METAL MEMBER, A TERMINAL, A WIRE CONNECTING STRUCTURE AND A METHOD OF MANUFACTURING A TERMINAL

摘要

Provided is a metal member having an improved laser weldability of copper and a copper alloy and having a small HAZ, a terminal and a wire connecting structure using thereof, as well as a method of manufacturing a terminal. A metal member 1 of the present disclosure has, for example as shown in FIG. 1 , a base material 2 composed of one of copper and a copper alloy, a white metal layer 3 provided on the base material 2 at a part or entirety thereof, and an oil film 4 provided on the white metal layer. With the metal member 1 of the present disclosure, the white metal layer has a thickness of 0.01 µm to 0.80 µm, a surface of the white metal layer has an arithmetic mean roughness Ra of 0.6 µm to 1.2 µm, and the oil film has an electric double-layer capacitance of 1.5 µF/cm 2 to 7.0 µF/cm 2 .