Results 21 to 30 of about 47,059 (299)
Wire electron beam additive manufacturing of copper
Abstract The potential of additive manufacturing of copper components is not yet sufficiently investigated despite the existence of a large market for copper products, especially in the energy, mobility, and aerospace sectors. Wire arc additive manufacturing (WAAM) and laser directed energy deposition (DED) with conventional lasers, the ...
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This article reviews the state-of-the -art of mechanical material properties and measurement methods of nanostructures obtained by two nanoscale additive manufacturing methods: gas-assisted focused electron and focused ion beam-induced deposition using ...
Ivo Utke +3 more
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Layer Formations in Electron Beam Sintering [PDF]
Among direct metal processing manufacturing technologies (Rapid Manufacturing), Electron Beam Sintering (EBS) exhibits a high application potential.
Kahnert, M., Lutzmann, S., Zaeh, M. F.
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Measurement of 30kW output from a W-band source constructed by additive manufacturing [PDF]
Experimental results from the operation of an electron beam driven, mm-wave, vacuum electronic source are reported. The aim of this work is to create improved electron-beam-driven, vacuum electronic mm-wave and sub-THz sources by exploiting dispersion ...
Cross, A. W. +5 more
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Control Methods for the Electron Beam Free Form Fabrication Process [PDF]
Engineering a closed-loop control system for an electron beam welder for additive manufacturing is challenging. For earth and space based applications, components must work in a vacuum and optical components must be protected from becoming occluded ...
Seufzer, W. J., Taminger, K. M.
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Powder bed charging during electron-beam additive manufacturing [PDF]
Abstract Electrons injected into the build envelope during powder bed electron-beam additive manufacturing can accumulate on the irradiated particles and cause them to repel each other. Under certain conditions, these electrostatic forces can grow so large that they drive the particles out of the build envelope in a process known as “smoking”. In the
Zachary C. Cordero +3 more
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Additive manufacturing of high density pure tungsten by electron beam melting
Tungsten is an outstanding material and due to its properties like highest melting point and tensile strength of all natural metals and its high thermal conductivity it is a prime candidate for being used in very harsh environments and for challenging ...
D. Dorow-Gerspach +5 more
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Phase field simulation of dendritic microstructure in additively manufactured titanium alloy [PDF]
Additive manufacturing (AM) processes for metals, such as selective laser sintering and electron beam melting, involve rapid solidification process. The microstructure of the fabricated material and its properties strongly depend on the solidification ...
Meng, Lingbin +3 more
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Atomic-scale grain boundary engineering to overcome hot-cracking in additively-manufactured superalloys [PDF]
There are still debates regarding the mechanisms that lead to hot cracking in parts build by additive manufacturing (AM) of non-weldable Ni-based superalloys.
Abed, Stéphane +11 more
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Microstructure and mechanical properties of as-built and heat-treated electron beam melted Ti–6Al–4V [PDF]
This paper investigates the effect of post-deposition heat treatment on porosity, microstructure, and mechanical properties of Ti–6Al–4V produced via an Electron Beam Melting process. Samples were studied in the conditions of as-built and heat treated at
Abdul Khadar Syed +4 more
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