| 微细电火花放电通道自身磁场仿真研究 |
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| 引用本文： | 彭子龙,钱雪立,张艺耀,李一楠.微细电火花放电通道自身磁场仿真研究[J].电加工与模具,2016(5):14-18. |
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| 作者姓名： | 彭子龙 钱雪立 张艺耀 李一楠 |
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| 作者单位： | 青岛理工大学机械工程学院,山东青岛,266520 |
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| 基金项目： | 国家自然科学基金资助项目(51105217)；青岛市应用基础研究项目(14-2-4-84-jch) |
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| 摘 要： | 针对微细电火花加工中放电通道等离子体电流沿电极轴向产生较强的环向磁场问题,以放电等离子体理论和麦克斯韦方程为基础,基于假设,建立了放电通道自身磁场的物理模型。结合放电通道自身磁场形式和磁场分布的特点,从静磁场微分方程出发,给出了该物理模型的理论求解方法,并应用Ansoft Maxwell有限元分析软件,对微细电火花放电通道的磁场分布和磁场强度进行了仿真分析,得到了放电通道自身磁场特性的变化规律,以及微细电火花加工工艺参数对放电通道等离子体自身磁场强度的影响规律。
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| 关 键 词： | 微细电火花加工 放电通道 自身磁场 仿真 |
Sim ulation of Self-magnetic Field in Discharge Channel of Micro EDM |
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| Abstract: | A im ing at the stronger annular m agnetic field phenom enon along the axial direction of the discharge channel plasm a current in m icro EDM ,a physical m odel of the discharge channel on its ow n m agnetic field is established on the basis of discharge plasm a theory and the M axw ell equations. Com bined w ith the characteristics of discharge channel form and the m agnetic field distribution,the solving m ethod of physical m odel is given from the view of static m agnetic field differential equation. The m agnetic field distribution and strength of discharge channel in m icro EDM have been sim ulated using A nsoft M axw ell FE M softw are. Through the sim ulation analysis,the variation law of the self m agnetic field characteristic of the discharge channel is obtained. The influence of the m icro EDM param eters on the m agnetic field intensity in discharge channel is clear as w ell. |
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| Keywords: | m icro E D M discharge channel self-m agnetic field sim ulation |
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