PROSPECTS FOR THE USE OF A DRY FRICTION DAMPER IN METAL-CUTTING TOOLS
DOI:
https://doi.org/10.34185/1991-7848.itmm.2026.01.049Keywords:
self-oscillation, structural damping, surface roughness detailsAbstract
This paper presents the development and investigation of a mathematical model of a four-mass self-oscillating system of a metal-cutting machine tool. The model considers the interaction of the main elements of the technological system, namely the carriage, cutting tool, workpiece, and spindle, as well as the influence of cutting forces on the process dynamics. The effect of dry friction in the joints of the tool structural elements on vibration amplitude and system stability is analyzed. It is established that the parameters of the frictional connection significantly affect the level of self-oscillations and can be effectively used for their suppression. Numerical simulation was performed using the Runge–Kutta method in Matlab. The results show that an optimal friction force reduces vibration amplitude, improves machining quality, and increases tool durability. The findings can be applied in the design of anti-vibration cutting tools.
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