Question

What are the values of voltages used in ES drilling process?

(a) 10 to 40 V

(b) 40 to 70 V

(c) 70 to 150 V

(d) 150 to 300 V

This question was posed to me by my college director while I was bunking the class.

I need to ask this question from Electrostream (Capillary) Drilling in portion Electrochemical Processes of Advanced Machining

Answer 1

Right answer is (c) 70 to 150 V

Easiest explanation: Voltage values used in ES drilling, range between 70 to 150 V.