Title:
突き合わせ溶接部並びに融接および摩擦撹拌溶接を使用する製造方法
Document Type and Number:
Japanese Patent JP2012513306
Kind Code:
A
Abstract:
Provided are butt welds and methods of making such butt welds using a combination of fusion root welding and friction stir welding to yield welds with decreased propensity for dropout during friction stir welding without the need for a back-up support plate. In one form of the present disclosure, the butt weld includes: two or more abutting structural steel components beveled on faying surfaces on one side of the components to form a suitably shaped fusion root weld groove and unbeveled on faying surfaces on the opposite side of the components and interconnected with a first fusion root weld on the beveled side of the components and a second friction stir weld on the unbeveled side of the components, wherein the first fusion root weld has a width ranging from 7 mm to 30 mm, a penetration depth ranging from 2 mm to 20 mm, and an overfill ranging from 2 mm to 5 mm, and wherein the stir zone of the second friction stir weld penetrates the first fusion root weld. The butt welds and methods of making find application in joining linepipe for oil and gas production.
Inventors:
Fairchild, Douglas, Pea.
Ford, Stephen, Jay.
Kumar, Amit
Nisley, Nazan, Yi.
Biary, Nicholas, Yi.
Macia, Mario, Elle.
Ford, Stephen, Jay.
Kumar, Amit
Nisley, Nazan, Yi.
Biary, Nicholas, Yi.
Macia, Mario, Elle.
Application Number:
JP2011542145A
Publication Date:
June 14, 2012
Filing Date:
December 23, 2009
Export Citation:
Assignee:
EXXON RESEARCH AND ENGINEERING COMPANY
International Classes:
B23K20/12; B23K28/02; B23K33/00
Domestic Patent References:
| JP2006239734A | 2006-09-14 |
Attorney, Agent or Firm:
Kenji Kawabi