摘要
整体叶轮作为复杂曲面零件中典型的一类,如何实现其高效率、高质量加工一直是许多学者和工程技术人员研究的重点。以整体叶轮车铣复合加工工艺为研究对象,提出一套工艺参数多目标优化方案。针对整体叶轮车铣加工工艺特点,以主轴转速n、进给速度vf、切削深度ap、切削宽度ae等工艺参数为优化变量,以加工工时、叶片变形量为目标函数,从机床性能、刀具性能、加工质量三方面界定约束条件,构建工艺参数多目标优化模型,用SQP优化算法进行求解。应用表明:采用优化后的工艺参数车铣加工整体叶轮,能大幅减小整体叶轮加工时间和叶片变形量。
Integral impeller, as a typical kind of complex curved surface parts, how to realize the high efficiency, high quality processing, has been a focus in the study of many scholars and engineers. The research on the optimization and application of turn-milling processing parameters of integral impeller is carried out, and an optimization project is put forward. According to the processing characteristics of integral impeller, taking spindle speed, federate, cutting depth and cutting width as optimizing variables, using processing time, deformation of impeller blade in the process of milling as objective functions, designing constraints form three aspects, it constructed the corresponding optimization mathematical model and solved it with SQP algorithm. The optimized processing parameters were applied in actual mill-turning process of integral impeller. The results showed that the processing time and deformation of impeller blade can be significantly reduced.
出处
《机械设计与制造》
北大核心
2015年第5期228-231,共4页
Machinery Design & Manufacture
基金
陕西省工业攻关项目(2012K09-24
2014K07-06)
西安市科技计划项目(CXY1439(3))
榆林市科技计划项目(2012175)
关键词
整体叶轮
车铣复合加工
多目标优化
SQP算法
Integral Impeller
Turn Milling Processing
Multi Objective Optimization
SQP Algorithm
