Spark gap in Electrical Discharge Machining (EDM) - Manufacturing Processes - 2

Q.  The spark gap in Electrical Discharge Machining (EDM) process is maintained such that
- Published on 04 Aug 15

a. the gap voltage is around 99% of supply voltage
b. the gap voltage is around 70% of supply voltage
c. the gap voltage is around 50% of supply voltage
d. the gap voltage is around 10% of supply voltage

ANSWER: the gap voltage is around 70% of supply voltage

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    Discussion

  • Pankaj Chaugule   -Posted on 19 Nov 15
    - A controlled erosion of electrically conducting material by using fast and repetitive electric discharge between the tool and the workpiece is called as electrical discharge machining (EDM).

    - The spark gap in Electoral Discharge Machining (EDM) process is maintained such that the gap voltage is around 70% of supply voltage.

    - Generally, the spark gap is adjusted between 0.01 to 0.1 mm.

    - The spark gap voltage is maintained at 70% of the supply voltage for charging the capacitor bank.

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