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Measurement and prediction of machining induced redistribution of residual stress in the aluminium alloy 7449

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Show simple item record Robinson, J.S. Tanner, David A. Truman, C.E. Wimpory, R.C. 2014-04-15T13:08:59Z 2014-04-15T13:08:59Z 2011
dc.identifier.citation Robinson, JS; Tanner, DA; Truman, CE; Wimpory, RC (2011) 'Measurement and Prediction of Machining Induced Redistribution of Residual Stress in the Aluminium Alloy 7449'. Experimental Mechanics,51 (6):981-993. en_US
dc.description peer-reviewed en_US
dc.description.abstract The residual stress distributions in two 7449 aluminium alloy rectilinear blocks have been determined using neutron diffraction. Heat treatment included cold water immersion quenching and a period of precipitation hardening. Quenching induced very high magnitude residual stresses into the two blocks. One block was measured in this condition while the other was incrementally machined by milling to half thickness. Neutron diffraction measurements were made on the milled half thickness block at equivalent locations to the unmachined block. This permitted through thickness measurements from both blocks to be compared, revealing the redistribution of residual stresses induced by machining. A square cross section post in the centre of the machined face was left to act as a stress free reference sample. The distortions arising on the face opposite to that being milled were measured using a co-ordinate measuring machine. The residual stresses and distortion arising in the blocks have been compared to finite element analysis prediction and found to generally agree. Material removal only caused distortion and the residual stresses to redistribute; there was no stress relaxation evident. en_US
dc.language.iso eng en_US
dc.publisher Springer en_US
dc.relation.ispartofseries Experimental Mechanics;51, pp. 981-993
dc.rights The original publication is available at en_US
dc.subject residual stress en_US
dc.subject aluminium alloy en_US
dc.subject neutron diffraction en_US
dc.subject machining en_US
dc.subject relaxation en_US
dc.title Measurement and prediction of machining induced redistribution of residual stress in the aluminium alloy 7449 en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US 2013-11-29T16:44:43Z
dc.description.version Accepted
dc.contributor.sponsor ERC en_US
dc.relation.projectid AST4-CT-2005-5160078 en_US
dc.relation.projectid R113-CT-2003-505925 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1133777
dc.internal.copyrightchecked Yes
dc.description.status peer-reviewed

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