Appeal 2007-2257
Application 11/118,509
Appellants’ invention relates to a method of repairing a part of a gas
turbine engine. Representative independent claims 8 and 24, as presented in
the Brief, appear below:
8. A method of making a rotating part of a gas turbine engine,
comprising the steps of:
providing a rotating part made from a wrought material and having
a contact area;
providing a piece of high strength wrought material having a
contact area;
resistance heating said contact area of said material and said
contact area of said part; and
pressing said contact area of said material against said contact area
of said part;
wherein said material bonds to said part.
24. A method of repairing a part of a gas turbine engine comprising
the steps of:
providing a part made from a wrought material and having a contact
area;
providing a fixture having a base and a replacement section formed
from a high strength wrought material, said replacement section having a
contact area;
heating said contact area of said replacement section and said contact
area of said part by applying an electrical current to said replacement section
and said part;
applying pressure to said fixture to move said fixture towards said part
until said contact area of said replacement section comes into contact with
2
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