UT – Ultrasonic Non-Destructive Testing Service
UT Ultrasonic Testing is electromechanical testing using the principle of ultrasonic vibration propagation to detect and characterise flaws, inhomogeneities of density or elasticity, and thickness in materials. It is very sensitive and needs a skilled NDT technician to set up the equipment, conduct the tests and interpret the results. Test equipment is relatively expensive, requires annual calibration, and the technician is trained and certified to high standards to conduct this work.
UT is typically applied to solid materials to detect flaws such as inclusions, deep cracks. We can use this method to locate and characterise flaws and material variations in:
- tubing e.g. pipes, heat exchangers, boiler tubes, oil cooler tubes, chiller tubes;
- aluminium structures e.g. wings spar attach points
- airfoil sections e.g. rolled titanium and composite blades of aircraft fan jet engines and propellers
- welds e.g. pipeline welds (using phased array methods)
- shafts e.g. swing and drive shafts
The UT technique is portable and suitable for on-site applications.