Metallic Materials

The Necessity of Ultrasonic Testing in Welding of Metallic Materials The Necessity of Using Ultrasonic Testing in Welding of Metallic Materials – There are many problems in the welding process of metal materials, the most important of which are three aspects: internal defects, macro defects, micro defects. In order to better analyze the importance of using ultrasonic nondestructive testing, we first look at these three aspects of defects in detail. Internal defects in welding of metallic materials The internal defects of the welding structure of metal materials are: slag residue left in the weld during workpiece welding, and one is in the process of material welding. A hole formed by encasing a gas in molten metal. Another is in the workpiece welding process between the material and the formation of cracks. Macroscopic defects in welding of metallic materials The macroscopic defects of the welding structure of metallic materials are: the […]