Apparatus and methods for inspecting cooling slot defects in...

Details Apparatus and methods for inspecting cooling slot defects in... Apparatus and methods for inspecting cooling slot defects in...

2005-06-10

2009-08-25

LeDynh, Bot (Department: 2862)

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

C324S228000

Reexamination Certificate

active

07579830

ABSTRACT:
A probe is pulled along a cooling slot of a turbine wheel to detect defects along the slot surfaces. The cooling slot extends radially inwardly of the bases of both the dovetails and dovetail slots. A housing assembly is releasably coupled to the rim of the turbine wheel and a motor draws the probe along the cooling slot at constant speed. A guide and brushes on the probe serve to bias the probe radially outwardly against the surfaces to be inspected as the probe is drawn along the cooling slot.

REFERENCES:
patent: 4706020 (1987-11-01), Viertl et al.
patent: 6426622 (2002-07-01), Givens et al.
patent: 6477773 (2002-11-01), Wilson et al.
patent: 6545467 (2003-04-01), Batzinger et al.
patent: 6608478 (2003-08-01), Dziech et al.
patent: 6952094 (2005-10-01), Viertl

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