UT (Ultrasonic Testing)

 Basic principles of sound; generation and detection of sound; behaviour of sound in a material, factors affecting propagation of sound; the flaw detector, calibration blocks/DAC blocks; use of angled beam probes for weld scanning, calibration of equipments; welding processes and weld defects; practical exercises on test specimens containing simulated flaws; examination of parent plate, butt welds, interpretation and evaluation; instruction writing.

Outline:

• To explain the theoretical background of the techniques
• To calibrate ultrasonic equipment
• To measure the thickness of steel plates and determine levels of attenuation
• To locate and evaluate laminations
• To select the correct type of probe to examine welded butt joints in steel plate/pipes
• To report on the location and size of defects in typical welded butt joints
• To interpret code requirements