光子学报, 2009, 38 (6): 1327, 网络出版: 2010-05-10
选区激光烧结瞬态温度场模拟与测试方法研究
Simulation and Test of Transient Temperature of Selective Laser Sintering
选区激光烧结 有限元 瞬态温度 动态模拟 红外热成像 Selective laser sintering Finite element method Transient temperature Dynamic simulation Infrared thermo image
摘要
采用有限元方法，考虑实际的边界条件和热物性参量的变化，对Al2O3覆膜陶瓷粉末的选区激光烧结过程瞬态三维温度场进行动态模拟.通过比色测温法对红外热成像系统的发射系数进行修正后，对选区激光烧结过程瞬态温度场进行测试.数值模拟和实测结果显示，两者吻合较好.
Abstract
3D transient temperature field of the selective laser sintering of Al2O3 tectorial ceramic powder was calculated real-timely according to finite element method based on the practical boundary condition and thermo physical parameters variation.The transient temperature was also tested using infrared thermo camera which its emission coefficient was corrected according to double-wavelength temperature measurement method.The result shows that the simulation agrees well with test result.
邢键, 孙晓刚, 高益庆. 选区激光烧结瞬态温度场模拟与测试方法研究[J]. 光子学报, 2009, 38(6): 1327. XING Jian, SUN Xiao-gang, GAO Yi-qing. Simulation and Test of Transient Temperature of Selective Laser Sintering[J]. ACTA PHOTONICA SINICA, 2009, 38(6): 1327.
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