本文在实验与分析的基础上,建立了表面组装激光低温钎焊接合部温度场数值计算模型,考虑了钎料的热物理性质变化、激光的实际能量分布和在钎焊材料表面的反射损失以及表面散热对热过程的影响,试验验证了该模型的正确性。 Based on the experiments and analysis, the numerical model of the temperature field of the surface-mount laser low-temperature brazed joints was established. The changes of the thermal physical properties of the brazing filler metal, the actual energy distribution of the laser and the reflection loss on the surface of the brazed material were considered Surface heat dissipation on the thermal process, the test verified the correctness of the model.