There are many latest welding schemes include arc, tig, mig and laser. But all have a unique drawback of defect, which cannot be eradicated while welding. So far many methods and schemes have been identified to detect the defect. One of the efficient methods that have been proposed uses the radiographic image of the defective system rather than usual system analysis. Here in this case the radiographic image of the welded portion is subject to radiographic tests, by introducing image into computer. The volumetric defects like gap and the planer defects are easily identified and combined to form a single image. Thus features of the defects are identified.
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