مدت دوره 2 روز

MANUFACTURING DISCONTINUITIES
Types of Discontinuities: Inherent, Processing and Service
Casting Discontinuities: Hot Tear, Cold Shut, Porosity, Shrinkage
Primary Processing Discontinuities including discontinuities in Rolling, Forging, Drawing, Extruding
Secondary Processing Discontinuities including discontinuities in Grinding, Heat Treating, Machining, Welding, Plating
Service Discontinuities:- Erosion, Wear, Fatigue, Corrosion, Creep
GENERAL KNOWLEDGE OF ET
Electrical Parameters
Resistance
Inductance
Impedance
Electromagnetism
Faradays Law
Lenzs Law
Eddy Current Theory
Generation of Eddy Currents
Impedance changes by Eddy Currents
Effect of change of impedance on instrumentation
Impedance Curves
Conductivity Curve
Lift Off Curve
Permeability
Types of Eddy Current Sensing Elements
Probes
Absolute-
Differential -
Lift-off
Theory of operation
Materials
Inspection of Non-Ferromagnetic Materials
Inspection of Ferromagnetic Materials
Special Probes
Lift Off Insensitive
Fastener Probes- Ring Probe
Calibration Standards
Conductivity Standards
EDM notch Surface Standards
Applications
Surface Inspection
Inspection of Airframes
Airframe Fastener Inspection
Turbine Blade Inspection
Inspection of Petrochemical Piping
Level II Course Content
Electromagnetic Testing
Fundamentals
Electromagnetic field generation
Properties of eddy current
Effects of varying frequency
Phase discrimination
Sensors Electromagnetic testing
Basic types of equipment; types of read out
Reference standards
Applications and test result interpretation
Flaw detection
Conductivity and permeability sorting
Thickness gauging
Process control