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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

Author
Xufei Lu; Cervera, M.; Chiumenti, M.; Li, J.; Ji, X.; Zhang, G.; Lin, X.
Type of activity
Journal article
Journal
Metals
Date of publication
2020-12
Volume
10
Number
20
First page
1643:1
Last page
1643:18
DOI
10.3390/met10121643
Project funding
CEX2018-000797-S
Computational Framework for Additive Manufacturing of Titanium Alloy
Repository
http://hdl.handle.net/2117/342395 Open in new window
URL
https://www.mdpi.com/2075-4701/10/12/1643 Open in new window
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 f...
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.
Keywords
Laser directed energy deposition (L-DED), Part warpage, Process parameters, Residual stress, Scanning pattern, Thermo-mechanical simulation
Group of research
(MC)2 - UPC Computational continuum mechanics
RMEE - Strength of Materials and Structural Engineering Research Group

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