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What happens to the crater size if we decrease the pulse time keeping the current constant?(a) Increase(b) Decrease(c) Increase and decrease(d) None of the mentionedThis question was posed to me during a job interview.This key question is from EDM-Material Removal Rate topic in portion Thermal Processes of Advanced Machining

Answer»

Correct answer is (b) Decrease

The EXPLANATION is: By decreasing pulse TIME and keeping current CONSTANT, crater SIZE ALSO decreases.



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