| 2003 №09 (01) | 2003 №09 (03) |
The Paton Welding Journal, 2003, #9, 5-10 pages
Application of a scanning electron beam for welding to prevent root defects in thick steels
V.M. Nesterenkov
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Influence was studied of disturbances of the liquid metal surface, which is on the front wall of the keyhole, on development of root defects in electron beam welding of thick steel. It is shown that a longitudinal scanning of the electron beam allows decreasing the disturbances of melt surface on the front wall of the keyhole and reducing the number of root defects in welds
Keywords: steels, great thickness, electron beam welding, root defects, penetration peaks, keyhole, electron beam scan¬ning, capillary waves
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