Aluminum alloys possessing improved resistance weldability
AssigneeSwiss Aluminium Ltd.
InventorsPhilip R. Sperry, William C. Setzer, Lloyd E. Damon
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Abstract
Aluminum alloys exhibiting improved resistance weldability are prepared which comprise 1.9-5.5% copper, up to 1.5% iron, up to 1.2% silicon, up to 1.2% manganese, 0.02-2.0% magnesium, and from 0.03-0.20% vanadium, balance essentially aluminum. The alloys of the present invention are particularly suited for automotive metal working applications.
Claims12
A wrought article exhibiting reduced electrical conductivity, increased electrical resistivity, improved resistance weldability plus good tensile properties prepared from an aluminum base alloy consisting essentially of from 2.2 to 3.0% copper, up to 1.5% iron, up to 1.2% silicon, up to 1.2% manganese, from 0.02 to 2.0% magnesium, and from 0.03 to 0.20% vanadium, balance aluminum, wherein vanadium is retained in solid solution.
A resistance welded article having reduced electrical conductivity, increased electrical resistivity, improved resistance weldability plus good tensile properties prepared from an aluminum base alloy consisting essentially of from 2.2 to 3.0% copper, up to 1.5% iron, up to 1.2% silicon, up to 1.2% manganese, from 0.02 to 2.0% magnesium, and from 0.03 to 0.20% vanadium, balance aluminum, wherein vanadium is retained in solid solution.
Dependencies are inferred from the claim text.