Intelligent Turning Tool Monitoring with Neural Network Adaptive Learning

Table 7

Energy proportion (10²) of AE signal after wavelet decompositions in each frequency band.

	A8	D8	D7	D6	D5	D4	D3	D2	D1
Initial wear	0.019	0.77	0.268	3.092	8.868	11.683	47.688	26.72	0.892
Normal wear	0.041	0.993	0.373	6.331	16.38	16.969	38.883	19.24	0.79
Severe wear	0.178	4.411	1.116	21.599	23.418	16.601	17.31	9.754	5.613