Method of electroforming on a metal substrate

Details Method of electroforming on a metal substrate Method of electroforming on a metal substrate

C - Chemistry, Metallurgy

25

D

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C25D 1/10 (2006.01) C25D 1/00 (2006.01) C25D 1/02 (2006.01)

Patent

CA 1070260

METHOD OF ELECTROFORMING ON A METAL SUBSTRATE ABSTRACT OF THE DISCLOSURE A metal article is produced by: (1) providing an aluminum master substrate, the surface of which may be smooth or patterned; (2) making the aluminum matter substrate cathodic, in an acid or acid salt solution which will not etch aluminum, at a current density of between about 10 to 500A/sq. ft., at solution temperatures of up to about 50°C; (3) coating the surface of the aluminum master substrate with a thin metal layer and (4) dissolving the aluminum master substrate, to provide a metal foil article that is a negative duplicate of the smooth or patterned aluminum master substrate surface.

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