Surface Crack Detection Limit
The smallest surface crack size that can be detected with a given method.
Physical-Chemical Mechanism of Action
The surface crack detection limit is the smallest crack or defect section on a metal surface that a specific inspection method can still detect. This depends on the resolution and sensitivity of the method used.
Metallurgical Relevance & Welding Risks
A detection value that is too low means that smaller cracks or defect sections cannot be detected. This can lead to undetected quality issues and hide potential safety risks. A value that is too high, on the other hand, can lead to false positives, causing unnecessary re-inspection or false alarms.
Workshop Practice & Instructions
Choose an inspection method with a detection limit that meets project requirements. For high-precision inspections, a detection limit of 0.1 mm is typical. Make sure the inspection equipment is properly calibrated and used to get reliable results.