| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a terminal having fewer defects and exhibiting excellent welding efficiency of laser welding, and to provide a terminal manufactured by the manufacturing method, a terminal material, a terminal connection structure of wire and a manufacturing method therefor, and a copper or a copper alloy plate material for terminal.SOLUTION: A method of manufacturing a terminal 1 having a tube body caulking portion 30 being crimped to a wire includes a step for preparing a copper or a copper alloy base material, a step for forming a tin layer or a tin alloy layer, as the uppermost layer of the base material, on a region giving a tube development part for forming the tube body caulking portion by being bent, a step for shaping into a tube body by heat treating the base material, on which the uppermost layer is formed, punching the base material subjected to heat treatment into the development shape of the terminal, and then bending and butting the tube development part, and a step for forming the tube body caulking portion by jointing the butting part by laser welding of near-infrared laser light irradiation, in this order. A terminal manufactured by the manufacturing method, a terminal material, a terminal connection structure of wire and a manufacturing method therefor, and a copper or a copper alloy plate material for terminal are also provided. |
