Table 11.

Comparison of the results between as-received and heat-treated samples.

Results	Surface Roughness (Ra)		Tool wear (Ymax)
	As received	As treated	As received	As treated
Mean	0.16 µm28	0.07 µm	187.77 µm28	142.375 µm
S/N Ratio	15.917 µm	23.0983 µm	− 45.4725 µm	− 43.0687 µm
Prediction model	6.564%	8.76%	8.76%	7.47%
Improvement percentage	56.25%		24.18%