Picture of UK Houses of Parliament

Leading national thinking on politics, government & public policy through Open Access research

Strathprints makes available scholarly Open Access content by researchers in the School of Government & Public Policy, based within the Faculty of Humanities & Social Sciences.

Research here is 1st in Scotland for research intensity and spans a wide range of domains. The Department of Politics demonstrates expertise in understanding parties, elections and public opinion, with additional emphases on political economy, institutions and international relations. This international angle is reflected in the European Policies Research Centre (EPRC) which conducts comparative research on public policy. Meanwhile, the Centre for Energy Policy provides independent expertise on energy, working across multidisciplinary groups to shape policy for a low carbon economy.

Explore the Open Access research of the School of Government & Public Policy. Or explore all of Strathclyde's Open Access research...

Numerical optimisation of laser assisted friction stir welding of structural steel

Ahmad, Bilal and Galloway, Alexander and Toumpis, Athanasios (2019) Numerical optimisation of laser assisted friction stir welding of structural steel. Science and Technology of Welding and Joining, 24 (6). pp. 548-558. ISSN 1362-1718

[img] Text (Ahmad-etal-STWJ2019-Numerical-optimisation-of-laser-assisted-friction-stir-welding)
Ahmad_etal_STWJ2019_Numerical_optimisation_of_laser_assisted_friction_stir_welding.pdf
Accepted Author Manuscript
Restricted to Repository staff only until 23 January 2020.

Download (2MB) | Request a copy from the Strathclyde author

    Abstract

    Significant progress has been made on the implementation of friction stir welding (FSW) in the industry for aluminium alloys. However, steel FSW and other high-temperature alloys is still the subject of considerable research, mainly because of the short life and high cost of the FSW tool. Different auxiliary energies have been considered as a means of optimising the FSW process and reducing the forces on the tool during the plunge and traverse stages, but numerical studies on steel are particularly limited. Building on the state-of-art, laser-assisted steel FSW has been numerically developed and analysed as a viable process amendment. Laser-assisted FSW increased the traverse speed up to 1500 mm min −1, significantly higher than conventional steel FSW. The application of laser assistance with a distance of 20 mm from the rotating tool reduced the reaction force on the tool probe tip up to 55% when compared to standard FSW.