Have your materials already been inspected for possible cracks or internal defects? Do these materials have complex shapes? Vinçotte carries out the necessary investigations to detect defects.
Ultrasonic testing is often done to detect cracks or internal defects in materials. The ultrasonic equipment generates sound waves for testing purposes. Sound is mainly propagated in a rectilinear manner. Sound waves are reflected at the point where there is a transition between two different materials - this is precisely the characteristic that is used to detect flaws in materials. The ultrasonic sound used has a frequency between 0.5 and 10 MHz.
Piezoelectric crystals are used to generate ultrasonic sound waves. AC voltage applied to a piezoelectric crystal makes it vibrate, thereby creating an ultrasonic sound signal that can be used for testing purposes. The crystal is incorporated into a probe that is applied to the surface to be tested. The ultrasonic sound waves emitted by the crystal enter the material, and rebound on the rear wall or on defects. If a workpiece contains impurities or defects, the ultrasound cannot pass through the workpiece undisturbed, and will rebound. The piezo-crystal converts the return signals detected by the probe into a voltage that generates an echo on an oscilloscope or digital screen.
This service offers you the following benefits:
ASME, EN and ISO standards. Other national standards.
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