Acoustic Emission Testing
Acoustic Emission Analysis detects sound waves caused by cracks or stress zones in the material. It enables continuous monitoring of structural integrity under load.
Physical-Chemical Mechanism of Action
Acoustic Emission Analysis uses piezo sensors to detect transient elastic waves generated by sudden energy release like crack growth in the material. These sound waves are captured as acoustic signals and analyzed.
Metallurgical Relevance & Risks in Welding
The analysis can detect the development of micro and macro cracks in the weld before they become visible. This is especially important for highly stressed components, as cracks can lead to further growth or final failure. Misinterpreting or misunderstanding the signals can lead to overlooked risks.
Workshop Practice & Action Instructions
Use piezo sensors for continuous monitoring of the weld during and after the welding process. Set a threshold value for acoustic emission above which an alarm is triggered. This value should be adjusted based on the specific material and application. If the threshold is reached, inspect the weld immediately and repair if necessary.