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Chinese Journal of High Pressure Physics  > 2009  >  23(2): 91-97 .
LIU Yong-Hong, YU Li-Li, XU Yu-Long, JI Ren-Jie, LI Qing-Yun. Thermodynamic Characteristics of Machining Insulating Engineering Ceramics with Electrical Discharge Channel[J]. Chinese Journal of High Pressure Physics, 2009, 23(2): 91-97 . doi: 10.11858/gywlxb.2009.02.003
Citation: LIU Yong-Hong, YU Li-Li, XU Yu-Long, JI Ren-Jie, LI Qing-Yun. Thermodynamic Characteristics of Machining Insulating Engineering Ceramics with Electrical Discharge Channel[J]. Chinese Journal of High Pressure Physics, 2009, 23(2): 91-97 . doi: 10.11858/gywlxb.2009.02.003
shu

Thermodynamic Characteristics of Machining Insulating Engineering Ceramics with Electrical Discharge Channel

doi: 10.11858/gywlxb.2009.02.003

  • School of Electromechanical Engineering, China University of Petroleum, Dongying 257061, China

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  • Corresponding author: LIU Yong-Hong
  • Received Date: 08 Jul 2008
  • Rev Recd Date: 15 Oct 2008
  • Publish Date: 15 Apr 2009
    Abstract
  • A new technique of machining insulating engineering ceramics with instantaneous high temperature produced by electrical discharge channel (EDC) flowing insulating engineering ceramic surface is developed. The mathematical models for the temperature and thermal stress of machining insulating ceramics with EDC are established. The numerical simulation on the temperature gradient and thermal stress of electrical discharge machining insulating engineering ceramics are done. The distribution of the temperature gradient and thermal stress produced by EDC on the insulating engineering ceramic surface are given. The simulation results give the theoretic foundation for revealing the micro-scale mechanism of removing insulating engineering ceramics with EDC, predicting the microcosmic profile of insulating engineering ceramic surface machined by EDC, and selecting the electrical parameter for the new process.

     

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