between a cathode electrode 10 and an anode metal workpiece 14, a polishing operation is carried out by rotating the electrode tool while moving either the electrode tool or the metal workpiece. When the grain size of the used abrasive material is #200-400-grit, the relationship among the relative travel speed V [mm./min] between the electrode tool being fed at a constant speed and the metal workpiece 14, the number of revolution N[rpm] of the electrode tool, and the diameter D[mm.] of the electrode tool, is determined to be in the range of V/(DN) <0.20, thereby creating a mirror face of 0.5mum R max or less. |
