Study on abrasive water jet drilling for graphite filled glass/epoxy laminates

  • Deepak D. Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, India Phone: +91-7204308289
  • Ashwin Pai K. Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, India Current Affiliation: Developer, TATA Consultancy Services, Bangalore, India.
Keywords: AWJ Machining, five-axis CNC AWJ machine, GFRP, Taguchi method, ANOVA, Laminates, Jet operating pressure, Feed rate, Stand-off distance

Abstract

The effect of Abrasive Water Jet (AWJ) machining parameters on quality of the drilled holes in Glass Fiber Reinforced Polymer (GFRP) composite is reported. In this work a hybrid composite laminates of glass fabric reinforced epoxy with 2%, 4% and 6% graphite were studied. Experiments were designed using Taguchi L9 orthogonal array and conducted using five-axis CNC AWJ machine. The influence of process parameters such as jet operating pressure, feed rate and stand-off distance (SOD) on quality of drilled holes were investigated and results are reported. Further, the process parameter were optimized using statistical method. The study show that jet operating pressure is the most influential operating parameter affecting the response. SEM investigation reveals that use of graphite in GFRP composite helps in improving machinability of the laminates.

Published
2019-06-28
How to Cite
D., D., & K., A. P. (2019). Study on abrasive water jet drilling for graphite filled glass/epoxy laminates. Journal of Mechanical Engineering and Sciences, 13(2), 5126 - 5136. https://doi.org/10.15282/jmes.13.2.2019.24.0421
Section
Article