Metal fusion bonding – Process – Using explosive energy
Patent
1986-09-08
1987-11-24
Godici, Nicholas P.
Metal fusion bonding
Process
Using explosive energy
228 25, 228109, B23K 2008
Patent
active
047082801
ABSTRACT:
The invention is a tool and process to be used in explosive joining of tubes. The tool consists of an initiator 81, a tool form 82 and a ribbon explosive 25. The assembled tool 80 is a compact, storable and safe device suitable for explosive joining of small, lightweight tubes down to 0.20 inch in diameter. The invention is inserted into a tube 51 to be welded which tube has itself been inserted into either another tube 52 or a tube plate. A shim or standoff between the two surfaces to be welded is necessary. Initiation of the explosive inside the tube results in a high velocity, angular collision between the mating surfaces. This collision creates surface melts and collision bonding wherein electron-sharing linkups are formed.
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NASA Technical Memorandum 84649, "Practical Small-Scale Explosive Seam Welding", Apr., 1983.
Bailey James W.
Bement Laurence J.
Godici Nicholas P.
Heinrich Samuel M.
Helfrich George F.
Manning John R.
The United States of America as represented by the Administrator
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