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ECM is usually characterized as low accuracy machining, for which of the following reason?

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in Advanced Machining by (962k points)
ECM is usually characterized as low accuracy machining, for which of the following reason?

(a) Narrow gap width

(b) Wider gap width

(c) High current densities

(d) All of the mentioned

I had been asked this question at a job interview.

My enquiry is from ECM-Applications and Micro-ECM topic in portion Electrochemical Processes of Advanced Machining

1 Answer

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Best answer
Right option is (b) Wider gap width

The explanation: ECM is usually characterized as low accuracy machining because of its wider machining gap.

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