Title:
LASER-ARC HYBRID WELDING METHOD WHICH ATTAINS LONG FATIGUE LIFE
Document Type and Number:
Japanese Patent JP2010228000
Kind Code:
A
Abstract:
To provide a laser-arc hybrid welding method which can lengthen the fatigue life of a welded joint twice or more, in the case of hybrid laser arc welding at a welding speed of 100 cm/min or more.
A rolled steel plate for welded construction with a thickness of 6 to 12 mm has a Si content of 0.25% or more by mass and is joined by the laser-arc hybrid welding, using a solid wire having Si content satisfying the following formula: (Si content in steel plate+0.1×Si content in solid wire) ≥0.32.
More Like This:
| JPS6457979 | MAG WELDING METHOD |
| WO/2013/001934 | HYBRID WELDING METHOD FOR T-JOINT USING LASER BEAM WELDING AND ARC WELDING |
| JPS6163375 | GAS SHIELDED WELDING METHOD |
Inventors:
KASUYA TADASHI
Application Number:
JP2009171191A
Publication Date:
October 14, 2010
Filing Date:
July 22, 2009
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
B23K9/16; B23K9/173; B23K26/21; B23K26/32; B23K26/346; B23K35/30; C22C38/00; C22C38/04; C22C38/44; B23K103/04
Domestic Patent References:
| JP2005219062A | 2005-08-18 | |||
| JP2004306084A | 2004-11-04 | |||
| JP2005238282A | 2005-09-08 |
Attorney, Agent or Firm:
Hisataka Tanaka
Shunta Naito
Shunta Naito
Previous Patent: PLUG, PIERCING MILL AND METHOD OF PRODUCING SEAMLESS TUBE USING THE SAME
Next Patent: SOLID WIRE FOR WELDING
Next Patent: SOLID WIRE FOR WELDING