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Effect of rotational material flow on temperature distribution in friction stir welds

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Simar, Aude [UCL] Pardoen, Thomas [UCL] de Meester, B.

A finite element pseudosteady state thermal model takes the mechanical power as input data while distributing the total power input between surface and volume heat sources. A simple model for the material flow around the tool has been developed in order to take heat convection into account based on the shape of the thermomechanically affected zone. The model is assessed for a large number of different welding parameters. Special attention is given to the type of contact at the tool/workpiece interface, i.e. sliding, sticking or both and at the workpiece backing plate interface. The rotational material flow creates asymmetry in the temperature distribution between the two sides of the weld.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 2007
Language Anglais
Journal information "Science and Technology of Welding and Joining" - Vol. 12, no. 4, p. 324-333 (2007)
Peer reviewed yes
Publisher Maney Publishing (Leeds)
issn 1362-1718
e-issn 1743-2936
Publication status Publié
Affiliation UCL - FSA/MAPR - Département des sciences des matériaux et des procédés
Keywords friction stir welding ; modelling ; thermal history ; rotational material flow ; asymmetry
Links
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Bibliographic reference Simar, Aude ; Pardoen, Thomas ; de Meester, B.. Effect of rotational material flow on temperature distribution in friction stir welds. In: Science and Technology of Welding and Joining, Vol. 12, no. 4, p. 324-333 (2007)
Permanent URL http://hdl.handle.net/2078.1/37309