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Basing on the developed methodology for data transfer between the ProCAST and Deform-3D software products, which allows exporting geometry, temperature, residual stresses and microstructure of the casting, it is simulated semi-continuous casting of ingots from aluminum alloy 5182 into a direct chill mold and their following hot rolling in a reversing rolling stand to with aim to study microstructure the evolution.

The Gleeble-3800 unit was used to simulate physically the upsetting of cast and hot rolled semi-finished products from aluminum-lithium alloy V-1461 over the temperature range of 400-460°C and the strain rates of 1-60 s-1. Following texture analysis of upset samples showed the most typical preferred crystallographic orientations and its formation features depending on the temperature-strain rate schedules. The formation of recrystallization type orientations at a strain rate of 60 s-1 is a distinctive feature of the cast samples’ behavior during deformation. In general, the established regularities of texture formation allow to produce a hot-rolled semi-finished products from V-1461 alloy with a given structure’s crystallography in compliance with requirements for blank’s forming and product’s operation.

The paper presents the results of studies on the availability and resistance to brittle fracture of perspective austenitic chromium-nickel-manganese cryogenic steels, depending on the concentration and ratio of the nitrogen and vanadium content. The optimum content of these elements in deformed steels determined, the results of the studies and recommendations on the doping system are confirmed by the results of full-scale tests of low-temperature equipment under internal pressure in liquid nitrogen.

Machine-building enterprises implement the methods of operative transition from one nomenclature of production to another for preservation of competitiveness. The strategy of scientific and technological development of Russian Federation reflects this aspect in the form of one of the priorities: digitalization. One of the most time-consuming processes is the reconfiguration of automatic mass production lines. These lines consist of a number of working positions. The relation between units in mass production is rigid and inter-operational reserves are absent. Stopping one unit is equivalent to stopping the whole line. Therefore, the task of the time estimation of line's operability of this type is relevant. The task is complex and requires consideration of many factors. This article presents a constructive scheme for reliability. The calculation of work and reliability indicators are carried out. The calculation of the reliability of positions with rigid inter-aggregate relation made it possible to obtain reliability indicators for the second line of development of recomposed work positions with automatic change of nodes. In this case, the rigid relation is not violated. In this calculation the probability of failure due to the simplicity the proposed nodes design was not taken into account.

In this article the influence of the measurement system, such as material of the sensor electrodes, their location and their contact area with the combustion zone and also the characteristics of the electric field on the character of the flame's electrical conductivity signal are considered. The impact of various engine performance parameters on the electrical conductivity of the flame was evaluated and the interrelation of the electrical conductivity characteristics with propagation conditions of the flame front in the sensors' location area is shown. The influence of the fuel composition on the propagation conditions of the flame front and on its electrical conductivity is shown. Critical analysis of problems and questions of using the flame conductivity measurement system for the combustion process diagnostics in an ICE with spark ignition is carried out.

The numerical surface characterization makes it possible to compare two different machining technologies. Ultrasonic is one of the actual additional physical effects imposed during the processing. The article presents a comparison of surface topography after burnishing processing with and without ultrasonic. Workpieces made of hardened steel, ultrasonic frequency 22 kHz. It was discovered that the surface has a plastically deformed ordered structure after processing with ultrasonic vibrations.

High productivity and flexibility with a different range of production type can be achieved by using the recomposed production systems. These systems combine the advantages of aggregate machines and turning centres due to the design features described in this article. The types of nodes and system elements in the compiled and decompiled state are given. Algorithms and schemes for the functioning of recomposed work stand (RWS) in comparison with the working stand of automatic lines (WSAL) were developed. Equation for determining the average time between failures of the RWS is presented. The visualization of the system element and the scheme of the system element - the intermodular element of locating (IEB) was performed. In the conditions of the actual machine-building production, the accuracy of estimating the economic effect requires the use of robust design models implemented not only in the form of algorithms, but also in programs. In the future, it is planned to develop a special software allowing to determine the reliability of the RWS relative to the stand with a rigid interaggregate relation.