Abrasive waterjet cutting is a non-traditional cutting processes capable of cutting wide range materials. This
report assesses the influence of process parameters on surface roughness which is an important cutting performance
measure in abrasive waterjet drilling of Aluminium alloy. The process variables considered here include abrasive flow
rate, standoff distance, feed rate and water pressure. Experiments were conducted in varying these parameters for drilling
of Aluminium alloy using abrasive waterjet cutting process. For selecting the cutting parameters, an empirical model for
the prediction of surface roughness in abrasive water jet drilling of Aluminium alloy is developed using regression
analysis. This developed model has been verified with the experimental results that reveal a high applicability of the
model within the experimental range used.
The better machining capabilities of abrasive waterjet cutting (AWJC) characterized by the absence of thermal
distortion make it highly competitive with other