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A composite metal laminate planchet comprises commercially pure aluminum cladding layers metallurgically bonded to zinc or a zinc alloy core. The zinc alloy core may contain a hardening agent, such as copper, aluminum or titanium, used to increase the hardness of the alloy above that of pure zinc. Trace amounts of other elements may also be present in the zinc alloy core or in the commercially pure aluminum cladding layers which do not affect their pertinent properties. The bimetallic is produced by a process comprising providing a strip or sheet of a zinc alloy core and creating a strip or sheet of composite material by metallurgically bonding commercially pure aluminum cladding layers to the zinc alloy. The bimetallic material can be applied for manufacturing keys, coins or any architectonical application. The bimetallic is fully recyclable. |
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