What is the value of the grit number of the abrasives used in ECG?
(a) 1 – 20
(b) 20 – 60
(c) 60 – 320
(d) 350 – 640
The question was posed to me in semester exam.
My question comes from Electrochemical Grinding-Introduction topic in portion Hybrid Electrochemical Processes of Advanced Machining