Intelligent Turning Tool Monitoring with Neural Network Adaptive Learning

Table 5

Energy proportion (10²) of the vibration signal in each frequency band after wavelet packet decompositions.

No.	A1	A2	A3	A4	A5	A6	A7	A8
Initial wear	9.955	2.999	17.77	5.762	3.607	3.146	17.85	6.105
Normal wear	12.42	2.252	16.44	2.877	3.708	2.87	15.68	5.308
Severe wear	4.575	0.965	19.20	1.283	3.218	2.298	11.19	3.675
No.	A9	A10	A11	A12	A13	A14	A15	A16
Initial wear	2.115	2.325	6.591	3.453	4.055	3.371	6.933	3.953
Normal wear	2.27	2.556	8.706	4.231	3.92	3.493	8.855	4.408
Severe wear	1.976	2.854	15.43	6.708	3.346	3.649	13.72	5.903