Title:
GAS-SHIELDED ARC WELDING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/022585
Kind Code:
A1
Abstract:
The present invention relates to a gas shielded arc welding method for feeding a consumable electrode via a welding torch and performing welding while a shielding gas is flowing, wherein the welding torch includes a nozzle, the inside diameter of the nozzle is 15 mm or greater, the nozzle-base metal distance between the tip of the nozzle and material to be welded is 22 mm or less, and a ratio expressed by (inside diameter of nozzle/nozzle-base material distance) is 0.7 - 1.9. Thus, it is possible to suppress oxidation on bead surfaces directly after welding or oxidation when atmospheric air is drawn in and reduce slag while increasing the atmospheric shielding effect by the shielding gas.
Inventors:
MIYATA MINORU
SUZUKI REIICHI
TANAKA MASAAKI
FUKAHORI MITSUGI
OGAWA TAKASHI
SUZUKI REIICHI
TANAKA MASAAKI
FUKAHORI MITSUGI
OGAWA TAKASHI
Application Number:
PCT/JP2016/071977
Publication Date:
February 09, 2017
Filing Date:
July 27, 2016
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
MAZDA MOTOR (JP)
MAZDA MOTOR (JP)
International Classes:
B23K9/173; B23K9/09; B23K9/16; B23K9/23; B23K35/30
Foreign References:
| JPH0550247A | 1993-03-02 | |||
| JPH1076392A | 1998-03-24 | |||
| JPH05305476A | 1993-11-19 | |||
| JPH07232294A | 1995-09-05 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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