钛合金插铣过程温度场的数学建模与有限元分析  

Mathematical Modeling and FEA of Temperature Field in Plunge Milling Ti Alloy

作　　者：颜伟霞[1] 秦旭达[2] 何云[1] 聂廷芳 邵泽军[1] 张欣[3] 

机构地区：[1]燕京理工学院机电工程学院,河北三河065201 [2]天津大学机电工程学院,天津300072 [3]北京联合大学基础部,北京100101

出　　处：《数学的实践与认识》2017年第11期142-149,共8页Mathematics in Practice and Theory

基　　金：北京联合大学新起点计划项目资助(ZK10201616)

摘　　要：从金属切削理论出发分析了钛合金插铣过程的切削热产生机理,推导出工件的热传导方程式,并在此基础上建立钛合金插铣的数学模型,应用Galerkin有限元方法对工件的热传导方程进行推导计算,随后利用Matlab进行数值模拟,最终得到工件稳定后温度分布图.通过数值计算结果与实验结果对比,验证了有限元模型具有可靠和高精度优点.对钛合金插铣过程加工参数的优化和刀具的设计提供了重要参考依据.In this essay, at first through analyzing the cutting-heat in the process of^plungemilling Ti-Alloy from the metal cutting theory, the heat conduction equations of work piecewere concluded, and the mathematical model of the titanium plunging was established onthis basis. Then calculating the heat conductionequation in FEM, and using Matlab fornumerical simulation, we get the temperature distribution of work piece. Finally comparingthe numerical results with experimental data, we can verify the accuracy and reliability of thefinite element model. It will be an important reference to the cutting parameter optimizationand tool design in the process of titanium plunge milling.

关 键 词：有限元方法 钛合金 插铣 温度分布 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]