An integrated FEM-ANN model for laser bending process with inverse estimation of absorptivity

Kant, Ravi; Joshi, Shrikrishna N.; Dixit, Uday S.

doi:10.1186/s40759-015-0006-1

Table 1 Bend angle and absorptivity for various process conditions

From: An integrated FEM-ANN model for laser bending process with inverse estimation of absorptivity

Data No.	Power (W)	Velocity (mm/min)	SD (mm)	Beam Diameter (mm)	A: Average Bend Angle Experimental study (°)	Coefficient of Variation (%)	B: Bend Angle Numerical simulation (°)	Absolute Error = \( \left\|\frac{\left(A-B\times 100\right)}{A}\right\| \) (%)	Absorptivity
1	300	1000	20	3.87	1.07	4.11	1.10	2.40	0.63
2	300	1000	30	5.81	0.73	3.14	0.72	0.75	0.67
3	300	1000	40	7.74	0.49	4.6	0.47	3.25	0.72
4	300	1000	50	9.68	0.21	24.86	0.20	3.18	0.725
5	300	2000	20	3.87	0.84	3.96	0.84	0.04	0.72
6	300	2000	30	5.81	0.31	3.77	0.31	1.40	0.74
7	300	2000	40	7.74	0.12	18.09	0.13	4.17	0.8
8	300	2000	50	9.68	0.05	29.31	0.05	3.54	0.875
9	300	3000	20	3.87	0.6	19.31	0.62	3.83	0.83
10	300	3000	30	5.81	0.14	18.62	0.15	4.44	0.84
11	300	3000	40	7.74	0.09	20.56	0.10	4.15	0.95
12	300	3000	50	9.68	^a	^a	^a	^a	0.98
13	300	5000	20	3.87	0.26	2.46	0.25	3.35	0.81
14	300	5000	30	5.81	0.16	33.25	0.17	4.87	0.98
15	300	5000	40	7.74	^a	^a	^a	^a	0.99
16	300	5000	50	9.68	^a	^a	^a	^a	1.0
17	500	1000	20	3.87	0.99	7.31	0.95	4.35	0.825
18	500	1000	30	5.81	0.94	1.44	0.95	0.57	0.8
19	500	1000	40	7.74	0.75	18.69	0.78	4.11	0.6
20	500	1000	50	9.68	0.53	12.94	0.55	4.08	0.54
21	500	2000	20	3.87	1.42	15.45	1.35	4.77	0.52
22	500	2000	30	5.81	1	7.58	0.97	2.54	0.59
23	500	2000	40	7.74	0.72	13.98	0.71	1.24	0.66
24	500	2000	50	9.68	0.4	0.67	0.41	3.30	0.68
25	500	3000	20	3.87	1.27	6.63	1.14	1.91	0.57
26	500	3000	30	5.81	0.84	15.93	0.85	0.74	0.67
27	500	3000	40	7.74	0.34	12.29	0.38	1.10	0.69
28	500	3000	50	9.68	0.14	0	0.14	2.26	0.715
29	500	5000	20	3.87	0.74	11.42	0.74	0.65	0.625
30	500	5000	30	5.81	0.26	22.3	0.34	3.43	0.67
31	500	5000	40	7.74	0.12	19.97	0.12	3.00	0.785
32	500	5000	50	9.68	0.05	33.44	0.05	1.58	0.88
33	700	1000	20	3.87	0.35	4.89	0.34	4.16	0.8
34	700	1000	30	5.81	0.57	12.18	0.56	2.36	0.79
35	700	1000	40	7.74	0.75	3.75	0.72	4.51	0.8
36	700	1000	50	9.68	0.64	17.7	0.67	4.69	0.9
37	700	2000	20	3.87	1.05	6.32	1.02	2.39	0.8
38	700	2000	30	5.81	1.3	13.67	1.33	2.29	0.78
39	700	2000	40	7.74	0.96	5.85	1.00	4.34	0.57
40	700	2000	50	9.68	0.8	18.81	0.78	2.78	0.64
41	700	3000	20	3.87	1.68	2.02	1.61	4.16	0.67
42	700	3000	30	5.81	1.16	9.42	1.18	1.72	0.55
43	700	3000	40	7.74	1.1	16.09	1.05	4.84	0.68
44	700	3000	50	9.68	0.52	28.03	0.52	0.36	0.75
45	700	5000	20	3.87	0.94	30.25	0.92	2.24	0.5
46	700	5000	30	5.81	0.9	5.45	0.89	1.41	0.63
47	700	5000	40	7.74	0.72	6.99	0.73	0.88	0.76
48	700	5000	50	9.68	0.18	15.48	0.18	2.16	0.71
					Average error =2.77 %

^a = insignificant bend angle

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