DECREASING DEFORMATION OF WELDING JOINTS
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Abstract
Some ways to decrease the residual deformation of welding joints are considered. It was performed the researches to decrease the lateral residual deformation of welding joints accomplished by argon welding. It was proposed to decrease the lateral residual deformation of welding joints by using of hard carbon dioxide to reduce the area of metal heating and also by selecting of optimal welding conditions. It was found the values of lateral deformation of welding joints accomplished by argon welding with using of hard carbon dioxide as well as under usual conditions. It was evaluated the functional connections between welding conditions and lateral deformation, which allowed to calculated the optimal welding conditions to supply the minimal residual deformation. It was found that the use of hard carbon dioxide in the course of arc welding affords decreasing of lateral residual deformation of welding joints in 1,6 time in comparison with the arc welding without cooling.
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