TWI Digital Library

Additive friction surfacing (AFS) is a variant of friction surfacing (FS) where multiple layers of feedstock material can be deposited to generate a near-net shape part. AFS has the potential to yield significantly higher deposition rates than tradi…

In relation to the production of local metal matrix composites (MMCs) by friction stir processing (FSP), an investigation was undertaken into the influence of tool geometry and process parameters on the shape of the nugget zone and the assessment of…

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…

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-…

Friction stir welded joints, produced in an extruded profile of aluminium alloy 6082-T6 using run on and run off plates, were evaluated by measurement of mechanical properties. Plate of 6 mm thickness was welded using a range of process parameters, …

A discussion is presented on research studies carried out to develop friction stir welding (FSW) as a method for the production of thick (50.8-76.2 mm; 2-3 in) aluminium alloy 7050 tailored blanks suitable for use in the aerospace industry. Single r…