为测定同步送粉式激光熔覆过程温度场分布情况,需采用ANSYS软件对温度场进行数值模拟计算.建立了同步送粉式激光熔覆过程的数学模型与有限元模型,通过ANSYS软件得到了温度场数值模拟计算结果.针对激光熔覆过程中的拉应力消除与裂纹控制等问题,提出了双面熔覆的预热方法,并通过ANSYS数值模拟的方法确定了最佳翻转时间.通过模拟结果与实验结果对比了双面熔覆方法的优越性.双面熔覆方法可为同步送粉式激光熔覆的预热处理提供了行之有效的方法.%ANSYS software is needed for numerical simulation of temperature field to determination the temperature field distribution of synchronous powder feeding laser cladding. The mathematical model and finite element model of synchronous powder feeding laser cladding was established,and the temperature field numerical simulation result was obtained by ANSYS software. Aiming at the problems of tensile stress relieving and crack control in the process of laser cladding,two-sided cladding method was proposed,and the best turnover time was confirmed through the ANSYS numerical simulation method. The superiority was contrasted through the simulation results and the experimental results.Two-sided cladding method can provide an effective method for preheating treatment of synchronous powder feeding laser cladding.
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