English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Friction stir spot welding of dissimilar aluminium alloys using the three-flat tool is carried out in order to investigate the effects of probe geometry on mechanical properties. The failure loads in A5754/A6111 lap joints made using a three-flat 0.5 mm no-thread tool were always higher than the joints made using a three-flat 0.5 mm threaded tool. Material flows due to the shear deformations were observed in the stir zone of A5754/A6111 and A5052/A6061 lap joints made using the three-flat tools. In addition, the bonded and stir zone widths in A5052/A6061 lap joints made using a three-flat 0.7 mm no-thread tool (in which the arc lengths of the triangular vertex region in the cross-section of probe were shortened) were always smaller than the joints made using a three-flat 0.5 mm no-thread tool. Therefore, it is suggested that there are pressures in a horizontal direction which are produced by the triangular vertex regions on the probe.

Influence of Probe Geometry on the Mechanical Properties of Dissimilar Al-alloy Friction Stir Spot Welds