Electric heating – Metal heating – By arc
Patent
1997-11-19
1999-11-30
Mills, Gregory
Electric heating
Metal heating
By arc
378 1, B23K 2800
Patent
active
059946601
ABSTRACT:
A method for joining metal-matrix composites (MMCs) by using high power x-rays as a volumetric heat source is provided. The method involves directing an x-ray to the weld line between two adjacent MMCs materials to create an irradiated region or melt zone. The x-rays have a power density greater than about 10.sup.4 watts/cm.sup.2 and provide the volumetric heat required to join the MMC materials. Importantly, the reinforcing material of the metal-matrix composites remains uniformly distributed in the melt zone, and the strength of the MMCs are not diminished. In an alternate embodiment, high power x-rays are used to provide the volumetric heat required to weld metal elements, including metal elements comprised of metal alloys. In an alternate embodiment, high power x-rays are used to provide the volumetric heat required to weld metal elements, including metal elements comprised of metal alloys.
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R. Rosenberg, W. Farrell, Q. Ma, D. Mancini, A. Khounsary, and A. Sheng, E. Crozier, G. Soerensen, R. Gordon, D. Jiang, "Prospects for Using High Power X-Rays as a Volumetric Heat Source," Proceedings of SPIE, Annual Meeting, San Diego, California, Jul. 27, 1997 to Aug. 1, 1997.
R. Rosenberg, Q. Ma, W. Farrell, M. Keefe, and D. Mancini, "X-Ray Welding of Metal-matrix Composites," Rev. Sci. Instrum. 68 (6) p. 2550, Jun. 1997.
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Farrell William J.
Goeppner George A.
Ma Qing
Noonan John R.
Rosenberg Richard A.
Mills Gregory
Moser William R.
Park Daniels D.
Soltis Lisa M.
U.S. Department of Energy
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