Question

Typical roundness error in graphite, resulted due to lateral vibrations is between?

(a) 01 – 20 μm

(b) 20 – 60 μm

(c) 60 – 100 μm

(d) 100 – 150 μm

I have been asked this question at a job interview.

I need to ask this question from USM in portion Mechanical Processes of Advanced Machining

Answer 1

Right answer is (b) 20 – 60 μm

Best explanation: The roundness is between 20 – 60 μm while machining graphite by Ultrasonic Machining.