摘要
压电自适应脉冲式电火花加工是一种新型电火花加工方法。通过分析放电通道的形成过程,采用PIC/MCC相结合的方法,对压电自适应脉冲式电火花加工放电通道进行了微观粒子模拟,得到带电粒子(电子和正离子)在放电通道内的分布规律。仿真结果显示放电通道位形呈腰鼓状,通道中任意横截面带电粒子的空间分布符合高斯分布,为电火花加工温度场仿真中放电通道内高斯热源模型的建立提供了理论依据。放电通道模拟对电火花加工机理的研究具有重要意义。
Self-activated EDM is a new machining method. The mechanism of discharge channel forming is analyzed in this paper. Particle-in-cell plus Monte-Carlo Collision method is used to simulate the particle flow in discharge channel of self-activated EDM and the distribution of particles with elec- tric charge is clarified. From the simulation, movement phase diagram of electronic and positive ions is gotten and the density distribution being similar to shape of gaussian distribution is proved. Simulation of discharge channel has important meaning to mechanism study of EDM.
出处
《电加工与模具》
2011年第5期1-4,共4页
Electromachining & Mould
基金
国家自然科学基金资助项目(51075239)
教育部回国留学人员人员科研启动基金(2010-1561)
新世纪优秀人才支持计划(2007-70)
