整体结构框类零件加工变形仿真与实验研究  

Integrated Frame Machining Deformation and Experiment Research

作　　者：万晓航[1] 董兆伟[2] 刘胜永[3] 

机构地区：[1]河北工业职业技术学院,石家庄050091 [2]河北广播电视大学,石家庄050070 [3]河北师范大学,石家庄050011

出　　处：《煤矿机械》2015年第12期89-91,共3页Coal Mine Machinery

基　　金：河北省科技支撑计划项目(05212105D);河北工业职业技术学院博士基金资助项目(BZ1402)

摘　　要：建立了三维整体结构框类零件的有限元分析模型,利用单元生死技术仿真材料的去除过程。研究了毛坯初始残余应力释放引起的加工变形规律,并且设计了切削实验,使用三维坐标测量仪测量了每次铣削加工变形,通过仿真数据与实验数据比较分析,只要建立正确的分析模型,可以预测零件加工变形,从而制定出有利于减小加工变形的合理加工工艺,对于提高大型整体结构件的加工效率和产品精度具有重要意义。The finite element analysis model of machining deformation of 3D integral frame is established,and the removal process of the material is simulated by using the technology of element birth and death. The deformation law of the initial residual stress release caused by the initial residual stress is studied, and the cutting experiment is designed, and the deformation of each milling is measured by using a three-dimensional coordinate measuring machine. Through the comparative analysis of the simulation data and the experimental data, it can make a conclusion that establishment of a correct analysis of the model can predict the machining deformation, and reduce the machining deformation.

关 键 词：整体结构件 残余应力释放 加工变形 生死单元 切削实验 

分 类 号：TH161[机械工程—机械制造及自动化]