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Nozzle Condition Monitoring System for Abrasive Waterjet Process

연마재 워터젯을 위한 노즐상태 모니터링 시스템 설계

  • Kim, Jeong-Uk (Department of Control and Instrumentation Engineering, Pukyong National University) ;
  • Kim, Roh-Won (Korea Institute of Industrial Technology) ;
  • Kim, Chul-Min (Korea Institute of Industrial Technology) ;
  • Kim, Sung-Ryul (Korea Institute of Industrial Technology) ;
  • Kim, Hyun-Hee (Industrial Sciences & Technology Institute) ;
  • Lee, Kyung-Chang (Department of Control and Instrumentation Engineering, Pukyong National University)
  • 김정욱 (부경대학교 제어계측공학과) ;
  • 김노원 (한국생산기술연구원) ;
  • 김철민 (한국생산기술연구원) ;
  • 김성렬 (한국생산기술연구원) ;
  • 김현희 (부경대학교 산업과학기술연구소) ;
  • 이경창 (부경대학교 제어계측공학과)
  • Received : 2020.08.16
  • Accepted : 2020.09.04
  • Published : 2020.10.31

Abstract

In recent, the machining of difficult-to-cut materials such as titanium alloys, stainless steel, Inconel, ceramic, glass, and carbon fiber reinforced plastics (CFRP) used in aerospace, automobile, medical industry is actively researched. Abrasive waterjet is a non-traditional processing method in which ultra-high pressure water and abrasive particles are mixed in a mixing chamber and shoot out jet through a nozzle, and removed by erosion due to collision with a material. In particular, the nozzle of the abrasive waterjet is one of the most important parts that affect the machining quality as with a cutting tool in general machining. It is very important to monitor the condition of the nozzle because the workpiece is uncut or the surface quality deteriorates due to wear, expanding of the bore, damage of the nozzle and clogging of the abrasive, etc. Therefore, in this paper, we propose a monitoring system based on Acoustic Emission(AE) sensor that can detect nozzle condition in real time during AWJ processing.

References

  1. Global Industry Analysts, Inc. "WATERJET CUTTING MACHINES", A Global Strategic Business Report MCP-6548 October 2012 (p. II-1)
  2. D. A. Axinte, B. Karpuschewski, M. C. Kong, A. T. Beaucamp, S. Anwar, D. Miller, and M. Petzel, "High Energy Fluid Jet Machining (HEFJet-Mach): From scientific and technological advances to niche industrial applications," Manufacturing Technology, Vol.63, pp. 751-771, (2014).
  3. E. Uhlmanna, F. Sammler, S. Richarz, F. Heitmullera, M. Bilz, "Machining of Carbon Fibre Reinforced Plastics," Procedia CIRP, Vol.24, pp. 19-24, (2014). https://doi.org/10.1016/j.procir.2014.07.135
  4. S. Vasanth, T. Muthuramalingam, P. Vinothkumar, T. Geethapriyan, G. Murali, "Performance Analysis of Process Parameters on Machining Titanium (Ti-6Al-4V) Alloy Using Abrasive Water Jet Machining Process," Procedia CIRP, Vol.46, pp. 139-142, (2016). https://doi.org/10.1016/j.procir.2016.04.072
  5. A. Pramanik, "Developments in the non-traditional machining of particle reinforced metal matrix composites," International Journal of Machine Tools & Manufacture, Vol.86, pp. 44-61, (2014). https://doi.org/10.1016/j.ijmachtools.2014.07.003
  6. E. Uhlmann, F. Sammler, S. Richarz, F. Heitmuller, and M. Bilz, "A review on the erosion mechanisms in abrasive waterjet micromachining of brittle materials," International Journal of Extreme Manufacturing, Vol.1, pp. 1-14, (2019).
  7. M. Nanduri, D. G. Tagart, and T. J. Kim, "The effects of system and geometric parameters on abrasive water jet nozzle wear," International Journal of Machine Tools & Manufacture, Vol.42, pp. 615-623, (2002). https://doi.org/10.1016/S0890-6955(01)00147-X
  8. D.A. Axinte and M.C. Kong, "An integrated monitoring method to supervise waterjet machining," CIRP Annals - Manufacturing Technology, Vol.58, pp. 303-306, (2009). https://doi.org/10.1016/j.cirp.2009.03.022
  9. M. Prijatelj, M. Jerman, H. Orbanic, I. Sabotin, J. Valentincic and Andrej Lebar, "Determining Focusing Nozzle Wear by Measuring AWJ Diameter," Journal of Mechanical Engineering, Vol.63, pp. 597-605, (2017). https://doi.org/10.5545/sv-jme.2017.4424
  10. S. Dolinsek and J. Kopac, "Acoustic emission signals for tool wear identification," Wear, Vol.225-229, pp. 295-303, (1999). https://doi.org/10.1016/S0043-1648(98)00363-9