Determining Optimal Geometric Dimensions of Alternative Design Elements of Rolled and Welded Tube-to-Tube Sheet Joints

Токарев, А. С.; Karetnikov, D. V.; Fayrushin, A. M.

doi:10.1007/978-3-030-54814-8_28

Cited by 6 publications

(5 citation statements)

References 13 publications

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“…As per the findings in reference [10], employing friction welding enables the creation of enduring joints possessing mechanical and plastic properties akin to those of the base metal within the zone of thermomechanical influence, all without the necessity for thermal operations.…”

Section: Introductionmentioning

confidence: 75%

Application of alternative technologies in repair of rolled and welded tube to tubesheet joints

Tokarev,

Karetnikov,

Fairushin

2024

E3S Web of Conf.

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The article proposes a technology of repair of composite (i.e. obtained by welding and expanding) tube to tubesheet joints of heatexchanging apparatuses using friction welding operations devoid of heat treatment. The objective of the investigation was to determine the influence of using the proposed technology for repairing the composite joints made of 15Cr5Mo steel on the properties of the joint. Samples made by different technologies were tested for strength and tightness. The result of the study was the confirmation of compliance of the characteristics of the samples made by the proposed technology with the samples made by the currently widely used technology utilizes arc welding.

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Section: Introductionmentioning

confidence: 75%

Application of alternative technologies in repair of rolled and welded tube to tubesheet joints

Tokarev,

Karetnikov,

Fairushin

2024

E3S Web of Conf.

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“…To simplify the experiments, the studies were carried out on welded joints between tube and equivalent hub, in which the equivalent hub plays the role of the tube plate. The equivalent hub diameter is determined according to [10,11]. Taking into account the corrosion resistance requirements for the heat-exchangers made of martensitic steels (resistant to heat), microstructural and corrosion studies were carried out to evaluate the characteristics of TTP-joint obtained by rotational friction welding without using heat treatment in comparison with samples made by arc welding using widespread technology and thermal treatment.…”

Section: Methodsmentioning

confidence: 99%

Study of corrosion resistance of friction welding joints between tubes and tube plate

Karetnikov

Токарев

Yakhin

et al. 2022

J. Phys.: Conf. Ser.

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The cost of production and reliability of shell-and-tube heat exchangers is mainly determined by the features of the tube bundle and the joint between tube and tube plate (TTP) in particular. This paper provides a comparative analysis of the weld structure and electrode potential distribution of weld joints and base metal seams simulating the joint between heatexchange tube and tube plate (steel 5CrMo16) using the following welding methods: manual metal arc welding, gas tungsten arc welding and rotating friction welding. Comparison between macro- and microstructures of certain zones of tested welded joints, as well as values of electrode potential at specific points of the base metal and welded joints obtained by various methods, made it possible to conclude the effectiveness of application of specific ways of welding by their effect on corrosion resistance of given assembly.

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“…There are studies [8][9][10] showing the effectiveness of friction welding for obtaining rolled and welded tube to tube sheet joints. Application of this technology makes it possible to obtain welded joints with the required operational properties without the need for heat treatment operations.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of efficiency of rotary friction welding in obtaining joints from corrosion and heat resistant steel

Tokarev,

Yakhin,

Karetnikov

2024

E3S Web of Conf.

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The efficiency of using rotary friction welding in obtaining joints from 20Cr13 steel has been evaluated. For this purpose, test samples with welded joint and from the base metal were made, and then microstructure studies and tensile tests were carried out. As part of the microstructure study, the structure of the welded joint metal and base metal was determined. As a result of tensile tests, the tensile strength, relative elongation after rupture, and fracture area were determined for the base metal and welded joint specimens. These tests have shown that friction welding can produce joints without the use of heating during welding.

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Determining Optimal Geometric Dimensions of Alternative Design Elements of Rolled and Welded Tube-to-Tube Sheet Joints

Cited by 6 publications

References 13 publications

Application of alternative technologies in repair of rolled and welded tube to tubesheet joints

Application of alternative technologies in repair of rolled and welded tube to tubesheet joints

Study of corrosion resistance of friction welding joints between tubes and tube plate

Evaluation of efficiency of rotary friction welding in obtaining joints from corrosion and heat resistant steel

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