(Видавництво Львівської політехніки, 2022-02-22) Stupnytskyy, Vadym; Dragašius, Egidijus; Baskutis, Saulius; Xianning, She; Lviv Polytechnic National University; Kaunas University of Technology
The formation of the microtopography of the machined surface is one of the most
critical factors in ensuring the effective operating properties of the product. These are indicators such
as wear resistance, fatigue strength, provision of friction parameters of moving joints, etc. The most
important reason for the formation of microroughness is vibration in the technological surface of the
machine-tool-tool-tool-workpiece. This article is devoted to describing a new method of modelling
the dynamic processes of machining. The peculiarity of this technique is using the results of
rheological modelling (DEFORM). In addition, the consideration of regenerative vibrations of the
tool is the difference of the described model. Regenerative oscillations arise due to surface
roughness, which will be processed as a result of the previous technological stage of mechanical
treatment. The mathematical model and the research results are described in the article.
Recommendations for reducing oscillations are given.
