Question

What are the values of current densities used in ECM?

(a) 0.1 to 2 A/cm^2

(b) 5 to 500 A/cm^2

(c) 600 to 1000 A/cm^2

(d) 1200 to 2800 A/cm^2

This question was addressed to me in an online interview.

This intriguing question comes from ECM topic in chapter Electrochemical Processes of Advanced Machining

Answer 1

The correct option is (b) 5 to 500 A/cm^2

For explanation: Current density values in ECM range between 5 to 500 A/cm^2.