ISSN 1562-322X
Journal "Tekhnologiya Mashinostroeniya"
Contents of the current issue (No. 06 2025)
TEKHNOLOGIYA MASHINOSTROENIYA (TECHNOLOGY OF MECHANICAL ENGINEERING)
UDC 621.791.763
DOI: 10.34641/TM.2025.276.6.036
Kozin A. E., Frolov A. A., Aleksakhin A. V., Suslin Yu. I., Vinogradov A. N. — Heat treatment of cast side frames of freight car bogies made of 20GFL steel to increase their strength and durability
The paper presents the complex of mechanical properties of cast side frames of freight car bogies made of low-carbon low-alloy 20GFL steel subjected to heat treatment (quenching and tempering) after normalization. The increase in durability of side frames due to the improvement of steel microstructure (tempered sorbite) is substantiated.
Keywords: cast side frame, durability, heat treatment, quenching, self-tempering.
DOI: 10.34641/TM.2025.276.6.036
Kozin A. E., Frolov A. A., Aleksakhin A. V., Suslin Yu. I., Vinogradov A. N. — Heat treatment of cast side frames of freight car bogies made of 20GFL steel to increase their strength and durability
The paper presents the complex of mechanical properties of cast side frames of freight car bogies made of low-carbon low-alloy 20GFL steel subjected to heat treatment (quenching and tempering) after normalization. The increase in durability of side frames due to the improvement of steel microstructure (tempered sorbite) is substantiated.
Keywords: cast side frame, durability, heat treatment, quenching, self-tempering.
TECHNOLOGIES AND MACHINES
UDC 621.86.06
DOI: 10.34641/TM.2025.276.6.037
Konishcheva O. V., Bryukhovetskaya E. V., Shchepin A. N., Brungardt A. V. — Areas of rational use of vortex jet gripping devices for automation of loading of technological equipment
A gripping device based on the jet-vortex gripping method for loading and unloading objects with flat and curved surfaces in the gripping zone is presented. The design and application areas of the gripper are considered.
Keywords: jet-vortex, ejection, gripping device, transportation
UDC 621.793
DOI: 10.34641/TM.2025.276.6.038
Vilkova E. A., Safonov A. V., Legkova E. A. — Development of conductive ink compositions for flat offset printing
The article investigates the possibility of creating conductive ink compositions for flat offset printing based on single-walled carbon nanotubes. A series of experiments were carried out, and ways to optimize the composition were proposed. The results of the work open up prospects for the use of offset printing in the production of flexible electronics, including sensors and smart packaging.
Keywords: printed electronics, offset printing, conductive inks, single-walled carbon nanotubes (SWCNTs), UV curing, electrical resistance, surfactants, flexible substrates
DOI: 10.34641/TM.2025.276.6.037
Konishcheva O. V., Bryukhovetskaya E. V., Shchepin A. N., Brungardt A. V. — Areas of rational use of vortex jet gripping devices for automation of loading of technological equipment
A gripping device based on the jet-vortex gripping method for loading and unloading objects with flat and curved surfaces in the gripping zone is presented. The design and application areas of the gripper are considered.
Keywords: jet-vortex, ejection, gripping device, transportation
UDC 621.793
DOI: 10.34641/TM.2025.276.6.038
Vilkova E. A., Safonov A. V., Legkova E. A. — Development of conductive ink compositions for flat offset printing
The article investigates the possibility of creating conductive ink compositions for flat offset printing based on single-walled carbon nanotubes. A series of experiments were carried out, and ways to optimize the composition were proposed. The results of the work open up prospects for the use of offset printing in the production of flexible electronics, including sensors and smart packaging.
Keywords: printed electronics, offset printing, conductive inks, single-walled carbon nanotubes (SWCNTs), UV curing, electrical resistance, surfactants, flexible substrates
TECHNOLOGY AND EQUIPMENT FOR MECHANICAL AND PHYSICO-TECHNICAL PROCESSING
UDC 621.9.011:669.15-194.56:539.25'32'536
DOI: 10.34641/TM.2025.276.6.039
Mitrofanov A. P., Isaeva A. A., Danilenko M. V., Parsheva K. A., Klochkov I. S. — Influence of minimum quantity lubrication supply conditions on the operational parameters of the nickel alloy grinding process
As an alternative to the use of cutting fluids, the environmentally oriented minimum quantity lubrication technology is being introduced in global practice. However, due to the low cooling capacity of this technology, additional air cooling is increasingly used. The effectiveness of this method directly depends on the rational choice of parameters; accordingly, experimental studies have been carried out for this purpose.
Keywords: minimum quantity lubrication, grinding, mist parameters, cold air, oil supply, air flow rate
DOI: 10.34641/TM.2025.276.6.039
Mitrofanov A. P., Isaeva A. A., Danilenko M. V., Parsheva K. A., Klochkov I. S. — Influence of minimum quantity lubrication supply conditions on the operational parameters of the nickel alloy grinding process
As an alternative to the use of cutting fluids, the environmentally oriented minimum quantity lubrication technology is being introduced in global practice. However, due to the low cooling capacity of this technology, additional air cooling is increasingly used. The effectiveness of this method directly depends on the rational choice of parameters; accordingly, experimental studies have been carried out for this purpose.
Keywords: minimum quantity lubrication, grinding, mist parameters, cold air, oil supply, air flow rate
PHYSICAL METALLURGY AND HEAT TREATMENT
UDC 621.9.011:669.15-194.56:539.25'32'536
DOI: 10.34641/TM.2025.276.6.039
Mitrofanov A. P., Isaeva A. A., Danilenko M. V., Parsheva K. A., Klochkov I. S. — Influence of minimum quantity lubrication supply conditions on the operational parameters of the nickel alloy grinding process
As an alternative to the use of cutting fluids, the environmentally oriented minimum quantity lubrication technology is being introduced in global practice. However, due to the low cooling capacity of this technology, additional air cooling is increasingly used. The effectiveness of this method directly depends on the rational choice of parameters; accordingly, experimental studies have been carried out for this purpose.
Keywords: minimum quantity lubrication, grinding, mist parameters, cold air, oil supply, air flow rate
DOI: 10.34641/TM.2025.276.6.039
Mitrofanov A. P., Isaeva A. A., Danilenko M. V., Parsheva K. A., Klochkov I. S. — Influence of minimum quantity lubrication supply conditions on the operational parameters of the nickel alloy grinding process
As an alternative to the use of cutting fluids, the environmentally oriented minimum quantity lubrication technology is being introduced in global practice. However, due to the low cooling capacity of this technology, additional air cooling is increasingly used. The effectiveness of this method directly depends on the rational choice of parameters; accordingly, experimental studies have been carried out for this purpose.
Keywords: minimum quantity lubrication, grinding, mist parameters, cold air, oil supply, air flow rate
PHYSICAL METALLURGY AND HEAT TREATMENT
UDC 669.715
DOI: 10.34641/TM.2025.276.6.040
Predko P. Yu., Mayorov D. I., Shanin N. D., Alpatov A. A., Bochvar S. G., Bakhteeva N. D., Chueva T. R., Umnov P. P., Todorova E. V., Gamurar N. V. — Influence of ultrasonic melt treatment on the structure of an Al-Mg-Si alloy for cast-welded structures
The paper considers and tests the technology of ultrasonic treatment of the melt flow during casting of ingots of aluminum alloys of the Al-Mg-Si system, additionally alloyed with Sc and Zr. It is determined that this method makes it possible to obtain a non-dendritic (sub-dendritic) structure in ingots 40 mm in diameter.
Keywords: aluminum alloys, cast-welded structures, ultrasonic treatment, grain size, properties, intermetallic phases
UDC 669.15'.74.194-15.669.17
DOI: 10.34641/TM.2025.276.6.041
Malinov L. S., Malinov V. L., Lavrova E. V., Tsys E. A. — Increasing the wear resistance of spring steel with a graphitized surface by obtaining a multiphase structure with metastable retained austenite
Data are presented on increasing the wear resistance of 60S2A steel by creating a graphitized surface layer and obtaining a multiphase structure with metastable retained austenite undergoing dynamic deformation martensitic transformation (self-quenching effect under loading). This expands the application areas of spring steel.
Keywords: graphitization, steel, quenching, martensite, lower bainite, graphite, metastable austenite, wear resistance
DOI: 10.34641/TM.2025.276.6.040
Predko P. Yu., Mayorov D. I., Shanin N. D., Alpatov A. A., Bochvar S. G., Bakhteeva N. D., Chueva T. R., Umnov P. P., Todorova E. V., Gamurar N. V. — Influence of ultrasonic melt treatment on the structure of an Al-Mg-Si alloy for cast-welded structures
The paper considers and tests the technology of ultrasonic treatment of the melt flow during casting of ingots of aluminum alloys of the Al-Mg-Si system, additionally alloyed with Sc and Zr. It is determined that this method makes it possible to obtain a non-dendritic (sub-dendritic) structure in ingots 40 mm in diameter.
Keywords: aluminum alloys, cast-welded structures, ultrasonic treatment, grain size, properties, intermetallic phases
UDC 669.15'.74.194-15.669.17
DOI: 10.34641/TM.2025.276.6.041
Malinov L. S., Malinov V. L., Lavrova E. V., Tsys E. A. — Increasing the wear resistance of spring steel with a graphitized surface by obtaining a multiphase structure with metastable retained austenite
Data are presented on increasing the wear resistance of 60S2A steel by creating a graphitized surface layer and obtaining a multiphase structure with metastable retained austenite undergoing dynamic deformation martensitic transformation (self-quenching effect under loading). This expands the application areas of spring steel.
Keywords: graphitization, steel, quenching, martensite, lower bainite, graphite, metastable austenite, wear resistance
INFORMATION
Grigoryants A. G., Shiganov I. N. — New encyclopedic edition on laser technologies
The article presents materials on a series of 6 monographs under the general title "Laser Equipment and Technologies" by authors Grigoryants A. G., Shiganov I. N., Misyurov A. I., under the general editorship of Grigoryants A. G. Brief annotations are provided for each of the six books. The books were published by the Bauman Moscow State Technical University publishing house over the period from 2022 to 2025, with a total volume of about 200 printer's sheets.
Keywords: monograph, series, laser technologies
Announcement of the Weldex 2025 exhibition
The article presents materials on a series of 6 monographs under the general title "Laser Equipment and Technologies" by authors Grigoryants A. G., Shiganov I. N., Misyurov A. I., under the general editorship of Grigoryants A. G. Brief annotations are provided for each of the six books. The books were published by the Bauman Moscow State Technical University publishing house over the period from 2022 to 2025, with a total volume of about 200 printer's sheets.
Keywords: monograph, series, laser technologies
Announcement of the Weldex 2025 exhibition