Title:
ONE-SIDED SUBMERGED ARC WELDING METHOD, WELDED JOINT, AND PRODUCTION METHOD FOR WELDED JOINT
Document Type and Number:
WIPO Patent Application WO/2023/162356
Kind Code:
A1
Abstract:
Provided is a submerged arc welding method that makes it possible to achieve excellent mechanical characteristics and high productivity when thick steel sheets for shipbuilding, construction, or the like are to undergo high-heat-input welding. Also provided are a welded joint produced using the welding method and a production method for the welded joint. According to the present invention, a one-sided submerged arc welding method for welding two abutting steel sheets (1a, 1b) involves forming grooves on the front surface side and the back surface side of the steel sheets, forming root surfaces (3a, 3b) between the groove on the front surface side and the groove on the back surface side, and welding from the front surface side. The root surface height (r) is preferably 2–5 mm, and the groove depth (k) on the back surface side is preferably 2–5 mm.
Inventors:
ANDO AKIYOSHI (JP)
Application Number:
PCT/JP2022/041369
Publication Date:
August 31, 2023
Filing Date:
November 07, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K9/18; B23K33/00
Foreign References:
| JP2011235350A | 2011-11-24 | |||
| JP2007107055A | 2007-04-26 | |||
| JP2009039734A | 2009-02-26 | |||
| JPS5149581B1 | 1976-12-27 | |||
| JPH091343A | 1997-01-07 |
Attorney, Agent or Firm:
GINZA MARONIE P.C. (JP)
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