dc.contributor.author | Pérez Ruiz, José David | |
dc.contributor.author | Marin, Felipe | |
dc.contributor.author | Martínez Rodríguez, Silvia | |
dc.contributor.author | Lamikiz Mentxaka, Aitzol | |
dc.contributor.author | Urbicain Pelayo, Gorka | |
dc.contributor.author | López de Lacalle Marcaide, Luis Norberto | |
dc.date.accessioned | 2024-02-08T09:14:22Z | |
dc.date.available | 2024-02-08T09:14:22Z | |
dc.date.issued | 2021-12-24 | |
dc.identifier.citation | Mechanical Systems and Signal Processing 168: (2022) // Article ID108675 | es_ES |
dc.identifier.issn | 1096-1216 | |
dc.identifier.issn | 0888-3270 | |
dc.identifier.uri | http://hdl.handle.net/10810/64969 | |
dc.description.abstract | [EN] Additive manufacturing of metallic parts has witnessed significant development. The laser powder bed fusion (LPBF) process has emerged as a key process for manufacturing thin-walled components. However, despite the significant advances, post-machining operations are required for the improvement of dimensional and surface quality, specifically in low stiffness components. This study proposed an iterative design methodology for improving the stiffness of such LPBF components. In the first stage, an initial assessment of the machining conditions was performed to obtain a first approach to the relationship between tooth passing, natural, and chatter frequencies. Thereafter, a method to improve Young's modulus was proposed by evaluating the elastic anisotropy of different manufacturing configurations. Furthermore, LPBF lateral stiffeners were included in the workpiece design, thereby converting the final workpiece into a temporary assembly. The proposed methodology was applied in a case study for finishing thin-walled bent ducts and a comparison for surface quality between stiffened and non-stiffened ducts using the proposed methodology was conducted. A significant roughness and cutting force reduction (≈50%) were obtained for the stiffened duct. | es_ES |
dc.description.sponsorship | The authors are grateful to Basque government group IT IT1337-19 and Ministry of Mineco PID2019-109340RB-I00 and to UE H2020 FETOPEN19/04, Analysis, Design, and Manufacturing using Microstructures. This research was partially funded by “Pasaporte a la Ciencia” – ICETEX- Line of focus: health, challenge 3 “Scientific and technological development for timely treatment” , Colfuturo scholarship grant,and the National Council for Scientific and Technological Development – CNPq. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/FETOPEN19/04 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | lpbf | es_ES |
dc.subject | inconel 718 | es_ES |
dc.subject | anisotropy | es_ES |
dc.subject | machining | es_ES |
dc.subject | multiobjective optimisation | es_ES |
dc.subject | stiffness | es_ES |
dc.subject | mechanical properties | es_ES |
dc.title | Stiffening near-net-shape functional parts of Inconel 718 LPBF considering material anisotropy and subsequent machining issues | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license | es_ES |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0888327021009985 | |
dc.identifier.doi | 10.1016/j.ymssp.2021.108675 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Ingeniería mecánica | es_ES |
dc.departamentoeu | Ingeniaritza mekanikoa | es_ES |