Suppression of self-excited vibration by the spindle speed variation method

A method for the analysis of the influence of spindle speed variation on the course of self-excited vibration has been presented. Thisanalysis is based on the influence of self-frequency of self-excited vibration on the stability of machining, and dependence of this frequency on workpiece rotational speed. The influence of the spindle speed variation frequency and amplitude on chatter has been investigated.