Custom Solution for Testing Large Diameter Tube
The customer, a tube manufacturer in India, faced difficulties when it came to performing electromagnetic testing on larger tubes, with diameters ranging from 180 mm to 250 mm. Their previous testing system, which was based on eddy current testing (ECT) with an encircling coil, was effective for tubes with diameters up to 180 mm. However, the sensitivity of the system, which is inversely proportional to the tube diameter, significantly decreased when testing larger tubes. The customer needed a solution that would maintain the same level of defect detection sensitivity while accommodating the increased tube diameter. This posed a challenge for achieving the required test defect size, through drilled holes (TDH), consistency and defect sensitivity with heavier wall thicknesses.