Machine-Tool Chatter Suppression by Multi-Level Random Spindle Speed Variation

This paper presents a new method for varying the spindle speed to suppress chatter in machining. The spindle speed is varied in a pseudo-random fashion within the bandwidth of the spindle system. Both implementation issues and spindle system responses to such signals are investigated. A new method to analyze the stability of machining systems with varying spindle speed is also introduced. The effectiveness and advantages of the random spindle speed variation in chatter suppression is verified using numerical simulations and experiments.

[1]  Tsu-Chin Tsao,et al.  A new approach to stability analysis of variable speed machining systems , 1993 .

[2]  Makoto Sato,et al.  Study on Practical Application of Fluctuating Speed Cutting for Regenerative Chatter Control , 1978 .

[3]  Toshio Sata,et al.  Stability Analysis of Cutting under Varying Spindle Speed , 1977 .

[4]  Richard E. DeVor,et al.  An Investigation of Variable Spindle Speed Face Milling for Tool-Work Structures With Complex Dynamics, Part 1: Simulation Results , 1997 .

[5]  Haiyan Henry Zhang,et al.  Chatter modeling, analysis and control for CNC machining systems. , 1996 .

[6]  S. Smith,et al.  Stabilizing chatter by automatic spindle speed regulation , 1992 .

[7]  Philip K. Chan,et al.  In-process detection and suppression of chatter in milling , 1992 .

[8]  Mircea Grigoriu,et al.  Control of time delay linear systems with Gaussian white noise , 1997 .

[9]  Fathy Ismail,et al.  Chatter suppression by adaptive speed modulation , 1997 .

[10]  S. M. Wu,et al.  Computer Design of a Vibration-Free Face-Milling Cutter , 1975 .

[11]  J. Slavíček,et al.  The Effect of Irregular Tooth Pitch on Stability of Milling , 1965 .

[12]  P. Vanherck,et al.  INCREASING MILLING MACHINE PRODUCTIVITY BY USE OF CUTTERS WITH NON-CONSTANT CUTTING-EDGE PITCH , 1968 .

[13]  Shih-Chieh Lin,et al.  The Effects of Variable Speed Cutting on Vibration Control in Face Milling , 1990 .

[14]  S. Smith,et al.  Use of Audio Signals for Chatter Detection and Control , 1992 .