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

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.