Method of making a composite metal casting

Details Method of making a composite metal casting Method of making a composite metal casting

1976-03-01

1977-05-17

Baldwin, Robert D.

Metal founding

Process

Shaping liquid metal against a forming surface

291573B, 164111, B22D 1908

Patent

active

040236137

ABSTRACT:
A method of making a metal casting composed of a steel plate and aluminum material interlocked with the steel plate. A plurality of teeth are formed on at least one of the opposed surfaces of the steel plate by raising up a skin of the plate from the same, the teeth providing primary interstices, each of which extends from the steel plate and has at least one face with a number of flaws formed during the formation of the teeth and providing substantially irregular interstices. The casting is then formed by pouring aluminum material in the molten state onto the steel plate surface so that the molten aluminum material penetrates into the primary and irregular interstices, thereby to provide a firm interlocking between the steel plate and the aluminum material upon solidification thereof.

REFERENCES:
patent: 3746086 (1973-07-01), Pasternak

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