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微细电火花加工过程存在极大的复杂性和随机性,针对分子动力学模型以及基于传热学理论的数值模型在研究微细电火花加工机理时存在的不足,采用双温模型-分子动力学混合建模方法构建微细电火花加工中的阳极模型,并基于MPI并行技术建立相应并行仿真平台。仿真模型通过在放电通道电子系统内设置热源来模拟放电通道对阳极材料的热作用,进而通过分析放电加工过程中材料的晶格温度、应力和电子场温度的时间-空间演变过程等来分析阳极材料在不同能量输入情况下的蚀除机理。
Micro-EDM has great complexity and randomness. According to the molecular dynamics model and the numerical model based on heat transfer theory in the study of the mechanism of micro-EDM, Modeling method to build anode model in the micro-EDM, and based on MPI parallel technology to establish the corresponding parallel simulation platform. The simulation model simulates the thermal effect of the discharge channel on the anode material by setting the heat source in the discharge channel electronic system and then analyzes the anode by analyzing the lattice temperature and stress of the material and the time-space evolution of the electron field temperature Erosion mechanism of materials under different energy input conditions.