Table 8: Confirmation tests for surface roughness.

Cutting fluidsDepths of cut (mm)Feed rates
(mm/rev)
Speed
(rpm)
Predicted
Ra (µm)
Experimental Ra (µm)% error

MJO0.50.116000.7610.84.8186
MPO10.258001.3451.33.5065
MO1.50.17512701.0632961.211.392