| 2001 №11 (05) | 2001 №11 (07) |
The Paton Welding Journal, 2001, #11, 24-27 pages
Laser butt welding with high-frequency heating of weld edges
V.Yu. Khaskin, V.D. Shelyagin, V.P. Garashchuk, V.N. Sydorets, A.V. Sakharnov, E.I. Goncharenko
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Investigated was the combined effect on steel by laser radiation and high-frequency heating in butt welding. Concurrent high-frequency heating to a temperature on the sample surface equal to 1100-1200 oC was established to cause an increase of 1.5 times either in the penetration depth or in the welding process speed. Geometry of the welds is close to that typical for laser welding, although the welds are different in structure (the weld and HAZ metal contains no quenching structures characteristic of laser welding, and values of hardness differ to a lesser degree from those of the base metal).
Keywords: combined welding methods, laser and high- frequency welding, equipment, conditions, structure
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