1. Thomas W M, Nicholas J C, et al. (1991), “Friction Stir Butt Welding”, International patent application, No. PCT/GB92/02203 and GB patent application, No. 9125978.8.
2. Rhodes C G, Mahoney M W, et al. (1997), “Effect of Friction Stir Welding on Micro structure of 7075”Ahurfinum.ScriptaMaterialia,36(1): pp. 69–75.
3. Dawes C J, Thomas W M. (1996), “Friction Stir Process Welds aluminium Alloys”, Welding Journal (Miami, Fla), 75(3): pp. 41–45.
4. Introduction to Friction Stir Welding and Its Development;Dawes;Welding and Metal Fabrication,1995
5. Manoj Kumar Shiva raj and Vijay Dinakaran, et al. (2010), “Frictional Stir Welding on aluminium Alloys AA2014-T4 and AA7075-T6”International Conference on Computer Engineering and Technology, Vol. 5, pp. 1–5.