Ukrainian Journal of Mechanical Engineering and Materials Science

Permanent URI for this communityhttps://ena.lpnu.ua/handle/ntb/31565

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    Investigation of the carbide-tipped tool wear hardened by method of aerodynamic impact
    (Lviv Politechnic Publishing House, 2017-10-19) Zhygalov, Anatoly; Stupnytskyy, Vadym; “Promlizing Corporation”, Belarus; Lviv Polytechnic National University
    Theoretical calculations and experimental studies of the influence of wear on the cutting process and the precision parameters of machining by hard alloys during milling are described in the article. The method of aerodynamic hardening is designed to increase the durability of tools, which are heterogeneous compositions of tungsten carbides, titanium and tantalum with cobalt ligature operating under severe process conditions with varying impact loads. The effect of hardening by the ADH method is achieved due to the influence of sound waves on the structure of hard alloys. The results of imitation studies of the wear process in the DEFORM system are described.
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    Investigation of the influence of machining factors on the workpiece deformation mode in the chip-forming zone by the finite element method
    (Publishing House of Lviv Polytechnic National University, 2016) Stupnytskyy, Vadym
    The results of studies of the impact strength, temperature factors and parameters of cutting tool geometry on the formation of the stress-strain and thermodynamic state of surfaces with different types of engineering materials in the cutting process are described in the article. Analysis of simulation modeling of power, temperature and deformation parameters is the basis for making of forecasting models of influence of the structure and process parameters on the formation of complex operational properties of the product.