Airborne acoustic emission of an abrasive waterjet cutting system as means for monitoring the jet cutting capability

Abstract Abrasive waterjet cutting is a manufacturing technology making use of high-speed with abrasive particles in suspension, for materials different mechanical properties. Product quality requirements are pushing towards an improvement tracking and stabilization methods the relevant process variables. Amongst those, jet kinetic power defines capability has significant impact on final cut features. This variable subject to fluctuations versus time. Besides, current state art does not provide means its in-line monitoring. The aim this contribution monitor airborne acoustic emission head investigate correlation power. investigation carried out by factorial studies, which fired at various water pressures feed rates, providing powers. synchronously monitored condenser microphone, installed head. Data frequencies above 40 kHz found constitute robust selective signature jet. proven be effective indicator pressure-induced variations, whilst abrasive-induced variations remain undetected. A calibration procedure presented, translating data into method validated further experiments that envisage deployment real scenario. Overall, presented constitutes tool monitoring capability.