![]() The suitability of a particular nondestructive test for a given application is determined by considering of the following factors: Non destructive test provide indirect, valid, leave the test objects unchanged and ready to be placed in service if found acceptable. One major disadvantage of employing the destructive testing methods is the test object is destroyed in the process hence various non destructive testing methods are used as they permit non destructive evaluation of the metal or component. hence effective quality program is required to determine the suitability of a given base metal or a weld to perform in intended service. hence effective methods of testing are a need to ensure soundness of welds. Welding process is employed in manufacture of various critical equipment’s such as boilers, pressure vessels, and nuclear vessels, piping applications, aero space applications etc. According to AWS, a weld is a localized coalescence of metals or non metals produced either by heating the materials to the welding temperature, with or without the application of pressure, or by the application of pressure alone and with or without the use of filler metal. Welding is a one of the metal joining processes and is widely used in the manufacturing industry. ![]()
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