Composite material

Details Composite material Composite material

1980-06-09

1982-05-18

Lewis, Michael L.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428940, 40 275, B32B 1520

Patent

active

043305997

ABSTRACT:
Novel and advantageous metal laminates particularly useful in making coins comprising a copper core and a cladding metallurgically bonded thereto of a copper base alloy containing from 2 to 3.5% aluminum, from 1 to 2.5% silicon and the balance essentially copper. Disclosure also teaches a method of preparing copper laminates by providing a copper core in strip form in the hard temper and a copper alloy cladding fully annealed in strip form, wherein the components are rolled together in a single pass with a reduction of from 50 to 75% to provide the metallurgically bonded laminate.

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patent: 3496621 (1970-02-01), Winter
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patent: 3750253 (1973-08-01), Miller
patent: 3753669 (1973-08-01), Churchill
Semiatin, S. L., et al; "Formability of Sandwich Sheet Materials In Plane Strane Compression Rolling"; Met. Trans A AIME vol. 10A pp. 97-106 (1/79).

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