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What is In Situ Build Height Monitoring for LMD about?

This study presents an in situ monitoring system for build height during powder-based laser metal deposition (LMD) using a webcam and a narrow bandpass filter. The system calculates the laser/powder defocus distance from melt pool images to determine track/layer height, providing a nonintrusive method for real-time monitoring without additional illumination. The approach has been validated against offline measurements, demonstrating its potential for improving geometrical accuracy in LMD processes.

Author

n

Language

EN