Turbine nozzle segment and method of repairing same
AssigneeGeneral Electric Company
InventorsJames W. Caddell, Jr., James M. Caldwell
Life of this patent
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Abstract
A method for repairing a turbine nozzle segment having at least two vanes disposed between outer and inner bands includes the steps of separating the nozzle segment into a first singlet containing a repairable vane and a second singlet containing a non-repairable vane, and joining the first singlet to a newly manufactured singlet having a configuration that is similar to the second singlet.
Claims18
A method of repairing a turbine nozzle segment having at least two vanes disposed between outer and inner bands, said method comprising the steps of:
- separating said nozzle segment into a first singlet containing one of said vanes and a second singlet containing another one of said vanes;
- and
- joining said first singlet to a newly manufactured singlet having a configuration that is similar to said second singlet.
A method of repairing a turbine nozzle segment having a repairable vane and a non-repairable vane disposed between a first outer band and a first inner band, said method comprising the steps of:
- providing a newly manufactured singlet including a vane disposed between a second outer band having a first joining surface and a second inner band having a second joining surface;
- cutting said first outer band and said first inner band of said nozzle segment in two between said two vanes so as to separate said nozzle segment into a first singlet containing said repairable vane and a second singlet containing said non-repairable vane, wherein said first singlet includes a third joining surface on said first outer band and a fourth joining surface on said first inner band;
- repairing damage in said first singlet;
- and
- joining said first singlet to said newly manufactured singlet by bonding said first and third joining surfaces together and said second and fourth joining surfaces together.
Dependencies are inferred from the claim text.