METHOD OF ASSESSMENT QUALIFICATIONS WELDER

摘要

1. A method for evaluating the qualification of the welder from the deviation of the weld surface on the standard, including measurement of geometric dimensions of the weld pattern and comparing them with the amounts established by the regulatory technical documents, characterized in that the size of established regulatory and technical documents, taking into account the physico- mechanical properties of the molten weld material calculated form the reference, the area of ​​the weld standard, by measuring the geometrical dimensions of the weld surfaces define the shape of the weld surface and calculate the absolute deviation cross-sectional areas of the weld surface of the reference area, and calculate the index qualification formula welder: where QW - welder qualification index; N = Lw / dLw + 1 - the number of sections measured weld increments dLw measurement greater than or equal to 0.1 mm; Lw - length of the weld; j - current value measured cross section of the weld ; of S- reference area - the absolute deviation of the area j-th section of the weld surface of the reference area, which is defined by the formula: somewhere the absolute value of the deviation form the weld surface in the j-th section of the external and internal forms of the standard, which is defined by by the formula: B - width measurement. The values ​​are in the range from 1,1edo 10e; e maximum width weld established regulatory and technical documents, - the measured values ​​of the surface coordinates j-th cross-section of the weld increments dx from 0.1 mm to 5 mm; Z, x - coordinate system Z0X coordinates; Z (x) - the curve that defines the outer shape of the weld standard; Z (x) - the curve