FIELD: process engineering.
SUBSTANCE: invention relates to welding, particularly, to preparation of part edges for at welding of butt joint. Dual-sided skews and edge blunting are made for making of double-welded butt joint. Said skews are asymmetric over the part depth with smaller skew-to-larger skew ratio of 0.2-0.6 at total height of skews not exceeding of 50% of welded parts depth. Smaller skew is arranged on welding side at overhead position.
EFFECT: lower input of welding materials, faster preparation of weld edges.
8 dwg
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