TWI Digital Library

Models were developed for the temperature distribution and material flow during friction stir welding. Both friction and material shearing were presumed to generate heat, and finite element analysis was used to determine the temperature distribution…

The friction stir welding of chromium steel (12%Cr) and of the dissimilar combination of chromium steel with low carbon steel were investigated, and the process economics compared with those of MMA, MIG and submerged arc welding. Welds were made in …

In relation to the application of friction stir welding (FSW) to the production of metallic aircraft fuselages, a report is presented into the evolution of the MUVAX (multi use vacuum assisted exoskeleton) concept within the framework of the LuFo V-…

Friction stir welding (FSW) is broadly recognized as an efficient solid-state welding technology to join light metal alloys and is worth considering expanding its technological benefits for joining materials with different chemical compositions and …

An investigation was undertaken to examine the use of an industrial serial robot incorporating dual loop force/position control to reduce the investment cost and increase process flexibility in friction stir welding (FSW) by compensating the lateral…

An investigation is presented into a systematic model based, real time process monitoring framework to analyse the performance and behaviour of the friction stir welding (FSW) process and into the framework's ability to predict weld quality threshol…

An experimental procedure based on a Gleeble 3500 thermomechanical testing system was developed to investigate hot deformation parameters in the high temperature range for application to friction welding related processes. Experiments were conducted…

Aluminium alloy A6N01-T5 (Al, 0.63%Mg, 0.53%Si) hollow extrusions suitable for joining by friction stir welding, to be used in the generation of Japanese railway rolling stock, were designed, and the static and fatigue tensile strength of joints wer…

Ultrafine grained test pieces of aluminium, copper and steel produced by the accumulative roll bonding process were friction stir butt welded at various revolutionary pitches, and the microstructures and mechanical properties (tensile strength, Vick…

A feasibility study was undertaken to investigate the use of friction stir welding to join B4C particle reinforced Al metal matrix composite plates (thickness 8 mm) that form the neutron absorber tubes of the basket of a spent nuclear fuel cask. Wel…

Experiments were undertaken to investigate the evolution of welding forces and torque generated during robotic friction stir welding of circular and semicircular butt welds in 6082-T651 aluminium alloy plates (thickness 6 mm). Welding was performed …

Butt joints were fabricated between A6063 aluminium alloys and S45C mild steel by friction stir welding (FSW) and the effect of material flow on the weld interface formation was investigated using the stop action technique. FSW experiments were unde…

A combination of laser surfacing and friction stir processing (FSP) was employed to modify a cold-worked AISI D2 tool steel (1.5%C, 11%Cr, 0.83%Mo, 0.36%V) with the aim of clarifying the FSP conditions required to obtain a microstructure with unifor…

Metallographic observations, hardness distribution measurements and fatigue tests were undertaken to investigate the discontinuity state related to the crack nucleation site in butt joints fabricated in 2024-T3 aluminium alloys (Al, 3.8-4.9%Cu, 1.2-…

Various dissimilar butt joints were fabricated between 2017A-T451 (Al, 4.14%Cu, 0.72%Mg), 6082-T6 (Al, 1.03%Mg, 0.92%Si) and AlSi9Mg (Al, 8.6%Si, 0.31%Mg) aluminium alloys by friction stir welding using a high pin tool rotational speed (1400 or 1800…