Table of Contents
Journal of Composites
Volume 2015, Article ID 971596, 9 pages
Research Article

Experimental Investigations into Abrasive Waterjet Machining of Carbon Fiber Reinforced Plastic

1Marathwada Institute of Technology, Aurangabad 431028, India
2Dr. Babasaheb Ambedkar Technological University, Lonere 402103, India
3Defence Institute of Advanced Technology, Pune 411025, India

Received 2 June 2015; Revised 18 August 2015; Accepted 6 September 2015

Academic Editor: Nikhil Gupta

Copyright © 2015 Prasad D. Unde et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Abrasive waterjet machining (AWJM) is an emerging machining process in which the material removal takes place due to abrasion. A stream of abrasive particles mixed with filtered water is subjected to the work surface with high velocity. The present study is focused on the experimental research and evaluation of the abrasive waterjet machining process in order to evaluate the technological factors affecting the machining quality of CFRP laminate using response surface methodology. The standoff distance, feed rate, and jet pressure were found to affect kerf taper, delamination, material removal rate, and surface roughness. The material related parameter, orientation of fiber, has been also found to affect the machining performance. The kerf taper was found to be 0.029 for 45° fiber orientation whereas it was 0.036 and 0.038 for 60° and 90°, respectively. The material removal rate is 18.95 mm3/sec for fiber orientation compared to 18.26 mm3/sec for 60° and 17.4 mm3/sec for 90° fiber orientation. The value for 45° fiber orientation is 4.911 µm and for 60° and 90° fiber orientation it is 4.927 µm and 4.974 µm, respectively. Delamination factor is found to be more for 45° fiber orientation, that is, 2.238, but for 60° and 90° it is 2.029 and 2.196, respectively.