Research Article
Parametric Optimization of Laser Additive Manufacturing of Inconel 625 Using Taguchi Method and Grey Relational Analysis
Table 7
ANOVA for S/N ratio for surface roughness and width error.
| Response | Factors | | | | | % contribution |
| Surface roughness () | LP | 15.5 | 2 | 7.75 | 22.464 | 25.934 | SS | 0.69 | 2 | Pooled | — | — | PFR | 6.597 | 2 | 3.299 | 9.562 | 11.038 | OR | 36.98 | 2 | 18.49 | 53.594 | 61.874 | Error | (0.69) | (2) | (0.345) | | (1.154) | Total | 59.767 | 8 | | | 100 |
| Width error () | LP | 7.735 | 2 | Pooled | — | — | SS | 47.605 | 2 | 23.803 | 8.624 | 18.612 | PFR | 3.308 | 2 | Pooled | — | — | OR | 197.125 | 2 | 98.563 | 35.711 | 77.07 | Error | (11.043) | (4) | (2.76) | | (4.318) | Total | 255.773 | 8 | | | 100 |
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