Research and Application of Automatic Welding of Extremely Thick Plate

The path and process parameters of the automatic welding procedure are obtained by multipass welding process test for the 100 mm-and 120 mm-thick plates. The results of ultrasonic testing, tensile test, impact test, hardness test and bend test can meet the requirements. The 5-meter long product is welded by the automatic robot and the qualified rate is above 90%.