基于计算机模拟的法兰盘激光表面热处理过程分析  

Analysis of Laser Surface Heat Treatment Process of Flange Plate Based on Computer Simulation

作　　者：王丹萍[1] 

机构地区：[1]长江工程职业技术学院,湖北武汉430200

出　　处：《热加工工艺》2016年第18期213-216,共4页Hot Working Technology

基　　金：湖北省教育科学"十二五"规划课题(2013B311)

摘　　要：利用计算机模拟激光热处理过程有利于减小试验成本。本文通过JMat Pro软件建立了考虑相变并依赖于温度的材料模型,利用耦合傅立叶传热模型和固体力学模型建立了法兰盘激光热处理热固耦合模型,分析了在激光热处理过程中法兰盘的动态温度分布、残余应力及工件变形情况。结果表明:在激光光束作用域前部温度低于作用域的后部温度。随着激光热源撤去及热传递的进行,法兰盘内部温度明显高于外部温度,且法兰盘表面应力开始逐渐均匀化,法兰盘内部应力比较大而边缘应力较小。Using computer to simulate the laser heat treatment process is beneficial to reducing the cost of experiment. Material model considering phase change and dependent on temperature was established by JMatPro software. The thermo-mechanical coupling model of laser heat treatment of the flange was established by using the Fourier heat transfer model and solid mechanics model. Dynamic temperature distribution, residual stress and deformation of workpiece during laser heat treatment were analyzed. The results show that the temperature at the front of the laser beam is lower than the temperature at the back of the field. With the laser heat source removing and heat transfer going on,the internal temperature of the flange plate is obviously higher than that of the external temperature, and flange surface stress begins to gradually uniform. The internal stress of the flange plate is larger and the edge stress is smaller.

关 键 词：计算机模拟 法兰盘 激光热处理 温度分布 

分 类 号：TG156.9[金属学及工艺—热处理]