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Understanding Residual Stress in Functionally Graded Directed Energy Deposition
Additive ManufacturingShenliang Yang +2 more
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Magnetically assisted directed energy deposition
Journal of Materials Processing Technology, 2021Abstract Poor powder catchment efficiency, is a limiting factor in the adoption of Directed Energy Deposition for the processing of expensive materials, complex shapes and for the sake of energy efficiency. This study demonstrates a novel approach to improve powder catchment efficiency using a magnetic field to direct ferritic steel powder during ...
Peter H. Smith +4 more
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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
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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
openaire +1 more source
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 of metals: processing, microstructures, and mechanical properties
International Materials Reviews, 2022Amongst the many additive manufacturing (AM) techniques, directed energy deposition (DED) is a prominent one, which can also be used for the repair of damaged components.
Shi-Hao Li +3 more
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