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采用非致冷焦面红外热像仪研究、测量了镁合金AZ31钨极氩弧焊的焊接温度场,并通过红外测温数据对焊接温度场数学模型的计算参量进行了校正.在此前提下,利用数值模拟方法弥补了弧光干扰区域的温度场缺失,得到了整体焊接温度场.温度场分析结果为焊后微观组织状态研究提供了分析基础.
The non-cooled focal plane thermal imaging camera was used to study the welding temperature field of the AZ31 TIG welding of magnesium alloy, and the calculation parameters of the mathematical model of the welding temperature field were corrected by infrared temperature measurement data. , The numerical simulation method is used to make up for the temperature field loss in the area of arc interference, and the overall welding temperature field is obtained.The results of temperature field analysis provide the basis for the study of microstructure after welding.