Research Article
Multiobjective Optimization of WEDM Parameters on the Mg-HNT-Zr Hybrid Metal Matrix Composite Using Taguchi-Coupled GRA
Table 6
Calculated GRG and its order in the optimization process.
| Trial. No | Normalized values | Grey relational coefficient | Grey relational grade | Rank | MRR | Ra | MRR | Ra |
| 1 | 0.800995 | 1 | 0.715302 | 1 | 0.857651 | 3 | 2 | 0.937811 | 0.967831 | 0.889381 | 0.939551 | 0.914466 | 2 | 3 | 1 | 0.911765 | 1 | 0.85 | 0.925 | 1 | 4 | 0.746269 | 0.806066 | 0.663366 | 0.72053 | 0.691948 | 6 | 5 | 0.803483 | 0.775735 | 0.717857 | 0.690355 | 0.704106 | 5 | 6 | 0.90796 | 0.715074 | 0.844538 | 0.637002 | 0.74077 | 4 | 7 | 0.70398 | 0.737132 | 0.628125 | 0.655422 | 0.641773 | 8 | 8 | 0.753731 | 0.698529 | 0.67 | 0.623853 | 0.646927 | 7 | 9 | 0.79602 | 0.605699 | 0.710247 | 0.559096 | 0.634671 | 9 | 10 | 0.475124 | 0.738971 | 0.487864 | 0.657005 | 0.572434 | 12 | 11 | 0.564677 | 0.69761 | 0.534574 | 0.623139 | 0.578857 | 11 | 12 | 0.711443 | 0.665441 | 0.634069 | 0.599119 | 0.616594 | 10 | 13 | 0.626866 | 0.186581 | 0.57265 | 0.380686 | 0.476668 | 21 | 14 | 0.691542 | 0.119485 | 0.618462 | 0.362184 | 0.490323 | 17 | 15 | 0.723881 | 0.054228 | 0.644231 | 0.345836 | 0.495033 | 16 | 16 | 0.21393 | 0.430147 | 0.388781 | 0.467354 | 0.428068 | 22 | 17 | 0.251244 | 0.357537 | 0.400398 | 0.437651 | 0.419025 | 24 | 18 | 0.323383 | 0.284007 | 0.424947 | 0.411187 | 0.418067 | 25 | 19 | 0.614428 | 0.44761 | 0.564607 | 0.475109 | 0.519858 | 15 | 20 | 0.676617 | 0.405331 | 0.607251 | 0.456759 | 0.532005 | 13 | 21 | 0.696517 | 0.351103 | 0.622291 | 0.4352 | 0.528746 | 14 | 22 | 0 | 0.704963 | 0.333333 | 0.628902 | 0.481118 | 20 | 23 | 0.21393 | 0.655331 | 0.388781 | 0.591948 | 0.490365 | 18 | 24 | 0.330846 | 0.591912 | 0.42766 | 0.550607 | 0.489133 | 19 | 25 | 0.38806 | 0.141544 | 0.449664 | 0.368065 | 0.408865 | 27 | 26 | 0.452736 | 0.071691 | 0.477435 | 0.350064 | 0.41375 | 26 | 27 | 0.524876 | 0 | 0.512755 | 0.333333 | 0.423044 | 23 |
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