High deposition rate powder-and wire-based laser directed energy deposition of metallic materials: A review
High deposition rate laser directed energy deposition (HDR-DED) technology, including
powder-and wire-based laser directed energy deposition, has emerged recently to fulfil the …
powder-and wire-based laser directed energy deposition, has emerged recently to fulfil the …
Understanding powder degradation in metal additive manufacturing to allow the upcycling of recycled powders
D Powell, AEW Rennie, L Geekie, N Burns - Journal of Cleaner Production, 2020 - Elsevier
To ensure the financial viability of powder-based additive manufacturing technologies, the
recycling of powders is common practice. This paper shows the lifecycle of metal powder in …
recycling of powders is common practice. This paper shows the lifecycle of metal powder in …
The influence of nozzle geometry on powder flow behaviors in directed energy deposition additive manufacturing
To show the relationship between the nozzles and the powder flows, computational fluid
dynamics and discrete element methods were used to simulate the interactions between the …
dynamics and discrete element methods were used to simulate the interactions between the …
Nozzle designs in powder-based direct laser deposition: a review
Abstract Laser-based Direct Energy Deposition (L-DED) is one of the most commonly
employed metal additive manufacturing technologies. In L-DED, a laser beam is employed …
employed metal additive manufacturing technologies. In L-DED, a laser beam is employed …
Experimental and numerical analysis of gas/powder flow for different LMD nozzles
E Ferreira, M Dal, C Colin, G Marion, C Gorny… - Metals, 2020 - mdpi.com
The Laser Metal Deposition (LMD) process is an additive manufacturing method, which
generates 3D structures through the interaction of a laser beam and a gas/powder stream …
generates 3D structures through the interaction of a laser beam and a gas/powder stream …
Thin wall deposition of IN625 using directed energy deposition
Laser powder-blown directed energy deposition (DED) is widely used for small feature
deposition ability and geometrical accuracy. The effects of process parameters, control, and …
deposition ability and geometrical accuracy. The effects of process parameters, control, and …
Maximizing Energy Efficiency in Additive Manufacturing: A Review and Framework for Future Research
G May, F Psarommatis - Energies, 2023 - mdpi.com
Additive manufacturing (AM) offers unique capabilities in terms of design freedom and
customization, contributing to sustainable manufacturing. However, energy efficiency …
customization, contributing to sustainable manufacturing. However, energy efficiency …
[HTML][HTML] Multi-faceted monitoring of powder flow rate variability in directed energy deposition
Powder flow rate is a key parameter in Directed Energy Deposition (DED) processes. During
a typical build, if powder flow rate is reduced for just 1 second, 30 mm of melt track is …
a typical build, if powder flow rate is reduced for just 1 second, 30 mm of melt track is …
[HTML][HTML] Surface texture characterization for thin-wall NASA HR-1 Fe–Ni–Cr alloy using laser powder directed energy deposition (LP-DED)
Additive Manufacturing (AM) offers new design and manufacturing opportunities of thin-wall
microchannel heat exchangers for aerospace and industrial applications. Laser Powder …
microchannel heat exchangers for aerospace and industrial applications. Laser Powder …
The relevance of wall roughness modeling for simulation of powder flows in laser metal deposition nozzles
A Haghshenas, A Bohlen, D Tyralla, R Groll - The International Journal of …, 2022 - Springer
Point-particle large-eddy simulations and high-speed imaging are used to investigate effects
of wall roughness and particle size on characteristics of a powder flow issuing from a …
of wall roughness and particle size on characteristics of a powder flow issuing from a …