Optimizing Cutting Conditions and Prediction of Surface Roughness in Face Milling of AZ61 Using Regression Analysis and Artificial Neural Network

Table 2

Comparison of the developed different ANN structures for surface Ra (μm).

ANN model	Algorithm	Function	Neuron number			MAE	MSE
Model 1	Momentum	TanhAxon	4	0.9319	0.8684	0.023	0.0008
Model 2	Momentum	Sigmoid Axon	6	0.9074	0.8234	0.022	0.0006
Model 3	Levenberg	Sigmoid Axon	10	0.8695	0.7560	0.034	0.0017
Model 4	Levenberg	TanhAxon	6	0.9743	0.9493	0.015	0.0002
Model 5	Levenberg	TanhAxon	12	0.9701	0.9411	0.015	0.0003