Title:
ARC WELDED JOINT AND ARC WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/210335
Kind Code:
A1
Abstract:
Provided are an arc welded joint and an arc welding method. An arc welded joint according to the present invention has: a slag covering area ratio SRATIO (%) of 15% or less that is calculated by the equation SRATIO=100×SSLAG/SBEAD, where the area of the surface of a weld bead formed by welding a steel sheet by arc welding is defined as bead surface area SBEAD (mm2), and the area of a region, of the bead surface area SBEAD, covered by slag is defined as slag surface area SSLAG (mm2); and a bead width ratio WRATIO (%) of 60% or more that is calculated by the equation WRATIO=100×WMIN/WMAX, using both a maximum value WMAX (mm) and a minimum value WMIN (mm) of the bead width in a direction perpendicular to a weld line of the weld bead.
Inventors:
KONISHI KYOHEI (JP)
SAWANISHI CHIKAUMI (JP)
MATSUDA HIROSHI (JP)
MURAKAMI YOSHIAKI (JP)
SAWANISHI CHIKAUMI (JP)
MATSUDA HIROSHI (JP)
MURAKAMI YOSHIAKI (JP)
Application Number:
PCT/JP2021/010961
Publication Date:
October 21, 2021
Filing Date:
March 18, 2021
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K9/073; B23K9/173
Domestic Patent References:
| WO2014126246A1 | 2014-08-21 |
Foreign References:
| JPS62248568A | 1987-10-29 | |||
| JP2009255125A | 2009-11-05 | |||
| JP2018024019A | 2018-02-15 | |||
| JPH0920994A | 1997-01-21 | |||
| JPH0833982A | 1996-02-06 | |||
| JPH0833997A | 1996-02-06 | |||
| JP5549615B2 | 2014-07-16 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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