AA6061 aluminium alloy (Al–Mg–Si alloy) has gathered wide acceptance in the fabrication
of light weight structures requiring a high strength-to weight ratio and good corrosion
resistance. Compared to the fusion welding processes that are routinely used for joining
structural aluminium alloys, friction stir welding (FSW) process is an emerging solid state
joining process in which the material that is being welded does not melt and recast. This
process uses a non-consumable tool to generate frictional heat in the abutting surfaces. The …

Aluminum alloys have low weldability by conventional fusion welding processes. Friction stir
welding (FSW) is a promising alternative to traditional fusion welding techniques for
producing high quality aluminum joints. The quality of the welded joints is highly dependent
on the process parameters used during welding. In this research, a new approach was
developed to predict the process parameters and mechanical properties of AA6061-T6
aluminium alloy joints in terms of ultimate tensile strength (UTS). A new hybrid artificial …