1. Thomas WM, Temple-Smith P (TWI, rights transferred to Lead Sheet Association): 'Friction welding sheet material'. UK Patent Application GB 2 319 977 A.
2. Nasution AK, Gustami H, Suprastio S, Fadillah MA, Octavia J, Saidin S (2022) Potential use of friction welding for fabricating semi-biodegradable bone screws. Int J Automot Mech Eng 19:9660–9667
3. Rhodes CG, Mahoney MW, Bingel WH (1997) Effects of friction stir welding on microstructure of 7075 aluminum. ScriptaMaterialia 36(1):69–75
4. Hagstrom J, Sandstrom R (1998) Static and dynamic properties of joints in thin-walled aluminum extrusions, welded with different methods. Proceedings of 6th International Conference on Aluminum Alloys, Toyohashi, Japan, pp.1447–1452.
5. Hashimoto T, Nishikawa N Tazaki S, Enomoto M (1998) Mechanical properties of joints for aluminum alloys with friction stir welding process. Proceedings of 7th International Conference on Joints in Aluminum, Cambridge, UK, 15–17 April 1998.