Influence of Drilling Parameters on the Delamination and Surface Roughness of Insulative-Coated Glass/Carbon-Hybrid Composite

Table 5

Response table for delamination at the entry and exit (S/N ratio); smaller is better.

Level	Cutting speed	Feed rate	Coating thickness
1	-0.6552	-0.8014	-0.6728
2	-0.7409	-0.7549	-0.7254
3	-0.9384		-0.7204
4			-0.9941
Delta	0.2832	0.0465	0.3213
Rank	2	3	1