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首页> 美国卫生研究院文献>Materials >Equivalent Properties of Transition Layer Based on Element Distribution in Laser Bending of 304 Stainless Steel/Q235 Carbon Steel Laminated Plate
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Equivalent Properties of Transition Layer Based on Element Distribution in Laser Bending of 304 Stainless Steel/Q235 Carbon Steel Laminated Plate

机译：304不锈钢/ Q235碳钢层合板激光弯曲中基于元素分布的过渡层等效性能

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摘要

Compared with the single-component metal plate, there is a special transition layer on the joint interface between two kinds of materials in the stainless steel-carbon steel laminated plate (SCLP). In order to describe the finite element model of laser bending accurately, it is of great significance to determine material properties of the transition layer. Based on the element distribution, an equivalent method is adopted to calculate thermal conductivity, thermal expansion coefficient, elastic modulus, density, Poisson’s ratio, and specific heat capacity of transition layer. The electron probe experiments show that the transition layer is formed by interfacial element diffusion with thickness of 7 μm. Besides, the volume fraction of stainless steel (46.63%) and carbon steel (53.37%) in the transition layer is tested by energy dispersive spectrometer, respectively. Through the equivalent method, a laser bending model of SCLP is simulated by ANSYS software to predict the bending angle under different parameters. The experimental verification shows that the maximum of bending angle errors is 3.74%, which is lower than the maximum 4.93% of errors calculated by the mean value method. The analysis verifies that the laser bending model is feasible and contributes to improving the accuracy of modeling SCLP in the laser bending process.
机译：与单组分金属板相比，不锈钢-碳钢层压板（SCLP）中两种材料之间的接合界面处有一个特殊的过渡层。为了准确描述激光弯曲的有限元模型，确定过渡层的材料特性具有重要意义。根据元素分布，采用等效方法计算过渡层的导热系数，热膨胀系数，弹性模量，密度，泊松比和比热容。电子探针实验表明，过渡层是通过界面元素扩散形成的，厚度为7μm。此外，用能谱仪分别测试了过渡层中不锈钢（46.63％）和碳钢（53.37％）的体积分数。通过等效方法，通过ANSYS软件模拟了SCLP的激光弯曲模型，以预测不同参数下的弯曲角度。实验验证表明，弯曲角误差的最大值为3.74％，低于平均值法计算的最大误差为4.93％。分析证明该激光弯曲模型是可行的，有助于提高在激光弯曲过程中SCLP建模的准确性。

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