Laser spot welding of laser textured steel to aluminium

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dc.contributor.authorPardal, Goncalo
dc.contributor.authorMeco, Sonia
dc.contributor.authorDunn, Andrew
dc.contributor.authorWilliams, Stewart W.
dc.contributor.authorGanguly, Supriyo
dc.contributor.authorHand, Duncan P.
dc.contributor.authorWlodarczyk, Krystian L.
dc.date.accessioned2016-12-06T10:58:14Z
dc.date.available2016-12-06T10:58:14Z
dc.date.issued2017-03
dc.description.abstractLaser welding of dissimilar metals (steel and aluminium) was investigated with the aim to increase the maximum tensile shear load of the Fe-Al joints. The increase was achieved by texturing the surface of steel prior to the laser spot welding process which was performed in a lap-joint configuration with the steel positioned on top of the aluminium and with a texture faced down to the aluminium surface. This configuration enabled an increase of the bonding area of the joints, because the molten aluminium filled in the gaps of the texture, without the need of increasing the process energy which typically leads to the growth of the intermetallic compounds. Different textures (containing hexagonally arranged craters, parallel lines, grid and spiral patterns) were tested with different laser welding parameters. The Fe-Al joints obtained with the textured steel were found to have up to 25% higher maximum tensile-shear load than the joints obtained with the untextured steel.en_UK
dc.identifier.citationPardal G, Meco S, Dunn A, et al., Laser spot welding of laser textured steel to aluminium. Journal of Materials Processing Technology,Volume 241, March 2017, pp. 24–35en_UK
dc.identifier.cris15703239
dc.identifier.issn0924-0136
dc.identifier.urihttp://dx.doi.org/10.1016/j.jmatprotec.2016.10.025
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11087
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectLaser processingen_UK
dc.subjectLaser texturingen_UK
dc.subjectLaser spot weldingen_UK
dc.subjectSurface modificationen_UK
dc.subjectDissimilar metalsen_UK
dc.titleLaser spot welding of laser textured steel to aluminiumen_UK
dc.typeArticleen_UK

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