An analytical method to select spindle speed variation parameters for chatter suppression in NC machining

Regenerative chatter vibrations may result in shortened tool life and poor surface finish, and hence should be avoided in practice. Since the Spindle Speed Variation (SSV) method has been certified as a feasible and effective way, the issue of speed variation parameters selection has yet to be solved. Based on the discussions of energy accumulation process in chatter and in vari-speed cutting, an analytical method was proposed to select spindle speed variation parameters. The variation of the phase delay between the inner and the outer modulations was regarded as an important argument that reflects the energy accumulation process. Two phase delay related coefficients were proposed for analyzing the mean energy accumulation process and regional energy accumulation enhancement. The importance of spindle acceleration for chatter suppression was also explained. The phase delay based analytical method was verified by numerical simulation and turning experiments.

[1]  Ibrahim N. Tansel,et al.  Transformations in machining. Part 2. Evaluation of machining quality and detection of chatter in turning by using s-transformation , 2006 .

[2]  Richard E. DeVor,et al.  An Investigation of Variable Spindle Speed Face Milling for Tool-Work Structures With Complex Dynamics, Part 2: Physical Explanation , 1997 .

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

[4]  S. Yaldiz,et al.  Linear analysis of chatter vibration and stability for orthogonal cutting in turning , 2011 .

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

[6]  Liu Peng,et al.  Simulation and Experimental Research on Chatter Suppression Using Chaotic Spindle Speed Variation , 2011 .

[7]  Yusuf Altintas,et al.  Analytical Prediction of Stability Lobes in Milling , 1995 .

[8]  Yusuf Altintas,et al.  Analytical Stability Prediction and Design of Variable Pitch Cutters , 1998, Manufacturing Science and Engineering.

[9]  Liu Guo.  The Method of Thermal-error Compensation Embedded in CNC Based on Bus , 2011 .

[10]  Soo Hun Lee,et al.  Programming spindle speed variation for machine tool chatter suppression , 2003 .

[11]  Qi Bao-yun.  Present Development of the Suppression of Cutting Chatter with Varying Spindle Speed , 2009 .

[12]  Fathy Ismail,et al.  Analytical stability lobes including nonlinear process damping effect on machining chatter , 2011 .

[13]  G. Stépán,et al.  Stability of the milling process , 2000 .

[14]  Yusuf Altintas,et al.  Chatter Stability in Turning and Milling with in Process Identified Process Damping , 2010 .

[15]  Alpay Yilmaz,et al.  Machine-Tool Chatter Suppression by Multi-Level Random Spindle Speed Variation , 1999, Manufacturing Science and Engineering.

[16]  Gilles Dessein,et al.  On the stability of high-speed milling with spindle speed variation , 2010 .

[17]  Keith Ridgway,et al.  Modelling of the stability of variable helix end mills , 2007 .

[18]  Giacomo Bianchi,et al.  Spindle speed variation in turning: technological effectiveness and applicability to real industrial cases , 2012 .

[19]  T. Hoshi,et al.  Active Suppression of Chatter by Programed Variation of Spindle Speed , 1975 .

[20]  M. Movahhedy,et al.  Spindle speed variation and adaptive force regulation to suppress regenerative chatter in the turning process , 2010 .

[21]  Krzysztof J. Kaliński,et al.  Chatter vibration surveillance by the optimal-linear spindle speed control , 2011 .