RT info:eu-repo/semantics/article
T1 Ex-ante life cycle assessment of directed energy deposition based additive manufacturing: A comparative gearbox production case study
A1 Santiago Herrera, Mario
A1 Igos, Elorri
A1 Alegre Calderón, Jesús Manuel
A1 Martel Martín, Sonia
A1 Barros García, Rocío
K1 Life cycle assessment
K1 Scale-up
K1 Ex-ante LCA
K1 Additive manufacturing
K1 Emerging technologies
K1 Eco-desing
K1 Ingeniería mecánica
K1 Mechanical engineering
AB As 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.
PB Elsevier
SN 2214-9937
YR 2024
FD 2024-04
LK http://hdl.handle.net/10259/9296
UL http://hdl.handle.net/10259/9296
LA eng
NO This 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.
DS Repositorio Institucional de la Universidad de Burgos
RD 22-dic-2024