Question

What are the values of current densities used in the process of EBM?

(a) 5 and 15 A/cm^2

(b) 15 and 20 A/cm^2

(c) 20 and 30 A/cm^2

(d) 40 and 60 A/cm^2

This question was addressed to me in an online interview.

The origin of the question is Electronbeam Machining-Introduction, Equipment and Material removal in section Thermal Processes of Advanced Machining

Answer 1

Right answer is (a) 5 and 15 A/cm^2

Explanation: The values of the current densities used in EBM lie between 5 and 15 A/cm^2.