Analysis of the Part Distortions for Inconel 718 SLM: A Case Study on the NIST Test Artifact
dc.contributor.author | Martínez Rodríguez, Silvia | |
dc.contributor.author | Ortega Rodríguez, Naiara | |
dc.contributor.author | Celentano, Diego | |
dc.contributor.author | Sánchez Egea, Antonio José | |
dc.contributor.author | Ukar Arrien, Eneko | |
dc.contributor.author | Lamikiz Mentxaka, Aitzol | |
dc.date.accessioned | 2020-12-14T13:23:28Z | |
dc.date.available | 2020-12-14T13:23:28Z | |
dc.date.issued | 2020-11-11 | |
dc.identifier.citation | Materials 13(22) : (2020) // Article ID 5087 | es_ES |
dc.identifier.issn | 1996-1944 | |
dc.identifier.uri | http://hdl.handle.net/10810/48972 | |
dc.description.abstract | The present paper evaluates the misalignment and geometry distortion of the standard National Institute of Standards and Technology (NIST) test artifact in Inconel 718 alloy, when several layers with and without supports are employed to manufacture it by the Selective Laser Melting (SLM) process. To this end, a coordinate-measuring machine (CMM) is used to measure the geometrical distortion in each manufacturing configuration, following the same measurement protocol. The results show that the laser path strategy favors a thermal gradient which, consequently, induces geometrical distortions in the part. To prove this hypothesis, a numerical simulation is performed to determine the thermal gradient and the pattern of the residual stresses. It was found that the geometrical distortion certainly depends on the position of the feature position and laser strategy, where thermal cycles and residual thermal stresses had an impact in the end-part geometry, especially if a high strength-to-weight ratio commonly used in aeronautics is present. | es_ES |
dc.description.sponsorship | This work is supported by the Serra Húnter program (Generalitat de Catalunya) reference number [UPC-LE-304 (2018)] and by the Aeronautics Advanced Manufacturing Center (CFAA) in the JANO—Joint action toward digital transformation project framework. Diego Celentano acknowledges Pontificia Universidad Católica de Chile (PUC), Wallonie-Bruxelles International (WBI) and National Council for Scientific and Technological Research CONICYT (FONDECYT Projects No. 3180006 and 1180591) for the financial supports provided for this work. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | |
dc.subject | SLM | es_ES |
dc.subject | geometry distortion | es_ES |
dc.subject | Inconel 718 | es_ES |
dc.subject | substrate thickness | es_ES |
dc.subject | numerical simulation | es_ES |
dc.title | Analysis of the Part Distortions for Inconel 718 SLM: A Case Study on the NIST Test Artifact | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2020-11-26T14:11:51Z | |
dc.rights.holder | 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/1996-1944/13/22/5087/htm | es_ES |
dc.identifier.doi | 10.3390/ma13225087 | |
dc.departamentoes | Ingeniería mecánica | |
dc.departamentoeu | Ingeniaritza mekanikoa |
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Except where otherwise noted, this item's license is described as 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).