Mécanique & Industries
Volume 6, Number 1, Janvier-Février 2005MÉCAMAT Aussois 2003 – Assemblages : des matériaux à la structure
|Page(s)||25 - 35|
|Published online||08 March 2005|
Microstructural modelling in friction stir welding of 2000 series aluminium alloys
Department of Engineering, University of Cambridge, Trumpington St, Cambridge, CB2 1PZ, UK
2 TWI, Granta Park, Cambridge, CB1 6AL, UK
Corresponding author: email@example.com
Accepted: 5 November 2004
Simple process models are applied to predict microstructural changes due to the thermal cycle imposed in friction stir welding. A softening model developed for heat-treatable aluminium alloys of the 6000 series is applied to the aerospace alloy 2014 in the peak-aged (T6) condition. It is found that the model is not readily applicable to alloy 2024 in the naturally aged (T3) temper, but the softening behaviour can still be described semi-empirically. Both analytical and numerical (finite element) thermal models are used to predict the thermal histories in trial welds. These are coupled to the microstructural model to investigate: (a) the hardness profile across the welded plate; (b) alloy softening ahead of the approaching welding tool. By incorporating the softening model applied to 6082-T6 alloy, the hardness profile of friction stir welds in dissimilar alloys is also predicted.
Key words: Friction stir welding (FSW) / modelling / aluminium alloys
© AFM, EDP Sciences, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.