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对激光弯曲变形机理问题进行了探讨,提出了激光弯曲的变形机理本质上是温度梯度机理,反向弯曲机理和增厚机理是当材料厚度方向的温度梯度很小时,针对不同厚度的材料而出现的现象.实验发现有限厚度材料在激光辐照作用下,其内部产生了用经典傅里叶定律无法解释的非常规温度分布,将其定义为泛傅里叶效应,用于进一步揭示激光弯曲机理的实质.
The mechanism of laser bending deformation is discussed. The deformation mechanism of laser bending is essentially the temperature gradient mechanism. The mechanism of reverse bending and the mechanism of thickening are that when the temperature gradient in the thickness direction of the material is very small, it appears for different thickness materials The experimental results show that under the laser irradiation, the finite thickness material has an unconventional temperature distribution that can not be explained by the classical Fourier law, which is defined as the Pan-Fourier effect to further reveal the laser bending mechanism The essence.