Keeping all other parameters unchanged, the tool wear in electrical discharge machining (EDM) would be less if the tool material has

High thermal conductivity and high specific heat

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High thermal conductivity and low specific heat

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Low thermal conductivity and low specific heat

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Low thermal conductivity and high specific heat

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Solution

The correct option is A High thermal conductivity and high specific heat
Keeping all other parameters unchanged, the tool wear in electrical discharge machining (EDM) would be less if the tool material has high thermal conductivity and heat dissipation rate .

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