Experimental study on energy consumption of energy-saving pulse power for WEDM

  • Yinsheng Fan
  • Chaojiang LiEmail author
  • Jicheng Bai
  • Qiang Li


Wire electrical discharge machining (WEDM) is widely used in aerospace, mold manufacturing, automotive, and other fields. But now, traditional WEDM pulse power contains current-limiting resistor, and its energy utilization rate is low. Meanwhile, discharge energy of WEDM pulse power cannot be accurately controlled, and there is no unified understanding of distribution about discharge energy. In this paper, the pulse power improves energy utilization rate by removing current-limiting resistor and adopting single-arm pulse width modulation control method which controls peak current and modulates long short-circuit pulse width. Experiments proved that the energy-saving pulse power improves energy utilization rate by, approximately, 67.6 % than traditional pulse power. The paper analyzed a single-pulse energy waveform of the energy-saving pulse power and calculated each spark pulse energy and total energy provided by pulse power. It found that gap spark discharge energy only accounted for about 51 % of the energy provided by the pulse power, and other energy was mainly consumed in switching loss of power switch and parasitic resistance of pulse power.


WEDM Energy-saving pulse power Energy utilization rate Energy consumption analysis 


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  1. 1.
    Garg RK, Singh KK, Sachdeva A, Sharma VS, Ojha K, Singh S (2010) Review of research work in sinking EDM and WEDM on metal matrix composite materials. Int J Adv Manuf Technol 50:611–624CrossRefGoogle Scholar
  2. 2.
    Ho KH, Newman ST, Rahimifard S, Allen RD (2004) State of the art in wire electrical discharge machining (WEDM). Int J Mach Tools Manuf 44:1247–1259CrossRefGoogle Scholar
  3. 3.
    Hu CJ, Yu JS (1979) Overview of the physical nature on electrical discharge machining. Electromachining & Mould 1:1–15Google Scholar
  4. 4.
    Kunieda M, Lauwers B, Rajurkar KP, Schumacher BM (2005) Advancing EDM through fundamental insight into the process. CIRP Ann 54:64–87CrossRefGoogle Scholar
  5. 5.
    Kunieda M (2010) Advancements in fundamental studies on EDM gap phenomena. In: Proceedings of the 16th International Symposium on Electromachining, Shanghai, China, 15-22Google Scholar
  6. 6.
    Abbas N, Solomon DG, Bahari MF (2007) A review on current research trends in electrical discharge machining. Int J Mach Tools Manuf 47:1214–1228CrossRefGoogle Scholar
  7. 7.
    Yu JS (2011) Theoretical foundation of electrical discharge machining. National Defence Industry Press, BeijingGoogle Scholar
  8. 8.
    Luo YF (1995) An energy-distribution strategy in fast-cutting wire EDM. J Mater Process Technol 55:380–390CrossRefGoogle Scholar
  9. 9.
    Hargrove SK, Ding D (2007) Determining cutting parameters in wire EDM based on workpiece surface temperature distribution. Int J Adv Manuf Technol 34:295–299CrossRefGoogle Scholar
  10. 10.
    Banerjee S, Prasad BVSSS (2010) Numerical evaluation of transient thermal loads on a WEDM wire electrode under spatially random multiple discharge conditions with and without clustering of sparks. Int J Adv Manuf Technol 48:571–580CrossRefGoogle Scholar
  11. 11.
    Dibitonto DD, Eubank PT, Patel MR, Maria AB (1989) Theoretical models of the electrical discharge machining process I. J Appl Phys 66:4095–4103CrossRefGoogle Scholar
  12. 12.
    Xia H, Kunieda M, Nishiwaki N (1996) Removal amount difference between anode and cathode in EDM process. Int J Electr Mach 1:45–52CrossRefGoogle Scholar
  13. 13.
    Xia H, Hashimoto H, Kunieda M (1996) Measurement of energy distribution in continuous EDM process. J Jpn Soc Precis Eng 62:1141–1145CrossRefGoogle Scholar
  14. 14.
    Li CJ, Bai JC, Guo YF, Lu ZS, Ma W (2011) Research of temperature field simulation on electrode wire wear for WEDM. Adv Mater Res 199–200:1827–1831CrossRefGoogle Scholar
  15. 15.
    Li CJ (2012) Research on energy saving pulse power supply and its floating threshold detection technologies for WEDM. Dissertation, Harbin Institute of TechnologyGoogle Scholar

Copyright information

© Springer-Verlag London 2014

Authors and Affiliations

  • Yinsheng Fan
    • 1
  • Chaojiang Li
    • 2
    Email author
  • Jicheng Bai
    • 1
  • Qiang Li
    • 1
  1. 1.School of Mechatronics EngineeringHarbin Institute of TechnologyHarbinChina
  2. 2.Department of Mechanical EngineeringTsinghua UniversityBeijingChina

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