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    The role of stirring time on the metallurgical and mechanical properties during modified friction stir clinching of AA6061-T6 and AA7075-T6 sheets

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    Publication date
    2020-12
    Author
    Memon, S.
    Paidar, M.
    Ojo, O.O.
    Cooke, Kavian O.
    Babaei, B.
    Masoumnezhad, M.
    Keyword
    Modified friction stir clinching
    AA7075-T6 aluminum alloy
    AA6061-T6 aluminum alloy
    Stirring time
    Mode fracture
    Mechanical properties
    Rights
    (c) 2020 Elsevier. This is an Open Access article distributed under the Creative Commons CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/)
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    In this study, the modified friction stir clinching process was successfully utilized to weld the AA7075-T6 to AA6061-T6 aluminum alloys. The approach of this study was to appraise the influence of the stirring time (6, 12, and 18 s) on the metallurgical and mechanical behavior of the welded samples. The microstructural study demonstrated that stirring time significantly affected joint properties and material flow, which can be ascribed to the discrepancy in the properties of the Al alloys used in this study. Void, local melting and defect-free joints were produced under the stirring times of 6 s, 18 s, and 12 s respectively. It was found that tensile/shear strength increased significantly from 63.5 MPa to 109 MPa as the stirring time increased from 6 s to 12 s, while a further increase in the stirring time to 18 s significantly decreased the joint's strength to 76.1 MPa. The observed failed samples showed that stirring time did not influence fracture mode.
    URI
    http://hdl.handle.net/10454/18195
    Version
    Published version
    Citation
    Memon S, Paidar M, Ojo OO et al (2020) The role of stirring time on the metallurgical and mechanical properties during modified friction stir clinching of AA6061-T6 and AA7075-T6 sheets. Results in Physics. 19: 103364.
    Link to publisher’s version
    https://doi.org/10.1016/j.rinp.2020.103364
    Type
    Article
    Collections
    Engineering and Informatics Publications

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