FIELD: metallurgy.
SUBSTANCE: in compliance with claimed process, welder qualification is defined by index number (QW) in comparison of absolute values of the sum of areas of the weld section departures from standard area with the latter. Standard area is defined as the difference in areas limited by outer and inner standard shapes. Calculation of said outer and inner standard shapes is effected by mathematical model with allowance for spatial position of the check weld in welding, physical and mechanical properties of fused metal of the weld, that is, capillary constant, limiting width and height of the weld convexity set by Specs.
EFFECT: quantitative evaluation of welder qualification.
4 dwg, 2 tbl
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