FIELD: welding processes and equipment, namely process for forming welded joint, possibly at making cylindrical parts in different branches of machine engineering.
SUBSTANCE: welded joint includes first, second and third parts mutually joined by means of closed welded seam. One part has recess in initial and final zones of welded seam. Said recess is used for degassing welding bath at side of root. First, second and third parts are preliminarily assembled and welding is started in zone of recess, then welding is continuously going on and it is terminated in the same zone of recess where welding was started.
EFFECT: possibility for receiving welded joint having no pores.
5 cl, 5 dwg
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