Depth of Penetration and Surface Roughness Analysis of Al6061 cut by Abrasive Water Jet

Authors

  • Prabhu Swamy N R * , V Bharathi , Ramji B R , S Srinivas

Abstract

In this study, model equations to predict average surface roughness value of abrasive water jet cut
aluminium 6061 alloy are developed. Model equations are developed considering water jet pressure,
abrasive flow rate and traverse speed of the jet. Model equations help in knowing average surface roughness
value on the cutting and deformation wear regions. 27 abrasive water jet cutting experiments are conducted
on trapezoidal shaped aluminium 6061 block. Depth of penetration values are found for all experimental
cutting conditions. Average surface roughness values are found by non-contact surface roughness tester.
Surface roughness testing is carried out along the length of depth of penetration. Low and high average
surface roughness values are noticed on the cutting and deformation wear regions respectively. Smooth
surface finish and rough surface finish with striations are observed on the cutting and deformation wear
regions respectively.

Published

2020-03-25

Issue

Section

Articles