High Speed Grinding of EN31 Steel with Alumina Nanofluid Coolant

Table 10

Surface roughness reduction by coolant and lubricant at constant feed.

Feed	100 mm/sec		125 mm/sec		150 mm/sec		175 mm/sec
DoC (μm)	Wet than dry (%)	Nanofluid than wet (%)	Wet than dry (%)	Nanofluid than wet (%)	Wet than dry (%)	Nanofluid than wet (%)	Wet than dry (%)	Nanofluid than wet (%)
10	2.44	4.17	4.02	20.96	2.87	9.85	11.19	16.93
20	7.50	13.51	12.38	15.22	15.75	12.17	25.45	10.04
30	12.80	25.54	16.00	22.38	23.05	19.48	26.59	22.59
40	23.61	19.55	19.02	31.58	24.26	25.49	22.44	34.16