Aluminum

Experimental characterization of metal matrix composite with aluminium matrix and Molybdenum powders as reinforcement

This paper is on the successful fabrication of Metal Matrix Composite (MMC) using an Aluminium plate and Molybdenum powder by Friction Stir Process (FSP). The aim was to produce a superficial MMC layer on the Al plate in order to increase the …

Load Bearing Capacity of Tool Pin during Friction Stir Welding

Although friction stir welding (FSW) is now widely used for the welding of aluminum and other soft alloys, premature tool failure limits its application to hard alloys such as steels and titanium alloys. The tool pin, the weakest component of the …

Tool durability maps for friction stir welding of an aluminium alloy

Friction stir welding is not used for hard alloys because of premature tool failure. A scheme is created that exploits th physical three-dimensional heat and mass flow models, and implements them into a fast calculation algorithm, which, when combine …

Toward optimum friction stir welding tool shoulder diameter

Currently friction stir welding tools are designed by trial and error. Here we propose and test a criterion for the design of a tool shoulder diameter based on the principle of maximum utilization of supplied torque for traction. The optimum tool …

Strains and strain rates during friction stir welding

Strains experienced by materials during friction stir welding (FSW) are important but scarce in the literature. Here we report the computed strains and strain rates during FSW of AA2524 from a three-dimensional coupled viscoplastic flow and heat …

Torque, Power Requirement and Stir Zone Geometry in Friction Stir Welding through Modeling and Experiments

The torque, power requirement and stir zone geometry during friction stir welding of AA2524 aluminum alloy were modeled by solving the equations of conservation of mass, momentum and energy. The model predictions agreed well with the corresponding …