Influence of pulse waveform on machining accuracy in electrochemical machining

  • Wei Chen
  • Fuzhu Han
  • Junhua Wang


Low machining accuracy has been a technical bottleneck for the application and promotion of electrochemical machining (ECM). Since the 1990s, it has been recognized by scholars that high-frequency pulsed power supply can improve the precision of ECM. But, in terms of the experimental results of our study, a new discovery was found that the increasing of the frequency has no effect on improving the machining accuracy of ECM. Comparing with the DC power supply, the experiment results show that the machining accuracy under pulsed power supply is decided by effective average voltage value, regardless of the frequency of the pulsed waveform, the duty cycle, and the pulse peak.


Electrochemical machining (ECM) Machining accuracy Pulsed power supply Pulse waveform 


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The authors would like to thank the China National Natural Science Foundation (51575308) for the support of this study.


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© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringTsinghua UniversityBeijingChina
  2. 2.Beijing Key Lab of Precision/Ultra-precision Manufacturing Equipments and ControlTsinghua UniversityBeijingChina

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