Top 7 Methods of Non-Destructive Weld Testing
In industries such as construction, manufacturing, and oil & gas, weld quality is critical for both safety and performance. That’s where Non-Destructive Testing (NDT) comes in. Unlike destructive testing, NDT techniques evaluate welds without causing damage, ensuring structural integrity while saving time and money. Here are the top 7 methods of non-destructive weld testing and the best situations to use each. 1. Visual Inspection (VT) When to use it: At the start of any project and during routine checks. Visual inspection is the most basic yet effective method of weld testing. It involves checking the weld bead, surface finish, and dimensions for visible defects like cracks, undercuts, or porosity. Although simple, it’s often the first step before more advanced tests. 2. Ultrasonic Testing (UT) When to use it: For detecting internal flaws in thick materials. Ultrasonic waves are used to penetrate the weld, and reflections from imperfections are capture...