The Paton Welding Journal, 2007, №01

2007 №01 (05)

2007 №01 (07)

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The Paton Welding Journal, 2007, #1, 27-30 pages

Gas-shielded laser and laser-arc welding of steels

V.D. Shelyagin¹, V.Yu. Khaskin¹, A.V. Siora¹, A.V. Bernatsky¹, E.I. Goncharenko¹, T.G. Chizhskaya²

¹E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
²NTUU «Kiev Polytechnic University» Kiev, Ukraine

Abstract
The effect of argon, carbon dioxide and their mixture on peculiarities of laser and hybrid welding of low-carbon and low-alloy steels was determined. Utilisation of the shielding gas mixture was found to have a positive effect. It is shown that increase of the arc power component in hybrid welding with a laser power of 1–2 kW leads to levelling of the hybrid effect. Stabilisation of the arc and its fixation to the laser beam persists, which allows increasing the welding speed and penetration depth in groove welding
Keywords: laser welding, low-carbon and low-alloy steels, continuous radiation, decreased power, electrode wire, arc, hybrid process, steel, metallographic examination, structure, hardness

References

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Suggested Citation

V.D. Shelyagin, V.Yu. Khaskin, A.V. Siora, A.V. Bernatsky, E.I. Goncharenko, T.G. Chizhskaya (2007) Gas-shielded laser and laser-arc welding of steels. The Paton Welding J., 01, 27-30.

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