To reduce tensile residual stress in a welded region, we developed a new welding method that applies a water-shower behind the welding torch. To verify the effects of the meth od, specimens welded with or without water shower cooling were manufactured. Residual stresses of the specimens were experimentally measured. It was found that tensile residua l stresses were generated on the surface of the welds and those were reduced in the case that the water-shower was applied. These measurement results agree wel...
英字タイトル:
Development of Residual Stress Improvement Technology for Multi-Layer Welded Joint of Austenitic Stainless Steel Using Rapid Cooling During Welding