Title:
ガスシールドアーク溶接方法
Document Type and Number:
Japanese Patent JP7146571
Kind Code:
B2
Abstract:
A gas shielded arc welding method includes welding a steel sheet with a tensile strength of 780 MPa or more using a shielding gas containing Ar in an amount of 92 vol. % to 99.5 vol. %. In the gas shielded arc welding method, a value calculated from the following expression (1) is 0.20 or more: {√v/(D/2)2}×10−{(100−CAr)×I/v}×0.1 . . . (1), where CAr represents an Ar content (vol. %) in the shielding gas, D represents an inner diameter (mm) of a nozzle from which the shielding gas is supplied, v represents a welding speed (cm/min), and I represents a welding current (A).
Inventors:
山▲崎▼ 亮太
Kazuya Inumi
Masaaki Tanaka
Fukahori Mitsugu
Kazuya Inumi
Masaaki Tanaka
Fukahori Mitsugu
Application Number:
JP2018201245A
Publication Date:
October 04, 2022
Filing Date:
October 25, 2018
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
Mazda Corporation Inc
Mazda Corporation Inc
International Classes:
B23K9/23; B23K9/16
Domestic Patent References:
| JP2017126657A1 | ||||
| JP2017030016A | ||||
| JP2016168616A |
Foreign References:
| US20180043456 |
Attorney, Agent or Firm:
Patent business corporation glory patent office