On the mechanism and mechanics of wheel loading in grinding

Abstract

Accumulation of chips in the space between grains of grinding wheel, called wheel loading, has detrimental effects in industrial grinding operations, such as wheel life reduction, higher cutting forces and power requirement and variations in tolerance during process. It is also important for process optimization, monitoring, and control. So wheel loading study should be done based on fundamental and applied concept so that required productivity and desired surface integrity can be achieved. This is possible by the fundamental understanding of the grinding wheel loading at microstructural scale and establishing the relationship of grinding characteristics and wheel loading. So the present study investigates, the wheel loading mechanism and its evaluation via new analytical model while grinding Inconel 718 superalloy with CBN grinding wheel, considering workpiece material adhesion on the surface of abrasive grain, cutting parameters, process temperature, wheel structure and material properties. This study provides valuable insights into the grinding wheel loading mechanism and the associated mechanics.