Assessment of corona/arcing hazard for electron beam welding in space shuttle bay at LEO for ISWE, test results / A.C. Nunes, Jr. [and five others].

Format:

Book

Government document

Author/Creator:

Nunes, A. C., author.

Contributor:

George C. Marshall Space Flight Center, issuing body.

United States. National Aeronautics and Space Administration, sponsoring body.

Series:

NASA technical memorandum ; 108525.

NASA technical memorandum ; 108525

Language:

English

Subjects (All):

Argon.

Electric discharges.

Electron beam welding.

Titanium alloys.

Electric action of points.

argon.

electron beam welding.

Physical Description:

1 online resource (iv, 7 pages) : illustrations.

Other Title:

Assessment of corona/arcing hazard for electron beam welding in space shuttle bay at low Earth orbit for international space welding experiment

Place of Publication:

MSFC, Alabama : National Aeronautics and Space Administration, Marshall Space Flight Center, November 1996.

Summary:

Test welds were made in argon over a range of pressures from 10-5 to 10-3 torr (the latter pressure an order of magnitude above pressures anticipated in the space shuttle bay during welding) with and without plasma on 304 stainless steel, 6Al-4V titanium, and 5456 aluminum in search of any possible unwanted electrical discharges. Only a faint steady glow of beam-excited atoms around the electron beam and sometimes extending out into the vacuum chamber was observed. No signs of current spiking or of any potentially dangerous electrical discharge were found

Notes:

Title from title screen (viewed May 6, 2016).

"November 1996."

"Performing organization: George C. Marshall Space Flight Center, Marshall Space Flight Center, Alabama"--Report documentation page.

Includes bibliographical references (page 6).

No Copyright

Unclassified

Publicly Available

Unlimited

Other Format:

Microfiche version: Assessment of corona/arcing hazard for electron beam welding in space shuttle bay at LEO for ISWE

OCLC:

703645474