Acoustic emission monitoring reveals keyhole formation and evolution
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DOI: 10.1038/s41598-025-27232-1
Abstract: We present results from airborne acoustic emission (AE) monitoring during the Laser Powder Bed Fusion (LPBF) process. A distinct acoustic signature was consistently observed alongside keyhole formation and plume instability, with its frequency inversely proportional… read more here.
Keywords: keyhole formation; emission monitoring; acoustic emission;