NDLI: Development of a prototype low-voltage electron beam freeform fabrication system

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Development of a prototype low-voltage electron beam freeform fabrication system

Content Provider	NASA Technical Reports Server (NTRS)
Author	Taminger, K. M. Hafley, R. A. Petersen, D. D. Watson, J. K.
Copyright Year	2002
Description	NASA's Langley Research Center and Johnson Space Center are developing a solid freeform fabrication system utilizing an electron beam energy source and wire feedstock. This system will serve as a testbed for exploring the influence of gravitational acceleration on the deposition process and will be a simplified prototype for future systems that may be deployed during long-duration space missions for assembly, fabrication, and production of structural and mechanical replacement components. Critical attributes for this system are compactness, minimal mass, efficiency in use of feedstock material, energy use efficiency, and safety. The use of a low-voltage (less than 15kV) electron beam energy source will reduce radiation so that massive shielding is not required to protect adjacent personnel. Feedstock efficiency will be optimized by use of wire, and energy use efficiency will be achieved by use of the electron beam energy source. This system will be evaluated in a microgravity environment using the NASA KC-135A aircraft.
File Size	541860
Page Count	8
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20030012711
Archival Resource Key	ark:/13960/t1bk6b14t
Language	English
Publisher Date	2002-01-01
Access Restriction	Open
Subject Keyword	Electronics And Electrical Engineering Fabrication Low Voltage Electron Beams Gravitational Effects C-135 Aircraft Acceleration Electric Wire Microgravity Deposition Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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