1. W.M. Thomas, E.D. Nicholas, J.C. Needham, M.G. Murch, P. Templesmith, C.J. Dawes, G.B. Patent Application No. 9125978.8 (December 1991).
2. Friction stir welding and processing;Mishra;Mater. Sci. Eng. R,2005
3. Friction Stir Welding and Processing;Mishra,2014
4. Material flow behavior during friction stir welding of aluminum;Colligan;Weld. J.,1999
5. Flow patterns during friction stir welding;Guerra;Mater. Char.,2003