FIELD: welding.
SUBSTANCE: invention relates to welding, particularly, to methods of relieving residual stresses in welded joints. Method of reducing residual stresses in welded joints of metals includes installation and fixation of electric heaters on an item, installation and fixation of heat insulation, heating of item and its holding at temperature of 700-780 °C. In addition, a platform electromechanical vibrator is installed on the article and the article is heated simultaneously with superposition of low-frequency oscillations in the transverse direction in the vertical plane perpendicular to the axis of the weld seam for 3-6 hours.
EFFECT: increased efficiency of residual stress reduction for acceleration of method implementation.
2 cl, 3 dwg, 1 tbl, 2 ex
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