Stock material or miscellaneous articles – All metal or with adjacent metals – Having composition – density – or hardness gradient
Patent
1986-04-03
1987-06-30
Rutledge, L. Dewayne
Stock material or miscellaneous articles
All metal or with adjacent metals
Having composition, density, or hardness gradient
428929, B32B 1520
Patent
active
046770313
ABSTRACT:
In construction of a conductive plate made of dispersion strengthened copper alloy, the concentration of the dispersed substance is decreased in the surface sections in order to raise the bending endurance.
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Hausner, H. H., "Pressed-Powder Electrical Contacts Using Graded Multiple-Layers", Product Engineering , Sep. 1945, pp. 618-620.
Nippon Gakki Seizo Kabushiki Kaisha
Rutledge L. Dewayne
Zimmerman John J.
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