FIELD: process engineering.
SUBSTANCE: invention relates to butt welding. Proposed device comprises movable welding head, support table 1 and clamp 3. Said clamp incorporates two clamping elements 4, 5 that act independently. At least one clamping element 4, 5 is suitable for use with two or more pressure magnitudes. Additional horizontal elements 11 serve to press on metal sheets to be welded together and strained unless reliable contact between surfaces to be welded is provided.
EFFECT: preventing local deformation of weld seam and sheet.
22 cl, 2 dwg
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