Method and apparatus for correcting distortion in gas...

Details Method and apparatus for correcting distortion in gas... Method and apparatus for correcting distortion in gas...

B - Operations, Transporting

21

K

26/148

B21K 3/04 (2006.01) B21J 5/00 (2006.01) B21J 5/02 (2006.01) B21K 29/00 (2006.01) B23P 15/02 (2006.01)

Patent

CA 1079044

METHOD AND APPARATUS FOR CORRECTING DISTORTION IN GAS TURBINE ENGINE BLADES Abstract of the Disclosure Gas turbine engine blades and single-die cavities are dynamically balanced on a rotor, transferred to a neutral atmosphere heated chamber and rotated. The centrifugal force distributes sufficient stress on both the blade's platform and air- foil to correct critical geometrical characteristics by creep forming in a relatively short time. The process is not affected by the blade surface irregularities, which cause die damage in conventional opposed-die forming due to high stress concentrations.

291789

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