论文部分内容阅读
In this paper,the main problems of aluminum alloy integrated impeller 5-axis CNC high speed machining are studied systematically.First of all,the milling force model is established,the cutting force coefficients are solved through milling experiments,and the accuracy of the model is verified.Second,the hammering method is used to obtain modal changes of the blade in different processing conditions.Then,based on the milling force coefficients and modal experimental results,high-speed milling stability is researched according to the milling dynamics model.The relationship between the limit axial depth of cut and spindle speed is analyzed and a high-speed milling stability limit diagram is drawn.Finally,the tool posture and path are optimized and on the basis of this the rapid detection of the impeller blade surface performance parameters are carried.Application of the above research results,the processing efficiency of one type of aluminum alloy integrated impeller is improved by 35%,the blade surface measurement efficiency is improved by 10 times,and both the over-cut and external waviness on the blade surface are completely eliminate,besides,the quality has improved significantly to meet the requirements of the scene.