Abstract:The air compressor blade profile and processing technology are complex. In order to reduce the processing cost and improve the processing efficiency, the machining simulation of a certain type of complex thin-walled aero engine compressor blade parts was studied. The structural characteristics of the blade was analyzed. Combining with the principle of formulating the machining process route, the blade machining process route was formulated and the tool path was planned. According to the five-axis machine tool stroke and movement characteristics, a special post-processor for the five-axis machine tool was customized, the NC program was generated for blade machining by post-processing the tool trajectory, at the same time the total machining time was output. A simulation model of a vertical five-axis CNC machine tool was constructed, the machining process was verified by simulation experiments.Then the actual machining trial cutting steps were replaced, production costs and time were saved. The simulation results verifies the rationality of the processing technology and the correctness of the post-processing, laying a foundation for further optimization of processing parameters and analysis of processing errors.