Abstract
Residual stresses and welding deformation caused by arc welding sometimes lower the strength of a welded joint and spoil its appearance. This paper presents an experimental method proposed for evaluation of welding deformations using an indirect displacement measuring system. We examined how the base metal deforms during the welding operation and how the final deformation pattern is affected by such factors as plate thickness and welding speed. A bead-on-plate weld is treated here. The experiments showed that a simple V-shaped deformation is observed in the case of a thick base metal, whereas a thin base metal deforms in a complex manner with its central portion being deformed downward.
