公开(公告)号：US20230110940A1

公开(公告)日：2023-04-13

申请号：US17930869

申请日：2022-09-09

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Nobuyasu MATSUMOTO ,  Fumika NISHINO ,  Tomomichi YASUOKA ,  Jun TERADA ,  Daeyoul YOON ,  Kazuyuki UMENO ,  Masamitsu KANEKO

IPC: B23K26/067 ,  B23K26/70

Abstract: A welding method includes performing welding by emitting laser light moving in a sweeping direction relatively to a processing object onto a surface of the processing object to melt a portion of the processing object onto which the laser light is emitted, wherein the laser light includes: first laser light having a wavelength equal to or larger than 800 nm and equal to or smaller than 1200 nm; and second laser light having a wavelength equal to or smaller than 550 nm.

公开(公告)号：US20230101343A1

公开(公告)日：2023-03-30

申请号：US18060718

申请日：2022-12-01

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Nobuyasu MATSUMOTO ,  Fumika NISHINO ,  Masamitsu KANEKO ,  Kazuyuki UMENO ,  Jun TERADA ,  Daeyoul YOON ,  Tomomichi YASUOKA ,  Sayo SUGA ,  Toshiaki SAKAI

IPC: B23K26/244 ,  B32B15/01 ,  H01M50/566 ,  B23K26/06 ,  B23K26/067 ,  B23K26/32

Abstract: A welding method includes: irradiating a plurality of metal foils stacked on a first surface of a metal member in a first direction with laser light to weld the metal member and the plurality of metal foils to each other, the laser light including first laser light having a wavelength of 800 [nm] or more and 1200 [nm] or less and second laser light having a wavelength of 550 [nm] or less, a second surface of a metal foil farthest from the metal member in the first direction among the plurality of metal foils, on a side opposite to the metal member, being irradiated with the laser light.

公开(公告)号：US20230311243A1

公开(公告)日：2023-10-05

申请号：US18301459

申请日：2023-04-17

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Nobuyasu MATSUMOTO ,  Tomomichi YASUOKA ,  Sayo SUGA ,  Toshiaki SAKAI ,  Masamitsu KANEKO ,  Takashi SHIGEMATSU ,  Kazuyuki UMENO ,  Jun TERADA

IPC: B23K26/06 ,  B23K26/24

CPC classification number: B23K26/0608 ,  B23K26/24 ,  G02B27/0944

Abstract: A laser welding method includes: forming a molten weld pool by emitting laser light including a main power region and a sub-power region onto a workpiece, the main power region including at least one main beam, the sub-power region including at least one sub-beam having a lower power density than power density of the main beam; and solidifying the molten weld pool. The sub-beam is emitted onto the workpiece such that a void formed inside the molten weld pool escapes to outside of the molten weld pool before the molten weld pool becomes solidified.

公开(公告)号：US20230256539A1

公开(公告)日：2023-08-17

申请号：US18301307

申请日：2023-04-17

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Tomomichi YASUOKA ,  Shinji SATOH ,  Nobuyasu MATSUMOTO ,  Sayo SUGA ,  Fumika NISHINO ,  Jun TERADA ,  Kazuyuki UMENO ,  Masamitsu KANEKO ,  Takashi SHIGEMATSU

IPC: B23K26/21

CPC classification number: B23K26/21

Abstract: A laser welding method includes: preparing a first member and a second member, the first member and the second member having a first end portion and a second end portion in a first direction, respectively; arranging the second member adjacent to the first member in a second direction intersecting with the first direction such that a distance between the first end portion and the second end portion is 0 or more along the first direction; forming a first molten pool protruding from the first end portion toward at least the second end portion, by emitting laser light to the first end portion; forming a bridging molten pool by emitting laser light to at least the first end portion after the forming of the first molten pool, the bridging molten pool bridging over the first end portion and the second portion; and solidifying the bridging molten pool.

公开(公告)号：US20230096039A1

公开(公告)日：2023-03-30

申请号：US18061535

申请日：2022-12-05

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Daeyoul YOON ,  Kazuyuki UMENO ,  Masamitsu KANEKO ,  Jun TERADA ,  Fumika NISHINO ,  Nobuyasu MATSUMOTO ,  Tomomichi YASUOKA ,  Jiang LI

IPC: H01B5/02 ,  H01B13/00 ,  H01R43/02 ,  H01R4/02 ,  H01R4/58 ,  B23K26/322 ,  B23K26/067 ,  B23K26/03

Abstract: A busbar includes: a plurality of members that are platy; and a welding area in which two of the members are welded, the welding area being linear and extending in a first direction, the welding area being provided approximately between both ends of at least one of the two members in the first direction.