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Wed, 08 January, 2020
George Brooks
George Brooks

Student Name

George Brooks

Research Title

Investigation of friction stir welding in thick section aluminium alloys

Keywords

Friction stir welding, FSW, thick section, aluminium alloy, tensile testing

Sponsor

TWI

Affiliated University

Sheffield Hallam University

Supervisors

Mr Stephen Cater (TWI Ltd.), Dr Steven Magowan (Sheffield Hallam University)

Start Date

October 14, 2018

Project Outline

The primary aim of this research project is to investigate the influence on weld quality using three different friction stir welding (FSW) techniques joining a range of 50mm thickness aluminium alloys. These techniques, namely weld-flip-weld, simultaneous double sided and supported stationary shoulder, each have a different thermo-mechanical weld input and effect on the weld zone which has yet to be extensively investigated and quantified.

This project will present a range of weld quality assessments in AA5083-O, AA6082-T6 and AA7050-T7 including micro-hardness mapping, full section cross tensile testing, electron back scatter diffraction and energy dispersive x-ray spectroscopy. These results will be discussed in relation to the calculated weld energy input.