UDC 621.763 DOI: 10.34641/TM.2025.274.4.022 Shiganov I. N., Kholopov A. A., Lomakin I. A., Bogatyrev D. O. — Structural features of Fe-Cu composite materials obtained by additive technology of direct laser deposition
Samples of three compositions of various compositions were obtained by the method of direct laser deposition. It is established that the structure of these materials is a copper matrix with uniformly distributed iron particles. The possibility of obtaining material without delamination by fusing steel and bronze powders is shown. Keywords: composites, additive technologies, modes, structure, compositions
UDC 621.313.13 DOI: 10.34641/TM.2025.274.4.023 Yangirov I. F., Kabirov A. M., Khalikov A. R., Kudryavtsev N. S., Andreev A. A. — Training simulator for studying relay protection of an asynchronous motor with a squirrel-cage winding
The article attempts to solve the problem of creating a training simulator for training relay protection specialists, to study the relay protection of an asynchronous motor on a simulator as close as possible to practical operating conditions. Keywords: power engineering, relay protection, overvoltage, phase, short circuit, consumer
TECHNOLOGY AND EQUIPMENT FOR MECHANICAL AND PHYSICO-TECHNICAL PROCESSING
UDC 621.91.01 DOI: 10.34641/TM.2025.274.4.024 Erenkov O. Yu., Yavorsky D. O. — A promising technical solution for turning reinforced polymer composite materials
This paper presents methods for turning reinforced polymer composite materials, the technical essence of which is the implementation of vibro-impact treatment of workpieces prior to turning. Methods and results of experimental studies of geometric parameters of the quality of the turned surface of a part are presented. Keywords: polymer composite materials, turning, vibro-impact action, machined surface, roughness, deviation from cylindricity
UDC 621.92 DOI: 10.34641/TM.2025.274.4.025 Babayan V. V., Akulinichev P. D., Goncharov A. A., Gnatenko P. E. — Experimental study of residual pressure in abrasive material during flow tumbling
The paper considers the residual pressure arising in the abrasive material, and its experimental dependence on the depth of immersion into the working medium is obtained. The analysis of the obtained results is carried out. Keywords: flow tumbling, free abrasive, abrasive material pressure
FRICTION AND WEAR IN MACHINES
UDC 621.941 DOI: 10.34641/TM.2025.274.4.026 Tselikov P. V., Sukhenko S. A., Kisel A. G., Deshevykh D. V. — Investigation of the tool life period during finish turning of a TN1 alloy workpiece
The article presents studies of the tool life period during finish turning of a workpiece made of a shape memory alloy using the example of TN1 titanium nickelide. Keywords: workpiece, cutting tool, turning, tool life, wear
PHYSICAL METALLURGY AND HEAT TREATMENT
UDC 621.791.92 DOI: 10.34641/TM.2025.274.4.027 Emelyushin A. N., Gromov V. E., Chapaikin A. S., Shlyarova Yu. A., Mikhno A. R. — Structure and properties of M9 high-speed steel surfacing after tempering and electron beam irradiation
The structure and properties of an M9 high-speed steel coating formed by plasma surfacing in a mixture of argon and nitrogen gases are investigated. Keywords: plasma surfacing, flux-cored wire, hardness, high-speed steel, microstructure, electron beam treatment
UDC 621.8 DOI: 10.34641/TM.2025.274.4.028 Kokoreva O. G., Antonov A. A. — Quantitative assessment of the degree of hardening of the surfaces of oil and gas equipment parts
A quantitative assessment of the degree of hardening of the surfaces of oil and gas equipment parts is carried out by studying the microstructure of hardened specimens along the surface depth. Keywords: microstructure, deformation, static-pulse treatment, hardening depth, grain size, high-manganese steel, quantitative assessment, hardening efficiency
WELDING, RELATED PROCESSES AND TECHNOLOGIES
UDC 812.35.15.01 DOI: 10.34641/TM.2025.274.4.029 Pavlov A. A., Amezhnov A. V., Utkin I. Yu., Kartunov A. D. — Methodology for studying the kinetics of austenite phase transformations during the welding process
The paper describes a methodology for recording and decoding thermokinetic curves on a dilatometer and constructs a thermokinetic diagram of austenite decomposition for the overheating zone of low-carbon low-alloy steel at various cooling rates. Keywords: dilatometer, welding thermal cycle, thermokinetic diagram
UDC 621.791.927 DOI: 10.34641/SP.2025.1070.1.006 Zarechensky D. A., Chigarev V. V., Vorobiev V. V., Shpak A. A. — Influence of the design of a flux-cored strip electrode on the dilution of the base metal in the deposited metal
The paper presents the results of comparative studies of the influence of the design of flux-cored strips on the dilution of the base metal in the deposited metal. It is established that the location of the lock joints of the flux-cored strip shell affects the penetration depth and the dilution of the base metal in the deposited metal. Keywords: flux-cored strip, lock joints, shell design, penetration depth, dilution of base metal in deposited metal
AUTOMATION AND CONTROL OF TECHNOLOGICAL PROCESSES AND PRODUCTIONS
UDC 658.5 DOI: 10.34641/TM.2025.274.4.030 Reshetnikova A. V., Feofanov A. N. — Automation of error search in textual technical documentation for mechanical engineering, instrument making, and construction products