摘要
研究利用电解加工技术对变截面内冷却通道(竹节孔)进行加工。针对电解加工时加工尺寸难以测量与控制的问题,对基于有限元法的竹节孔变截面内冷却通道电解加工进行模拟分析,基于APDL语言建立内冷却通道电解加工有限元模型,提取加工后冷却孔成形尺寸数值,并以模拟参数为基础指导实际实验。理论与实验结果对比表明,该方法不仅减少了前期大量实验论证工作,而且加工效率明显提高。
This study focused on the fabrication of turbulated cooling hole on the basis ot electrochemical machining. FEM was used to simulate the forming of turbulators due to hard measuring and controlling of dimensions in ECM. A FEM model was developed to simulate the shape changing of the internal cooling duct based on APDL and the dimension of turbulators could be obtained in real time. Finally,the experimentation was carried on according to the simulation results. Comparisons between theoretical and experimental results indicate the validation of this method. Furthermore, pre--trials are saved and the machining efficiency is increased.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2009年第18期2240-2243,共4页
China Mechanical Engineering
基金
国家自然科学基金资助重点项目(50635040)
浙江省教育厅基金资助项目(GKD1027488)
关键词
有限元方法
内冷却通道
电解加工
竹节孔
finite element method（FEM）
internal cooling hole
electrochemical machining（ECM） turbulated hole
