02. Skryabin V.A. Features of Machining Rotor Shafts of Diesel Engine Turbochargers with a Multilayer-Coated Tool

DOI: 10.15507/2658-4123.031.202104.518-529

Features of Machining Rotor Shafts of Diesel Engine Turbochargers with a Multilayer-Coated Tool

Vladimir A. Skryabin
Professor of the Chair of Technology and Equipment in Mechanical Engineering, Penza State University (40 Krasnaya St., Penza 440026, Russian Federation), Dr.Sci. (Engr.), ORCID: https://orcid.org/0000-0001-7156-9198, Researcher ID: R-2385-2018, This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract
Introduction. The paper presents the results of experimental studies of power parameters when hard alloy steels are machined with tools, the cutting units of which have multilayer hard, heat-resistant and wear-resistant coatings. The obtained data will make it possible to optimize machining hard-to-machine materials.
Materials and Methods. The aim of the study is to measure the power parameters of turning products and to create experimental formulas of power parameters for different technological modes. For this purpose, a special measuring multicomponent complex was used to estimate the influence of the mode parameters on the change in the cutting force components.
Results. The numerically controlled machine tool was retooled by combining it with a three-component dynamometer and tooling. The cutting unit of the tool was coated with a multi-layer hard, heat-resistant and wear-resistant coating. The tool was equipped with instruments connected to a personal computer for measuring and processing experimental data. According to the results of the study, there have been obtained graphical dependences and empirical formulas, which take into account the influence of the mode parameters on the cutting force components when machining the units of alloy steels of high hardness, heat resistance and wear resistance.
Discussion and Conclusion. The study allowed us to obtain experimental formulas of cutting force components for different mode parameters when machining parts by the tool equipped with cutting plates. The plates are coated with multilayer hard and wear-resistant coatings of titanium carbonitride, aluminum oxide and nickel nitride. The coating increases significantly the hardness, heat and wears resistance of the tool cutting unit and provides quality machining.

Keywords: turning, components of cutting forces, operating parameters, machine tool, modernization

The author declares no conflict of interest.

For citation: Skryabin V.A. Features of Machining Rotor Shafts of Diesel Engine Turbochargers with a Multilayer-Coated Tool. Inzhenernyye tekhnologii i sistemy = Engineering Technologies and Systems. 2021; 31(4):518-529. doi: https://doi.org/10.15507/2658-4123.031.202104.518-529

The author has read and approved the final manuscript.

Submitted 17.03.2021; approved after reviewing 20.05.2021;
accepted for publication 03.06.2021

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