FIELD: process engineering.
SUBSTANCE: invention relates to assembly of box-like structures for welding at specialised devices. Proposed method comprises mounting and locking the opposed cover frame and box bottom. Then, corrugated walls are plaid on surfaces of said cover and bottom. Then, two edges are subjected to contact tack welding to produce weld points on both sides of corrugation. Weld points are made at corrugated wall edges adjacent to cover frame and box bottom.
EFFECT: higher quality of welded joints, welding efficiency, lower costs.
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