Research Article
An Investigation of Abrasive Water Jet Machining on Graphite/Glass/Epoxy Composite
Table 4
Plan of experiment and measured output parameters.
| Trial | Process parameters | Average response values | Pressure (MPa) | Feed rate (mm/min) | Abrasive concentration (wt.%) | SOD (mm) | TKW (mm) | BKW (mm) |
| 1 | 90 | 75 | 6 | 1 | 0.845 | 0.803 | 2 | 90 | 75 | 10 | 3 | 0.905 | 0.892 | 3 | 90 | 75 | 14 | 5 | 0.964 | 0.936 | 4 | 90 | 100 | 6 | 3 | 0.896 | 0.853 | 5 | 90 | 100 | 10 | 5 | 0.950 | 0.912 | 6 | 90 | 100 | 14 | 1 | 0.847 | 0.827 | 7 | 90 | 125 | 6 | 5 | 0.870 | 0.835 | 8 | 90 | 125 | 10 | 1 | 0.823 | 0.816 | 9 | 90 | 125 | 14 | 3 | 0.860 | 0.850 | 10 | 120 | 75 | 6 | 3 | 0.960 | 0.913 | 11 | 120 | 75 | 10 | 5 | 1.176 | 1.150 | 12 | 120 | 75 | 14 | 1 | 0.890 | 0.868 | 13 | 120 | 100 | 6 | 5 | 1.104 | 1.055 | 14 | 120 | 100 | 10 | 1 | 0.875 | 0.845 | 15 | 120 | 100 | 14 | 3 | 0.981 | 0.977 | 16 | 120 | 125 | 6 | 1 | 0.855 | 0.803 | 17 | 120 | 125 | 10 | 3 | 0.917 | 0.852 | 18 | 120 | 125 | 14 | 5 | 0.987 | 0.935 | 19 | 150 | 75 | 6 | 5 | 1.203 | 1.155 | 20 | 150 | 75 | 10 | 1 | 0.938 | 0.918 | 21 | 150 | 75 | 14 | 3 | 1.052 | 1.005 | 22 | 150 | 100 | 6 | 1 | 0.903 | 0.872 | 23 | 150 | 100 | 10 | 3 | 0.965 | 0.887 | 24 | 150 | 100 | 14 | 5 | 1.150 | 1.015 | 25 | 150 | 125 | 6 | 3 | 0.892 | 0.880 | 26 | 150 | 125 | 10 | 5 | 1.065 | 0.992 | 27 | 150 | 125 | 14 | 1 | 0.882 | 0.871 |
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