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US 2004/0103665 A1Published application
Combustor liner and method for making thereof
AssigneeGeneral Electric Company
InventorsGilbert Farmer, James A. Groeschen, Ronald D. Redden, Shaun M. DeVane
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Abstract
A combustor liner is provided having first and second annular bands which define an overlapping circumferential joint area, wherein a weld is disposed in the joint area encompassing substantially all of the axial length of the joint area. A method for producing such a combustor liner is also provided.
Claims8
A combustor liner comprising:
- a first annular band having forward and aft ends, said first annular band disposed about a central axis;
- a second annular band having forward and aft ends, said second. annular band disposed about said central axis and having a flange disposed in an overlapping relationship with said first annular band so as to define a circumferentially extending joint area;
- a weld disposed in said joint area comprising a first circumferentially extending weld bead penetrating said first and second annular bands, and a second circumferentially extending weld bead penetrating said first and second annular bands and disposed adjacent to said first circumferentially extending weld bead, wherein at least a portion of said first and second weld beads overlap each other.
A combustor liner comprising:
- a first annular band having forward and aft ends, said first annular band disposed about an axis;
- a second annular band having forward and aft ends, said second annular band disposed about said axis and having a flange disposed in an overlapping relationship with said first annular band so as to define a circumferentially extending joint area;
- a weld disposed in said joint area comprising a circumferentially extending weld bead penetrating said first and second annular bands, wherein said forward section of said second annular band has a first length in an axial direction, and said weld has a second length in an axial direction, said second length being substantially equal to said first length.
A method of assembling a combustor liner, comprising:
- providing a plurality of annular bands disposed about a central axis, each of said bands having a forward and an aft end;
- positioning first and second ones of said annular bands in an overlapping relationship relative to each other, so as to define a circumferentially extending joint area;
- directing a laser beam at said joint area at a first axial position and concurrently rotating said first and second annular bands about said central axis so as to expose the entire circumference of said joint area to said laser beam, whereby a first weld bead is formed;
- and
- directing said laser beam at said joint area at a second axial position while rotating said first and second annular bands about said central axis so as to expose the entire circumference of said first joint area to said laser beam, whereby a second weld bead is formed, said second bead at least partially overlapping said first weld bead.
2 more elements
Dependencies are inferred from the claim text.