MATHEMATICAL MODEL OF FORMING OF MICRORELIEF OF SHAFT JOURNAL WHILE PROCESSING BY DIAMOND BURNISHING


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Abstract

The performance characteristics of the products are determined considerably by the technology process of their production. Modern machine industry sets the requirements to the parts surfaces operating in the friction conditions and the availability of regular microrelief. This work offers the technology and the mathematical model for calculation of the microrelief of processed surface of shaft journal for the cup-type seal. While studying the cup-type seal – shaft friction couple, the main cauces for its wear were determined.

The authors considered the schemes of applying of regular microrelief using diamond burnishing and the schemes and profilograms of surfaces with obtained grooves systems. The authors classified the microreliefs obtained in the result of vibro-burnishing and determined the dependence of microrelief nature on the processing parameters.

According to the mechanical engineering development trend, the authors proposed the change from one parameter describing requirements to the part’s surface microgeometry to the requirement in the form of regular microrelief availability.

The article shows the results of the mathematical model calculation of the diamond burnishing processing which allows to simulate the relief of processed surface depending on the parameters and processing conditions.

The authors obtained the results of simulation of processed part during diamond burnishing with mode superposition. Comparing the simulation results with the theoretical results, it is possible to estimate the adequacy of mathematical model calculations.

The authors made the conclusions on the possibility of using a mathematical model to estimate the obtained microrelief on the part surface after the burnishing with the mode superposition. The results of theoretical research which are used as the base for mathematical model of the burnishing process with the mode superposition correlate with those obtained in reality.

About the authors

Pavel Anatolyevich Melnikov

Togliatti State University, Togliatti

Author for correspondence.
Email: topavel@mail.ru

candidate of technical sciences, Associate Professor

Russian Federation

Anatoly Nikolayevich Pakhomenko

Togliatti State University, Togliatti

Email: pakhomenko@tltsu.ru

candidate of technical sciences, Associate Professor

Russian Federation

Aleksey Aleksandrovich Lukyanov

Togliatti State University, Togliatti

Email: a.lukyanov@tehnomasch.ru

undergraduate student

Russian Federation

References

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