Study on lapping process of diamond cutting tool

Based on the regression analysis of tests, the comprehensive experimental model of the cutting edge radius was presented in lapping diamond cutting tools by using the (110) surface as the rake face and the (100) surface as the flank face respectively. The model can be used to predict the cutting edge radius in lapping process and to calculate the parameters corresponding to the special edge radius. The influence of each factor on the cutting edge radius was compared by the order of magnitude of regression coefficient. The relationships between the lapping orientation, velocity, pressure, grit size and the cutting edge radius were presented. The influence factors of the lapping orientation, velocity, pressure and the grit size on the cutting edge radius are 0.282, 0.082, 0.121 and 0.515, respectively. By analyzing the effect of single factor, the influences curves of lapping orientation γ, lapping velocity v, lapping pressure P and grit size S on the cutting edge radius were presented. And the optimal parameters by which the minimum cutting edge radius can be achieved theoretically were calculated by using the multianalysis method.