High frequency ultrasonic waves are introduced into a material and they are reflected back from surfaces or flaws.Reflected sound energy is displayed versus time, and inspector can visualize a cross section of the specimen showing the depth of features that reflect sound.UT having many advantages like, sensitive to both surface and subsurface discontinuities, depth of penetration for flaw detection or measurement is superior to other methods.UT is relies on operator skill of interpretation.

Training

  • This course offers a high practical content and relevant theoretical background to enable students to     achieve a basic understanding of ultrasonic inspection.
  • Candidates on completion of the course will be able to calibrate the flaw detector with both     compression and shear wave probes, record accurate thickness measurements and locate and size     laminations in steel plate. In addition students will be able to select the correct compression / shear    wave probes for the examination of welded butt joints, locate and size defects and finally produce     acceptable reports.
  • This course is ideal for candidate NDT inspectors, consulting engineers, senior managers as well as     those directly involved in starting a career in non-destructive testing activities.

Theory

  • Basic concepts
  • Nature of sound
  • Relevant formulae
  • Wave propagation
  • Types of display
  • Operation of flaw detectors, probes, couplants
  • Defect location and sizing methods
  • Use of plotting systems
  • Relevant standards
  • Reporting method
  • Material technology
  • Assessment of discontinuities
Practice
  • Acquaintance with the relevant equipment (A-scan devices, probes, couplants, calibration blocks)
  • Calibration of the flaw detector
  • Ultrasonic testing in several training samples
  • Location and assessment of discontinuities
  • Report
  • Crosschecking of UT findings with radiographs