Zwahr, ChristophChristophZwahrSchell, FredericFredericSchellSteege, TobiasTobiasSteegeLasagni, Andrés-FabiánAndrés-FabiánLasagni2025-04-292025-04-292025-01https://publica.fraunhofer.de/handle/publica/48707210.1117/12.30472782-s2.0-105002729070Direct Laser Interference Patterning (DLIP) is a versatile technique for creating microstructures that mimic natural surfaces, offering significant potential for surface functionalization. This study explores DLIP's application on complex 3D geometries using advanced 4- and 5-axis systems and focuses on real-time process monitoring to enhance quality and repeatability. A novel machine platform with simultaneous translational and rotational capabilities, equipped with an extended interference volume, was employed. The process monitoring module, utilizing acoustic emissions (AE) captured by a MEMS microphone, enabled in-process adjustments to maintain homogeneity. Results demonstrate the strong correlation between acoustic emissions and surface texture characteristics, facilitating closed-loop control for improved consistency. This approach significantly reduced variability in structure depth and produced high-quality, uniform textures, demonstrating the potential of AE-based monitoring for advanced DLIP applications.enfalse3D-texturingacoustic monitoringcontrolDirect Laser Interference PatterningTitanium betha-alloy600 Technik, Medizin, angewandte Wissenschaften600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaftenconference paper