Table 5.

Quantitative comparison of the springback coefficients Ks determined experimentally and by MLP 5:5-9-1:1.

Case	Input Parameter					Springback Coefficient Ks
	fl, mm	σy, MPa	K	n	r	ANN	Experiment
1	3	186.7	558.9	0.211	1.74	0.867	0.869
13	12	186.7	558.9	0.211	1.74	0.914	0.907
17	24	186.7	558.9	0.211	1.74	0.953	0.956
18	27	186.7	558.9	0.211	1.74	0.952	0.954
28	3	194.3	542.6	0.223	1.82	0.834	0.832
31	12	194.3	542.6	0.223	1.82	0.914	0.918
37	3	194.3	542.6	0.223	1.82	0.831	0.832
41	15	194.3	542.6	0.223	1.82	0.862	0.876
51	18	194.3	542.6	0.223	1.82	0.939	0.928