The maximum depth of damaged layer is how many times that of average surface roughness?(a) 1.5 time(b) 2 times(c) 2.5 times(d) 3 timesI had been asked this question by my college director while I was bunking the class.The query is from EDM-Surface Integrity topic in section Thermal Processes of Advanced Machining

The maximum depth of damaged layer is how many times that of average s

1.	The maximum depth of damaged layer is how many times that of average surface roughness?(a) 1.5 time(b) 2 times(c) 2.5 times(d) 3 timesI had been asked this question by my college director while I was bunking the class.The query is from EDM-Surface Integrity topic in section Thermal Processes of Advanced Machining
Answer» RIGHT option is (C) 2.5 TIMES The explanation is: Depth of damaged layer is two and half times the average surface roughness VALUE.

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