**5. Conclusions**

Welding sequences effect on temperature distribution, residual stresses and distortions of T-joint fillet welds has been studied numerically in this paper. The simulation results revealed that peak temperature achieved in the welding was greatly affected by the WS and residual stress and angular distortion produced cannot both hold in minimum for a WS. The smallest longitudinal and transverse residual stresses occurred in WS-2, while the smallest angular distortion and difference in WS-4. The distributions of temperature, longitudinal and transverse residual stresses as well as angular distortions were also presented.

Investigating the aspects of shrinkage and simultaneous welding as well as the implementations of other related numerical techniques for further and better understanding of the welding process and its optimization would be the subjects of further publication in the future time.
