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

Figure 2

Analysis of torque 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) Normal plot of residuals

(f) Probability plot of torque

(g) Histogram of torque with respect to frequency

(h) Empirical CDF of torque

(i) Torque with respect to and feed

(j) Torque with respect to feed

(k) Torque with respect to drill diameter