氧碘化学激光辐照纯铝的温度场数值模拟  

Numerical Simulation of Molten Pool Temperature Field of Pure Aluminum by Chemical Oxygen-Iodine Laser

作　　者：刘振东[1] 陈文武[1] 李剑锋[2] 孙建军[1] 桑凤亭[3] 李国卿[1] 

机构地区：[1]大连理工大学三束材料改性国家重点实验室,辽宁大连116024 [2]大连交通大学,辽宁大连116028 [3]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《激光与光电子学进展》2008年第9期47-51,共5页Laser & Optoelectronics Progress

摘　　要：氧碘化学激光(COIL)(波长1.315mm)辐照纯铝表面,激光束斑直径为6mm,功率密度为10～20kW/cm2,材料表面在激光能量作用下瞬间发生熔化。以傅里叶热传导模型为基础,利用ANSYS对化学激光与铝相互作用的过程进行模拟,得到了熔池的形貌特征及相关的温度时间关系曲线。对不同功率密度激光作用的模拟结果进行分析,并求解了纯铝熔化破坏的激光功率阈值。Aluminum surface is radiated by chemical oxygen-iodine laser （COIL）with beam diameter of 6 mm, wavelength of 1.315 μm and power density of 10-20 kW/cm^2, and melts for transient laser energy deposition. Numerical simulation about the interaction of chemical laser and aluminum is done with ANSYS based on Fourier thermal conduction mode, and the relationship between characteristics and temperature field is obtained. The simulation result with different power laser density is discussed, and the laser power threshold density for aluminum is calculated.

关 键 词：激光 ANSYS 温度场 铝 数值模拟 

分 类 号：TN248[电子电信—物理电子学]