TWI Digital Library

The development and experimental validation of a finite element model ("DEFORM-3D" software) for friction stir welding (FSW) of 7XXX series aluminium alloys (e.g. AA-7075) with varying pin angle and advancing speed are described, and application of …

An investigation is presented into the joint efficiency and tensile properties of welded joints in various structural aluminium alloys prepared by friction stir welding (FSW), looking at the effects of compositional differences in the parent metals …

A presentation is made of a successful demonstration of the friction stir welding (FSW) of steel capabilities in a shipyard production facility, summarising the equipment, fixturing and tooling requirements. HSLA-65 steel panels (17m x 2.4m), 6mm th…

A friction stir welding (FSW) process based on the use of a self-reacting pin tool (SRPT) was developed for the joining of solid and hollow extrusions for aluminium railway car body structures; the mechanical properties of welded joints were investi…

Butt joints were fabricated in AA 2219-T87 aluminium alloy panels (thickness 6.35 mm) by friction stir welding (FSW), and force data collected during welding were analysed using an unsupervised matched filter technique to classify weldment segments …

Friction stir spot welding (FSSW) was employed to fabricate lap joints in hot extruded AZ31 magnesium alloy sheets (thickness 2 mm), and the effect of introducing nanostructured SiC particles (mean size 40 nm) on the microstructure and mechanical pr…

The development of a novel friction stir welding (FSW) monitoring for the in-process collection of tool force data is reported. The concept and features of this Advanced Rotating Tool Environment Monitoring and Information system (Artemis), based ar…

With regard to the development of a hybrid structure tool holder to facilitate chatter vibration suppression in metal cutting processes, an investigation was undertaken into the use of friction stir girth welding (FSGW) to fabricate dissimilar joint…

Microstructural observations and mechanical tests were undertaken to investigate the phase transformation behaviour of low alloy Cr-Mo steel (0.2%C, 0.61%Mn, 1.07%Cr, 0.16%Mo) sheets (thickness 1.6 mm) during friction stir welding. Stir-in-plate typ…

An investigation is presented into the processing window for friction stir welding (FSW) of Formall 545 (equivalent to AA-5083) to age-hardened AA-6082 aluminium alloys with regard to tool rotation and traverse speeds, and into an evaluation of a nu…

5083-O aluminium alloy sheets (thickness 3 mm) were butt welded using a gate-type friction stir welding (FSW) machine to investigate tolerance to deviations in butt-line/tool-travel line, gap spacing and tool roll angle, and the welded joints were e…

In relation to the application of tailor welded blanks of aluminium alloys to the vehicle weight reduction process, an investigation is presented into the precipitation sequence in friction stir welded 6016 alloy sheets (thickness 2 mm) during a pai…

An experimental study was conducted to measure the torque of friction stir welded cast aluminium A356 (Al, 7%Si, 0.3%Mg) over a range of travel and rotational speeds. Plates of 6.35 mm thickness were FSW using travel speeds and rotational speeds ran…

The weldability of zirconium-titanium alloy joints fabricated by means of friction stir welding (FSW) was investigated. Sheets (thickness 3 mm) of Zr-Ti alloy (Zr, 41%Ti, 4%Al, 3%V) underwent FSW with a tungsten-rhenium alloy (W, 25%Re) tool with an…

With regard to the development of Al-Mg-Sc alloys for aerospace applications, an investigation is presented into friction stir welding (FSW) of thick plates (thickness 35 mm) and thick-walled pipes made from 1570C alloy (Al, 5.7%Mg, 0.29%Mn, 0.2%Sc,…

Bead-on-plate welds were fabricated in S31254 superaustenitic stainless steel (19.82%Cr, 17.78%Ni, 6.13%Mo) plates (thickness 6 mm) using friction stir welding (FSW) and their microstructure and texture evolution were studied by high resolution elec…

An investigation is presented into the influence of friction stir welding (FSW) process parameters (tool rotation speed and feed rate) on the mechanical properties and microstructure of welded joints of AA2095 (Al, 4.6%Cu, 1.14%Li) in as-welded and …

A description is presented of the process flow of a production job based on friction stir welding (FSW) for the serial production of aluminium drying trays for the food industry. FSW joint quality issues (joint impermeability, weld surface quality a…

Technology improvements and process innovations in respect of friction stir welding (FSW) of high temperature materials are reviewed, welding process conditions and mechanical properties of completed welds for various alloys using polycrystalline cu…

An experimental study was carried out to investigate friction stir welded lap joints in AA-6082 aluminium alloy sheets in order to determine methods to improve weld quality; the experiments were performed using two different types of probe, the MX-T…