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Contents of the issue

2021 №10 (06) DOI of Article
2021 №10 (08)

Automatic Welding 2021 #10
Avtomaticheskaya Svarka (Automatic Welding), #10, 2021, pp. 49-53

Application of plastic deformation to improve the mechanical properties of resistance welding machines

O.A. Davidenko1, A.V. Zavdoveyev2

1Donetsk O.O. Galkin Physico-Technical Institute of NASU. 46 Nauki Prosp., Kyiv, Ukraine.
2E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

One of the main functional features of an electrode for resistance welding is its wear resistance, which is determined, chiefly, by the level of material strength properties in the range of temperatures developing on its surface. In the work, we propose a scheme of thermodeformational treatment of dispersion-hardened electrode alloy of Cu–Cr–Zr system, which is based on application of intensive plastic deformation, combined with special heat treatment. It is shown that at treatment of the alloy by the developed scheme, the highest level of strength properties is reached in the rod billets in the temperature range up to 450 °С. It ensures an increase in electrode wear resistance by 15 % at spot welding. 15 Ref., 3 Tabl., 6 Fig. .
Keywords: intensive plastic deformation, chromium bronze, properties, resistance welding electrodes

Received: 30.07.2021


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