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dc.contributor.authorLu, Xufei
dc.contributor.authorChiumenti, Michele
dc.contributor.authorCervera Ruiz, Miguel
dc.contributor.authorHua, Tan
dc.contributor.authorXin, Lin
dc.contributor.authorSong, Wang
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Anàlisi Estructural
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2021-06-15T14:01:34Z
dc.date.available2021-06-15T14:01:34Z
dc.date.issued2021-05
dc.identifier.citationLu, X. [et al.]. Warpage analysis and control of thin-walled structures manufactured by laser powder bed fusion. "Metals", Maig 2021, vol. 11, núm. 5, p. 686:1-686:16.
dc.identifier.issn2075-4701
dc.identifier.urihttp://hdl.handle.net/2117/347396
dc.description.abstractThin-walled structures are of great interest because of their use as lightweight components in aeronautical and aerospace engineering. The fabrication of these components by additive manufacturing (AM) often produces undesired warpage because of the thermal stresses induced by the manufacturing process and the components’ reduced structural stiffness. The objective of this study is to analyze the distortion of several thin-walled components fabricated by Laser Powder Bed Fusion (LPBF). Experiments are performed to investigate the sensitivity of the warpage of thin-walled structures fabricated by LPBF to different design parameters such as the wall thickness and the component height in several open and closed shapes. A 3D-scanner is used to measure the residual distortions in terms of the out-of-plane displacement. Moreover, an in-house finite element software is firstly calibrated and then used to enhance the original design in order to minimize the warpage induced by the LPBF printing process. The outcome of this shows that open geometries are more prone to warping than closed ones, as well as how vertical stiffeners can mitigate component warpage by increasing stiffness.
dc.description.sponsorshipThis work was funded by the National Key Technologies R & D Program (No. 2016YFB1100104), the European KYKLOS 4.0 project (An Advanced Circular and Agile Manufacturing Ecosystem based on rapid reconfigurable manufacturing process and individualized consumer preferences—Grant Agreement No. 872570), the Severo Ochoa Programme for Centres of Excellence in R&D (CEX2018-000797-S) and the China Scholarship Council (No. 201906290011).
dc.language.isoeng
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.rightsAttribution 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Aeronàutica i espai::Aeronaus
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
dc.subject.lcshManufacturing processes--Mathematical models
dc.subject.lcshPowder metallurgy--Mathematical models
dc.subject.otherAdditive manufacturing
dc.subject.otherLaser powder bed fusion
dc.subject.otherThin-walled structures
dc.subject.otherWarpage
dc.subject.otherFinite element analysis
dc.titleWarpage analysis and control of thin-walled structures manufactured by laser powder bed fusion
dc.typeArticle
dc.subject.lemacFabricació -- Models matemàtics
dc.subject.lemacPulverimetal·lúrgia -- Models matemàtics
dc.contributor.groupUniversitat Politècnica de Catalunya. RMEE - Grup de Resistència de Materials i Estructures en l'Enginyeria
dc.identifier.doi10.3390/met11050686
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.mdpi.com/2075-4701/11/5/686
dc.rights.accessOpen Access
local.identifier.drac31788761
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/872570/EU/An Advanced Circular and Agile Manufacturing Ecosystem based on rapid reconfigurable manufacturing process and individualized consumer preferences/KYKLOS 4.0
local.citation.authorLu, Xufei; Chiumenti, M.; Cervera, M.; Tan, Hua; Xin, L.; Song, W.
local.citation.publicationNameMetals
local.citation.volume11
local.citation.number5
local.citation.startingPage686:1
local.citation.endingPage686:16


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