Height consistency compensation in laser-directed energy deposition of thin-walled parts
Geometric defects, especially for the abnormal height variability of the layers, tend to occur
in the laser-directed energy deposition (LDED) forming of thin-walled parts, which can …
in the laser-directed energy deposition (LDED) forming of thin-walled parts, which can …
Thermo-mechanical analysis of functionally graded nickel/titanium alloys under different process parameters of directed energy deposition
ZJ Li, P Xiao, HL Dai, WF Luo, C Du, ZF Tong - Thin-Walled Structures, 2023 - Elsevier
The build-up of residual stress and porosity plays an important role in the mechanical
properties of as-built parts during directed energy deposition (DED). However, the thermo …
properties of as-built parts during directed energy deposition (DED). However, the thermo …
Efficient residual stress mitigation in additively manufactured 18Ni300 maraging steel
This study explored an effective post-heat treatment (PHT) strategy for achieving optimal
residual stress relief in 18Ni300 maraging steel. The primary focus was to investigate and …
residual stress relief in 18Ni300 maraging steel. The primary focus was to investigate and …
A review of constitutive models used in macroscale finite element analysis of additive manufacturing and post-processing of additively manufactured components
L Isidore Besong, J Buhl - Virtual and Physical Prototyping, 2024 - Taylor & Francis
The development of fast and reliable finite element (FE) simulation codes has increased the
relevance of FE simulations in predicting the outcomes of additive manufacturing (AM) …
relevance of FE simulations in predicting the outcomes of additive manufacturing (AM) …
Gas-particle-heat dynamic coupling simulation in directed energy deposition
L Zhang, J Chen, X Gao, F Niu, Z Zhang - International Journal of …, 2024 - Elsevier
Powder flow can affect the temperature variations in directed energy deposition (DED).
However, the direct coupling mechanism remains unknown. To solve this problem, the heat …
However, the direct coupling mechanism remains unknown. To solve this problem, the heat …
Conforming mesh modeling of multi-physics effect on residual stress in multi-layer powder bed fusion process
The current research aims to predict the residual stress accumulation and evolution in the
powder bed fusion processed multi-layer thin wall structures through a conforming mesh …
powder bed fusion processed multi-layer thin wall structures through a conforming mesh …
Comprehensive study of the cold-temperature directed energy deposition: Multi-physics modelling and experimental validation
Currently almost all the directed energy deposition (DED) processes are performed under
ideal lab conditions with the room temperature close to 20° C. By contrast, the cold …
ideal lab conditions with the room temperature close to 20° C. By contrast, the cold …
[HTML][HTML] Advanced deep operator networks to predict multiphysics solution fields in materials processing and additive manufacturing
Unlike classical artificial neural networks, which require retraining for each new set of
parametric inputs, the Deep Operator Network (DeepONet), a lately introduced deep …
parametric inputs, the Deep Operator Network (DeepONet), a lately introduced deep …
Iterative Stress Reconstruction Algorithm to Estimate Three-Dimensional Residual Stress Fields in Manufactured Components
Residual stress (RS) significantly impacts the mechanical performance of components.
Measurement of RS often provides incomplete data in terms of components of stress and …
Measurement of RS often provides incomplete data in terms of components of stress and …
A finite volume–based thermo-fluid-mechanical model of the LPBF process
The multi-physics coupling feature of the laser powder bed fusion (LPBF) process poses
great challenges to numerical models regarding computational fidelity and efficiency. This …
great challenges to numerical models regarding computational fidelity and efficiency. This …