Research Article
Study on Application of Grey Prediction Model in Superalloy MAR-247 Machining
Table 2
Comparison sheet of the common and improved grey prediction model.
| Tool K10+TiN | (rpm) | Test | GM(1,1) | Error | GM(1,1) + MSE | Error |
| 2000 | 0.171 | 0.2364 | −0.0654 | 0.171 | 0 | 2500 | 0.264 | 0.2582 | 0.0058 | 0.2248 | −0.0392 | 3000 | 0.272 | 0.282 | −0.01 | 0.264 | −0.008 | 3500 | 0.313 | 0.308 | 0.005 | 0.307 | −0.006 | 4000 | 0.415 | 0.3364 | 0.0786 | 0.3797 | −0.0353 | 4500 | 0.455 | 0.3674 | 0.0876 | 0.4449 | −0.0101 | 5000 | 0.506 | 0.4013 | 0.1047 | 0.509 | 0.003 | MAPE | | 0.00561 | | 0.00043 | RMSE | | 0.06464 | | 0.02068 |
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