Visual inspection is a fundamental method of non-destructive testing (NDT) that relies on the human eye or optical devices to assess the surface condition, appearance, and dimensional characteristics of a material or component. This versatile technique plays a crucial role in quality control, defect detection, and maintenance activities across various industries.

How it works:

Visual inspection involves a thorough examination of the surface and features of a material or component to identify defects, discontinuities, corrosion, wear, or other anomalies that may affect its performance or integrity. This inspection method can be conducted with the naked eye or enhanced with the use of magnifying lenses, borescopes, cameras, or other optical devices to achieve greater clarity and precision.

Applications:

Visual inspection is applied in a wide range of industries and applications, including manufacturing, construction, aerospace, automotive, electronics, and infrastructure. It is commonly used for the inspection of welds, machined parts, coatings, assemblies, structures, and surfaces to ensure compliance with specifications, standards, and safety requirements.