Question

What is the value of surface roughness, which is generally obtained using Chemical milling?

(a) 0.01 – 0.08 µm

(b) 0.1 – 0.8 µm

(c) 1 – 8 µm

(d) 10 – 80 µm

I have been asked this question in a job interview.

My question comes from CHM topic in section Chemical Processes of Advanced Machining

Answer 1

The correct option is (b) 0.1 – 0.8 µm

The best explanation: Surface roughness obtained when general conditions are applied, is between 0.1 – 0.8 µm.