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2020
Directed Energy Deposition (DED) is a method for melting material as it is being deposited layer-by-layer. Material in wire or powder form is delivered along with the energy required to melt it. Although it has been shown that a number of material types can be processed this way, DED is almost exclusively applied to metals in both research and ...
Ian Gibson +3 more
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Directed Energy Deposition (DED) is a method for melting material as it is being deposited layer-by-layer. Material in wire or powder form is delivered along with the energy required to melt it. Although it has been shown that a number of material types can be processed this way, DED is almost exclusively applied to metals in both research and ...
Ian Gibson +3 more
openaire +2 more sources
2022
AbstractThis article focuses on the directed-energy deposition (DED) additive manufacturing (AM) technique of biomedical alloys. First, it provides an overview of the DED process. This is followed by a section describing the design and development of the multiphysics computational modeling of the layer-by-layer fusion-based DED process.
Mohan Sai Kiran Kumar Yadav Nartu +7 more
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AbstractThis article focuses on the directed-energy deposition (DED) additive manufacturing (AM) technique of biomedical alloys. First, it provides an overview of the DED process. This is followed by a section describing the design and development of the multiphysics computational modeling of the layer-by-layer fusion-based DED process.
Mohan Sai Kiran Kumar Yadav Nartu +7 more
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Directed energy deposition of molybdenum
International Journal of Refractory Metals and Hard Materials, 2019Abstract Two directed energy deposition processes were evaluated for additive manufacturing of molybdenum. First, a laser-based process was used to deposit plasma spheroidized molybdenum powder. The effects of laser power, substrate temperature, and substrate composition on deposition quality were explored.
John L. Johnson, Todd Palmer
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Directed Energy Deposition Processes
2015Directed energy deposition (DED) processes enable the creation of parts by melting material as it is being deposited. Although this basic approach can work for polymers, ceramics, and metal matrix composites, it is predominantly used for metal powders. Thus, this technology is often referred to as “metal deposition” technology.
Ian Gibson, David Rosen, Brent Stucker
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Thin wall deposition of IN625 using directed energy deposition
Journal of Manufacturing Processes, 2020Abstract 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 toolpath strategies on geometry of the final product and mechanical properties have been investigated in many different parent geometries, however, deposition on an ...
Myong Joon Kim, Christopher Saldana
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Directed Energy Deposition Moves Outside the Box
AM&P Technical Articles, 2022Abstract Metal additive manufacturing has steadily progressed over the past decade, with today’s directed energy deposition processes enabling rapid builds of large structures in near-net shape—and with minimal machining required to achieve final dimensions.
Judy Schneider, Paul Gradl
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Directed-Energy Deposition Processes
2020Abstract This article presents a detailed account of directed-energy deposition (DED) processes that are used for additive manufacturing (AM) of metallic materials. It begins with a process overview and a description of the components of DED systems followed by sections providing information on the process involved in DED and the ...
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Cooling Process for Directional Solidification in Directed Energy Deposition
Volume 1: Additive Manufacturing; Bio and Sustainable Manufacturing, 2018Additive manufacturing (AM) for metals has attracted attention from industry because of its great potential to enhance production efficiency and reduce production costs. Directed energy deposition (DED) is a metal AM process suitable to produce large-scale freeform metal products.
Keiya Ishiyama +4 more
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Modeling of Laser Directed Energy Deposition
2021Laser directed energy deposition is a promising additive manufacturing technique that has a huge potential in remanufacturing and restoration of high-value aerospace components. For sustainable repair, it is necessary to control the output parameters, such as deposition geometry and integrity in terms of residual stresses, dilution, defects, and ...
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Directed-Energy Deposition for Ceramic Additive Manufacturing
2020Abstract Directed-energy deposition (DED) is a kind of additive manufacturing (AM) technology based on synchronous powder feeding or wire feeding. This article provides a comprehensive coverage of DED for ceramic AM, beginning with an overview of DED equipment setup, followed by a discussion on DED materials and the DED deposition ...
Fangyong Niu +3 more
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