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CONSTRUCTIONAL MATERIALS, PHYSICAL METALLURGY

Aulov V. F., Ishkov A. V., Ivanayskiy V. V., Lyalyakin V. P., Krivochurov N. T. — Effects of boron alloying on the structure of welding joints for steel 65G

The article presents the results of studies on the effect of boron additives in a welded bath. It is shown that the introduction of boron promotes the formation of new physical, highly disperse and structured phases in the seam which will undergo a dispersed or zone simplification, inhibit the development of cold cracks. The results of the investigations make it possible to characterize quantitatively and qualitatively the influence of boron on the structure of the welded seam.
Key words: boron, borating, structure, welded seam

TECHNOLOGIES AND EQUIPMENT OF MECHANICAL, PHYSICOTECHNICAL PROCESSING, PRESSURE TREATMENT

Gimadeev M. R., Davydov V. M. — Ensuring quality of a surface when mechanoprocessing figurine details

In this work the analysis of process of formation of a microrelief when milling is carried out by the spherical tool, the research of the factors influencing the size and the nature of roughness profilyasoglasno of the GOST R ISO standard 4287—2014 is conducted.
Key words: roughness, milling, the processing center

TECHNOLOGIES AND MACHINES FOR WELDING PRODUCTION AND RELATED PROCESSES

Pelipenko N. A., Sanin S. N. — Additive frameless technology for the production of large gears of rotating aggregates

The article considers the possibility of producing rotating aggregates large-sized gears from rolled products using welding. The article presents the design version of the large crown gear of the rotary kiln in the form welded construction. The authors propose to make gear crowns in the form of sectors with several teeth, forming them by plastic deformation methods with followed welding to the support rim of the gear. The technological recommendations is designed to ensure the accuracy of gears assembly and their subsequent reliability are adduced. In this case, it is proposed to fill the cavities formed inside the teeth with high-strength concrete or polymer material enabling to gear stiffness.
Key words: large-sized gear, welded construction, gear segment welding, frameless technology, tooth shaping

Birger Е. М., Moskvitin G. V., Polyakov A. N., Polyakova G. N. — Modern methods of laser deposition of high-temperature corrosion-resistant materials

A distinctive feature of modern engineering is the wide application of surface engineering techniques that allow to radically changing properties of the structural materials surface layers. Above all this is due to fact that it is the surface layer, as a rule, responsible for ensuring the operability of the product and forms the necessary level of operational properties.
Key words: surface engineering, surface layer of material, product operability, performance properties

SPECIAL TECHNOLOGY

Yangirov I. F., Ismagilov F. R., Maksudov D. V. — Linear asynchronous induction heater for oil pipelines

The article presents the developed mathematical model of linear induction induction heater of oil pipelines on the basis of the developed new design. This removes the deposited layers of paraffin on the inner surface of the pipe when pumping oil. The developed design with its theoretical calculations and positions can be used in mechanical engineering for metal melting and surface treatment. The proposed design is characterized by mobility, technology and versatility.
Key words: linear asynchronous motor, induction heater, running magnetic field, eddy currents

Samotugin S. S., Gagarin V. A., Belyakovskiy V. P., Uvanov V. I., Telenchi Yu. E. — Increase of functionality of crane rails by plasma gradient treatment

The possibility of applying plasma gradient hardening for increasing the life of crane rails is considered in the article. Calculation of equivalent stresses in the surface layer after hardening and their analysis to find the optimal design of the plasma gradient coating are carried out. The scheme of hardening allowing to increase the resource of crane rails is proposed.
Key words: plasma treatment, gradient layer, rail, durability, stress, wear

MACHINE TOOLS AND CUTTING TOOLS PRODUCTION

Moskvin V. K., Kyznetsov P. M. — The drive of the technological robot of the lathe robotic complex

In the article the questions of experimental researches of static characteristics of electrohydraulic step linear drive of the industrial robot used for automation of operations of "loading-unloading" of products in lathes with numerical control are considered. The method of carrying out the experiment in obtaining the static characteristics of the drive was based on the determination of the experimental dependences of the values of one specific drive parameter when the second parameter was changed in a steady state corresponding to the motion with a constant speed.
Key words: static characteristics, drive, CNC machine, industrial robot

METHODS OF CONTROL AND DIAGNOSTICS IN MECHANICAL ENGINEERING

Kormiltseva M. F., Levkova Yu. V. — The informative parameters justification at ultrasonic control of carbon-carbon composite materials

In the work the existing types of carbon-carbon composite materials (CCCM), defects in them, as well as informative parameters of ultrasonic quality control are analysed. To assess the quality of samples made from CCCM with a needle-punched frame, a shadow method of ultrasonic control was chosen. The quality evaluation was carried out by using the amplitude and time parameters and signal spectrum. As a result of the study of defect-free and defective samples, it was possible to establish that the use of a complex analysis of selected informative parameters makes it possible to assess the quality of samples from the CCCM.
Key words: carbon-carbon composite materials, defects in composite materials, ultrasonic testing, shadow method of ultrasonic control

MATHEMATICAL MODELING, NUMERICAL METHODS, PROGRAM COMPLEXES

Zverintsev V. V., Kochkina G. V., Zverintseva L. V., Vaytuzin O. P. — Modeling of virtual three-dimensional surfaces with given parameters of a roughness

Computer 3D surfaces of the real area microrelief are obtained on the basis of images from a metallographic — optical microscope with measured roughness parameters of the investigated surface of rectangular waveguides.
Key words: roughness, microrelief, pixel, waveguides, height map

STANDARDIZATION, QUALITY PRODUCTION MANAGEMENT

Khalfin L. M., Bratukhin A. G., Sokolov V. P., Fedorova N. V. — The integrated system of quality assurance of fuel-distributing units of JSC MPO-Rumyantsev for competitive aircraft engines

The main aspects of the integrated system for ensuring the quality of fuel-distribution units of JSC MPO-Rumyantsev for competitive aircraft engines are adduced. The main technologies for processing parts, increasing the technical level of control and measuring equipment, radical upgrading of the professional level of personnel, forming the ideology of "built-in quality" are separated. The further solution of problems will be carry out by joining to the basic quality management system of the environmental management system in accordance with GOST R ISO 14001—2015, industrial safety and health protection system in accordance with GOST 12.0.230—2017 (OHSAS 18001) and "lean production" system.
Key words: integrated quality system, fuel and distribution units, competitiveness, control and measurement equipment, the "built-in quality" ideology, the basic quality management system

ECONOMY AND ORGANIZATION OF PRODUCTION

Pisarenko O. V. — Key performance indicators (KPI) as a tool for increasing the efficiency of industrial enterprises

In this article, the author, based on the study and analysis of statistical data and documentation, practices of implementing labor efficiency monitoring systems at industrial enterprises, assesses the effectiveness of the system of key performance indicators (KPI) at enterprises of the rocket and space industry and its influence on the performance of personnel.
Key words: statistical data, control of labor efficiency, rocket and space industry, key indicator of efficiency, staff efficiency

FOREIGN EXPERIENCE

Potapova G. S. — Content of foreign journals

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Yu. M. Solomentsev

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