Aerospace Applications
Eddy Current NDT in Aerospace
Slide 1
training programme
HOCKING eddy current
Aerospace Applications
What do we do, and who for?u
History of EC NDT in Aerospaceu
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u
Slide 2
Eddy current testing has been used for over 50 years Originally focused on manufactured parts Technique development is now focused on aircraft maintenance activities Need to improve inspection sensitivity and efficiency due to the increasing number of ‘old‘ aircraft retained inHOCKING eddy current service training programme
Aerospace Applications
What do we do, and who for?u
Applications of eddy current NDT in Aerospaceu u u
u u uSlide 3
Surface breaking flaw detection Rotating hole inspection Sub surface flaw and corrosion detection Dual frequency inspection techniques Conductivity measurement Coating thickness measurementtraining programme
HOCKING eddy current
Aerospace Applications
Applications of EC NDT in Aerospaceu
Major advantages of EC NDT to aerospaceu
Ability to inspect for very small flaws u Ability to discriminate between flaw types u No requirement to remove surface coatings u No requirement for couplant between probe and material surface u Small sensors that can be ’manipulated’ HOCKING eddy current training Slide 4 for complicated access requirements programme
Aerospace Applications
Applications of EC NDT in Aerospaceu
Surface breaking flaw detectionu u u u
Airframe Under carriage Engines Aircraft wheels
Slide 5
training programme
HOCKING eddy current
Aerospace Applications
Applications of EC NDT in Aerospaceu
Rotating hole inspectionu
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Manual or rotary drive Incrementing drive Fastener holes, fasteners removed Bolt holes on aircraft structures, undercarriage, wheels etc.training programme
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Slide 6
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The inspection techniqueu
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u u u
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Equipment - Instrument - Probe - Calibration sample Operator requirements Procedure Flaw indications Definition of DEFECT DEFECT action
training programme
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