Indication
An indication is the visible or measurable signal that occurs during or after an inspection method and indicates a local deviation. Not every indication necessarily means a defect.
Physical-Chemical Mechanism of Action
An indication arises from the measurement or observation of properties that differ during or after an inspection method. These deviations can be due to chemical changes, mechanical impairments, or other factors.
Metallurgical Relevance & Risks in Welding
In weld inspection, an indication can point to various issues, such as insufficient penetration, lack of shielding gas, or excessive voltage. It is important to interpret every indication carefully and, if necessary, do further testing to ensure the parts meet the required quality standards.
Workshop Practice & Instructions
When performing inspection methods, it is important to document and analyze the indication precisely. If an unexplained indication occurs, additional tests should be carried out, or the inspector should consult an expert. It is also crucial that all inspection parameters are set correctly to obtain reliable results.