Question

What are the values of general feed rates used for drilling in EDM?

(a) 0.1 mm/min

(b) 0.3 m/min

(c) 0.5 mm/min

(d) 0.7 mm/min

The question was asked by my college director while I was bunking the class.

This intriguing question originated from EDM-Applications in division Thermal Processes of Advanced Machining

Answer 1

Right answer is (a) 0.1 mm/min

For explanation I would say: Usually a feed rate of 0.10 mm/min is used for drilling the work piece using Electro discharge machining.