Figure 7

Interaction between Surface irregularity and machining variables (a) Cube plot (b) 3D surface plot with predictors Abrasive discharge proportion and traverse feed velocity for Surface irregularity (c) 3D surface plot with predictors traverse feed velocity and Nozzle-to-substrate gap for Surface irregularity (d) 3D surface plot with predictors Abrasive discharge proportion and Nozzle-to-substrate gap for Surface irregularity.