TWI

The quality of friction stir welds of butt joints (including the use of inserts to simulate compensation for poor fit up) between aluminium alloys 5083-H12 (Al, 4.6%Mg, 0.6%Mn, 0.3%Si) and 6082-T6 (Al, 0.7%Mg, 0.9%Si, 0.5%Mn), was evaluated. The wel…

A feasibility study was undertaken to investigate friction stir welding of hybrid lap joints between polyphenylene sulphide and AA 6111 alloy (Al, 0.76%Mg, 0.63%Si, 0.75%Cu) sheets (thickness 2 and 1.5 mm, respectively) and the influence of process …

Microstructural examination and a root bend test were used to examine the results of friction stir welding in dissimilar welds of aluminium alloys A-5083 (Al, 4.5%Mg) and A-6N01 (Al, 0.6%Mg, 0.65%Si) of thickness 4 mm. Optimum welding parameters (to…

Samples of AA 2219 aluminium alloy (Al, 5.8-6.8%Cu, 0.2-0.4%Mn) produced by electron beam freeform fabrication (EBF3), a wire fed process for additive manufacturing, were joined by friction stir welding (FSW) and the microstructure and mechanical pr…

The joint strength of friction stir welded extruded and T6 tempered sections of 6000 series aluminium alloys (JIS 6N01, 6061, 60663 and 6082), thickness 12-20 mm, was investigated. Friction stir welding (FSW) parameters are given for one-pass and tw…

The development of a friction stir welding tool for thermoplastics, and specifically for ABS (acrylonitrile butadiene styrene terpolymer), is described. To eliminate the voids and poor mixing which resulted when sheet ABS was welded using a tool des…