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Modeling of the effect of the building strategy on the thermomechanical response of Ti-6Al-4V rectangular parts manufactured by laser directed energy deposition
dc.contributor.author | Lu, Xufei |
dc.contributor.author | Cervera Ruiz, Miguel |
dc.contributor.author | Chiumenti, Michele |
dc.contributor.author | Li, Junjie |
dc.contributor.author | Ji, Xianglin |
dc.contributor.author | Zhang, Guohao |
dc.contributor.author | Lin, Xin |
dc.contributor.other | Universitat Politècnica de Catalunya. Doctorat en Anàlisi Estructural |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental |
dc.date.accessioned | 2021-03-24T15:35:05Z |
dc.date.available | 2021-03-24T15:35:05Z |
dc.date.issued | 2020-12 |
dc.identifier.citation | Lu, X. [et al.]. Modeling of the effect of the building strategy on the thermomechanical response of Ti-6Al-4V rectangular parts manufactured by laser directed energy deposition. "Metals", Desembre 2020, vol. 10, núm. 20, p. 1643:1-1643:18. |
dc.identifier.issn | 2075-4701 |
dc.identifier.uri | http://hdl.handle.net/2117/342395 |
dc.description.abstract | Part warpage and residual stress are two of the main challenges for metal additive manufacturing (AM) as they result in lower geometric precision and poor mechanical properties of the products. This work investigates the effect of the building strategy on the heat transfer process and the evolution of the thermally induced mechanical variables in laser directed energy deposition (L-DED) in order to minimize residual stresses and deformations. A 3D finite element (FE) thermo-mechanical model is firstly calibrated through in-situ experiments of rectangular workpieces fabricated by L-DED technology, and, secondly, the coupled thermo-mechanical responses for different process parameters and scanning patterns are discussed in detail. On the calibration stage, the remarkable agreement is achieved between predicted results and experimental data. Regarding the modeling stage, the numerical results indicate that minimization of the part warpage is achieved by reducing the back speed and shortening the scanning lines during the building process. Both residual stress and deformation can be further reduced if preheating the baseplate is added before L-DED. |
dc.description.sponsorship | This research was funded by the National Key Technologies R & D Program (No. 2016YFB1100104) and the China Scholarship Council (No. 201906290011). Funding from the Spanish Ministry of Economy and Competitivity (MINECO) under the ADaMANT project: Computational Framework for Additive Manufacturing of Titanium Alloy Components (ref: DPI2017-85998-P), within the Excellency Programme for Knowledge Generation, is gratefully acknowledged. CIMNE is the recipient of the Severo Ochoa Award of Excellence from MINECO. This work was also funded by the European KYKLOS 4.0 project: An Advanced Circular and Agile Manufacturing Ecosystem based on rapid reconfigurable manufacturing process and individualized consumer preferences (No. H2020-DT-2019-1). |
dc.language.iso | eng |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) |
dc.rights | Attribution 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Enginyeria dels materials |
dc.subject.lcsh | Titanium alloys |
dc.subject.other | Laser directed energy deposition (L-DED) |
dc.subject.other | Thermo-mechanical simulation |
dc.subject.other | Process parameters |
dc.subject.other | Scanning pattern |
dc.subject.other | Part warpage |
dc.subject.other | Residual stress |
dc.title | Modeling of the effect of the building strategy on the thermomechanical response of Ti-6Al-4V rectangular parts manufactured by laser directed energy deposition |
dc.type | Article |
dc.subject.lemac | Titani -- Aliatges |
dc.contributor.group | Universitat Politècnica de Catalunya. RMEE - Grup de Resistència de Materials i Estructures en l'Enginyeria |
dc.identifier.doi | 10.3390/met10121643 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | https://www.mdpi.com/2075-4701/10/12/1643 |
dc.rights.access | Open Access |
local.identifier.drac | 30785157 |
dc.description.version | Postprint (published version) |
dc.relation.projectid | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/DPI2017-85998-P/ES/MARCO COMPUTACIONAL PARA LA FABRICACION ADITIVA DE COMPONENTES DE ALEACIONES DE TITANIO/ |
local.citation.author | Lu, X.; Cervera, M.; Chiumenti, M.; Li, J.; Ji, X.; Zhang, G.; Lin, X. |
local.citation.publicationName | Metals |
local.citation.volume | 10 |
local.citation.number | 20 |
local.citation.startingPage | 1643:1 |
local.citation.endingPage | 1643:18 |
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