ABRASIVE DISC

摘要

An abrasive disc for grinding a materialographic sample, the abrasive disc comprising a grinding layer having an exposed grinding surface to be brought into contact with a materialographic sample to be ground; and a base layer having a mounting surface opposite the grinding surface for mounting the abrasive disc on a rotatable support member for rotating the disc around an axis projecting through the mounting surface and the grinding surface; the grinding layer comprising abrasive grains disposed in a bonding matrix; wherein the grinding surface includes a plurality of depressed portions having a depths between 5 and 60% of the thickness of the grinding layer