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

• Main Authors: TACHIBANA, Akira, MITOSE, Kengo, IKUTA, Chikanobu
• Format: Patent
• Language: English; French; German
• Published: 19.04.2017
• Subjects: ALLOYS; APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; CURRENT COLLECTORS; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ELECTRICITY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; FERROUS OR NON-FERROUS ALLOYS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LINE CONNECTORS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PERFORMING OPERATIONS; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; SOLDERING OR UNSOLDERING; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WELDING; WORKING BY LASER BEAM

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 .