The table below summarizes the scientific principles, common uses and the advantages and disadvantages for some of the most often used NDT methods. Presentation on Radiography Testing By Abhishek A V abhishek.agyarapu@gmail.com 2. It does not need power supply during transillumination, which is convenient for field work. When the thickness is less than 30 mm, the sensitivity of the display defect is high, but the equipment is complicated, the cost is large, and the penetration ability is smaller than the γ-ray. Asst. Advantages and Disadvantages Why use X-ray radiographic testing as opposed to other non-destructive tests? 7 What Are the General Advantages and Disadvantages of Radiographic Testing? Advantages and disadvantages of radiographic inspection: Radiography can visually display the size and shape of defects inside the workpiece, so it is easy to determine the nature of the defect. S Extensive operator training and skill required. The product has a 90 degree elbow and a 45 degree elbow, the size is 1219 and 914, and the caps of 1219 and 914, and the concentric head of 1219*914 are made according to the European standard 10253-2. Penetrant Testing. Step 5: Radiographic interpreters trained to read the films and identify weld discontinuities by the shape and variations of dark and light examine the test results. In other words, when the inspection or test is completed the part can still be used. Advantages over Conventional Radiography Digital radiography does not require hazardous chemicals or a darkroom, so its safer to work with and safer on the environment. Commonly used rays are X-rays and gamma rays. Although it is on the decline, many nondestructive testing (NDT)analysts still use radiography for inspections.

'); Non-destructive testing (NDT) is the process of inspecting, testing, or evaluating materials, components or assemblies for discontinuities, or differences in characteristics without destroying the serviceability of the part or system. No welding problems were found after the inspection. If you use a fluorescent screen instead of film to directly observe the object under inspection, it is called perspective. The X-ray transillumination time is short and the speed is fast. GD&T Training Geometric Dimensioning Tolerancing Excel App. It is only suitable to detect volume defects such as pores, slag inclusions, shrinkage holes, looseness, etc., which can be qualitative but not quantitative, and is not suitable for use. In this paper, different digital radiography systems and advantages of image processing in digital radiography are discussed. The shape, position and size of the defect are displayed non-destructively. Our advanced digital radiography provides a non-destructive method of testing which produces high sensitivity gamma-ray and x-ray images …