12th International Electric Drives Production Conference (EDPC) 01/23
Inline Process Monitoring of Hairpin Welding Using Optical and Acoustic Quality Metrics
Authors: Contents:- XARION´s Optical Microphone was used to capture airborne ultrasound generated during the hairpin welding process
- A multitude of welds were performed under varying quality-affecting parameter conditions, such as positioning misalignments or focal height and laser power deviations
- It was found that the real-time ultrasound emission could be utilized as an early indicator for predicting the important quality criterium of final cross-sectional area of connection