Patent ID: 8359925
Filing Date: 2013-01-29
Classification: B23K,F01D,F05D,G01N

Abstract:
1. A method for inspecting a weld joining a first rotor disk made of nickel alloy and having an inner surface and an outer surface concentric with a rotor's longitudinal axis to a second rotor disk having an inner surface and an outer surface concentric with the rotor's longitudinal axis, wherein the weld, made of nickel alloy, fills a radial gap between said first and second rotor disks and has a dissimilar microstructure to either of said first and second rotor disks, the method comprising: a) forming at least a first slot in the first rotor disk part way through the first rotor disk from either said inner surface or said outer surface of said first rotor disk; and b) passing an inspection signal from said first slot to said weld to inspect said weld for defects, wherein the first slot extends no more than one half of a radial weld depth.