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What are the values of thickness of annealed surface obtained while machining using EDM?(a) 1 to 25 µm(b) 50 to 200 µm(c) 200 to 500 µm(d) 500 to 1000 µmI had been asked this question in an interview for job.My doubt stems from EDM-Heat Affected Zone (HAZ) in chapter Thermal Processes of Advanced Machining

Answer»

Correct answer is (B) 50 to 200 µm

The best I can EXPLAIN: Values of annealed SURFACE THICKNESS range from 50 µm to 200 µm.



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