叶片电解加工阴极设计CAD/CAE/CAM专家系统

为了解决航空发动机叶片电解加工工具阴极设计自动化程度较低的难题,在电解加工基本原理的基础上,开发了专用的叶片电解加工计算机辅助阴极设计制造专家系统,主要介绍了该专家系统的基本结构、模块化组成和工作原理,并重点探讨了基于间隙内实际电场分布的叶片电解加工有限元阴极设计方法,最后通过一组工艺试验验证了该专家系统所设计阴极的加工精度.试验结果表明开发的阴极设计专家系统有较高的设计精度和良好的工作稳定性. 

CAD/CAE/CAM expert system of cathode design of turbine blades in electrochemical machining

ECM(electrochemical machining) is one of the main machining methods of the aero-engine blades production.However,the tool cathode design is very difficult,which limits the applications of ECM in modern industries.To solve the difficulties in automation of the tool cathode design of aero-engine blades in ECM,a specialized expert system of computer aided cathode design for aeroengine blades in ECM was developed on the basis of electrochemical machining foundational theories.The basic structure,module components and work principle of this expert system were discussed in detail.The finite element cathode design arithmetic based on the mathematics model of actual electric field distribution in electrode gap in ECM process was proposed.The experiments for verifying the machining accuracy of the design cathode were developed. The experimental results demonstrate that this cathode design expert system has high design accuracy and excellent operating stability.