Microembossing of ultrafine grained Al: microstructural analysis and finite element modelling
Microembossing of ultrafine grained Al: microstructural analysis and finite element modelling
Ultra fine grained (UFG) Al-1050 processed by equal channel angular pressing (ECAP) and UFG Al-Mg-Cu-Mn processed by high pressure torsion (HPT) were embossed at both room temperature and 300 °C, with the aim of producing micro-channels. The behaviour of Al alloys during the embossing process was analysed using finite element (FE) modelling. The cold embossing of both Al alloys is characterised by a partial pattern transfer, a large embossing force, channels with oblique sidewalls and a large failure rate of the mould. The hot embossing is characterised by straight channel sidewalls, fully transferred patterns and reduced loads which decrease the failure rate of the mould. Hot embossing of UFG Al-Mg-Cu-Mn produced by HPT shows a potential of fabrication of microelectromechanical system (MEMS) components with micro channels.
105002-[15pp]
Qiao, Xiao Guang
7818f3c0-44d5-417d-b25c-e3ddbd533738
Bah, Mamadou T.
b5cd0f47-016f-485c-8293-5f6bf8a7ef1a
Zhang, Jiuwen
e7688df7-ee61-48ff-a860-f484d6ad4aa3
Gao, Nong
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Moktadir, Zakaria
34472668-ffda-4287-8fea-2c4f3bf1e2fa
Kraft, Michael
54927621-738f-4d40-af56-a027f686b59f
Starink, Marco J.
fe61a323-4e0c-49c7-91f0-4450e1ec1e51
1 September 2010
Qiao, Xiao Guang
7818f3c0-44d5-417d-b25c-e3ddbd533738
Bah, Mamadou T.
b5cd0f47-016f-485c-8293-5f6bf8a7ef1a
Zhang, Jiuwen
e7688df7-ee61-48ff-a860-f484d6ad4aa3
Gao, Nong
9c1370f7-f4a9-4109-8a3a-4089b3baec21
Moktadir, Zakaria
34472668-ffda-4287-8fea-2c4f3bf1e2fa
Kraft, Michael
54927621-738f-4d40-af56-a027f686b59f
Starink, Marco J.
fe61a323-4e0c-49c7-91f0-4450e1ec1e51
Qiao, Xiao Guang, Bah, Mamadou T., Zhang, Jiuwen, Gao, Nong, Moktadir, Zakaria, Kraft, Michael and Starink, Marco J.
(2010)
Microembossing of ultrafine grained Al: microstructural analysis and finite element modelling.
Journal of Micromechanics and Microengineering, 20 (10), , [105002].
(doi:10.1088/0960-1317/20/10/105002).
Abstract
Ultra fine grained (UFG) Al-1050 processed by equal channel angular pressing (ECAP) and UFG Al-Mg-Cu-Mn processed by high pressure torsion (HPT) were embossed at both room temperature and 300 °C, with the aim of producing micro-channels. The behaviour of Al alloys during the embossing process was analysed using finite element (FE) modelling. The cold embossing of both Al alloys is characterised by a partial pattern transfer, a large embossing force, channels with oblique sidewalls and a large failure rate of the mould. The hot embossing is characterised by straight channel sidewalls, fully transferred patterns and reduced loads which decrease the failure rate of the mould. Hot embossing of UFG Al-Mg-Cu-Mn produced by HPT shows a potential of fabrication of microelectromechanical system (MEMS) components with micro channels.
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Embossing_paper_to_eprint.pdf
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Submitted date: 5 March 2010
Accepted/In Press date: 19 July 2010
Published date: 1 September 2010
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 163079
URI: http://eprints.soton.ac.uk/id/eprint/163079
ISSN: 0960-1317
PURE UUID: b59d5651-c827-462c-83c0-f544ffe7256b
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Date deposited: 03 Sep 2010 08:02
Last modified: 14 Mar 2024 02:45
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Contributors
Author:
Xiao Guang Qiao
Author:
Jiuwen Zhang
Author:
Zakaria Moktadir
Author:
Michael Kraft
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