1. P.-C. Lin, S.-H. Lin, J. Pan, T. Pan, J.M. Nicholson, M.A. Garman, Microstructures and failure mechanisms of spot friction welds in lap-shear specimens of aluminum 6111-T4 sheets, SAE Technical Paper No. 2004-01-1330, Society of Automotive Engineering, Warrendale, PA, 2004.
2. Aluminum spot weld;Thornton;Weld. J.,1996
3. Static and fatigue behavior of spot-welded 5182-0 aluminum alloy sheet;Gean;Weld. J.,1999
4. Development of spot FSW robot system for automobile body members;Sakano,2001
5. T. Iwashita, Method and apparatus for joining, US Patent 6,601,751 B2 (August 5, 2003).