Eddy Current Testing
Eddy current testing allows detection of cracks in a large variety of conductive materials, either ferromagnetic or non-ferromagnetic, whereas other nondestructive methods like magnetic particle technique are limited to metals with ferromagnetic properties.
In the eddy current testing method, an alternating electric current is induced in the test piece, by a test coil and the changes in those current are measured. The changes occur because of the presence of discontinuities, resistivity, caused by changes in chemical composition, heat treatment, hardness. The main advantage of this testing technique is that surface and subsurface defects can be revealed reliably and instantly during the test. Another advantage is that a thorough surface preparation is not required.
Performing an eddy current inspection of a wheel hub (rim) bead seat area for cracking. The bead seat of a hub is the most stressed area under various loading conditions. A special probe that contact the critical profile of the beat seat is used to enable scanning of the whole area along the radius after a complete rotation of the turn table.
ABOUT US
We are an NDT company approved by the Kenya Civil Aviation Authority www.kcaa.or.ke (KCAA) and Tanzania Civil Aviation Authority www.tcaa.go.tz (TCAA) as an AMO to offer specialized services of non-destructive testing in the aviation industry.