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1. The application of gray theory on wire cut electric discharge machine non-resistance sparkle
circuit prediction, 2017
Shao-Hsien Chen ∙ Chen-Peng Wang, Department of Mechanical Engineering
National Chin-Yi University of Technology Taichung City, Taiwan. 30 November 2017.
Introduction
This study conducts the research and design on
the discharge circuit of wire cut electric
discharge machine (WEDM) system so that the
original resistance discharge circuit is designed
and improved to be non-resistance discharge
circuit.
Impact on the machining power from different
Circuits
Summary
 The longer the cutting time, the greater
the power consumption of machining.
 After machining for 7 h, the power
consumption impacts of resistance
sparking circuit is greater than the non-
resistance sparkingcircuitbecomemore
significant.
 The difference of cutting power
between non-resistance and resistance
sparking circuit is 6 KWh
 The energy discharged through the
resistor in machining, after conversion
and loopback, returns to the workpiece
and the electrode,whichisrecycledand
reused and the electrode, which is recycled and
reused.
Conclusion
We can conclude thatthe powerconsumptionof
machining between non-resistance sparking
circuit and resistance sparking circuit increase
whenthe cuttingtime isincrease.Whenthenon-
resistance sparking circuit is used, the power
consumptionof 7-h machiningisabout 40 KWh,
whichsavesthe powerconsumptionby 10~20%
whencomparedto general sparkingcircuit. The
improvedgraypredictionmodel GM(1,1) + ESM
can be used to reduce the error. In this way, it
reduces the power consumption and
temperature generation in machining circuit.