STABILITY ANALYSIS OF THE MAIN SPINDLE VIBRATIONS IN TRANSVERSAL DIRECTION AT CNC LATHE
Keywords:Stability analysis, vibration, main spindle, CNC lathe, Mihailov criterion.
The paper presents an original method for stability analysis of the main spindle variations in transversal direction at CNC lathe, which by means of the Mihailov criterion and adequate software packages, establishes the dynamic instability character due to the specific processing conditions and to the grinding regime parameters. This creates the premises for rational design of the turning process, as well as for the structural design of the turning tool.
Abele, E., Altintas, Y. & Brecher, C., 2010. Machine tool spindles. CIRP Annals Manufacturing Technology, 59(781-802).
He, X., 2015. Recent development in reliability analysis of NC machine tools. Int J Adv Manuf Technol.
Jorgensen, B. & Shin, Y., 1996. Dynamics of Machine Tool Spindle/Bearing Systems Under Thermal Growth, Journal of tribology. 119(4), 875-882 (Oct 01, 1997), 119(4), p. 8.
Mobley, R. K., 2000. Vibration Fundamentas. s.l.:Butterworth-Heinemann.
Weck, M. & Koch, A., 1993. Spindle-Bearing systems for high speed aplications in machine tools.
Quintana, G., de Ciurana, J. & Campa, F., 2009. Chapter 3: Machine tool Spindles. In: Machine tools for High Performance Machining.López de Lacalle, L. N.; Lamikiz, A. s.l.:Springer.
Popescu, D., Bolcu, D., Rizescu, S. – Establishment of the movement equations which define the vibrations of the spindle at internal grinding, The 10th DAAAM International Symposium, Vienna, Austria, 21-23 October 1999, pp. 445-447.
Popescu, D. – Theoretical and experimental contributions regarding improving the processing precision at internal grinding machines, PhD Thesis, Univ. P.R., Bucharest, 1999, pp. 87-90.
Popescu, D., Ghionea, A. – Analysis of the vibration of the main spindle in transversal direction at internal grinding, Acta Univesitas CIBINIENSIS Vol. XXXVII, pp. 147-151.