激光强化温度场的数值模拟与校验  

Simulation and verification of the temperature field in laser hardening

作　　者：王秀凤[1] 吕晓东[1] 陈光南[2] 胡世光[1] 

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100083 [2]中国科学院力学研究所,北京100080

出　　处：《激光技术》2004年第2期162-165,共4页Laser Technology

基　　金：国家自然科学基金资助项目 (5 9836 2 2 0 );航空基础科学基金资助项目 (98H5 1110 )

摘　　要：采用MSC .Marc非线性有限元软件 ,对激光强化过程中的温度场进行数值模拟 ,分析了能量密度的变化对激光强化效果的影响。通过温度传感器测量激光强化时材料表面温度的变化来验证数值模拟的结果。模拟值与实测值基本吻合。结果表明 。Temperature field in the laser hardening process is numerically simulated by MSC.Marc software.The influence of the change of energy density on laser hardening effect is analyzed.Simulation result is verified through the thermocouple temperature transducer measuring the surface temperature of material under the laser irradiation.Experimental curves of temperature versus time are in agreement with simulation results.The simulation results can be regarded as a basis for choosing laser technological parameters.

关 键 词：激光强化 温度场 数值模拟 强化效果 

分 类 号：TG156.99[金属学及工艺—热处理] TN249[金属学及工艺—金属学]