Research Article

Entropy-Based Weighting for Multiobjective Optimization: An Application on Vertical Turning

Table 3

Mathematical models for the objective functions [8].

TermsLife of cutting toolProductivity Cost
(mm)(part/h)(US$/part)

Constant3,0031,7130.03626
Feed8390−0.00293
Rotation−366750.00054
Feed Feed−638−150.00476
Rotation Rotation−300−80.00200
Feed Rotation−263−50.00236
MSE12.9
value0.0030.0000.000
Regression (full quadratic)0.0000.0000.000
Lack of fit0.9260.1360.279
Adjusted (%)91.10%99.90%94.30%
Normality of residuals0.6000.5110.552