radiographic testing advantages and disadvantages - Piano Notes & Tutorial

2 Detects surface and subsurface defects. Commonly used rays are X-rays and gamma rays. If the original intensity of the ray is a material having a thickness of t after the line absorption coefficient is μ, the intensity is attenuated to I by being absorbed, and the relationship is that if the ray absorbed to different extents is projected onto the X-ray film, A photo (X-ray film) showing changes in the thickness of the object and internal defects can be obtained after development. Radiography • Radiography is used in a very wide range of applications including medicine, engineering, forensics, security, etc. advantage of radiography compared to other inspection techniques is the ... inspectors performed the ultrasonic inspections on 33 test welds. In our comparison below, we focus on pip… { Disadvantages of Selected Non-Destructive Inspection Methods (NDI), Quality and Inspection Process Knowledge It does not need power supply during transillumination, which is convenient for field work. Asst. With this property, when the radiation passes through the inspected weld, the strength of the radiation is different due to the weld defects, so that the intensity of the radiation on the film is different, and the degree of film sensitivity is different, so that it can be accurate and reliable. Types of Radiography. However, the cost of X-ray film and other equipment consumed by this method is relatively high, and the inspection speed is slow. In the video, our company has recently performed radiographic inspections for a number of pipe fittings,using X-rays. Non-destructive testing (NDT) offers a safe and reliable way of inspecting components, that is cost effective and requires little to no disruption to workers or machinery.. Engineering Forum 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. The structure of the cavity, the inspection of the fillet weld and the T-joint is low, and it is difficult to find cracks and unfused defects such as small gaps and internal delamination defects of the forgings and tubes and rods. In NDT, radiography is one of the most important and widely used methods. γ ray can be transparent to 300mm thick steel plate. , GD&T Training Geometric Dimensioning Tolerancing. | Contact | Privacy Policy, Home Advantages and disadvantages: Many engineers and manufacturers choose the dye penetrant inspection method because it’s quick and low cost. It has high sensitivity (small discontinuities can be detected). The advantages and disadvantages of ultrasonic testing method are as follows: Advantages: UT is flexible, portable and has high penetration depth.

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