| WEDM | Wire electric discharge machining |
| MRR | Material removal rate |
| SR | Surface roughness |
| KW | Kerf width |
| RSM | Response surface method |
| GRA | Grey relational analysis |
| GRG | Grey relational grade |
| ANOVA | Analysis of variance |
| GV | Gap voltage |
| WF | Wire feed |
| LDE | Low discharge energy |
| MDE | Medium discharge energy |
| HDE | High discharge energy |
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