Question

What is the value of etching rate, which can be achieved using Chemical milling?

(a) 0.001 mm/min

(b) 0.025 mm/min

(c) 0.050 mm/min

(d) 0.075 mm/min

This question was addressed to me in a job interview.

I'm obligated to ask this question of CHM in portion Chemical Processes of Advanced Machining

Answer 1

The correct answer is (c) 0.050 mm/min

To explain I would say: While we use Chemical milling etch rates of around 0.025 mm/min are achieved.