Modeling and simulation of three-dimensional stability lobes of milling thin-walled plate

Chatter phenomenon often occurs during peripheral milling of thin-walled plate, which affect the quality of the finished part, the tool life and the spindle life. Therefore, it is necessary to avoid chatter with a suitable choice of cutting condition. Several stability models only emphasize the axial depth for chatter free machining. In this paper, it is shown that the radial depth is the same important for stability. This paper studies the three-dimensional stability of milling the thin-walled plate, and develops a three-dimensional lobes diagram of the spindle speed, the axial depth and the radial depth. Through the three-dimensional lobes, it is possible to choose the appropriate cutting parameters according to the dynamic behavior of the chatter system.