Once cooled to the original temperature, the tensile stress zones in the weld and the near-weld zone throughout the joint area reach equilibrium with the compressive stress zones in the base metal, thereby generating the weld residual stresses inherent to the structure itself. 2) The effect of welding heat input: Generally speaking, when the heat input is high,

Once cooled to the original temperature, the tensile stress zones in the weld and the near-weld zone throughout the joint area reach equilibrium with the compressive stress zones in the base metal, thereby generating the weld residual stresses inherent to the structure itself. 2) The effect of welding heat input: Generally speaking, when the heat input is high,