利用ANSYS 有限元中的“生死单元”技术，在基板修复区和近修复区施加不同预热温度，模拟分析激光沉积修复过程温度场的影响规律；利用感应加热装置对TA15 基板进行不同距离、不同基板厚度以及不同感应加热器形状的加热实验，并采用红外热像仪实时测量采集基板上表面温度，分析了不同加热参数对基板温度场分布的影响规律，为激光沉积修复过程中预置基体表面温度场的实时调控提供依据。

Using the birth-and-death elements of ANSYS, the temperature field during laser deposition repair is studied while different preheating temperatures are applied to the substrate forming area and near forming area. The temperature field of TA15 titanium alloy substrate is studied at different heating distances, substrate thicknesses and shapes of the induction heater through adopting induction heating device, and the real-time temperature data of substrate is recorded with the infrared thermal imager during the heating process. The effect of different induction heating parameters on the substrate temperature field is researched. It is beneficial to real-time control of preset temperature field during laser deposition repair process.