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利用ANSYS软件对激光钎焊过程温度场进行了有限元模拟,在分析过程中采用三维单元,并考虑了材料热物性的非线性特征,建立了有限元模型,得出了钎焊过程中,不同工艺参数下试样表面、截面的温度场分布图,并进行了温度测量和实际钎焊实验。结果表明,有限元分析温度曲线与实测温度曲线比较吻合,钎焊后金刚石与基体实现高强度连接,对钎焊过程选择工艺参数具有很大的指导意义。
The temperature field in the process of laser brazing was simulated by ANSYS software. The three-dimensional element was used in the analysis process, and the nonlinear characteristics of the material thermophysical properties were considered. The finite element model was established, Under the technological parameters, the temperature field distribution of the specimen surface and cross section was measured, and the temperature measurement and the actual brazing experiment were carried out. The results show that the temperature curve of the finite element analysis is in good agreement with the measured temperature curve, and the high strength connection between the diamond and the substrate after brazing has great guiding significance for the selection of process parameters in the brazing process.