Title:
METHOD FOR MANUFACTURING WELDED STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2021/182516
Kind Code:
A1
Abstract:
This method is for manufacturing a welded structure having a welded metal portion extending along a first direction, and a first portion and second portion which sandwich the welded metal portion therebetween in a second direction intersecting the first direction. This method for manufacturing a welded structure is provided with: a step for forming the welded metal portion by moving a welding torch along the first direction, from one side in the first direction to the other side in the first direction; and a step for moving one or more auxiliary torches along the first direction, from one side in the first direction to the other side in the first direction, and thereby heating but not melting the first portion and/or the second portion, during at least a portion of the time that the welding torch is moving. Each of the positions of the one or more auxiliary torches in the first direction is offset from the position of the welding torch in the first direction.
Inventors:
SHIBAHARA MASAKAZU (JP)
IKUSHIMA KAZUKI (JP)
MITSUI YUTA (JP)
MAEDA SHINTARO (JP)
IKUSHIMA KAZUKI (JP)
MITSUI YUTA (JP)
MAEDA SHINTARO (JP)
Application Number:
PCT/JP2021/009544
Publication Date:
September 16, 2021
Filing Date:
March 10, 2021
Export Citation:
Assignee:
UNIV OSAKA PUBLIC CORP (JP)
International Classes:
B23K9/235
Domestic Patent References:
| WO2015198405A1 | 2015-12-30 |
Foreign References:
| JPH09192839A | 1997-07-29 | |||
| JPH0452079A | 1992-02-20 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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