Materials & Design, 2023 This paper presents an experimental study to characterize the ripples and other morphological formations as well as their influence on the heterogeneous microstructure on the surfaces of the directed energy deposition (DED)-printed stainless steel (316L)
Himanshu Balhara +3 more
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Advances in Ultrasonic-Assisted Directed Energy Deposition (DED) for Metal Additive Manufacturing
CrystalsDirected Energy Deposition (DED), a branch of AM processes, has emerged as a significant technique for fabricating large metal components in sectors such as aerospace, automotive, and healthcare.
Wenjun Zhang +3 more
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Deformation-Induced Formation of Stray Grains in Additive Manufacturing of Single Crystals. [PDF]
Adv Sci (Weinh)Stray grain formation severely limits the additive manufacturing of single‐crystal alloys. By integrating in situ synchrotron techniques, ex situ characterization, and multi‐scale multi‐physics modeling, the authors reveal that stray grains originate from dislocations at the solid‐liquid interface, rather than thermal supercooling in conventional ...
Zhang D +11 more
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Microstructural effects on properties of as-fabricated Inconel 625 with direct energy deposition process [PDF]
MATEC Web of Conferences, 2023 Three-dimensional printing (3D), also known as metal additive manufacturing (MAM), fabricates parts or components from different feedstocks: wires, powders or sheets.
Booysen Theo-Neal +3 more
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Study on Wear Behavior of 630 Stainless Steel Fabricated by Sequential Metal Additive Manufacturing (Powder Bed Fusion and Directed Energy Deposition) [PDF]
한국정밀공학회지, 2023 Hybrid additive manufacturing (AM) refers to a combination of two metal AM techniques: material deposition by powder bed fusion (PBF) and additional building by directed energy deposition (DED).
Tae-Geon Kim +3 more
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Metals, 2022 The energy used to melt the material at each layer during laser-directed energy deposition (L-DED) accumulates in the solidified layers upon layer deposition and leads to an increase in the temperature of the part with an increasing number of layers ...
Christian Hagenlocher +5 more
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Virtual and Physical Prototyping, 2023 Aluminium alloys are difficult to be manufactured by directed energy deposition (DED) with the widely used infrared laser because of the low absorptivity.
Zijue Tang +9 more
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Preventing Evaporation Products for High-Quality Metal Film in Directed Energy Deposition: A Review
Metals, 2021 Directed energy deposition (DED), a type of additive manufacturing (AM) is a process that enables high-speed deposition using laser technology. The application of DED extends not only to 3D printing, but also to the 2D surface modification by direct ...
Kang-Hyung Kim +3 more
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A review on additive/subtractive hybrid manufacturing of directed energy deposition (DED) process
Advanced Powder Materials, 2022 Additive manufacturing (AM) processes are reliable techniques to build highly complex metallic parts. Direct energy deposition (DED) is one of the most common technologies to 3D print metal alloys.
Mohammadreza Lalegani Dezaki +6 more
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In-process spectroscopic detection of chromium loss during Directed Energy Deposition of alloy 718
Materials & Design, 2020 In this work, a fast optical spectrometer was used to monitor the Directed Energy Deposition (DED) process, during the deposition of Alloy 718 samples with different laser power, thus different energy inputs into the material.
Agnieszka Kisielewicz +5 more
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