COURSE OVERVIEW

 

This practical and highly-interactive course includes practical sessions and exercises where participants carryout welding inspection. Theory learnt in the class will be applied using our state-of-the-art simulators. 

 

This course is designed to provide participants with an up-to-date overview on welding defects analysis. It covers the identification of various welding imperfections and defects; the relevant welding technology related to visual inspection, documentation in welding and code and standards related to inspection requirements; the proper inspection of parent materials and consumables; the visual inspection of welds; the reporting and assessing with specified acceptance criteria; the factors which influence the quality of fusion welds in steels; and the characteristics of commonly used welding process in relation to quality control and specifications of drawing instructions and symbols. 

 

The course will further discuss the validity of a welding procedure; the origin of weld defects; the features of a fracture surface; the detailed reports plan, the use of skilled inspectors and NDT personnel; the various types of weld defects and how it is expected to appear on a radiographic image and what causes them; the gas pour, linear porosity and lack of fusion; and the various types of cracks and weld repair methods. 

 

During the course, participants will be able to cover the theoretical background of phased array applications; the scan data for location and size of defects in typical welded butt joints; the basic theory of X- and gamma radiography and radiograph; the proper radiographic techniques and the difference between film faults and defect indications; the basic principles of magnetic particles inspection methods; the magnetic particle inspection and detection of cracks, surface and near-surface in welds; the PWSCC effects on reactor welds; the reactor vessel nozzle weld problems, the hellion time effect on aging reactor welds; and the stream generator weld problems.