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.

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The paper presents an analysis of the methods of surface hardening of parts. The authors experimentally worked out and determined the technology of combined hardening of parts of friction pairs of hydraulic pneumatic units, which allows increasing the efficiency and reliability of the units. In order to increase the life and reliability of precision friction pairs, the production feasibility of combining spark alloying and diamond smoothing has been substantiated. Technological and software for the formation of regular micro reliefs, surface reinforcement with combined processing are proposed.

Article explains manufacturing capability of titanium parts reliability enhancement and life cycle enhancement by electrospark deposition using low energy discharges. Carbon electrodes used to form functional properties of parts surface layer. Alloyed carbooxide zone consist of highly dispersed structure (with particles of titanium carbide, titanium oxide, graphite), with 3-10 micron thick, and high hardness antifrictionality. Alloyed layer contain ordered phase Ti8C5, TiC, and the structure of Ti6C3,75. Parts dimensions almost do not changed after electrospark deposition with carbon electrodes. Subsequent diamond burnishing decrease friction coefficient and surface roughness. Fatigue resistance increased after healing of defects and microcracks. Local carbooxidation and burnishing used to increase wear resistance of titanium alloys.