Open Access

Table 6

Values predicted by MLR models and their percentage of error for flank wear and surface roughness considering both machining parameter and vibration signal.

Standard order Experimental VBc (mm) Experimental Ra (μm) Predicted VBc (mm) Predicted Ra (μm) % of error (VBc) % of error (Ra)
1 0.173 0.91 0.186 0.71 −7.51 21.97
2 0.239 0.80 0.208 0.82 12.97 −2.5
3 0.294 1.18 0.268 1.07 8.84 9.32
4 0.189 1.02 0.211 0.74 −11.64 27.45
5 0.184 0.72 0.229 0.84 −24.45 −16.66
6 0.209 1.42 0.266 0.99 −27.27 30.28
7 0.248 0.72 0.219 0.78 11.69 −8.33
8 0.284 0.85 0.278 1.02 2.11 −20
9 0.279 0.71 0.264 0.8 5.37 −12.67
10 0.230 0.91 0.201 0.89 12.6 2.19
11 0.162 0.69 0.211 0.76 −30.24 −10.14
12 0.252 0.87 0.245 0.92 2.77 −5.74
13 0.239 0.71 0.207 0.79 13.38 −11.26
14 0.286 1.07 0.287 1.12 −0.34 −4.67
15 0.288 0.81 0.257 0.84 10.76 −3.7
16 0.201 0.83 0.234 0.89 −16.41 −7.22
17 0.254 0.66 0.239 0.74 5.9 −12.12
18 0.281 0.87 0.281 0.94 0 −8.04
Average percentage error (%)     11.34 11.9

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