Mitigation of thermal distortion in wire arc additively manufactured Ti6Al4V part using active interpass cooling

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dc.contributor.authorWu, Bintao
dc.contributor.authorPan, Zengxi
dc.contributor.authorChen, Guangyu
dc.contributor.authorDing, Donghong
dc.contributor.authorYuan, Lei
dc.contributor.authorCuiuri, Dominic
dc.contributor.authorLi, Huijun
dc.date.accessioned2020-01-28T15:39:35Z
dc.date.available2020-01-28T15:39:35Z
dc.date.issued2019-02-26
dc.description.abstractIn this study, active interpass cooling using compressed CO2 was innovatively employed in the wire arc additively manufactured Ti6Al4V process with the aim of mitigating part distortion. A comparative analysis between simulation and experimental results was performed to explore the effects of active interpass cooling on the thermal behaviours, geometric features and distortion levels of deposit. The results show that active interpass cooling with CO2 gas is an effective means of reducing Wire arc additive manufacturing (WAAM)-part distortion by increasing heat dissipation and reducing heat accumulation within the deposition. It can contribute to a maximum reduction of 81% in longitudinal distortion and 69% in transverse distortion for the wall structures produced in this study. Compared to the cooling gas flow rate, cooling time alternation is more effective in mitigating WAAM-part distortion due to more effective heat dissipation per unit time. The findings reveal that using active interpass cooling in WAAM can offer significant cost and build-time savings, as well as providing conditions for the improvement of WAAM-part quality.en_UK
dc.identifier.citationWu B, Pan Z, Chen G, et al., (2019) Mitigation of thermal distortion in wire arc additively manufactured Ti6Al4V part using active interpass cooling. Science and Technology of Welding and Joining, Volume 24, Issue 5, 2019, pp. 484-494en_UK
dc.identifier.issn1362-1718
dc.identifier.urihttps://doi.org/10.1080/13621718.2019.1580439
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15030
dc.language.isoenen_UK
dc.publisherManey Publishingen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectWire arc additive manufacturingen_UK
dc.subjectTi6Al4Ven_UK
dc.subjectactive interpass coolingen_UK
dc.subjectdistortionen_UK
dc.titleMitigation of thermal distortion in wire arc additively manufactured Ti6Al4V part using active interpass coolingen_UK
dc.typeArticleen_UK

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