Nozzle Condition Monitoring System Using Root Mean Square of Acoustic Emissions during Abrasive Waterjet Machining

Machining of difficult-to-cut materials such as titanium alloys, stainless steel, Inconel, ceramic, glass, and carbon fiber-reinforced plastics used in the aerospace, automobile, and medical industries is being actively researched. One non-traditional machining method involves the use of an abrasive...

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Bibliographic Details
Published in:Journal of Manufacturing and Materials Processing 2022-04, Vol.6 (2), p.31
Main Authors: Kim, Jeong-Uk, Kim, Roh-Won, Kim, Sung-Ryul, Kim, Hyun-Hee, Lee, Kyung-Chang
Format: Article
Language:English
Subjects:
Abrasive cutting
Abrasive machining
abrasive waterjet
Acoustic emission
acoustic emission sensor
Acoustics
Aerospace industry
Carbon fiber reinforced plastics
Ceramic fibers
Condition monitoring
Glass fiber reinforced plastics
Hydraulic jets
Jet streams (meteorology)
Medical research
monitoring system
Monitoring systems
nozzle wear
Nozzles
Real time
Sensors
Stainless steels
Surface properties
Titanium base alloys
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Summary:Machining of difficult-to-cut materials such as titanium alloys, stainless steel, Inconel, ceramic, glass, and carbon fiber-reinforced plastics used in the aerospace, automobile, and medical industries is being actively researched. One non-traditional machining method involves the use of an abrasive waterjet, in which ultra-high-pressure water and abrasive particles are mixed and then ejected through a nozzle, and the thin jet stream cuts materials. The nozzle greatly affects the machining quality, as does the cutting tool of general machining, so it is very important to monitor the nozzle condition. If the nozzle is damaged or worn, or if the bore size increases or the bore becomes clogged with abrasive, the material may not be cut, or the surface quality of the cut may deteriorate. Here, we develop a nozzle monitoring system employing an acoustic emission sensor that detects the nozzle condition in real time.
ISSN:2504-4494
2504-4494
DOI:10.3390/jmmp6020031