Finite element (FE) process modelling of the inertia friction welding (IFW) between two tubular CrMoV components has been carried out using the DEFORM-2D (v10.2) software. This model has been validated against experimental test welds of the material; this included process data such as upset and rotational velocity as well as thermal data collected during the process using embedded thermocouples. The as-welded residual stress from the FE model has been compared to experimental measurements taken on the welded component using the hole drilling technique. The effects of the solid-state phase transformations which occur in the steel are considered and the trends in the residual stress measurements were well replicated when compared to the experimental data.
Bennett, C. (in press). Finite element modelling of the inertia friction welding of a CrMoV alloy steel including the effects of solid-state phase transformations. Journal of Manufacturing Processes, 18, https://doi.org/10.1016/j.jmapro.2015.01.003