Results 31 to 40 of about 175,165 (302)

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

Direct Energy Depositions of a 17-4 PH Stainless Steel: Geometrical and Microstructural Characterizations

, 2023
Direct energy deposition (DED) is a widely accepted additive manufacturing process and a possible alternative to the subtractive manufacturing processes due to its high flexibility in fabricating new 3D parts. DED enables the manufacture of complex parts
Alessandro Fortunato, Annalisa Fortini, Cindy Morales, Mattia Merlin   +3 more
core   +1 more source

Refurbishment of small diameter nitrided spindles with laser based direct energy deposition [PDF]

MATEC Web of Conferences
Laser based direct energy deposition is a process that is commonly used to refurbish worn components in the power generation sector. In this work the potential for refurbishment of nitrided spindles manufactured from AISI 420 SS, with a small diameter ...
Louw Danie, Theron Maritha, Rossouw Herman, Scheepers Ronnie, Amir Michael   +4 more
doaj   +1 more source

Directed Energy Deposition via Artificial Intelligence‐Enabled Approaches

Complexity, 2022
Additive manufacturing (AM) has been gaining pace, replacing traditional manufacturing methods. Moreover, artificial intelligence and machine learning implementation has increased for further applications and advancements. This review extensively follows all the research work and the contemporary signs of progress in the directed energy deposition (DED)
Utkarsh Chadha, Senthil Kumaran Selvaraj, Aakrit Sharma Lamsal, Yashwanth Maddini, Abhishek Krishna Ravinuthala, Bhawana Choudhary, Anirudh Mishra, Deepesh Padala, M. Shashank, Vedang Lahoti, Addisalem Adefris, S. Dhanalakshmi   +11 more
openaire   +2 more sources

Influence of Direct Energy Deposition Parameters on Ti–6Al–4V Component’s Structure-Property Homogeneity

Metals, 2021
Ti–6Al–4V alloy is a typical 3D printing metal, and its application has been expanded to various fields owing to its excellent characteristics such as high specific strength, high corrosion resistance, and biocompatibility.
Chan Hyeok Lee, P. L. Narayana, Seong-Woo Choi, N. S. Reddy, Jae H. Kim, Namhyun Kang, Jae-Keun Hong   +6 more
doaj   +1 more source

Process Development to Repair Aluminum Components, Using EHLA and Laser-Powder DED Techniques

Journal of Manufacturing and Materials Processing
The article presents a new AM (Additive Manufacturing) process development, necessary to repair parts made from Aluminum 6061 material, with T6 treatment. The laser Directed Energy Deposition (DED) and Extreme High-Speed Directed Energy Deposition (EHLA)
Adrienn Matis, Min-Uh Ko, Richard Kraft, Nicolae Balc   +3 more
doaj   +1 more source

Multi-scale simulation of dendrite growth for direct energy deposition of nickel-based superalloys

Materials & Design, 2019
In this study, a multi-scale model that integrates a macro-scale transient three-dimensional mass and heat transfer model and a micro-scale thin-interface phase-field model is developed to simulate the solidification behavior of the molten pool and the ...
Wenjia Xiao, Simeng Li, Cunshan Wang, Yan Shi, Jyotirmoy Mazumder, Hui Xing, Lijun Song   +6 more
doaj   +1 more source

Solid Oxide Fuel Cell Anode Materials for Direct Hydrocarbon Utilization

, 2012
Solid oxide fuel cells (SOFC) are highly efficient energy conversion devices with the advantage of directly utilizing hydrocarbon fuels. Starting with a short introduction about the fuel challenges and early achievements in this field, this review paper ...
Ge, Xiao-Ming, Ge, Xiaoming, Qiang Sun, Qing‐Lin Liu, Chan, Siew-Hwa, Liu, Qing-Lin, Siew‐Hwa Chan, Sun, Qiang, Chan, Siew Hwa, Xiao‐Ming Ge   +9 more
core   +1 more source

Extended reality implementation possibilities in direct energy deposition-arc

Frontiers in Sustainability
The state-of-the-art cleaner smart manufacturing process in the metal industry is the direct energy deposition-arc (DED-arc) process, which has emerged as an energy-efficient method for producing complex geometry metallic constructions.
Hannu Lund, Sakari Penttilä, Tuomas Skriko   +2 more
doaj   +1 more source

Empirical formulation for bead shape prediction in direct energy deposition

Mechanics & Industry
In the metal deposition process, the bead shape plays a critical role in determining the precision and mechanical properties of the final product. Therefore, prior to additive manufacturing, it is essential to determine an optimal bead shape.
Baek Gyeong-Yun
doaj   +1 more source