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dc.contributor.authorSantiago Herrera, Mario 
dc.contributor.authorIgos, Elorri
dc.contributor.authorAlegre Calderón, Jesús Manuel 
dc.contributor.authorMartel Martín, Sonia 
dc.contributor.authorBarros García, Rocío 
dc.date.accessioned2024-06-20T08:15:40Z
dc.date.available2024-06-20T08:15:40Z
dc.date.issued2024-04
dc.identifier.issn2214-9937
dc.identifier.urihttp://hdl.handle.net/10259/9296
dc.description.abstractAs new technologies emerge is necessary to assess if they can actually contribute to sustainable improvement of industrial processes. Life Cycle Assessment (LCA) is a valuable tool to determine environmental impacts and compare systems. However, this comparison raises challenges when they have different maturity. This paper performs ex-ante LCA of an additive manufacturing (AM) technology, based on a step-wise approach built with parametrized modelling, allowing fair comparison with its conventional counterpart, for the study case of a gearbox component. Results show that AM technology generates higher impacts than conventional manufacturing (CM) casting process, using baseline values. These impacts can be reduced by 94% with best operating performances from literature, with emissions from 4520 to 264 kg CO2 eq./kg piece, and non-significant difference with CM (demonstrated by Monte Carlo sampling). A 58% weight reduction is necessary for the AM process to improves its environmental sustainability. This research provides eco-design recommendations supporting decision making for further development of new technology.en
dc.description.sponsorshipThis research has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (Grant Agreement No. 814552) in the context of the LightMe project. In this context, authors especially acknowledge the help from IRIS and DIAD. It has also received funds from Board of Education of Junta de Castilla y León and the European Social Fund (EDU/1508/2020). The authors want to acknowledge the support of the Environmental Research and Innovation department from the Luxembourg Institute of Science & Technology for facilitate the research stay that made this work possible.en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieren
dc.relation.ispartofSustainable Materials and Technologies. 2024, V. 39, e00819es
dc.rightsAtribución-NoComercial 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectLife cycle assessmenten
dc.subjectScale-upen
dc.subjectEx-ante LCAen
dc.subjectAdditive manufacturingen
dc.subjectEmerging technologiesen
dc.subjectEco-desingen
dc.subject.otherIngeniería mecánicaes
dc.subject.otherMechanical engineeringen
dc.titleEx-ante life cycle assessment of directed energy deposition based additive manufacturing: A comparative gearbox production case studyen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1016/j.susmat.2023.e00819es
dc.identifier.doi10.1016/j.susmat.2023.e00819
dc.journal.titleSustainable Materials and Technologiesen
dc.volume.number39es
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones


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