Mechanical characterization of advanced welding processes applied to DH36 butt welds

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dc.contributor.authorLevieil, Ben_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorBridier, Fen_AU
dc.contributor.authorSterjovski, Zen_AU
dc.contributor.authorvan Duin, Sen_AU
dc.date.accessioned2021-03-03T22:20:18Zen_AU
dc.date.available2021-03-03T22:20:18Zen_AU
dc.date.issued2017-01-01en_AU
dc.date.statistics2021-03-02en_AU
dc.description.abstractThe welding processes currently used in the defence shipbuilding industry are a major source of hull distortion, and may often result in costly rework. In the past decade, a number of novel welding techniques have shown the potential to reduce welding induced distortion. In particular, Tandem-Gas Metal Arc Welding (T-GMAW) may influence the distribution of residual stresses introduced by the welding and, thus, the distortion. In this study, T-GMAW and GMAW were used to fabricate 1m long butt weld specimens made of 5mm DH36 steel. A comparison of the measured out-of-plane distortion for both processes is presented in this paper. The use of T-GMAW reduced the peak longitudinal distortion by 25% and the angular distortion by 33%. The residual stresses profiles of the two processes were characterized at ANSTO using the neutron diffraction strain scanning instrument "KOWARI" and have shown very little difference between the processes. Microstructural characterization, impact toughness and hardness testing were also carried out and shown very little difference between the two processes. Furthermore, the use of T-GMAW process allowed to double the welding speed in comparison to GMAW. The use of T-GMAW for naval shipbuilding could thus allow cost savings and shortened manufacturing delays due both to a higher welding speed and a reduced amount of rework.en_AU
dc.identifier.booktitle9th Australasian Congress on Applied Mechanics (ACAM9), University of NSW, Sydney, 27-29 November 2017en_AU
dc.identifier.citationLevieil, B., Paradowska, A., Bridier, F., Sterjovski, Z., & van Duin, S. (2017). Mechanical characterization of advanced welding processes applied to DH36 butt welds.Paper presented at Proceedings of the 9th Australasian Congress on Applied Mechanics (ACAM9), Sydney, Engineers Australia, 27-29 November 2017. In 9th Australasian Congress on Applied Mechanics 2017 (ACAM 9). en_AU
dc.identifier.conferenceenddate29 November 2017en_AU
dc.identifier.conferencename9th Australasian Congress on Applied Mechanics (ACAM9)en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate27 November 2017en_AU
dc.identifier.editorsPrusty, G. & Paradowska, A.en_AU
dc.identifier.isbn9781925627022en_AU
dc.identifier.pagination469-475en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10471en_AU
dc.language.isoenen_AU
dc.publisherEngineers Australiaen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectWeldingen_AU
dc.subjectGas metal-arc weldingen_AU
dc.subjectWelded jointsen_AU
dc.subjectShipsen_AU
dc.subjectResidual stressesen_AU
dc.titleMechanical characterization of advanced welding processes applied to DH36 butt weldsen_AU
dc.typeConference Paperen_AU
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