Research Article
Multiobjective Optimization of WEDM Parameters on the Mg-HNT-Zr Hybrid Metal Matrix Composite Using Taguchi-Coupled GRA
Table 5
Analysis of variance for MRR and Ra.
| Source of variance | DF | Sum of squares | Adjusted MS | F value | P-value | %C | Sequential | Adjusted |
| Material removal rate-MRR (R2 = 0.9808, adj. R2 = 0.9687) | HNT % | 2 | 0.127564 | 0.127564 | 0.063782 | 203.46 | p ≤ 0.001 | 48.956 | Zr % | 2 | 0.040353 | 0.040353 | 0.020177 | 64.36 | p ≤ 0.001 | 15.486 | P on | 2 | 0.045791 | 0.045791 | 0.022896 | 73.04 | p ≤ 0.001 | 17.576 | P off | 2 | 0.023055 | 0.023055 | 0.011527 | 36.77 | p ≤ 0.001 | 8.848 | WF | 2 | 0.018788 | 0.018788 | 0.009394 | 29.97 | p ≤ 0.001 | 7.210 | Error | 16 | 0.005016 | 0.005016 | 0.009394 | | | | Total | 26 | 0.260566 | | | | | |
| Surface roughness-Ra (R2 = 0.9985, adj. R2 = 0.9976) | HNT % | 2 | 1.24545 | 1.24545 | 0.62272 | 2556.27 | p ≤ 0.001 | 46.670 | Zr % | 2 | 0.53957 | 0.53957 | 0.26978 | 1107.46 | p ≤ 0.001 | 20.219 | P on | 2 | 0.34900 | 0.34900 | 0.17450 | 716.32 | p ≤ 0.001 | 13.077 | P off | 2 | 0.46277 | 0.46277 | 0.23139 | 949.83 | p ≤ 0.001 | 17.341 | WF | 2 | 0.06794 | 0.06794 | 0.03397 | 139.44 | p ≤ 0.001 | 2.545 | Error | 16 | 0.00390 | 0.00390 | 0.00024 | | | | Total | 26 | 2.66862 | | | | | |
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