2026-07-10T04:25:26Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/92962024-06-21T00:05:31Zcom_10259_4201com_10259_5086com_10259_2604com_10259_6168col_10259_4505col_10259_6169

Santiago Herrera, Mario Igos, Elorri Alegre Calderón, Jesús Manuel Martel Martín, Sonia Barros García, Rocío 2024-04 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. application/pdf http://hdl.handle.net/10259/9296 eng Elsevier Ex-ante life cycle assessment of directed energy deposition based additive manufacturing: A comparative gearbox production case study info:eu-repo/semantics/article TEXT RIUBU. Repositorio Institucional de la Universidad de Burgos Hispana