US 12,465,990 B2
Arc welding method, and method for inspecting welding strength of joint welded using arc welding method
Li Gao, Kanagawa (JP); Youichi Mori, Kanagawa (JP); Mitsuo Ichikawa, Kanagawa (JP); Shintaro Nonaka, Kanagawa (JP); and Yuji Hamaguchi, Kanagawa (JP)
Assigned to Nissan Motor Co., Ltd., Kanagawa (JP)
Appl. No. 18/865,806
Filed by Nissan Motor Co., Ltd., Yokohama (JP)
PCT Filed Jun. 27, 2022, PCT No. PCT/JP2022/025596
§ 371(c)(1), (2) Date Nov. 14, 2024,
PCT Pub. No. WO2024/003992, PCT Pub. Date Jan. 4, 2024.
Prior Publication US 2025/0256343 A1, Aug. 14, 2025
Int. Cl. B23K 9/007 (2006.01); B23K 9/00 (2006.01); B23K 9/02 (2006.01); B23K 9/235 (2006.01); B23K 31/12 (2006.01); B23K 103/08 (2006.01); B23K 103/10 (2006.01); B23K 103/14 (2006.01)
CPC B23K 9/007 (2013.01) [B23K 9/00 (2013.01); B23K 9/02 (2013.01); B23K 9/235 (2013.01); B23K 31/125 (2013.01); B23K 2103/08 (2018.08); B23K 2103/10 (2018.08); B23K 2103/14 (2018.08); B23K 2103/15 (2018.08)] 5 Claims
OG exemplary drawing
 
1. An arc welding method for melting and joining at least a part of a workpiece having a plurality of non-ferrous metal plates that overlap one another, the arc welding method comprising:
forming a machined hole in a first portion of the workpiece, the machined hole being a non-through-hole that penetrates each of the plurality of non-ferrous metal plates except a bottommost non-ferrous metal plate among the plurality of non-ferrous metal plates, the bottommost non-ferrous metal plate being disposed on a side farthest from an arc welder and the non-through-hole including a recess portion formed in a portion of the bottommost non-ferrous metal plate; and
forming a weld by causing arc radiation from an opening side of the machined hole to melt a back surface of the bottommost non-ferrous metal plate without using a backing jig on an opposite side of the workpiece.