关键词: 微型叶轮, 5坐标加工, 全局干涉, 数控编程, 计算机辅助制造

Abstract: The complexity of compressor's blisk of turbine engines caused difficulties in the precise Computer Aided Design (CAD) modeling and Computer Numerical Control (CNC) machining. Based on the UG platform, a 5axis CNC program to machine a mini engine blisk was developed, and the tool path algorithm for non interference correction was also proposed according to the principles of tool positioning by global interference correction. Experimental results indicated that the computation speed was fast, the algorithm was effective, and it was flexible to operate, easy to control the machining accuracy.

Key words: mini engine blisk, 5axis machining, global interference, numerical control programming