Question

What are the values of feed rates used in ES drilling process?

(a) 0.01 to 0.5 mm/min

(b) 0.75 to 2.5 mm/min

(c) 3 to 4.5 mm/min

(d) 5 to 7.5 mm/min

I have been asked this question during an internship interview.

This is a very interesting question from Electrostream (Capillary) Drilling topic in division Electrochemical Processes of Advanced Machining

Answer 1

Right option is (b) 0.75 to 2.5 mm/min

The explanation is: Feed rate values used in ES drilling, range between 0.75 to 2.5 mm/min.