Abstract
Spindle speed variation is a well-known technique to suppress regenerative machine tool vibrations especially for low spindle speeds. Although a lot of research effort was made over the years the technique is not widespread in real turning applications. In this paper, the reasons that can limit the diffusion of the spindle speed variation were investigated. Therefore, the analysis of spindle speed variation strategy was not only focused on its chatter suppression properties but also on some more general technological aspects: the surface quality of the machined components, the cutting edge-spindle bearings load and the thermal overload the electrical spindle motor is subjected to when the speed modulation is used. A time-domain numerical model of the turning process was developed and exploited to support the analysis. A lot of cutting tests were also performed both to validate the numerical model and to evaluate the effect of variable spindle speed on surface quality. Finally, some real industrial applications were analyzed focusing on thermal overload issue of the spindle motor.
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Albertelli, P., Musletti, S., Leonesio, M. et al. Spindle speed variation in turning: technological effectiveness and applicability to real industrial cases. Int J Adv Manuf Technol 62, 59–67 (2012). https://doi.org/10.1007/s00170-011-3790-8
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DOI: https://doi.org/10.1007/s00170-011-3790-8