Nondestructive Testing in the Manufacturing Industry

This is the most basic and widely used NDT method. It involves the visual inspection of materials and components to detect surface defects. It is often supplemented with magnifying devices, borescopes, laser scanning tools, and other visual aids.

This method uses high-frequency sound waves to detect internal flaws or to characterize materials. It is widely used for inspecting welds, castings, and forgings to ensure they are free from internal defects.

This method uses electromagnetic induction to detect surface and near-surface defects in conductive materials. It is commonly used for inspecting tubing, large equipment or vehicle parts or panels, and other conductive components.

This method involves using X-rays or gamma rays to create images of the internal structure of a component. It is commonly used to inspect welds, castings, and composite materials for internal defects such as voids, cracks, and inclusions.

To detect surface and near-surface discontinuities in ferromagnetic materials, the NDT technician magnetizes the component and applies magnetic particles are applied to the surface. The particles gather at areas of flux leakage, indicating the presence of defects.

With this method, NDT technicians can detect surface-breaking defects in non-porous materials. A liquid penetrant is applied to the surface, and after a specified dwell time, excess penetrant is removed, and a developer is applied to draw out the penetrant from defects, making them visible under ultraviolet or visible light.

NR is particularly useful for examining lightweight materials like composites and certain plastics, which are common in manufactured products such as vehicles and medical equipment. NR is excellent at detecting water and moisture inside dense metal parts, which is crucial for keeping electronic systems and other key components safe and reliable. It also helps ensure the strength of adhesive bonds and checks complex assemblies like engines and hydraulic systems.