Determining a rational scheme of machining of gas turbine engine essential parts in magnetorheological environments by the method of expert assessment

Abstract

The paper examines the basic schemes, features and advantages of magnetic abrasive machining. In this work we provide information on working environments for magnetic abrasive machining, compositions of ferro-abrasive powders and roughness of the surfaces achieved by their application; the process of forming the working layer is also analyzed. A classification of magnetic abrasive machining schemes according to the type of the magnetic inductor used, as well as their advantages and disadvantages are discussed. It is shown that the basic scheme of magnetic abrasive machining, the kind and dispersion of the abrasive medium, are assigned depending on the specific machining conditions and the requirements for the surface layer condition, whereas the choice of the type of the magnetic inductor is not so obvious, since each of the types has its advantages and disadvantages. An expert assessment procedure in choosing an acceptable magnetic-inductor scheme from a number of alternatives for use in magnetic abrasive machining is presented. The method of expert assessment was tested drawing on the example of the work of a group of experts formed by representatives of science and industry. It is shown that the direct-current electromagnetic inductor scheme is a rational scheme of magnetic abrasive machining according to the type of inductor used. This is due to the simplicity of process control and the expansion of technological capabilities, applicability for a wide range of problems solved by magnetic abrasive machining. Permanent-magnet magnetic abrasive schemes can be considered as an alternative to permanent-magnet ones.

About the authors

A. G. Boytsov

Moscow Aviation Institute (National Research University)

Author for correspondence.
Email: agboytsov@mail.ru

Doctor of Science (Engineering)
Head of Department

Russian Federation

S. V. Kurilovich

Moscow Aviation Institute (National Research University)

Email: gdr1111@yandex.ru

Postgraduate Student

Russian Federation

V. V. Kuritsyna

Moscow Aviation Institute (National Research University)

Email: kuritzynav@mail.ru

Candidate of Science (Engineering), Associate Professor

Russian Federation

M. V. Siluyanova

Moscow Aviation Institute (National Research University)

Email: dc2mati@yandex.ru

Doctor of Science (Engineering), Professor

Russian Federation

References

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