Back to results
US 2024/0198443 A1Published application
Arc welded joint and arc welding method
AssigneeJfe Steel Corporation
InventorsKyohei KONISHI, Hiroshi MATSUDA, Koichi TANIGUCHI
Life of this patent
Estimating the term…
Abstract
An arc welded joint and an arc welding method. The arc welded joint has a weld formed by arc welding of an overlap of at least two steel sheets. The throat in the weld and the sheet that is uppermost among the steel sheets satisfy a specified relationship. In a region extending 2.0 mm from a bead toe of the weld in a weld metal direction and also extending 2.0 mm from the bead toe in a base material direction, a slag-covered area ratio is 50% or less.
Claims19
An arc welded joint having a weld formed by arc welding of an overlap of at least two steel sheets,
- wherein a throat in the weld and a sheet that is uppermost among the steel sheets satisfy the following relationship:
- 0.5×t≤a≤1.8×t
- where a is the throat (mm) and t is a thickness (mm) of the uppermost sheet, and
- in a region extending 2.0 mm from a bead toe of the weld in a weld metal direction and extending 2.0 mm from the bead toe in a base material direction, a slag-covered area ratio SRATIO (%) represented by formula (1) is 50% or less;
- SRATIO=100×SSLAG/STOE (1)
- where STOE is a bead toe surface area (mm2) of a weld bead in the region, and SSLAG is part of the bead toe surface area STOE and is a slag surface area (mm2) of a region covered with a slag.
3 more elements
(canceled)
Dependencies are inferred from the claim text.