How To Test Welding Quality. Weld testing even if not required by specifications helps welders to check and improve their own technique. Visual inspection evaluates surface features such as the external weld bead and axial alignment.
Visual Scanning visual check to confirm that the welds are as per the drawings ie. Visual inspection evaluates surface features such as the external weld bead and axial alignment. Testing of welds is used to verify that the welding procedure is under control.
Check use of pre heat to slow the cooling rate and to minimize distortion.
Cheaper 22 23. Advantages of NDT Nondestructive for weld quality Inexpensive at labor expense only. Check for defective materials qualitysizetypes of the materials. For example defects in a bead greatly affect not only appearance but also strength.