Stock material or miscellaneous articles – All metal or with adjacent metals – Workpiece with longitudinal passageway or stopweld material
Patent
1991-08-12
1994-04-05
Zimmerman, John
Stock material or miscellaneous articles
All metal or with adjacent metals
Workpiece with longitudinal passageway or stopweld material
428593, 228157, 228193, B32B 320, B23K10102, B23K10104
Patent
active
053003675
ABSTRACT:
A metallic structural panel having a plurality of internal passages separated by supporting ribs and its method of fabrication. The fabrication assembly of the metallic structural panel is essentially comprised of a housing defining an internal cavity, a plurality of internal tubes, a means for segregating the internal cavity into a pressurized and an evacuation section and a means for establishing a pressure differential between the pressurized and evacuation sections. The metallic structural panel is superplastically formed and diffusion bonded such that independent passages are formed between supporting ribs within the internal cavity of the housing. Embodiments of the fabrication assembly for manufacturing metallic structural panel are also provided which produced a curved structural panel. These embodiments utilize a curved housing along with either curved end plates or curved internal tubes, depending on whether the supporting ribs are desired to be straight or curved, respectively. If enhanced heat transfer is desired, there is provided an additional embodiment which incorporates a network of cooling tubes.
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Bodart Edward D.
Morgenthaler Gerald T.
Courson Timothy H.
Gosnell Guy R.
Hudson, Jr. Benjamin
McDonnell Douglas Corporation
Zimmerman John
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