The influence of additives in the base electrolyte, operating voltage and temperature of the electrolyte on the quality of the process of electrolyte-plasma polishing of parts manufactured by selective laser sintering from a metal powder composition of aluminum alloy grade VAS1 was studied. Electrolyte-plasma polishing of a structurally similar sample of a «bracket» type part was carried out. A technology has been developed for electrolyte-plasma polishing of parts manufactured by the selective laser sintering method from metal powder composition aluminum alloy grade VAS1.

The article presents the results of a study of the relationship between the microstructure of V95och alloy ingots after homogenization annealing in single- and two-stage modes with the parameters of technological plasticity in the temperature range of 350–450 °C. There has been stablished the dependence from the homogenization mode of the structure and properties of sheets with a thickness of more than 6 mm made of V95och alloy, aged in a new experimental mode and a serial aging mode T2. We selected the modes of homogenization annealing and aging that ensure achievement of the highest level of service characteristics of sheets.

In present work the study of technology particularities of high-strength titanium alloy rolling sheets VT23 under conditions of the National Research Center «Kurchatov Institute» – VIAM. Computer modeling in a special software package was used to develop the alloy rolling regimes. Samples of the VT23 alloy were rolled at different temperatures, as a result, optimal regimes of hot and warm pressure treatment were obtained. The mechanical properties and structure of the obtained sheets were analyzed, which satisfy the required values.

Polymer composite materials are gradually replacing metals, including in such important structures as an aircraft wing or a fuselage. One of the technological stages in the manufacture of blanks for future parts is the process of laying out the prepreg on the tooling. When laying out, the stickiness of the prepreg plays an important role. The stickiness of the prepreg to the substrate should be such that it does not separate from it during transportation and is easily separated when moving onto the tooling. An analysis of the stickiness level depending on temperature, compaction force, and the speed of separation from the substrate is given in this article.

Tests of details of airplanes of Sukhoi Design Bureau are executed. Details are made of prepregs of antifriction material and constructive organoplastiсs. Efficiency of antifriction material and constructional organoplastiсs for raising resistance to antifriction loss and for increasing resource of moving elements of an airplane mechanization, as well as fixed parts, which are in contact, are shown. The possibility of production of mechanization elements of an airplane by means of the co-forming prepregs of antifriction and constructive organoplastiсs has been proved.

In the article has been studied dependence of properties of consolidated plates of carbon fiber reinforced thermoplastic based on polyetheretherketone and woven carbon filler on the technological parameters of manufacture: pressure and temperature of pressing, time and cooling rate under pressure, as well as the melt flow rate of polyetheretherketone at a given temperature. The influence of technological molding parameters on the level of consolidation of carbon fiber reinforced thermoplastic plates was assessed using non-destructive testing methods and by determination of their mechanical properties.

The first part of the review considers the main types of preceramic organosilicon polymers and the types of their polymer derived ceramics formed during pyrolysis. An analysis of scientific-technical literature and patent sources of information on methods of synthesis, chemical modification, physico-chemical properties, main manufacturers and areas of application of organosilicon polymers is carried out. The main structural factors of preceramic polymers are described, which make it possible to vary the entire complex of physico-chemical properties of a ceramic material in a wide range.

Comparative tests of the resistance of fiberglass VPS-53/T-25 to aging were conducted during exposure in natural conditions of moderately warm and moderate climate for 3 and 6 months and to simulating effects in two modes of laboratory accelerated tests. It was found that during 6 months of exposure the strength of fiberglass decreased by 7 %, while the moisture diffusion coefficient increased by 60 and 120 % accordingly. The prospects of using Fick and Langmuir models for comparing the effects of composite materials aging during tests in natural and laboratory conditions were shown.

The article provides an analysis of domestic and foreign methods of mechanical testing of structural aviation composite materials and coatings on a slice. The types of cross-section fittings and their main differences are presented. The development of testing methods by instrumental indentation and scratching (sclerometry) is shown, in which destruction occurs by cutting the material with an indenter. A typical slice diagram in the coordinates «load‒displacement of the punch», diagrams of embedding and scratching with indentors, photographs of scratches without destruction and with traces of destruction on the deformable surface are presented.