ABSTRACT

Present work is a numerical study of the effect of welding speed on welding induced residual stress in TIG welding. The moving heat source was modelled as a Uniformly Distributed Circular Heat Flow in ANSYS Workbench 15.0 to get the longitudinal and transverse residual stresses which were validated with the experimental data from literature. A study was conducted with the help of the model to assess the influence of change in welding torch speed on residual stresses. The predicted effect of weld speed on residual stress is in good agreement with the established knowledge in literature.