Table 2.

Process parameters and their levels for Dry, Wet, and MQL grinding.

SL. No.	Parameter (s)	−α	Low (−1)	Centre (0)	High (+1)	+α
Dry, Wet, MQL
1	Depth of cut: $a_p$, (µm)	15	20	25	30	35
2	Table speed: $v_w$, (m/min)	3	5	7	9	11
3	Cutting Speed: $v_s$, (m/s)	15	20	25	30	35
For MQL only
4	MQL flow rate: Q, (mL/h)	50	100	150	200	250