The Paton Welding Journal, 2007, №07

2007 №07 (01)

2007 №07 (03)

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The Paton Welding Journal, 2007, #7, 6-8 pages

Effect of electrodynamic treatment on stressed state of welded joints on steel St3

L.M. Lobanov, N.A. Pashchin, V.P. Loginov, V.N. Smilenko

E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
The effect of electrodynamic treatment (EDT) with electric current pulses on the stressed state of low-carbon steel St3 and its butt welded joints was investigated. The experimental procedure was developed to study the mechanism of a discrete drop of the loading force on flat specimens under a single electrodynamic impact. EDT of butt welded joints on steel St3 was found to provide a more than 50 % decrease in the level of residual welding stresses.
Keywords: welded structures, low-carbon steel, electrodynamic treatment, current pulse, base metal, welded joint, tensile force, flat specimen, evaluation of stresses, residual stresses

References

1. Lobanov, L.M., Pashchin, N.A., Skulsky, V.Yu. et al. (2006) Influence of electrodynamic treatment on the stressstrain state of heat-resistant steels. The Paton Welding J., 5, 8--11.
2. Aleksandrov, G.N., Borisov, V.V., Ivanov, V.L. et al. (1985) Theory of electric apparatuses. Moscow: Vysshaya Shkola.
3. Lobanov, L.M., Pashchin, N.A., Loginov, V.P. et al. (2007) Change of the stress-strain state of welded joints of aluminium alloy AMg6 after electrodynamic treatment. The Paton Welding J., 6, 7–14.
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5. Guz, A.N., Makhort, F.G., Gushcha, O.N. et al. (1974) Principles of non-destructive ultrasonic inspection method for determination of stresses in solids. Kiev: Naukova Dumka.

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Suggested Citation

L.M. Lobanov, N.A. Pashchin, V.P. Loginov, V.N. Smilenko (2007) Effect of electrodynamic treatment on stressed state of welded joints on steel St3. The Paton Welding J., 07, 6-8.

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