Evaluation of the characteristics of diamond grinding wheels at their production and operation stages

Abstract

The evaluation of important characteristics of the diamond-bearing layer of grinding wheels contributes to improving the effectiveness of diamond grinding of hard-to-work materials. This evaluation is carried out by applying 3D simulation methodology utilizing the finite element method. The whole life cycle of diamond composite materials, from development and production to operation, is considered. More specifically, the effect of the number of metal phase inclusions within the diamond grain during sintering is studied. Furthermore, a novel approach for investigating the influence of diamond grain wear during grinding, on the grain, is presented. Models exhibiting the impact of diamond grain orientation are also discussed. Finally, the value of grain embedment in bond is investigated. The proposed methodology makes it possible to determine the contribution of force and thermal factors in deflected mode of the diamond-bearing layer in the sintering of grinding wheel and in grinding operation. The role of such factors as grade of grain and wheel bond, relative orientation, and degree of wear of diamond grains can be evaluated during development, production, and operation of diamond composite materials.