The Key Process Technology Research of Open Impeller Processing

The whole impeller machining technology has long been an important object of study, and has been widely used in aerospace applications. In this paper, CNC machining technology for the whole open impeller is the object of study. First, the geometric characteristics of such parts and processing difficulties are analyzed, and then the key technologies for the rough and the finishing are made. The key technologies described in the paper comprise the building of the leaf ruled envelope surface and the choice of tool axis vector in plunge mill rough process, and the whole leaf processing cutting tool path planning using the parameters method in the finishing process. Finally, completed the machining simulation verification base on VERICUT software, and finished the whole process of the open impeller machining.