An efficient three-axis numerically controlled rough-cutting machining approach on five-axis machine for an integral centrifugal impeller

作者：Chen, Y.; Mei, G. F.; Wang, J. B.; Yao, C. Y.; Gao, J.^*

来源：Scientia Iranica, 2015, 22(5): 1891-1898.

• Centrifugal impeller
• Unit Machining Regions (UMRs)
• Simultaneous three-axis NC machining
• Five-axis machining
• Cutting simulation on Vericut software

To improve the machining efficiency for the conventional five-axis Numerically Controlled (NC) machining of a centrifugal impeller, this paper presents an efficient simultaneous three-axis NC machining approach on five-axis machine instead of simultaneous five-axis NC machining technology. On the basis of the characteristic curves of an impeller and its projection graphs, the rough-cut surface of blades is partitioned into several Unit Machining Regions (UMRs). The rotating and tilting angles of a five-axis machine bed are calculated and fixed in advance to support the simultaneous three-axis NC machining of each UMR. Tool paths with a zigzag shape are generated to avoid interference and collision between the cutter and the impeller blades based on the simultaneous three-axis control approach on five-axis machine bed. A prototype model of an impeller with nine blades is established, and its final tool paths in each UMR are verified by means of a cutting simulation function on Vericut software. Simulation results demonstrate that the simultaneous three-axis machining approach on five-axis machine bed can significantly improve the machining efficiency compared to the conventional five-axis machining technology.

• 出版日期2015-10
• 单位山东大学