摘要:
{Problems} To provide a copper alloy sheet material, excellent in bending property and mechanical strength, and suitable for lead frames, connectors, terminal materials, and the like in electrical/electronic equipments, for connectors, for example, to be mounted on automotive vehicles, and for terminal materials, relays, switches, and the like; and to provide a method of producing the same. {Means to solve} A copper alloy sheet material, containing at least one of Cr, Zr, and Ti in an amount of 0.05 to 1.0 mass% in total, with the balance being copper and unavoidable impurities, wherein an area ratio of Cube orientation {0 0 1} is 5% or more and 70% or less, in crystal orientation analysis by an EBSD analysis, and wherein a Vickers hardness is 120 or more; and a method of producing the same.
摘要:
{Problems} To provide a Corson-based copper alloy sheet material which satisfies characteristics required of terminals and connectors, such as mechanical strength and bending property. {Means to solve} A copper alloy sheet material for electrical or electronic parts, which is composed of a copper alloy composition containing, in terms of mass%, any one or both of Ni or Co in an amount of 0.8 to 5%, and Si in an amount of 0.2 to 1.5%, with the balance being Cu and inevitable impurities, wherein an area ratio of grains having a deviation angle of less than 15° from the Cube orientation is controlled to less than 10%, and an area ratio of grains having a deviation angle of 15° to 30° from the Cube orientation is controlled to 15% or greater, and wherein the copper alloy sheet material has excellent mechanical strength and bending property.