Harmonizing sound and light: X-ray imaging unveils acoustic signatures of stochastic inter-regime instabilities during laser melting
Laser powder bed fusion (LPBF) is a metal additive manufacturing technique involving
complex interplays between vapor, liquid, and solid phases. Despite LPBF's advantageous …
complex interplays between vapor, liquid, and solid phases. Despite LPBF's advantageous …
Quantitative investigation of gas flow, powder-gas interaction, and powder behavior under different ambient pressure levels in laser powder bed fusion
The powder motion in laser powder bed fusion (LPBF) processes causes defect and
variability issues in the built products. It has been reported that the ambient pressure has a …
variability issues in the built products. It has been reported that the ambient pressure has a …
Infrared thermographic imaging based real-time layer height estimation during directed energy deposition
Monitoring the layer height during the directed energy deposition (DED) process is
challenging but essential for the assurance and control of the dimensions and quality of …
challenging but essential for the assurance and control of the dimensions and quality of …
High deposition rate wire-arc directed energy deposition of 316L and 316LSi: Process exploration and modelling
A parameter design of experiments was undertaken to study the impact of Si content in the
wire feedstock, weld speed, and interpass temperature on the microstructure and …
wire feedstock, weld speed, and interpass temperature on the microstructure and …
Energy-coupling mechanisms revealed through simultaneous keyhole depth and absorptance measurements during laser-metal processing
The interaction between high-irradiance light and molten metal is the complex multiphysics
phenomenon that underpins industrial processes such as laser-based additive …
phenomenon that underpins industrial processes such as laser-based additive …
[HTML][HTML] Variation of texture anisotropy and hardness with build parameters and wall height in directed-energy-deposited 316L steel
L Chechik, NA Boone, LR Stanger, P Honniball… - Additive …, 2021 - Elsevier
Directed energy deposition (DED) is an emerging technology with repair applications in
critical aerospace components. Mechanical properties of DED components have been …
critical aerospace components. Mechanical properties of DED components have been …
[HTML][HTML] Technological implications of the Rosenthal solution for a moving point heat source in steady state on a semi-infinite solid
This paper introduces a theoretical framework for the analysis and optimization of melting
processes that use focused moving heat sources. Specifically, we consider the Rosenthal …
processes that use focused moving heat sources. Specifically, we consider the Rosenthal …
Experimental determination of the high-temperature thermal conductivity of steel powders
Abstract The PBF-LB/M process is highly suitable for the additive manufacturing of complex
parts with precise geometrical accuracy using metallic powders. However, certain unknown …
parts with precise geometrical accuracy using metallic powders. However, certain unknown …
Modeling laser beam absorption of metal alloys at high temperatures for selective laser melting
Selective Laser Melting (SLM) is a promising technology to fabricate metallic components
with complex geometries. However, determining process windows for specific materials and …
with complex geometries. However, determining process windows for specific materials and …
Residual stresses in gas tungsten arc welding: a novel phase-field thermo-elastoplasticity modeling and parameter treatment framework
The fusion welding process of metallic components, such as using gas tungsten arc welding
(GTAW), is often accompanied by detrimental deformations and residual stresses, which …
(GTAW), is often accompanied by detrimental deformations and residual stresses, which …