摘要
为了缩短阴极研制周期,按照无源导电媒质中的电场建立间隙电场的数学模型,按照气液两相流建立流场的数学模型,根据膛线电解加工工艺参数设置边界条件,采用COMSOL Multiphysics3.4多物理场耦合软件对加工间隙进行数值模拟,结合工艺试验的数据,分析加工间隙电场分布对实际加工精度的影响。结果表明,当阴极工作齿向内收一定角度,有利于减小膛线槽壁倾角和槽底圆角,计算机模拟与工艺试验结果一致。
In order to shorten the preparation period of cathode ,the mathematical model of the electric .field in gap is built according to the non-source field of conductive medium,card the model of the flow field in gap according to gas-liquid two phase flow. The boundary condition is chosen according to the parameter of the ECM experiment on tube riflings. COMSOL Multiphysics is used to simulate the machining gap ,and the influence of electric field distribution on actual machining precision is analyzed in the light of relevant date collected by experiment, h is demonstrated that obliquity of groove wall and circle of groove bottom in rifling will be decreased as side wall of cathode working tooth incline toward inner at a certain angle. The simulation results are in agreement with the experiments.
出处
《机械设计与制造》
北大核心
2010年第4期125-127,共3页
Machinery Design & Manufacture
基金
总装备部"十一五"装备预先研究重点资助项目(51318030401)
