Zobrazeno 1 - 8 of 8 pro vyhledávání: '"Andrew David Wescott"'
1
Rolling to control residual stress and distortion in friction stir welds
Autor: Wen Shuwen, Andrew David Wescott, M. Poad, Paul A. Colegrove, Stewart W. Williams, S A Morgan
Publikováno v: Science and Technology of Welding and Joining. 15:440-447
Considerable residual stress and distortion can be produced by friction stir welding, impeding industrial implementation. Finite element analysis has been used to develop three innovative rolling methods that reduce residual stress and distortion in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a786d5d6d9768d0f81aac96ebc7620c
https://doi.org/10.1179/136217110x12785889549787
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2
Distortion control in welding by mechanical tensioning
Autor: Axel Steuwer, D. A. Price, Stewart W. Williams, A. Rezai, P. Staron, Andrew David Wescott, C. J. C. Harrison, Matthew J Peel, M. Koçak
Publikováno v: Science and Technology of Welding and Joining. 12:620-633
This paper investigates the potential of mechanical tensioning (MT) to reduce the magnitude of residual stresses in welds and to eliminate buckling distortion. Both friction stir (FSW) and arc welds have been produced from the aluminium alloy AA2024,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8b34218195ec31e93edece8e100568b4
https://doi.org/10.1179/174329307x213864
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3
FE Modelling of Mechanical Tensioning for Controlling Residual Stresses in Friction Stir Welds
Autor: Stewart W. Williams, D.G. Richards, Andrew David Wescott, Philip B. Prangnell, E.C. Oliver, Philip J. Withers
Publikováno v: Materials Science Forum. :4025-4030
Although Friction Stir Welding (FSW) avoids many of the problems encountered when fusion welding high strength Al-alloys, it can still result in substantial residual stresses that have a detrimental impact on service life. An FE model has been develo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2ca91981a04f11d577f2729c85ceb479
https://doi.org/10.4028/www.scientific.net/msf.539-543.4025
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4
Integration of Deformation Processing with Additive Manufacture of Ti-6A1-4V Components for Improved β Grain Structure and Texture
Autor: Andrew David Wescott, Jagjit Sidhu, Phillip Prangnell, Jack Donoghue
Publikováno v: TMS2015 Supplemental Proceedings ISBN: 9781119093466
TMS2015 Supplemental Proceedings
With Ti alloys like Ti-6Al-4V, the solidification conditions across virtually all AM platforms lead to strongly textured, coarse columnar, β grain structures. Transformation to α on cooling dilutes the texture, but significant texture is still inhe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d132a9f62f51bf43c0e5e177f0d6e309
https://doi.org/10.1002/9781119093466.ch55
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5
Geometry Effects when Controlling Residual Stresses in Friction Stir Welds by Mechanical Tensioning
Autor: Philip J. Withers, E.C. Oliver, D.G. Richards, Andrew David Wescott, Philip B. Prangnell, Stewart W. Williams
Publikováno v: Richards, D G, Prangnell, P B, Withers, P, Williams, S W & Wescott, A 2006, ' Geometric Effects when Controlling Residual Stresses in Friction Stir Welds by Mechanical Tensioning, ', Mat. Sci. Forum, vol. 524-525, pp. 71-76 . https://doi.org/10.4028/www.scientific.net/MSF.524-525.71
Finite element modelling has proved to be an effective tool for the investigation of trends effected by changing welding conditions. This is especially important in mechanical tensioning of friction stir welds because of the large number of parameter
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::226d6b7a130979f7757216621e6a8a65
https://doi.org/10.4028/www.scientific.net/msf.524-525.71
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7
Characterisation of residual stress state and distortion in welded plates stress engineered by local mechanical tensioning
Autor: Stewart W. Williams, T. Nagy, Supriyo Ganguly, Andrew David Wescott, Paul A. Colegrove
Local mechanical tensioning is one of the most efficient and industrially relevant stress engineering techniques to modify weld residual stress field and subsequently reduce buckling distortion. However, application of rolling load and its magnitude
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ae5056b291777b38c46031145087f85
http://dspace.lib.cranfield.ac.uk/handle/1826/8517
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8
The development of direct write technology in BAE Systems
Autor: S A Morgan, E.J. O'Driscoll, Andrew David Wescott, Jagjit Sidhu, Jennifer Laura Mcdonald
Publikováno v: SPIE Proceedings.
Direct Write (DW) is an emerging group of technologies that allow printing of electronic and other functional components out of vacuum, directly onto structural parts and assemblies. With its ability to deposit a wide range of dissimilar materials, a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8e23b4c0f05c281bc538f2499490204a
https://doi.org/10.1117/12.668996
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