Results 11 to 20 of about 234,352 (292)

Effects of Gravity and Non-Perpendicularity during Powder-Fed Directed Energy Deposition of Ni-Based Alloy 718 through Two Types of Coaxial Nozzle [PDF]

, 2020
The consequences of gravity and the nozzle inclination angle in the powder-fed Directed Energy Deposition (DED) process were examined in this study.
Alberdi, Amaia, Lamikiz, Aitzol, Ortiz, Mikel, Ramiro-Castro, Pedro   +3 more
core   +2 more sources

W7Ni3Fe-Ti6Al4V bimetallic layered structures via directed energy deposition

Virtual and Physical Prototyping, 2023
Bimetallic structures of Ti6Al4V-W7Ni3Fe were fabricated via directed energy deposition (DED)-based additive manufacturing (AM). Our research demonstrates the ability of DED-based AM to control Ti6Al4V-W7Ni3Fe bimetallic structures with tailorable ...
Yanning Zhang, Cory Groden, E. Nyberg, A. Bandyopadhyay   +3 more
doaj   +1 more source

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

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

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

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

Nanostructured Ti thin films by magnetron sputtering at oblique angles [PDF]

, 2016
The growth of Ti thin films by the magnetron sputtering technique at oblique angles and at room temperature is analysed from both experimental and theoretical points of view.
Cotrino Bautista, José, Ferrer Fernández, Francisco Javier, García-Martín, José Miguel, García-Valenzuela, Aurelio, Macías Montero, Manuel Jesús, Palmero Acebedo, Alberto, Rico Gavira, Víctor Joaquín, Rodríguez González-Elipe, Agustín, Santiso, José, Álvarez Molina, Rafael   +9 more
core   +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