FIELD: process engineering.
SUBSTANCE: invention relates to machining, particularly, to making curved stiffness ribs for critical components for ship building and other industrial branches. Flange and wall work pieces are cut end sections to curved to preset radius of outer and inner edges. Wall workpiece is bent to rib while flange workpiece is bent to plane to preset radii. Both work pieces are welded together. Curved stiffness ribs work pieces are cut to increasing curvature radii. Lengths of wall end sections and medium section by magnitude of weld seam lengthwise shrinkage over length of end sections and medium section.
EFFECT: decreased labor input, higher precision, expanded machining performances.
4 cl, 3 dwg
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