公开(公告)号：US11267064B2

公开(公告)日：2022-03-08

申请号：US16326698

申请日：2017-08-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuya Furuyama ,  Shigeki Yonemori ,  Atsuhiro Kawamoto ,  Junji Fujiwara ,  Noriyuki Matsuoka

IPC: B23K9/073 ,  B23K9/173 ,  B23K9/09 ,  B23K9/12 ,  B23K9/095 ,  B23K9/133

Abstract: A method of controlling arc welding with a consumable electrode includes repeating the following periods in sequence: a short-circuit welding period to perform short-circuit arc welding; a pulse welding period to perform pulse welding; and a cooling period in which the welding current output is zero.

公开(公告)号：US11806806B2

公开(公告)日：2023-11-07

申请号：US16086996

申请日：2017-03-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Atsuhiro Kawamoto ,  Junji Fujiwara ,  Shigeki Yonemori

IPC: B32B3/26 ,  B32B15/01 ,  B32B15/08 ,  B23K103/04 ,  B23K101/00 ,  B23K26/21 ,  B29C65/16 ,  B23K26/324 ,  B23K26/323

CPC classification number: B23K26/21 ,  B23K26/323 ,  B23K26/324 ,  B29C65/16 ,  B32B3/266 ,  B32B15/01 ,  B32B15/08 ,  B23K2101/006 ,  B23K2103/04 ,  B32B2250/40

Abstract: A joint structure includes a first material (1), a second material (2) weldable to the first material, and a third material (3) at least a portion of which being sandwiched between the first material and the second material, having a through opening portion at the sandwiched portion, and including a material that is difficult to be welded to both the first material and the second material, the first material and the second material welded the via through opening portion. At least one of the first material and the second material is provided with a protrusion (14) inserted in the through opening portion. A first gap (4) is provided between an inner peripheral surface of the through opening portion and the protrusion. A second gap (5) is provided between the first material and the second material, the second gap having a size depending on a plate thickness of the first material in a region corresponding to the protrusion. Under a condition in which the second gap has a size of greater than or equal to 0.1 mm but less than or equal to 40% of the plate thickness of the first material in the region, the first material and the second material are welded by emitting a laser beam from a side on which the first material is disposed.