Method of repairing turbine blades

Details Method of repairing turbine blades Method of repairing turbine blades

1984-06-08

1989-09-19

Crane, Daniel C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

2940218, 2940221, 416224, B23P 1502

Patent

active

048668281

ABSTRACT:
A method of repairing a turbine blade of the type having one or more lacing wire holes comprising the steps of welding additional metal to the blade, subjecting the blade to a stress relieving heat treatment process before which the or each lacing wire hole is effectively eliminated by filling the hole or holes with material the same as or at least compatible with the material from which the blade is made. The turbine blade may be subjected to the application of mechanical forces to restore its form and machining to restore its shape can be gauged to ensure both its form and shape is correct.

REFERENCES:
patent: 1751570 (1930-03-01), Allen
patent: 2632944 (1953-03-01), Kittelson
patent: 3449816 (1969-06-01), Swick et al.
patent: 3528200 (1970-09-01), Allen et al.
patent: 3564689 (1971-02-01), Hirtenlechner
patent: 3660882 (1972-05-01), Widowitz et al.
patent: 4028787 (1977-06-01), Cretella et al.
Oates, J. A., Modern Welding Practice, vol. II, Caxton Publishing Co., London, TT 21103 1958, pp. 298, 299.

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