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建立了激光表面快速熔凝条件下温度场的二维数值模型,并利用有限差分法对Cu-Mn合金在激光表面快速熔凝条件下的温度场进行了计算。计算结果表明该模型能准确描述激光表面快速凝固条件下熔池的温度场信息,而且在保证计算精度的条件下简化了计算(相对于三维)。计算结果与实验结果相吻合。
A two-dimensional numerical model of the temperature field under laser rapid solidification was established. The temperature field of the Cu-Mn alloy under the rapid laser melting condition was calculated by the finite difference method. The calculation results show that the model can accurately describe the temperature field of the molten pool under the rapid solidification condition of the laser surface, and simplify the calculation (with respect to the three-dimensional) under the condition of ensuring the accuracy of the calculation. The calculated results agree well with the experimental results.