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The contact stiffness between grinding wheels and workpices has been numerically analyzed by applying the theory of Hertzian contact, in which a wheel is considered to be uniform continuous body. It is well known, however, that the grinding wheels are not actually uniform continuous bodies. Consequently, when analyzing the elastic deformations of grinding wheels, the theory of Hertzian contact should not be applied as it is. In this study, in order to clarify the mechanical phenomena of grinding wheels in the contact area with workpieces, a mathematical model of grinding wheels consisting of rigid bodies and spring elements was proposed. By utilizing this model, elastic deformations of the grinding wheels in the contact area with workpieces are considered. And analyzed results are confirmed experimentally. From these results, it is clarified that the elastic deformations of grinding wheels in the contact area with workpieces can be analyzed quantitatively by means of the proposed model.

Study on Contact Stiffness of Resinoid Grinding Wheels by Means of the Grinding Wheels Model