| 摘要 |
PURPOSE: To provide grinding wheel dressing (regenerative) during grinding work by forming an electrophoretic type in-process dressing grinding wheel with conductivity and elasticity out of an abrasive grain and a conductive resin matrix. CONSTITUTION: A grinding wheel 10 used for grinding a prescribed work to be ground by an electrophoretic method has a circular grinding surface at one side, and is formed with a plurality of grinding surfaces apart from each other in the peripheral direction, at prescribed angular intervals from the center of the circle. By mixing a resin matrix abrasive including prescribed abrasive grain with carbon fiber of 5μm or less in diameter, a grinding wheel having conductivity and elasticity is obtained. During grinding work, by making the grinding wheel 10 face a work 30 held in grinding fluid 38 where abrasive grains charged with negative potential are dispersed with the grinding wheel 10 serving as an electrode and positive potential applied, abrasive grains charged with negative potential are attracted to the grinding wheel 10. It is thus possible to dress the grinding surface of the grinding wheel with the abrasive grains in addition to grinding work.
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