CAJ | 학술논문

利用数值仿真追踪电解加工中被加工面的动态成形，对提高电解加工质量非常重要。在加工过程中，被加工面的形状不断变化，如何模拟时刻变化的三维曲面成了问题的关键。通过采用一种基于任意拉格朗日-欧拉法和重新划分网格的方法来处理三维形变问题，再根据法拉第定律并利用有限元法获得加工间隙内的电流密度分布，便可模拟出三维模型下电解加工中被加工面的形貌变化。
이용수치방진추종전해가공중피가공면적동태성형，대제고전해가공질량비상중요。재가공과정중，피가공면적형상불단변화，여하모의시각변화적삼유곡면성료문제적관건。통과채용일충기우임의랍격랑일-구랍법화중신화분망격적방법래처리삼유형변문제，재근거법랍제정률병이용유한원법획득가공간극내적전류밀도분포，편가모의출삼유모형하전해가공중피가공면적형모변화。
Electrochemical machining (ECM) is an important manufacturing method for modern industry. Because of the complex multi-field effects and the changeable boundary conditions ,the three-dimensional simulation of ECM process is a challenge issue. This paper proposes an applicable numerical method for the three-dimensional simulation of ECM based on arbitrary Lagrangian-Eulerian formulation (ALE) and remeshing method. These methods are presented aiming to avoid mesh distortion and to improve computational accuracy. The local current density is obtained following Faraday′s law. From the numerical simulation,the change of the anode shape during an ECM process is revealed.