Investigation on Feed Rate Influence on Surface Quality in Abrasive Water Jet Cutting of Composite Materials, Monitoring Acoustic Emissions

Popan, Ioan Alexandru; Bocăneț, Vlad; Bâlc, Nicolae; Popan, Alina Ioan

doi:10.1007/978-3-319-99353-9_12

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…In [16], an analogous experimental setup to the one of [10] was used for demonstrating the correlations of the workpiece vibration with m a , the transverse speed and the focusing tube's inner diameter. In [17], the authors carried out an experimental investigation, in which Composite Fiber-Reinforced Panel (CFRP) materials were cut by means of AWJC and the acoustic emission monitored by means of two sensors, of which one installed on the cutting head and the other on the workpiece. In the conclusions, the authors observed a correlation between the transverse speed (hence the surface roughness) and the signals' amplitudes.…”

Section: Literature Surveymentioning

confidence: 99%

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

Copertaro

Annoni

2022

Int J Adv Manuf Technol

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

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Section: Literature Surveymentioning

confidence: 99%

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

Copertaro

Annoni

2022

Int J Adv Manuf Technol

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“…In [14], the authors carried out an experimental investigation, in which Composite Fiber Reinforced Panel (CFRP) materials were cut by means of AWC and the acoustic emission monitored by means of two sensors, of which one installed on the cutting head and the other on the workpiece. In the conclusions, the authors observed a correlation between the transverse speed (hence the surface roughness) and the signals' amplitudes.…”

Section: Introductionmentioning

confidence: 99%

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

Copertaro¹,

Annoni

2022

Preprint

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

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“…Popan et al [13] conducted an experimental study regarding the AWJC of Composite Fiber Reinforced Panel (CFRP) materials. Cutting experiments were carried out at different traverse speeds and the acoustic emission was monitored by means of two sensors, of which one was installed on the cutting head and the other on the workpiece.…”

Section: Introductionmentioning

confidence: 99%

Focusing tube operational vibration as a means for monitoring the abrasive waterjet cutting capability

Copertaro

Perotti

Castellini

et al. 2020

Journal of Manufacturing Processes

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Investigation on Feed Rate Influence on Surface Quality in Abrasive Water Jet Cutting of Composite Materials, Monitoring Acoustic Emissions

Cited by 4 publications

References 14 publications

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

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

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

Focusing tube operational vibration as a means for monitoring the abrasive waterjet cutting capability

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