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在重复频率ＹＡＧ激光加载下，研究了３０ＣｒＭｎＳｉＡ钢片分别处于空气自然对流和切向强迫气流环境中不同的温度响应．实验用红外热像仪对靶前表面的温度进行了实时诊断，结果表明，在激光作用下，靶材的温升与靶前表面的对流换热状况有较大的关系，当靶面存在马赫数为０．１左右的切向气流时，材料的温升曲线明显低于靶处于空气自然对流环境下的温升曲线，气流与靶面的对流换热使得材料的激光加工所需能量或功率增加．这与应用热边界层换热动力学理论得到的结论一致．
Under the repetition rate YAG laser loading, the different temperature responses of 30CrMnSiA steel sheets in air natural convection and tangential forced air flow were studied respectively. Experiments with the thermal imaging camera on the front surface of the real-time temperature diagnosis, the results show that the laser target, the target temperature and the front surface of the convection heat transfer conditions have a greater relationship, when the target surface Mach When the number is about 0.1, the temperature rise curve of the material is obviously lower than the temperature rise curve of the target in the air natural convection environment. The convection heat transfer between the air flow and the target surface makes the energy or power required for the laser processing of the material increase. This is consistent with the conclusion obtained from the theory of heat transfer kinetics of the thermal boundary layer.