Surfaces For High Speed ​​milling Dynamic Analysis And Simulation Studies

Considering the inertial force of high speed milling, the elemental force componentsare established based on the cutting force model of ball end milling, and the cutting forcemodel of ball end milling which is used to mill the deep contour with considering springdeflection is established. In view of the feature of ball end milling process, the model ofaccurate cutting area is presented which considers the advance angle of cutting in and thelag angle of cutting off with considering the curvature of machined surface.Considering the feedback of dynamic deflection of the cutter and vibration mark onthe milled surface on the transient chip thickness, the dynamic model of the regenerativemilling force is constructed based on the cutting force model of ball end milling which isused to mill the deep contour with considering spring deflection. Carrying on modelanalyze through ANSYS software to milling cutter, study the natural frequency of ball endmilling,and provide some data for the cutter effective cross section coefficient.The milling cutter's vibration displacement in the milling process is one of the mainelements which influence the accuracy of the work piece. The MATLAB/GUI is used tothe dynamic model of the regenerative milling force and the model of vibrationdisplacement; we can research the influence of the high speed surface machining processparameters for the vibration displacement and the regenerative dynamic milling force ofhigh speed surface machining. In the high speed milling experiment research, a series ofexperiment shave have been carried out to get milling force data. By comparison with thepredicted milling force, it is shown that the simulation errors is small, which proves thecorrectness of the model.The vibration displacement of the high speed milling based on the dynamic model ofthe regenerative milling force and the model of vibration displacement has been researched,then the optimized parameter choices has been offered, and these establish the basis forchoosing the tool path of high-speed cutting, these are advantageous in strengthening thecutting tool life, and enhance the high speed surface machining process quality.