Simufact Welding is used for modelling and optimizing a wide range of fusion and pressure welding processes, taking into account weld sequence and clamping. Processes such as arc welding, laser beam welding, electron beam welding, brazing as well as resistance spot welding can be modelled in Simufact Welding. Additionally, Simufact Welding can be used to model the heat treatment, different variants for cooling and unclamping as well as the mechanical load on welded structures.