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 (https://doi.org/10.1080/13621718.2019.1570682)

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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.

ORCID iDs

Ahmad, Bilal ORCID logoORCID: https://orcid.org/0000-0002-9864-4044, Galloway, Alexander ORCID logoORCID: https://orcid.org/0000-0003-0143-8314 and Toumpis, Athanasios ORCID logoORCID: https://orcid.org/0000-0003-3245-4536;
  • Item type:Article
    ID code:66591
    Dates:
    Date
    Event
    5 June 2019
    Published
    23 January 2019
    Published Online
    12 January 2019
    Accepted
    Keywords:laser-assisted friction stir welding, finite element modelling, coupled Eulerian Lagrangian, DH36, flash formation, temperature distribution, Mechanical engineering and machinery, Metals and Alloys, Mechanical Engineering
    Subjects:Technology > Mechanical engineering and machinery
    Department:Faculty of Engineering > Mechanical and Aerospace Engineering
    Depositing user: Pure Administrator
    Date deposited:16 Jan 2019 11:15
    Last modified:21 Mar 2023 02:26
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/66591
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