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首页> 外文期刊>Journal of Mechanical Science and Technology >Modeling and computation of the three-roller bending process of steel sheets
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Modeling and computation of the three-roller bending process of steel sheets

机译：钢板三辊弯曲过程的建模与计算

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摘要

Sheet metal bending processes are some of the most commonly used industrial manufacturing operations. The development and optimization of these processes are time consuming and costly. Therefore, finite element simulations may aid the design and quality assurance of sheet metal products. In the present study, a commercial finite element package was used to analyze the three-roller bending of a steel sheet. A two-dimensional finite element model of this process was built under the ABAQUS/Explicit environment based on the solution of several key techniques, such as contact boundary condition treatment, material property definition, meshing technique, and so on. Maps with desired curvature radii were established by varying the distance between the two bottom rollers and the position of the upper one. The developed maps made the rolling process easier and less time consuming. An industrial experiment using optimized numerical results was carried out to validate the numerical model. Residual stress and equivalent plastic strain distributions were also studied. The numerical spring back phenomenon was compared with analytical results.
机译：钣金弯曲工艺是一些最常用的工业制造操作。这些过程的开发和优化既费时又费钱。因此，有限元模拟可以帮助钣金产品的设计和质量保证。在本研究中，使用商业有限元软件包来分析钢板的三辊弯曲。在ABAQUS / Explicit环境下，基于接触边界条件处理，材料特性定义，网格划分技术等几种关键技术的解决方案，建立了该过程的二维有限元模型。通过改变两个下罗拉之间的距离和上罗拉的位置，可以建立具有所需曲率半径的地图。所开发的地图使滚动过程更加轻松，并且耗时更少。利用优化的数值结果进行了工业实验，以验证数值模型。还研究了残余应力和等效塑性应变分布。将数值回弹现象与分析结果进行了比较。

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