Abstract
Peripheral grinding force influences the accuracy of carbide inserts to a considerable extent, thereby making the study of grinding force crucial to improve the process of peripheral grinding. To predict the peripheral grinding force in the grinding process, a dynamic grinding force model based on the grain element method is proposed in this paper. The proposed model divides a grain into several grain elements and the cross-section of each element is assumed to be a rectangle. The actual cutting depth, including the influence of the other grain paths of each element, is calculated to simulate the actual cross-section cutting area and the wear flat area. Thus, the interference region between grain paths is included in this model. By combining the single grain grinding force model, the cross-section cutting area and the wear flat area, the peripheral grinding force can be simulated. Because the grinding force is simulated using the grinding wheel topography and the grinding kinematic directly, the influence of the workpiece residual is included. Therefore, the simulated grinding force is more accurate than the force predicted with the total material removal rate.
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