Chatter avoidance method for milling process based on sinusoidal spindle speed variation method: simulation and experimental results

This paper investigates the effectiveness of Sinusoidal Spindle Speed Variation (SSSV) technique as a chatter suppression method in milling process. On this purpose, a twofold study was carried out: on the one hand, a simulation analysis, and on the other, experimental machining. First, a time domain model of the cutting process was modified to include simulation capabilities concerning spindle speed variation. The results obtained by SSSV techniques mainly depend on the relationship between the chatter frequency and the tooth passing frequency. The SSSV-based strategy for chatter avoidance was embedded in a Computer Numerical Control (CNC) to run experimental tests. They were carried out to show the SSSV technique performance, focused on both high and low spindle speeds. To summarise, this technique lifts the asymptotic stability limits mainly at low spindle speeds.