TWI Digital Library

The paper comprises copies of the presentation slides which describe the development of welding experiments and equipment to provide experimental data to validate process models of the friction stir welding process. Data obtained include tool parame…

The relationship between microstructure and hardness was investigated in friction stir welded aluminium alloy 6063-T5. The alloy thickness was 6 mm. Hardness profiles were measured across the stir zone. The microstructure of the as-welded and postwe…

The feasibility of joining layers of dissimilar metals (aluminium and steel) by friction stir welding (FSW) was investigated. Aluminium (A-1050-O) was placed above steel (JIS S50C carbon steel). The tool revolution was 3000 rpm and the tool feed rat…

The development of orbital friction stir welding (FSW) technology for joining aluminium pipes for gas insulated power transmission lines (GIL) is described. The equipment is outlined: hydraulic unit, control panel, FSW head with steel wire rope and …

The influence of the process parameters on the microstructure, mechanical properties and corrosion of friction stir welded aluminium alloy 2024-T3 was investigated. Sheets of 1.6 and 4 mm thickness were welded using rotational speeds of 800-2400 rpm…

Friction stir butt welds of Al alloy (2024, 6013 and 6056) sheets (4 mm thickness) were examined by conventional ultrasonic inspection with a single focused transducer (25 MHz frequency), facilitating the detection of void-like flaws as well as the …

A description is presented of the friction stir welding (FSW) machine developed for fabrication of the external fuel tanks for the Space Shuttle. The cylindrical part of the tanks was composed of curved panels welded into barrels with welds of const…

Friction stir welds were made in the austenitic stainless steels 304L (thickness 6.4 mm (0.25 in) and 3.2 mm (0.125 in)) and the superaustenitic stainless steel AL 6XN. Welds in the 3.2 mm sheet were made in a single pass. The 6.4 mm plates were wel…

The production of aluminium alloy forged suspension parts for light-weight vehicles using circumferential friction stir welding (FSW) is considered. The suspension arm is composed of three extruded shapes (bush bracket, yoke and pipe) joined by FSW.…

The microstructure and mechanical properties of double-sided welds made by friction stir welding (FSW) in aluminium alloy AA-5083 were investigated as part of research into the use of the alloy in vessels for storing liquid hydrogen at cryogenic tem…

The relationship between microstructure and corrosion of friction stir welded joints in aluminium alloys 2024-T351 (Al, 4.43%Cu, 1.42%Mg, 0.61%Mn) and 7010-T7651 (Al, 5.92%Zn, 2.11%Mg, 1.68%Cu) was investigated. Plate of 6.35 mm (0.25 in) thickness …

Friction stir welded and TIG welded butt joints in aluminium alloy 6061 matrix B4C-reinforced (15-30% B4C) composites were compared. TIG welds were produced using a combination of aluminium alloys 4043 and 4047 as filler metal with pure Ar or a mixe…

Friction stir welding (FSW) is a solid-state joining method, being well-known to be suitable particularly in joining of aluminum in all alloy and manufacturing forms. The technological advantages of FSW can be also expanded to high-strength steel ma…

The SCIENZE (Supply Chain Innovation Engineering for Net Zero) Project aims to create a UK based supply chain that is capable of manufacturing the next generation of power electronic components at volumes higher than is currently feasible to do toda…

This study addresses the challenges of predicting joint efficiency for friction stir welding (FSW). It adopts a data driven approach, leveraging data analytics to develop accurate predictive models. A database of 1780 records from diverse aluminium …

In this study, the improvement of process stability of bobbin tool FSW for long welding length was studied. The base material used in this study was 18mm thickness 5083-O Al alloy. Floating bobbin type tools were used in this study. FSW produced def…

Bobbin-tool friction stir welding (BT-FSW) is a variant process of conventional friction stir welding with a particular tool configuration composed of an additional lower shoulder, enabling additional heat input and complete penetration of the pin. …

3-point fatigue bending tests and finite element method simulations were employed to study the fatigue performance of combined lap-butt joints fabricated by friction stir welding in 6005A-T6 alloy (Al, 0.61%Si, 0.54%Mg) extruded profiles for railway…

Dissimilar overlap joints between different aluminium alloys were fabricated by friction stir welding (FSW) and the influence of alloy composition and FSW tool type on fatigue fracture, microstructure and mechanical properties was investigated. The …

Several kinds of Co-based alloys with different mechanical properties (e.g. high temperature strength, hardness, wear resistance and gamma-solvus temperature) were designed for friction stir welding (FSW) tool applications by varying chemical compos…