Question
In an EDM process using RC relaxation circuit, a 12 mm diameter through hole is made in a steel plate of
50 mm thickness using a graphite tool and kerosene as dielectric. Assume discharge time to be negligible.
Machining is carried out under the following conditions:Resistance 40 ΩCapacitance 20 μFSupply voltage 220 VDischarge voltage 110 VThe time for one cycle, in milliseconds, is
50 mm thickness using a graphite tool and kerosene as dielectric. Assume discharge time to be negligible.
Machining is carried out under the following conditions:Resistance 40 ΩCapacitance 20 μFSupply voltage 220 VDischarge voltage 110 VThe time for one cycle, in milliseconds, is
Answer: Option A
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