The Paton Welding Journal, 2002, №09

2002 №09 (08)

2002 №09 (10)

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The Paton Welding Journal, 2002, #9, 30-34 pages

A-TIG welding of structural steels for power engineering applications

D.R. Bajic¹, M.M. Savitsky², G.M. Melnichuk², A.F. Lupan²

¹Technical University, Podgorica, Montenegro
²E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.

Abstract
Efficiency of application of tungsten-electrode inert-gas welding using activating fluxes (A-TIG) for low-alloy carbon and heat-resistant steels was studied. It is shown that increase in the penetrating power of the arc at decreased currents may initiate formation of structural components in the joints which increase strength and decrease ductility of metal. To avoid this effect on structural strength of the joints, it is advisable to subject them to tempering, including the local one, combined with self-pressing to provide a satisfactory geometry of the weld
Keywords: argon-arc welding, activating flux, weld formation, self-pressing, structural steels, chemical composition, mechanical properties, metal structure

References

1. (1974) Technology for fusion welding of metals and alloys. Ed. by B.E. Paton. Moscow: Mashinostroenie.
2. Savitsky, M.M., Kushnirenko, B.M., Olejnik, O.I. (1999) Peculiarities of tungsten-electrode welding with activators (A-TIG process). Avtomatich. Svarka, 12, 20-28.
3. Gordon, J.R. (1995) Perspectives on welding research and development in the USA. Weld. Rev. Int., 9, 95-108.
4. (2001) Welding and joining technologies in the 21st century. J. JWS, 3, 6-18.
5. Savitsky, M.M., Lupan, A.F., Melnichuk, G.M. et al. (2000) Methods for application of activators in TIG welding of steels. The Paton Welding J., 3, 52-53.
6. Savitsky, M.M., Kulik, V.M., Bursky, G.V. (2000) Peculiarities of arc treatment of quenching steels without melting. Ibid., 5, 30-35.

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Suggested Citation

D.R. Bajic, M.M. Savitsky, G.M. Melnichuk, A.F. Lupan (2002) A-TIG welding of structural steels for power engineering applications. The Paton Welding J., 09, 30-34.

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