Inspection of Weld Bead using High Speed Laser Vision Sensor

  • Lee, H. (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • S. Ahn (Department of Train Operation & Mechatronics, Korea National Railroad College) ;
  • K. Sung (Dept. of Precision Mechanical Engineering, Hanyang University) ;
  • S. Rhee (School of Mechanical Engineering, Hanyang University)
  • Published : 2003.12.01


Visual inspection using laser vision sensor was proposed for fast and economic inspection and was verified experimentally. Welding is one of the most important manufacturing processes for automotive and electronics industries as well as heavy industries. The weld zone influences the reliability of the products. There are two kinds of weld inspection tests, destructive and non­destructive test. Even though the destructive test is much more reliable, the product should be destroyed, and hence the non­destructive test such as ultrasonic or X­ray test was used to overcome this problem. However, these tests are not used for real time inspection.