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AssigneesFurukawa Automotive Systems Inc., Furukawa Electric Co., Ltd.
InventorsSaburo Yagi, Yasushi Kihara, Yukihiro Kawamura
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A method for manufacturing a crimp terminal having a crimp portion adapted to allow crimp connection with a coated wire having a conductor and an insulating coating, the crimp portion being adapted to crimp connect along the coated wire from a portion of the conductor coated with the insulating coating to a portion of the conductor exposed from the insulating coating at a tip of the coated wire includes providing a barrel member formed by arranging edges of a copper alloy plate material side-by-side, the barrel member having a diameter reducing on an end portion side in a longitudinal direction from a coating crimp portion, forming the crimp portion by welding the edges by laser irradiation from a laser irradiation unit onto a position where the edges are arranged side-by-side, while moving a laser light irradiation position in a longitudinal direction of the barrel member, and irradiating laser light with an output power density and a sweep rate for causing fine molten metal particles having a diameter of 60 μm or less to ejected from the weld portion during laser welding to adhere to an inner surface of the barrel member.
A method for manufacturing a crimp terminal, the method comprising:
A crimp terminal manufacturing apparatus comprising a laser irradiation unit and a positioning unit, the laser irradiation unit being adapted to irradiate laser light onto an irradiation region of a barrel member, the positioning unit being adapted to position laser light irradiated by the laser irradiation unit along adjacent side edges of the barrel member of a terminal so as to join the adjacent side edges with each other, the laser irradiation unit being adapted to irradiate laser light with an output power density and a sweep rate to cause fine molten metal particles to adhere to an inner surface of the barrel member, the fine molten metal particles being particles having a particle diameter of 60 μm or less and that are ejected during the welding of the side edges of the barrel member.
A crimp terminal comprising a barrel member having a crimp portion, the barrel member comprising a copper alloy, the barrel member having a welded portion at which adjacent side edges of the barrel member are jointed with each other, a first end portion and a second end portion, the first end portion having a first diameter, the second end portion having a second diameter, the second diameter being less than the first diameter, the crimp portion being adapted to be crimped onto a wire having a an insulated portion and an exposed portion at a tip of the wire;
Dependencies are inferred from the claim text.