e-Modeling and Evolution of Nanolubricant Coupled Machining Parameters Using Statistical Tool

Figure 4

Analysis of surface roughness using graphical output. (obtained from response surface methodology).

(a) Main effect plot for means

(b) Main effect plot for signal-to-noise ratio

(c) Interaction plot for means

(d) Interaction plot for signal-to-noise ratio

(e) Histogram of surface plot with respect to frequency

(f) Empirical CDF of surface roughness

(g) 3D surface plot of surface roughness with respect drill diameter and feed rate

(h) Predicted value vs. actual value