B - Operations – Transporting – 23 – H
Patent
B - Operations, Transporting
23
H
B23H 9/10 (2006.01) B21D 53/78 (2006.01) B23P 6/00 (2006.01) B23P 15/02 (2006.01) F01D 5/00 (2006.01) F01D 9/02 (2006.01)
Patent
CA 2448465
A method for repairing a turbine nozzle segment having at least one vane disposed between outer and inner bands includes separating the inner band from the nozzle segment, and joining the inner band to a newly manufactured replacement casting having an outer band and at least one vane. The replacement casting includes a mounting platform formed on one end of the vane and a boss formed on the mounting platform. A collar is joined to the inner band and has a slot formed therein. The boss is then inserted into the slot, and the mounting platform is received in a recess formed in the inner band. Joining is completed by joining the boss to the collar and the mounting platform to the inner band. The thickness of the collar is tapered in an axial direction, and a relief is formed in the collar to provide assembly clearance with adjacent components.
Caddell James Walter Jr.
Miller Matthew Nicklus
Norton Brian Alan
Company General Electric
Craig Wilson And Company
LandOfFree
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