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利用有限元软件ABAQUS对激光熔覆成形的过程进行了数值仿真模拟,建立了激光熔覆成形温度场的传热数值仿真模型,并对仿真结果进行了分析。进行试验验证,预测结果与试验测量结果能较好的吻合,最大误差不超过8%,这表明所建温度场数值仿真模型合理。因此可用该数值仿真模型分析激光熔覆工艺参数对温度场的影响,以及模拟计算熔覆层的高度和重熔深度,从而为激光熔覆成形的应用提供了理论和技术支持。
The finite element software ABAQUS was used to simulate the laser cladding process. The heat transfer numerical simulation model of laser cladding temperature field was established and the simulation results were analyzed. The experimental results show that the predicted results are in good agreement with the experimental results and the maximum error is less than 8%. This shows that the numerical simulation model of temperature field is reasonable. Therefore, the numerical simulation model can be used to analyze the influence of laser cladding process parameters on the temperature field, as well as to simulate the height and remelting depth of the cladding layer, thus providing theoretical and technical support for the application of laser cladding.