Effect of Vibratory Weld Conditioning on Weld Impact Toughness

With vibratory weld conditioning, the enhancement of weld metal microstructure can be achieved. The mechanical properties, level of residual stresses, and deformation can also be affected. This article provides the research results of the effect on weld metal impact toughness. Four different types of single welds were made; vibrated, tempered, and combinations of both conditions were compared to as-welded condition. Results were compared to and confirmed with multipass weld impact toughness measurements. The vibration during welding benefits energy absorbed in impact toughness test of weld metal and improves fracture behavior.