关键词: 整体叶轮, 电解加工, 仿真, 自动编程, 数控系统, 航空发动机

Abstract: To solve the programming problem in the Numerical Control(NC)ElectroChemical Machining(ECM)of aeroengine integral impeller, a simulation and programming platform used for ECM was developed. A virtual assembly model of NC ECM machine was firstly constructed in the platform. Technologies such as model slicing, components constraint, matrix transformation, and WAVE technology were used to realize functions as process data extraction, motion path calculation, axes moving, and consecutive operation between tool and part. The platform implemented machining simulation, automatic generation of NC programs. The over-cut and motion interference in machining could be checked by the simulation. The simulation system was applied in the NC ECM of the large diameter integral impeller. Results showed that the application of the software effectively solved programming problem, shortened the programming cycle, and increased the program accuracy.

Key words: integral impeller, electrochemical machining, simulation, automatic programming, numerical control systems, aeroengine