Results 11 to 20 of about 21,275 (282)

Extracting powder bed features via electron optical images during electron beam powder bed fusion

Additive Manufacturing Letters
Electron beam powder bed fusion offers the unique opportunity to observe the process by measuring scattered electrons on a metal detector. This technique is the state of the art in generating electron optical images of the build area after melting using ...
Matthias Markl, Mohammad Reza Azadi Tinat, Timo Berger, Jakob Renner, Carolin Körner   +4 more
doaj   +2 more sources

Powder recycling for electron beam powder bed fusion of TiAl alloy

Materials & Design
This study systematically investigates the impact of powder recycling (up to 70 cycles) on Ti-48Al-2Cr-2Nb (at.%) alloy processed by electron beam powder bed fusion (EB-PBF).
Feihong Wang, Mengchen Song, Yongfeng Liang, Gengwu Ge, Xiaoyu Liang, Feng Lin, Honghui Wu, Dongfang Wang, Wenbin Kan, Li Liu, Junpin Lin   +10 more
doaj   +2 more sources

Dimensional Accuracy of Electron Beam Powder Bed Fusion with Ti-6Al-4V

Designs, 2023
While much of additive manufacturing (AM) research is focused on microstructure, material properties, and defects, there is much less research in regards to understanding how well the part coming out of the machine matches the 3D model it is based on, as
Eric Bol, Mamidala Ramulu
doaj   +2 more sources

Powder Reuse Cycles in Electron Beam Powder Bed Fusion-Variation of Powder Characteristics. [PDF]

Materials (Basel), 2021
A path to lowering the economic barrier associated with the high cost of metal additively manufactured components is to reduce the waste via powder reuse (powder cycled back into the process) and recycling (powder chemically, physically, or thermally processed to recover the original properties) strategies.
Shanbhag G, Vlasea M.
europepmc   +5 more sources

Electron Beam Powder Bed Fusion of ATI C103TM Refractory Alloy

Metallurgical and Materials Transactions A
The study investigated the use of electron beam powder bed fusion (EB-PBF) to fabricate niobium ATI C103™ alloy articles for microstructural characterization and mechanical testing.
Noah Philips, Christopher Rock, Nicholas Cunningham, Josh Cooper, Timothy Horn   +4 more
semanticscholar   +2 more sources

Electron Beam Powder Bed Fusion of Water Atomized Iron and Powder Blends. [PDF]

Materials (Basel), 2022
In the present state of the art, highly spherical alloy powders are employed as feedstock in powder bed fusion processes. These powders are characterized by high flowability and apparent density. Their elaborate fabrication process is reflected in high powder price, adding a significant fraction to the cost of additively manufactured parts.
Kirchner A, Klöden B, Franke-Jurisch M, Walther G, Weißgärber T.   +4 more
europepmc   +3 more sources

In situ recrystallization of pure Cu during electron beam powder bed fusion

Additive Manufacturing Letters
Additively manufactured parts often exhibit an anisotropic microstructure characterized by columnar grains resulting from epitaxial growth from the underlying layers in the direction of the thermal gradient, i.e. parallel to the build direction.
Alexandre Margueret, Pierre Lhuissier, Guilhem Martin   +2 more
doaj   +2 more sources

Comparison of Phase Characteristics and Residual Stresses in Ti-6Al-4V Alloy Manufactured by Laser Powder Bed Fusion (L-PBF) and Electron Beam Powder Bed Fusion (EB-PBF) Techniques

Crystals, 2021
Ti-6Al-4V alloy fabricated by laser powder bed fusion (L-PBF) and electron beam powder bed fusion (EB-PBF) techniques have been studied for applications ranging from medicine to aviation. The fabrication technique is often selected based on the part size
Aya Takase, Takuya Ishimoto, Naotaka Morita, Naoko Ikeo, Takayoshi Nakano   +4 more
doaj   +2 more sources

Melting ceramic Al2O3 powder by electron beam powder bed fusion

Progress in Additive Manufacturing
Electron beam powder bed fusion (PBF-EB) is a known metal additive manufacturing (AM) technology. Processing non-conducting powders such as ceramics has so far been considered as not feasible because of the inherent problems with Coulomb repulsion due to
William Sjöström, Carlos Botero, Emilio Jimenez-Piqueo   +2 more
semanticscholar   +4 more sources

Small- to Large-Scale Electron Beam Powder Bed Fusion of Functionally Graded Steels

Journal of Manufacturing and Materials Processing
The ability to control process parameters over time and build space in electron beam powder bed fusion (PBF-EB) opens up unprecedented opportunities to tailor the process and use materials of a different nature in the same build.
Carlos Botero, William Sjöström, Emilio Jimenez-Pique, Andrey Koptyug, Lars-Erik Rännar   +4 more
doaj   +4 more sources