Research on the Milling Process Damping and Stability Considering Additional Vibration

Chatter is a critical factor that impacts both the efficiency and quality of the milling, and the process damping can suppress its occurrence. Process damping is caused by the interference between the machined surface and the flank face of the tool, which is manifested as an effect on the damping term of the system. In this paper, a method of applying additional vibration for workpiece is proposed, and the influence of additional vibration on process damping and milling stability boundary is studied. The calculation and simulation show that the proposed chatter suppression method is reasonable, and applying appropriate additional vibration can make the milling stability boundary higher and improve the machining efficiency.