薄壁铝合金箱体零件数控加工技术研究  

Research on NC machining technology of thin-walled aluminum alloy box parts

作　　者：韩军[1] 董冰洋 邵帅 沈伟东 庞楠楠 HAN Jun;DONG Bingyang;SHAO Shuai;SHEN Weidong;PANG Nannan(School of Mechanical Eingeering,Inner Mongolia University of Science&Technology,Baotou 014010,CHN)

机构地区：[1]内蒙古科技大学机械工程学院,内蒙古包头014010

出　　处：《制造技术与机床》2023年第10期123-129,共7页Manufacturing Technology & Machine Tool

基　　金：内蒙古科技大学《数控加工几何与物理虚拟仿真实验》一流课程。

摘　　要：针对某薄壁铝合金箱体零件因侧壁过薄易装夹变形与铣削变形导致精度降低的问题,设计了专用夹具并进行有限元分析,使装夹变形量从0.0157 mm减小到0.00598 mm,减小了61.9%;通过Design-Expert软件建立参数样本并生成目标函数,采用人工蜂群算法对目标函数进行优化,获取了一组铣削合力最小的铣削参数组合并输出预测值,利用ABAQUS软件对所输出参数进行仿真模拟,使铝合金薄壁箱体的铣削合力减小了35.3%;最后进行了实际加工实验,对零件尺寸进行测量,均符合公差范围。研究表明该方法对薄壁铝合金箱体零件提高加工尺寸精度有重要意义。The problem of thin-walled aluminum alloy box parts due to thin side walls and milling deformation caused by the reduction of accuracy.A special fixture was designed and finite element analysis was performed,and the clamping deformation was reduced from 0.0157 mm to 0.00598 mm,a reduction of 61.9%;parameter samples were created and objective functions were generated by Design-Expert software,and an artificial bee colony algorithm was used to optimize the objective functions,and a set of milling parameters with the minimum milling force was obtained and the predicted values were output.ABAQUS software was used to simulate the output parameters,and the optimized results reduced the milling force of the thin-walled aluminum alloy box by 35.3%;finally,the actual machining experiments were conducted,and the dimensions of the parts were measured to be within the tolerance range.The study shows that the method is important for the thin-walled box parts to improve the machining dimensional accuracy.

关 键 词：专用夹具 铣削参数优化 人工蜂群优化算法 薄壁箱体 

分 类 号：TH16[机械工程—机械制造及自动化]