Critical Defect
Limit defects are deviations from quality standards that require rework or rejection. They threaten the structural integrity of the component.
Physicochemical mechanism of action
A limit defect is a deviation from specified quality criteria that represents a fault in the manufacture or processing of a component. These deviations can relate to geometric shapes, material properties, or functionality.
Metallurgical relevance & welding risks
Limit defects in welding can lead to cracks, deformation, or irregularities. They threaten the mechanical properties and service life of the component. An example is a weld that is too thin, which can fail under stress.
Workshop practice & instructions
To avoid limit defects, welding parameters must be strictly adhered to. This includes selecting the right welding process, proper preparation of workpieces, and observing temperature and stress limits. If a limit defect is detected, immediate rework or rejection is required.