Thermal aspects of grinding : the effect of heat generation at the shear planes

Summary The model of heat transfer in the grinding zone which had been previously developed by the author has been modified to account for the fact that some of the grinding energy is generated at the shear planes. Examples are given to evaluate how much error was incurred in making the earlier simplification that all the heat is generated at the wear flat areas. For grinding with aluminum oxide wheels, it is found that the error is typically not huge, but may be significant, depending on the grinding conditions. For grinding with CBN wheels, however, the error is very important.