Abstract:The comprehensive body of knowledge that has built up with respect to the friction stir welding (FSW) of aluminum alloys since the technique was invented in 1991 is reviewed on this paper. The basic principles of FSW are described, including metal flow and thermal history, before discussing how process parameters affect the weld microstructure and the likelihood of defects. Finally, the range of mechanical properties that can be achieved is discussed. It is demonstrated that FSW of aluminum is becoming an increasingly mature technology with numerous commercial applications.
Keywords : Friction stir welding, metal flow, process parameters, mechanical properties.
[1]. P. L. Threadgill., Terminology in friction stir welding, Science and Technology of Welding and Joining, Vol 12 , No 4, 2007, 357- 360.
[2]. M Grujicic, T He1, G Arakere, H V Yalavarthy, C-F Yen, and B A Cheeseman, Fully coupled thermomechanical finite element analysis of material evolution during friction-stir welding of AA5083, ASM International,. Materials Park, Ohio, 2003, pp. 203–211. [3]. Reynolds, AP, . "Visualisation of material flow in autogenous friction stir welds". Science and technology of welding and joining, Vol. 5 (2),2000, 120–124. Seidel, TU; Reynolds, AP, "Visualization of the Material Flow in AA2195 Friction-Stir Welds Using a Marker Insert Technique". Metallurgical and Material Transactions 32A,Vol.11, 2001, 2879–2884.
[4]. P. Surendrababu, Dr. A. Gopala krishna, Dr. Ch. Srinivasa Rao, "Material Flow Behaviour in Friction Stir Welding Process-A Critical Review on Process Parameters and Modeling Methodologies", International Journal of Emerging Technology and Advanced Engineering , Volume 3, Issue 6, June 2013,219-225.
[5]. K. COLLIGAN, Material Flow Behavior during Friction Stir Welding of Aluminum, Welding research supplement, July 1999. pp. 229s – 237s.