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Abstract

Mechanical properties of the pipeline samples that had been cut in annular and axial directions were investigated. The methodology of modeling and calculation of the real stress-strain state was described. The stable state during in the deformation process was defined. The results of the experimental researches were used as a test variant during examination of pipe strength.

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Authors and Affiliations

Jerzy Małachowski
Volodymyr Hutsaylyuk
Petr Yukhumets
Roman Dmitryenko
Grigorii Beliaiev
Ihor Prudkii
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Abstract

The article describes how different friction coefficients under certain cutting conditions and parameters affect the formation of the stress-strain and thermal states of the product when titanium alloy machining. A new research methodology is used for the study. Firstly, in the initial data for simulation, each time a different declared coefficient of friction is proposed, and every such task of the cutting process modelling is solved for various cutting parameters. The second stage analyzes how these coefficients influence the stress-strain and thermodynamic state of the workpiece and tool during cutting, as well as the tool wear dynamics. In the third stage of the study, ways for ensuring these analytically-grounded tribological cutting conditions are proposed. The analysis of different wear criteria in the simulation models of titanium alloys cutting is carried out. Experimental studies confirm simulation results.
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Authors and Affiliations

Vadym Stupnytskyy
1
ORCID: ORCID
Xianning She
1
ORCID: ORCID

  1. Lviv Polytechnic National University, Lviv, Ukraine

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