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What is the frequency of the pulse of electrons used in EBM process?(a) 10 Hz(b) 10^2 Hz(c) 10^3 Hz(d) 10^4 HzI had been asked this question in a national level competition.Enquiry is from Electronbeam Machining-Introduction, Equipment and Material removal in division Thermal Processes of Advanced Machining |
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Answer» RIGHT choice is (d) 10^4 HZ Easiest EXPLANATION: A pulsed electron beam at 10^4 Hz reduces the temperature of the WORK piece OUTSIDE the region being machined. |
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