Title:
GAS-SHIELDED ARC WELDING METHOD AND METHOD FOR WELDED-JOINT PRODUCTION
Document Type and Number:
WIPO Patent Application WO/2024/095613
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a gas-shielded arc welding method and a method for welded-joint production which make it possible, without using any special device, to prevent oxygen from coming into a weld metal and inhibit slag formation and to stably obtain a welded joint having a bead of a satisfactory shape. The gas-shielded arc welding method is pulsed welding in which a pulse peak current (Ip) and a pulse base current (Ib) are periodically repeated, wherein the welding speed (V) and the short-circuit frequency (F) satisfy a given expression and Ar gas having a purity of 98 vol% or higher is used as a shielding gas.
Inventors:
KONISHI KYOHEI (JP)
SAWANISHI CHIKAUMI (JP)
TANIGUCHI KOICHI (JP)
SAWANISHI CHIKAUMI (JP)
TANIGUCHI KOICHI (JP)
Application Number:
PCT/JP2023/033084
Publication Date:
May 10, 2024
Filing Date:
September 11, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K9/073; B23K9/09; B23K9/095; B23K9/16
Domestic Patent References:
| WO2018051911A1 | 2018-03-22 |
Foreign References:
| JP2009262197A | 2009-11-12 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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