Analysis of the machining stability in milling thin-walled plate

The thin-walled plate parts are widely used in the aeronautical industry. Research on the machining stability in end milling of thin-walled plate is of great significance to improve the materials remove rates and optimize milling parameters. Analyzing the influence of milling parameters on the milling stability is conducive to choosing appropriate cutter and milling machine in actual milling. In this study, statistical variances of the dynamic displacements are employed as a chatter detection criterion to acquire the stability lobe diagram. The milling experiment results show that the obtained stability lobe diagram can predict the stability domain well. Based on this stability theory, the influences of modal parameters and tooth number on the machining stability are analyzed systematically by simulation, which is significant for choosing an appropriate cutting condition.