DETERMINING THE IMPACT OF STRUCTURAL FRICTION PARAMETERS IN THE BODY OF AN ASSEMBLED CUTTER ON THE DAMPING OF ITS AMPLITUDE AND SELF-OSCILLATIONS

https://doi.org/10.23939/ujmems2025.01.054
Received: January 25, 2025
Accepted: February 26, 2025

Y. Novitskyi, A. Slipchuk, and M. Novitskyi, “Determining the impact of structural friction parameters in the body of an assembled cutter on the damping of its amplitude and self-oscillations,” Ukrainian Journal of Mechanical Engineering and Materials Science, vol. 11, no. 1, pp. 54–60, 2025, doi: https://doi.org/10.23939/ujmems2025.01.054.

1
Lviv Polytechnic National University
2
Lviv Polytechnic National University, Ukraine
3
Lviv Polytechnic National University

The paper examines the potential use of dry friction in designing metal-cutting tools to dampen vibration energy. A mathematical model of the self-oscillating system "machine-fixture-tool-workpiece" has been developed and analyzed, considering structural friction within the assembly of the cutting tool. The study has investigated structural friction's impact on the cutter body's self-oscillation amplitude at the cutter tip and the workpiece surface. The paper demonstrates the possibility of effectively reducing the amplitude of self-oscillations in the system through the optimal selection of tool parameters.

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