Modeling Wear Process of Electroplated CBN Grinding Wheel

The wear of Cubic Boron Nitride (CBN) grinding wheel directly affects the workpiece surface integrity and tolerances. This paper summarizes a combined experimental-modeling framework for CBN grinding wheel life expectancy utilized in both cylindrical and surface grinding. The presented fatigue type model is based on grit pullout mechanism and the associated state of damage percolation. The unique grit-workpiece interaction process leads to a non-uniform spatial distribution of the grit wear. The life expectancy model can be described as a function of the process parameters, grinding wheel geometry and topology, workpiece material properties, etc. The developed modeling framework will greatly enhance the understanding of electroplated CBN grinding wheel wear mechanism.