Metal fusion bonding – Process – Diffusion type
Patent
1987-02-25
1988-04-12
Jordan, M.
Metal fusion bonding
Process
Diffusion type
228231, 22826319, 419 46, 419 54, B23K 2016, B23K 2700
Patent
active
047368837
ABSTRACT:
A method is disclosed for bonding liquid phase sintered metal powder parts of a tungsten alloy containing nickel. The method involves placing a sheet of copper based material between the parts at their adjoining surfaces to join the parts with the sheet covering essentially the entire area of the surfaces, heating the resulting assembly at a temperature sufficient to melt the copper based material without melting the parts, cooling the resulting heated assembly to room temperature, reheating the assembly at a temperature which is high enough to cause diffusion of the copper based material and the matrix alloying elements into one another without melting the parts, and cooling the resulting twice heated assembly.
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Morgan Ricky D.
Sylvester Vito P.
Castle Donald R.
GTE Products Corporation
Heinrich Samuel M.
Jordan M.
Quatrini L. Rita
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