锻压技术

首道次压下率对不锈钢热轧复合板界面结合性的影响

英文标题：Influence of first reduction ratio on the interfacial bonding properties of composite plate of hot rolled stainless steel

作者：王浩程晓茹付松岳王煜兰昆邱俊

单位：武汉科技大学

关键词：不锈钢复合板有限元首道次压下率最大垂直压应力界面结合率

分类号：

出版年,卷(期):页码：2016,41(4):19-24

摘要：

应用ABAQUS模拟了1200 ℃条件下的316L不锈钢/Q235碳钢复合板的首道次轧制过程，以最大垂直压应力与硬金属的平面变形抗力的比值作为复合板结合性的判断依据，得到了不同压下率的界面结合率。与实验数据对比发现，在相同的压下率情况下模拟的界面结合率略高。为了消除模拟结果与实验结果之间的差异，使有限元模型更接近于实验，用模拟数据和实验数据对判别式的比值进行修正，并得到比值为1.03975。修正后所得到的界面结合率更接近于实验结果；实验结果也验证了有限元模型的正确性和模拟过程中判断依据的可行性；此外，得到了界面结合率随首道次压下率的增加基本呈指数型增加的规律。

The first pass rolling process of stainless steel 316L and carbon steel Q235 composite plate at 1200 ℃ was simulated by software ABAQUS. The ratio between the maximum vertical compressive stress and the plane deformation resistance of hard metal was used to evaluate the bonding properties of the composite plate, and the rates of the interfacial bond with different pressures were obtained. Compared with the experimental data, the simulated results of the interfacial bond are a little higher under the same compression rate. In order to eliminate the difference between the simulated results and the experimental results to make the simulated results closer to the experimental results, the ratio of the discriminant was amended to 1.03975 based on both the simulated data and experimental data. The interface bonding ratio was closer to experimental results after amendment. The validity of the finite element model and the feasibility of the evaluation in the simulation process were verified by the experimental results. In addition, the interface binding rate increased exponentially with the increase of the first reduction rate.

基金项目：

国家自然科学基金面上项目(51274154) ；武汉科技大学研究生创新创业基金资助项目（JCX0054）

王浩（1988-），男，硕士研究生

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