Investigation of novel trochoidal toolpath strategies for productive and efficient directed energy deposition processes [PDF]
, 2019 Directed energy deposition (DED) is an additive manufacturing technology where a moving energy source creates a meltpool on the surface of a substrate into which feedstock material is deposited to form the final part geometry. Maintenance of the meltpool
Li, Geng, Odum, Kyle, Soshi, Masakazu
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Comparative Microstructural and Mechanical Assessment of Wire vs. Powder Laser-DED (AISI 316L)
MetalsLaser-directed energy deposition (DED) using wire or powder feedstock is a promising way to fabricate prototypes in rapid time, including complex metal parts for advanced engineering applications.
Sai Vempati +6 more
doaj +1 more source
Additive Manufacturing and Hot-Fire Testing of Bimetallic GRCop-84 and C-18150 Channel-Cooled Combustion Chambers Using Powder Bed Fusion and Inconel 625 Hybrid Directed Energy Deposition [PDF]
Additive manufacturing (AM) is an advanced fabrication technique that is demonstrating tremendous potential to reduce fabrication lead times and costs for liquid rocket engine components.
Doshi, Vishal +4 more
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, 2017 Among the many additive manufacturing (AM) processes for metallic materials, selective laser melting (SLM) is arguably the most versatile in terms of its potential to realize complex geometries along with tailored microstructure.
Gibbs, Jonathan S. +4 more
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Functionally Magnetic Gradient Copper-Nickel Material Fabricated via Directed Energy Deposition [PDF]
, 2022 Functionally gradient materials (FGMs) of CuSn10 and Inconel 718 were fabricated via a hybrid directed energy deposition (DED) system. The objective of the present thesis is to determine the feasibility of manufacturing CuSn10 and Inconel 718 FGMs via ...
Nguyen, Vy Tran Phuong
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Microstexture of Ti-6Al-4V obtained by direct energy deposition (DED) process
, 2016 The microstructure of bulk samples prepared by CLAD® additive manufacturing of Ti-6Al-4V (Ti64) powder have been investigated by means of SEM and phase reconstruction. The CLAD® technique (laser blown powder processing) developed at IREPA LASER provides very high cooling rate promoting the formation of the martensitic α’ phase in the form of thin ...
Weiss, Laurent +3 more
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Aeronautical metallic components repair using direct energy deposition (DED) process
, 2023 Inconel alloy 718 (IN718) is a precipitation hardened nickel-based superalloy widely used in aero-engine components –turbine blades, vanes and blisks– that are subjected to severe thermo-mechanical loads in service. Hence, for economic reasons, repair of these high value-added parts is an important alternative to extend their lifetime instead of ...
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Cavity quantum electrodynamics with three-dimensional photonic bandgap crystals
, 2015 This paper gives an overview of recent work on three-dimensional (3D) photonic crystals with a "full and complete" 3D photonic band gap. We review five main aspects: 1) spontaneous emission inhibition, 2) spatial localization of light within a tiny ...
Vos, W. L., Woldering, L. A.
core
Development of a Laser Double-wire Directed Energy Deposition Process for Functionally Graded Materials and In-situ alloying [PDF]
Development of a Laser Double-wire Directed Energy Deposition process (LD-DED). Utilizing high material efficiency of the laser wire process for multi-material additive manufacturing.
Ahlers, Henning +3 more
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Spectroscopy of free radicals and radical containing entrance-channel complexes in superfluid helium nano-droplets [PDF]
, 2006 The spectroscopy of free radicals and radical containing entrance-channel complexes embedded in superfluid helium nano-droplets is reviewed. The collection of dopants inside individual droplets in the beam represents a micro-canonical ensemble, and as ...
Alkemade U +22 more
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