5A06铝合金表面完整性铣削参数优化方法  

A Milling Parameter Optimization Method Based on Improving the Surface Integrity of 5A06 Aluminum Alloy Workpiece

作　　者：王鑫[1] 徐雷[1] 肖乃鑫 张国锋 WANG Xin;XU Lei;XIAO Nai-xin;ZHANG Guo-feng(School of Manufacturing Engineering,Sichuan University,Chengdu 610000,China)

机构地区：[1]四川大学机械工程学院,成都610000

出　　处：《组合机床与自动化加工技术》2021年第4期150-153,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：四川省2019年四川省财政厅军民融合产业发展专项项目(2020QT-川财建[2019]331号-JG2020072)。

摘　　要：为改善5A06铝合金工件表面完整性,提出了一种综合考虑表面粗糙度和残余应力的多目标铣削参数优化方法。首先,基于中心复合设计实验方法,应用响应曲面法对5A06铝合金工件的表面粗糙度和残余应力建模,构建了以5A06铝合金工件铣削参数为变量,以较高的表面完整性为优化目标的多目标优化模型;其次,采用改进型非支配排序遗传算法对数学模型求解;最后,应用基于绝对理想点的TOPSIS法求解出最优解。该方法为提高铝合金工件的表面完整性提供了理论支持。In order to improve the surface integrity of 5A06 aluminum alloy workpiece,a multi-objective milling parameter optimization method considering surface roughness and residual stress was proposed.Firstly,based on the experimental method of central composite design,the response surface method is used to model the surface roughness and residual stress of 5A06 aluminum alloy workpiece,and a multi-objective optimization model with milling parameters of 5A06 aluminum alloy workpiece as variables and high surface integrity as optimization objective is constructed.Then,the mathematical model is solved by the improved non dominated sorting genetic algorithm.Finally,the application is based on the absolute The optimal solution is obtained by TOPSIS method.This method provides theoretical support for improving the surface integrity of aluminum alloy workpiece.

关 键 词：表面完整性 多目标优化 响应曲面法 遗传算法 

分 类 号：TH162[机械工程—机械制造及自动化] TG65[金属学及工艺—金属切削加工及机床]