Tool Wear Detection Based on Duffing-Holmes Oscillator

Table 4

The critical value for 27 group sharp tool data.

No.	𝑟	No.	𝑟	No.	𝑟
1	0.724896	10	0.724276	19	0.72371
2	0.724633	11	0.724203	20	0.723873
3	0.724716	12	0.724249	21	0.723819
4	0.723738	13	0.723154	22	0.723945
5	0.724714	14	0.724004	23	0.723782
6	0.724467	15	0.724051	24	0.723759
7	0.724533	16	0.723862	25	0.723975
8	0.724526	17	0.724141	26	0.723982
9	0.724561	18	0.723814	27	0.72379