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Electromagnetic Hammer for MetalworkingHigh eddy currents apply pressure for cold-forming. Coil housing constructed for mechanical strength to hold coil against magnetic force, to maintain electrical contact with coil ends, and to maintain insulation between coil turns. Drilled holes placed to facilitate release of bubbles during potting. In contrast with mechanical hammers, electromagnetic hammer requires no dynamic material contact with workpiece; consequently, produces almost no change in metal grain structure.
Document ID
19860000088
Document Type
Other - NASA Tech Brief
Authors
Anderson, S. A. (Martin Marietta Corp.)
Brunet, F. (Martin Marietta Corp.)
Dowd, A. (Martin Marietta Corp.)
Durham, R. (Martin Marietta Corp.)
Ezell, J. (Martin Marietta Corp.)
Gorr, G. (Martin Marietta Corp.)
Hartley, D. (Martin Marietta Corp.)
Jackson, F. (Martin Marietta Corp.)
Marchand, J. (Martin Marietta Corp.)
Macfarlane, W. (Martin Marietta Corp.)
Nameth, P. (Martin Marietta Corp.)
Okelly, K. (Martin Marietta Corp.)
Phillips, H. (Martin Marietta Corp.)
Rollo, J. (Martin Marietta Corp.)
Rupert, E. (Martin Marietta Corp.)
Sykes, H. (Martin Marietta Corp.)
Vitrano, E. (Martin Marietta Corp.)
Woods, M. (Martin Marietta Corp.)
Date Acquired
August 12, 2013
Publication Date
June 1, 1986
Publication Information
Publication: NASA Tech Briefs
Volume: 10
Issue: 1
ISSN: 0145-319X
Subject Category
FABRICATION TECHNOLOGY
Report/Patent Number
MFS-27096
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.