ALUMINUM ELECTRIC WIRE

摘要

PROBLEM TO BE SOLVED: To provide an aluminum electric wire capable of extremely enhancing connection reliability when a terminal metal fitting is connected to the aluminum electric wire by ultrasonic welding.SOLUTION: The aluminum electric wire is produced by insulation-coating an outer peripheral surface of a collective conductor prepared by twisting together a plurality of conductor element wires composed of aluminum or an aluminum alloy, and a terminal metal fitting is connected to the aluminum electric wire by ultrasonic welding. The tensile strength of the conductor element wire making up the collective conductor is set at 70 MPa or more and 100 MPa or less and the coating weight of a lube oil on the surface of the collective conductor is set at 0.10 mg/kg or less.