Outlines

•  Principles of Magnets and Magnetic Fields
•  Theory of magnetic fields
•  Earth’s magnetic field
•  Magnetic fields around magnetized materials
•  Theory of magnetism
•  Magnetic poles
•  Law of magnetism
•  Materials influenced by magnetic fields
•  Ferromagnetic
•  Paramagnetic
•  Magnetic characteristics of nonferrous materials
•  Terminology associated with magnetic particle testing
•  Characteristics of Magnetic Fields
•  Bar magnet
•  Ring magnet
•  Effect of Discontinuities of Materials
•  Surface cracks
•  Scratches
•  Subsurface defects
•  Magnetization by Means of Electric Current
•  Circular field
•  Field around a straight conductor
•  Right-hand rule
•  Field in parts through which current flows
•  Long, solid, cylindrical, regular parts
•  Irregularly shaped parts
•  Tubular parts
•  Parts containing machined holes, slots, etc.
•  Methods of inducing current flow in parts
•  Contact plates
•  Prods
•  Discontinuities commonly discovered by circular fields
•  Longitudinal field
•  Field produced by current flow in a coil
•  Field direction in a current-carrying coil
•  Field strength in a current-carrying coil
•  Discontinuities commonly discovered by longitudinal fields
•  Advantages of longitudinal magnetization
•  Disadvantages of longitudinal magnetization
•  Selecting the Proper Method of Magnetization
•  Alloy, shape and condition of part
•  Type of magnetizing current
•  Direction of magnetic field
•  Sequence of operations
•  Value of flux density
•  Inspection Materials
•  Wet particles
•  Dry particles
•  Principles of Demagnetization
•  Residual magnetism
•  Reasons for requiring demagnetization
•  Longitudinal and circular residual fields
•  Basic principles of demagnetization
•  Retentivity and coercive force
•  Methods of demagnetization
•  Magnetic Particle Testing Equipment
•  Equipment selection considerations
•  Type of magnetizing current
•  Location and nature of test
•  Test materials used
•  Purpose of test
•  Area inspected
•  Manual inspection equipment
•  Medium- and heavy-duty equipment
•  Stationary equipment
•  Mechanized inspection equipment
•  Semiautomatic inspection equipment
•  Single-purpose semiautomatic equipment
•  Multipurpose semiautomatic equipment
•  Fully automatic equipment
•  Types of Discontinuities Detected by Magnetic Particle Testing
•  Inclusions
•  Blowholes
•  Porosity
•  Flakes
•  5 Cracks
•  Pipes
•  Laminations
•  Laps
•  Forging bursts
•  Voids
•  Magnetic Particle Test Indications and Interpretations
•  Indications of nonmetallic inclusions
•  Indications of cracks
•  Indications of surface seams
•  Indications of laminations
•  Indications of laps
•  Indications of bursts and flakes
•  Indications of porosity
•  Nonrelevant indications

Who Should Attend

Engineers and highly qualified technicians working, in the design, manufacturing and testing of welded structures.

Duration

3 Days