Influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of Aluminium 6061

Burnishing is a cold working, surface treatment process in which plastic deformation of surface irregularities occurs by exerting pressure through a very hard and smooth roller or ball on a surface to generate a uniform and work-hardened surface. In this study, a simple burnishing tool, with interch...

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Main Authors: ELTAYEB, N, LOW, K, BREVERN, P
Format: Article
Published: Engineering 2007
Subjects:
Online Access:http://shdl.mmu.edu.my/3057/
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author ELTAYEB, N
LOW, K
BREVERN, P
author_facet ELTAYEB, N
LOW, K
BREVERN, P
author_sort ELTAYEB, N
building MMU Institutional Repository
collection Online Access
description Burnishing is a cold working, surface treatment process in which plastic deformation of surface irregularities occurs by exerting pressure through a very hard and smooth roller or ball on a surface to generate a uniform and work-hardened surface. In this study, a simple burnishing tool, with interchangeable adapter for ball and roller were designed and fabricated to perform roller burnishing processes on Aluminium 6061 under different parameters and different burnishing orientations. The impact of burnishing speed, burnishing force and burnishing tool dimension on the surface qualities and tribological properties were investigated. It was found that burnishing speed of 330 rpm and burnishing force of 212N is capable of improving surface roughness as much as 40%. However, an increase in the roller contact width leads to less improvement in the surface roughness. Meanwhile, roller burnishing also enhance the hardness of burnished Aluminium 6061 by 20-30%. In tribo-test, burnished surface using small roller produces the lowest friction coefficient under dry contact condition. A substantial decrease in the friction coefficient and weight loss was obtained under lubricated contact condition. Furthermore, a 46% reduction in the friction coefficient was obtained when sliding took place in the direction parallel to burnishing orientation. These findings are further supplemented by SEM photomicrographs of tested surfaces. (c) 2006 Elsevier B.V. All rights reserved.
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spelling mmu-30572011-09-29T04:05:15Z http://shdl.mmu.edu.my/3057/ Influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of Aluminium 6061 ELTAYEB, N LOW, K BREVERN, P T Technology (General) QA75.5-76.95 Electronic computers. Computer science Burnishing is a cold working, surface treatment process in which plastic deformation of surface irregularities occurs by exerting pressure through a very hard and smooth roller or ball on a surface to generate a uniform and work-hardened surface. In this study, a simple burnishing tool, with interchangeable adapter for ball and roller were designed and fabricated to perform roller burnishing processes on Aluminium 6061 under different parameters and different burnishing orientations. The impact of burnishing speed, burnishing force and burnishing tool dimension on the surface qualities and tribological properties were investigated. It was found that burnishing speed of 330 rpm and burnishing force of 212N is capable of improving surface roughness as much as 40%. However, an increase in the roller contact width leads to less improvement in the surface roughness. Meanwhile, roller burnishing also enhance the hardness of burnished Aluminium 6061 by 20-30%. In tribo-test, burnished surface using small roller produces the lowest friction coefficient under dry contact condition. A substantial decrease in the friction coefficient and weight loss was obtained under lubricated contact condition. Furthermore, a 46% reduction in the friction coefficient was obtained when sliding took place in the direction parallel to burnishing orientation. These findings are further supplemented by SEM photomicrographs of tested surfaces. (c) 2006 Elsevier B.V. All rights reserved. Engineering 2007-05 Article NonPeerReviewed ELTAYEB, N and LOW, K and BREVERN, P (2007) Influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of Aluminium 6061. Journal of Materials Processing Technology, 186 (1-3). pp. 272-278. ISSN 09240136 http://dx.doi.org/10.1016/j.jmatprotec.2006.12.044 doi:10.1016/j.jmatprotec.2006.12.044 doi:10.1016/j.jmatprotec.2006.12.044
spellingShingle T Technology (General)
QA75.5-76.95 Electronic computers. Computer science
ELTAYEB, N
LOW, K
BREVERN, P
Influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of Aluminium 6061
title Influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of Aluminium 6061
title_full Influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of Aluminium 6061
title_fullStr Influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of Aluminium 6061
title_full_unstemmed Influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of Aluminium 6061
title_short Influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of Aluminium 6061
title_sort influence of roller burnishing contact width and burnishing orientation on surface quality and tribological behaviour of aluminium 6061
topic T Technology (General)
QA75.5-76.95 Electronic computers. Computer science
url http://shdl.mmu.edu.my/3057/
http://shdl.mmu.edu.my/3057/
http://shdl.mmu.edu.my/3057/