Which Grinding Wheel Should I Choose? Norton
During grinding, the cutting points on the abrasive grains are worn flat; becoming increasingly blunt. At the same time, the increased friction causes a buildup of heat, which fractures the abrasive grain and exposes new cutting edges or begins to disintegrate the bond bridges that hold the abrasive grains in place. In normal vitrified grinding, the wheel has to be dressed using a dressing