根据已知的喷射沉积成形沉积体内的凝固模型，对典型的Al-Cu合金进行了计算分析．结果表明，工艺参数（如沉积速率和沉积时雾化锥的温度）和材料的热物性（如界面换热系数）对沉积体内的凝固过程有明显影响．在沉积热力学条件（沉积前雾化锥的热力学状态）相同的情况下，沉积表面的温度随工艺参数和材料热物性发生显著变化． According to the known solidification model of spray deposition depositional body, the typical Al-Cu alloy was calculated and analyzed. The results show that the process parameters (such as deposition rate and the temperature of the atomization cone during deposition) and the thermophysical properties of the material (such as the interfacial heat transfer coefficient) have a significant influence on the solidification process in the sediments. Under the same deposition thermodynamic conditions (the thermodynamic state of the atomizing cone before deposition), the temperature of the deposition surface changes significantly with process parameters and material thermophysical properties.