Deep reinforcement learning based toolpath generation for thermal uniformity in laser powder bed fusion process

M Qin, J Ding, S Qu, X Song, CCL Wang, WH Liao - Additive Manufacturing, 2024 - Elsevier
Laser powder bed fusion (LPBF) is a widely used metal additive manufacturing technology.
However, the accumulation of internal residual stress during printing can cause significant …

[HTML][HTML] FEM Simulation of AlSi10Mg Artifact for Additive Manufacturing Process Calibration with Industrial-Computed Tomography Validation

C Patuelli, E Cestino, G Frulla, F Valente, G Servetti… - Materials, 2023 - mdpi.com
Dimensional accuracy of selective laser melting (SLM) parts is one of manufacturers' major
concerns. The additive manufacturing (AM) process is characterized by high-temperature …

[HTML][HTML] Laser powder bed fusion of pure copper electrodes

Y Aghayar, P Moazzen, B Behboodi, A Shahriari… - Materials & Design, 2024 - Elsevier
This study explores the fabrication and characterization of a pure copper electrode for an
EDM equipment using laser powder bed fusion (LPBF) and comparing its performance with …

Finite element modelling for mitigation of residual stress and distortion in macro-scale powder bed fusion components

J Zhou, RA Barrett, SB Leen - Proceedings of the Institution …, 2023 - journals.sagepub.com
Powder bed fusion (PBF) has attracted significant attention in many applications due to its
capability of fabricating complex and customized metal parts. However, the potential for high …

[HTML][HTML] Implementation of a viscoplastic substrate creep model in the thermomechanical simulation of the WAAM process

S Springer, A Röcklinger, M Leitner, F Grün… - Welding in the …, 2022 - Springer
This research work focusses on the implementation of a viscoplastic creep model in the
thermomechanical simulation of the wire arc additive manufacturing (WAAM) process for Ti …

[HTML][HTML] Comparative multi-modal, multi-scale residual stress evaluation in SLM 3D-printed Al-Si-Mg alloy (RS-300) parts

ES Statnik, F Uzun, SA Lipovskikh, YV Kan… - Metals, 2021 - mdpi.com
SLM additive manufacturing has demonstrated great potential for aerospace applications
when structural elements of individual design and/or complex shape need to be promptly …

Approach to optimize the interlayer waiting time in additive manufacturing with concrete utilizing FEM modeling

V Ekanayaka, L Lachmayer, A Raatz, A Hürkamp - Procedia CIRP, 2022 - Elsevier
Additive manufacturing processes show potential and utility in the construction industry by
enabling new design freedoms and increasing the degree of automation. Accurate …

Apparent properties of porous support structure with imperfections in metal additive manufacturing

T Oshima, N Takano - Additive Manufacturing, 2024 - Elsevier
In the laser powder bed fusion (L-PBF) additive manufacturing (AM) of metals, support
structure is necessary for overhang shaped components. This support is porous with …

Mesoscopic-scale numerical investigation including the influence of process parameters on LPBF multi-layer multi-path formation

L Cao - Computer Modeling in Engineering & Sciences, 2021 - ingentaconnect.com
As a typical laser additive manufacturing technology, laser powder bed fusion (LPBF) has
achieved demonstration applications in aerospace, biomedical and other fields. However …

[HTML][HTML] Prediction and understanding of non-linear distortion on large curved wall manufactured by wire-arc direct energy deposition

Y Lee, A Nycz, S Simunovic, L Meyer… - Additive Manufacturing …, 2023 - Elsevier
Wire-arc direct energy deposition (wire-arc DED) has been developed to manufacture large-
scale metal products with high deposition rates, low material cost, and high material …