Question

What are the machining speeds recommended for high surface quality?

(a) 1 – 250 mm/min

(b) 250 – 500 mm/min

(c) 500 – 750 mm/min

(d) 750 – 100 mm/min

This question was addressed to me in an internship interview.

Query is from ECG-Accuracy, Applications, Advantages and disadvantages topic in chapter Hybrid Electrochemical Processes of Advanced Machining

Answer 1

The correct answer is (b) 250 – 500 mm/min

Explanation: The machining speeds recommended for high surface quality are between 250 and 500 mm/min in ECG.