PT - JOURNAL ARTICLE AU - Piórkowski, Paweł AU - Roszkowski, Andrzej AU - Szabla, Zofia TI - Diagnostics of Milling Head Using Acoustic Emission DP - 2025 May 6 TA - Manufacturing Technology Journal PG - 222--229 VI - 25 IP - 2 AID - 10.21062/mft.2025.023 IS - 12132489 AB - Monitoring and diagnostics of cutting tools are crucial for ensuring production efficiency and product quality in the machining industry. This study uses acoustic emission (AE) to non-invasively detect damage and monitor tool condition in real time. Experiments assessed cutting inserts in a milling head, both used and new. Results showed AE effectively diagnoses tool wear, with significant differences in signals from worn and new inserts. Fast Fourier Transform (FFT) analysis determined the frequency range of signals during machining, confirming AE's usefulness. Microscope verification supported the AE findings on tool wear. This research highlights AE's potential in non-destructive diagnostics, enhancing production efficiency and product quality