Automatic Welding, 2024, №04



2024 №04 (02)

DOI of Article 10.37434/as2024.04.03

2024 №04 (04)

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Avtomaticheskaya Svarka (Automatic Welding), #4, 2024, pp. 24-31

Producing of coaxial joints of dissimilar metals with the help of explosion

A.G. Bryzgalin¹, E.D. Pekar¹, S.D. Ventsev¹, M.O. Pashchin¹, P.S. Shlionskyi²

¹E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: andreybag60@ukr.net
²Liaoning Xin Huayang Weiye Equipment Manufacturing company Ltd № 1 Road, Tieling high-tech industrial development zone, Liaoning provice, China. E-mail: shlensk@ukr.net

Unlike different type of fusion welding, explosion welding allows joining metals and alloys in almost any combinations, which provides the possibility of manufacturing products with a combination of service properties of the used materials at a high level of strength, tightness, fatigue strength, etc. Except of bimetals produced in fairly large volumes for chemical and oil equipment, explosion welding is used to manufacture products with special characteristics for different industries. It is possible to attribute the production of coaxial joints of different metals (welding occurs along generatrices of axisymmetric co-axial pipes), which are more complex and interesting from a scientific point of view, and more economical in practice than alternative methods of their production, as a special class of tasks. In some cases, dissimilar joint can be created by explosion crimping without welding the elements to be joined. This work presents a number of technological processes for manufacture of coaxial products developed at the PWI, using both explosion welding and crimping. The presented developments testify that a wide range of practical tasks can be solved with the help of explosion. 18 Ref., 11 Fig.
Keywords: coaxial joints, explosion welding, bimetal, adapter, rod, coupling, permanent joint

Received: 15.02.2024
Received in revised form: 24.04.2024
Accepted: 18.07.2024

References

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