Milling Parameters Optimization of MgCa0.8 Alloy Based on Orthogonal Experiment

To study the influence of cutting parameters on the surface quality of the MgCa0.8 alloy in milling with the coated carbide tool, orthogonal experiment table of three factors and four levels was designed, which considered the spindle speed, depth of cut and feed per tooth as the main factors. The optimal level and the optimal combination of cutting parameters were obtained by range analysis method. Finally, Variance Analysis Method and F-test were used to analyze the significance of the cutting parameters on both the surface roughness and the cutting force Fx. We verified that the change of the feed per tooth has the relatively most significant effect on the surface roughness of the part and the depth of cut has the relatively most important effect on the cutting force Fx.