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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.

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