Grinding Wheel life and Criterion

The actual time of the grinding wheel dressing between the two is called the wheel life. Analyzing wheel life, generally based on the phenomenon of post-Face wear produced by visual determination. The main phenomenon: grinding process appears self-excited oscillation, the surface appears regeneration chatter; grinding noise increases; the workpiece surface burn appeared grinding, grinding force a sharp increase or decrease; loss of precision grinding; grinding surface rougher. The phenomenon is mainly due to the high temperature of grinding the workpiece surface roughness and precision and thermal damage due to the degradation caused by self-excited vibration.

Wheel End of life form: the wheel surface passivation - polished state (to increase the grinding force and grinding heat); wheel loading (prone to vibration or noise until burns); grinding wheel contour damage (machining accuracy)