Research Article
Multiresponse Optimization of Wire Electrical Discharge Machining Parameters for Ti-6Al-2Sn-4Zr-2Mo (α-β) Alloy Using Taguchi-Grey Relational Approach
| Experimental trial | S/N ratio | Normalized S/N ratio | Deviation sequence | Grey relational coefficient | Grey relational grade | MRR | SR | MRR | SR | MRR | SR | MRR | SR |
| 1 | 10.171 | 19.493 | 0.0023 | 0.6867 | 1.0000 | 0.3133 | 0.2500 | 0.3807 | 0.4994 | 2 | 7.92 | 34.89 | 0.6109 | 0.0042 | 0.3891 | 1.0000 | 0.3600 | 0.2500 | 0.4988 | 3 | 6.989 | 20.915 | 1.0000 | 0.4542 | 0.0000 | 0.5458 | 0.5000 | 0.3235 | 0.5624 | 4 | 8.796 | 14.334 | 0.2797 | 0.7490 | 0.7203 | 0.2510 | 0.2906 | 0.3997 | 0.4977 | 5 | 7.857 | 13.433 | 0.7279 | 0.7894 | 0.2721 | 0.2106 | 0.3931 | 0.4130 | 0.5623 | 6 | 9.343 | 20.724 | 0.0186 | 0.4628 | 0.9814 | 0.5372 | 0.2523 | 0.3253 | 0.4799 | 7 | 7.914 | 24.731 | 0.7007 | 0.2833 | 0.2993 | 0.7167 | 0.3848 | 0.2913 | 0.4999 | 8 | 8.494 | 31.057 | 0.4239 | 0.1200 | 0.5761 | 1.0000 | 0.3172 | 0.2500 | 0.4361 | 9 | 8.974 | 15.041 | 0.1947 | 0.6830 | 0.8053 | 0.3170 | 0.2770 | 0.3796 | 0.5597 | 10 | 9.382 | 17.924 | 0.2400 | 0.5381 | 1.0000 | 0.4619 | 0.2500 | 0.3420 | 0.4871 | 11 | 9.293 | 16.306 | 0.13000 | 0.6194 | 1.0000 | 0.3806 | 0.2500 | 0.3622 | 0.4901 | 12 | 9.057 | 28.636 | 0.0691 | 0.1000 | 0.9309 | 1.0000 | 0.2589 | 0.2500 | 0.4900 | 13 | 8.909 | 12.468 | 0.1243 | 0.8078 | 0.8757 | 0.1922 | 0.2666 | 0.4194 | 0.5648 | 14 | 8.346 | 16.082 | 0.3346 | 0.6220 | 0.6654 | 0.3780 | 0.3002 | 0.3628 | 0.5815 | 15 | 7.955 | 16.199 | 0.4806 | 0.6160 | 0.5194 | 0.3840 | 0.3291 | 0.3613 | 0.4702 | 16 | 8.585 | 17.202 | 0.2453 | 0.5644 | 0.7547 | 0.4356 | 0.2850 | 0.3483 | 0.5041 | 17 | 7.948 | 8.73 | 0.4832 | 1.0000 | 0.5168 | 0.0000 | 0.3296 | 0.5000 | 0.5454 | 18 | 7.317 | 13.936 | 0.7188 | 0.8788 | 0.2812 | 0.1212 | 0.3903 | 0.4459 | 0.5431 | 19 | 7.287 | 28.179 | 0.7300 | 0.0000 | 0.2700 | 1.0000 | 0.3937 | 0.2500 | 0.5623 | 20 | 9.242 | 15.289 | 0.0320 | 0.7783 | 1.0000 | 0.2217 | 0.2500 | 0.4093 | 0.5050 | 21 | 8.621 | 12.69 | 0.1191 | 0.9520 | 0.8809 | 0.0480 | 0.2658 | 0.4771 | 0.5848 | 22 | 8.205 | 16.138 | 0.2972 | 0.7216 | 0.7028 | 0.2784 | 0.2936 | 0.3911 | 0.4879 | 23 | 8.669 | 14.425 | 0.0985 | 0.8360 | 0.9015 | 0.1640 | 0.2630 | 0.4296 | 0.5046 | 24 | 7.805 | 18.489 | 0.4685 | 0.5645 | 0.5315 | 0.4355 | 0.3265 | 0.2500 | 0.5261 | 25 | 6.564 | 11.971 | 1.0000 | 1.0000 | 0.0056 | 0.0047 | 0.3421 | 0.3174 | 0.6584 | 26 | 6.673 | 17.993 | 1.0000 | 1.0000 | 0.1400 | 0.0062 | 0.4301 | 0.4320 | 0.7520 | 27 | 8.899 | 26.936 | 0.3526 | 0.3041 | 0.0000 | 0.0052 | 0.4591 | 0.5210 | 0.6910 |
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