![]() For more demanding service conditions, visual inspection is usually followed by one or more of the other non-destructive testing (NDT) techniques – surface crack detection and volumetric inspection of butt welds. ![]() ![]() Visual inspection is one of the non–destructive examination (NDE) disciplines and for some applications may be the only form. For employers to have confidence in their work, Welding Inspectors need to have the ability to understand/interpret the various QC procedures and also have sound knowledge of welding technology. General Welding Inspectors are employed to assist with the quality control (QC) activities that are necessary to ensure that welded items will meet specified requirements and be fit for their application. Section 1 Typical Duties of Welding Inspectors Rev 1 January 2009 Contents Copyright © TWI Ltd 2009 Welding Imperfections and Materials Inspection TWI �Training
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