Studies the prediction approach of workpiece in face milling deformation.Combining the analytical method and finite element method,a finite element model for 3D milling process is set up considering the primary factors to the workpiece's deformation.An effective algorithm of equivalent load and discrete process is proposed to put the transient cutting force and cutting heat on the finite element model.And through the indirect thermo-mechanical coupled finite element method,the milling process is simulated.T...