Results 11 to 20 of about 55,797 (145)

Closed-loop control of meltpool temperature in directed energy deposition

Materials & Design, 2022
The objective of this work is to mitigate flaw formation in powder and laser-based directed energy deposition (DED) additive manufacturing process through close-loop control of the meltpool temperature.
Ziyad Smoqi, Benjamin D. Bevans, Aniruddha Gaikwad, James Craig, Alan Abul-Haj, Brent Roeder, Bill Macy, Jeffrey E. Shield, Prahalada Rao   +8 more
doaj   +1 more source

Sandwich structure printing of Ti-Ni-Ti by directed energy deposition

Virtual and Physical Prototyping, 2022
In the current work, sandwich structure (Ti-6Al-4V)-Ni-(Ti-6Al-4V) is printed by Laser Engineered Net Shaping (LENS). This sandwich structure allows the general repair of broken parts with dissimilar materials.
Aidin Farzaneh, Mahyar Khorasani, Ehsan Farabi, Ian Gibson, Martin Leary, AmirHossein Ghasemi, Bernard Rolfe   +6 more
doaj   +1 more source

Thermomechanical modeling of IN718 alloy directed energy deposition process [PDF]

MATEC Web of Conferences, 2019
Directed Energy Deposition (DED) Additive Manufacturing (AM) processes have a great potential to be used as cost-effective and efficient repairing and re-manufacturing processes for aerospace components such as turbine blades and landing gears.
Doux Adrien, Philippe Vincent
doaj   +1 more source

Influence of aluminium powder aging on Directed Energy deposition

Materials & Design, 2022
The use of aluminium alloys for Additive Manufacturing is of high interest for advanced geometries and lightweight applications. In Directed Energy Deposition, a powder stock is processed with a laser beam, which offers a high process flexibility ...
Adrien Da Silva, Filippo Belelli, Giorgia Lupi, Francesco Bruzzo, Benedikt Brandau, Lukas Maier, Alexander Pesl, Jan Frostevarg, Riccardo Casati, Elena Lopez, Alexander F.H. Kaplan   +10 more
doaj   +1 more source

Underwater laser directed energy deposition of NV E690 steel

Advanced Powder Materials, 2023
Powder-based laser direct metal deposition (DMD), one of the directed energy deposition, was applied in air and underwater to repair pre-machined NV E690 steel plates.
Mingzhi Chen, Kun Yang, Zhandong Wang, Shibin Wang, Erke Wu, Zhonghua Ni, Jinzhong Lu, Guifang Sun   +7 more
doaj   +1 more source

In process monitoring of the thermal profile during solidification in laser directed energy deposition of aluminium

Additive Manufacturing Letters, 2022
The manufacturing of parts in a layer-by-layer fashion in laser based directed energy deposition (L-DED) of wire enables a unique flexibility and freedom of part design, but some technological challenges remain unsolved.
Christian Hagenlocher, Patrick O’Toole, Wei Xu, Milan Brandt, Mark Easton, Andrey Molotnikov   +5 more
doaj   +1 more source

Acoustic emissions in directed energy deposition processes [PDF]

The International Journal of Advanced Manufacturing Technology, 2022
AbstractAcoustic emissions in directed energy deposition processes such as wire arc additive manufacturing and directed energy deposition with laser beam/metal are investigated within this work, as many insights about the process can be gained from this.
Tobias Hauser, Raven T. Reisch, Tobias Kamps, Alexander F. H. Kaplan, Joerg Volpp   +4 more
openaire   +1 more source

Microstructure and hardness comparison of as-built inconel 625 alloy following various additive manufacturing processes

Results in Materials, 2021
Experimental examples of as-built microstructures and associated microindentation hardnesses (HV) for a wide range of metal additive manufacturing (AM) processes for Inconel 625 alloy are presented in this research paper.
Ariel Gamon, Edel Arrieta, Paul R. Gradl, Colton Katsarelis, Lawrence E. Murr, Ryan B. Wicker, Francisco Medina   +6 more
doaj   +1 more source

Study on Fabrication of Closed-cell Aluminum Foam Using Directed Energy Deposition [PDF]

한국정밀공학회지, 2023
In this study, based on directed energy deposition (DED) technology, one of the additive manufacturing technologies, a porous material fabricated by mixing various aluminum alloys and foaming agent was manufactured.
Hwa-Jeong Kim, Do-Sik Shim
doaj   +1 more source

Effect of the Deposition Direction on Fracture Propagation in a Duplex Stainless Steel Manufactured by Directed Energy Deposition

SSRN Electronic Journal, 2022
Dense volumes of duplex stainless steel are manufactured by directed energy deposition. Compact tension specimens are machined from these volumes in order to evaluate the fracture toughness in two directions : parallel or perpendicular to the deposited layers. Different values are measured in the two cases.
David Roucou, Thomas Corre, Gilles Rolland, Véronique Lazarus   +3 more
openaire   +3 more sources