Title:
ARC WELDING METHOD, AND METHOD FOR INSPECTING WELDING STRENGTH OF JOINED ARTICLE WELDED THROUGH SAID ARC WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2024/003992
Kind Code:
A1
Abstract:
An arc welding method according to the present invention includes fusing and joining at least part of a workpiece in which a plurality of non-ferrous metal sheets are stacked. The workpiece has a processing hole at a welding site. The processing hole is a non-through-hole that passes through an arc-radiation-side non-ferrous metal sheet and extends to a non-ferrous metal sheet on the side farthest from an arc welding implement, at least part of the farthest-side non-ferrous metal sheet being recessed. The processing hole is irradiated with an arc from the open side, and the arc-radiation-side non-ferrous metal sheet is fused and welded to the back surface of the farthest-side non-ferrous metal sheet without using a backing jig on the side opposite from the workpiece. It is therefore possible to provide an arc welding method with which it is possible to carry out welding without using a backing tool and moreover to carry out welding even when there are constraints on a back-surface-side gap in a workpiece.
Inventors:
GAO LI (JP)
MORI YOUICHI (JP)
ICHIKAWA MITSUO (JP)
NONAKA SHINTARO (JP)
HAMAGUCHI YUJI (JP)
MORI YOUICHI (JP)
ICHIKAWA MITSUO (JP)
NONAKA SHINTARO (JP)
HAMAGUCHI YUJI (JP)
Application Number:
PCT/JP2022/025596
Publication Date:
January 04, 2024
Filing Date:
June 27, 2022
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
B23K9/007; B23K9/02
Domestic Patent References:
| WO2020213492A1 | 2020-10-22 | |||
| WO2020213491A1 | 2020-10-22 | |||
| WO2018030272A1 | 2018-02-15 |
Foreign References:
| JPH0639542A | 1994-02-15 | |||
| JP2021037550A | 2021-03-11 |
Attorney, Agent or Firm:
MATOBA, Motonori (JP)
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