Effect of process parameters on the surface roughness generated on graphite laced GFRP composite by AWJ machining

Deepak Doreswamy, Basit Eqbal, Siddaram Sangolagi, Anjaiah Devineni

Research output: Contribution to journalArticle

3 Citations (Scopus)


In this research paper, the effect of abrasive water jet (AWJ) machining process parameters such as jet operating pressure, feed rate, abrasive concentration and standoff distance (SOD) on the surface roughness produced during machining of graphite mixed glass fibre reinforced polymer (GFRP) composite is investigated. Experiments were conducted using Taguchi's L27 orthogonal array design and the process parameters were optimised to obtain high surface finish. Experimental data were analysed using analysis of variance (ANOVA) which shows that the surface roughness decreased by 15.90% and increased by 9.22% for the increase in operating pressure and SOD respectively. Also, regression model is developed to predict the surface roughness and found that the predicted values are in close agreement with the experimental values (error 6.57%).

Original languageEnglish
Pages (from-to)294-306
Number of pages13
JournalInternational Journal of Abrasive Technology
Issue number4
Publication statusPublished - 01-01-2016


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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