在使用平面砂轮、球面凸形砂轮,进行陶瓷圆柱面、内面和平面的磨削时,砂轮和工件应是点或线的接触。故平面磨削时,使用平面砂轮;定压磨削时,使用球面凹形砂轮。图1是将氧化铝系陶瓷用平面砂轮和球面凹形砂轮磨削的情况,即磨粒直径越小,表面光洁度越好。例如,在粒度相同的情况 In the use of flat grinding wheel, spherical convex wheel, the cylindrical surface of the ceramic, the inner surface and the plane grinding, the wheel and the workpiece should be point or line contact. Therefore, the plane grinding, the use of flat grinding wheel; constant pressure grinding, the use of spherical concave wheel. Fig. 1 shows the case of grinding an alumina-based ceramic with a flat grinding wheel and a spherical concave grinding wheel. That is, the smaller the grain diameter is, the better the surface finish is. For example, in the case of the same granularity