Research on Modeling of Variable Milling Force Coefficient for Ruled Surface in Flank Milling Process

While considering the ruled surface geometry characteristics and its effect on milling force, the expression of variable start and exit radial immersion angles and axial cutter position are proposed through the analysis of contact area between cutter and workpiece in the flank milling process. The variable milling force coefficient model is established, and its result can be variable with the change of the curvature radius. The experimental analysis and solving results of the model are proposed. At last, the variable milling force coefficient model is verified by a flank milling force simulation result.