Transactions of Materials and Heat Treatment

Title：Numerical simulation and optimization on three-roll bending based on thick plate

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ClassificationCode：TG306

year,vol(issue):pagenumber：2022,47(1):56-62

Abstract：

Roll bending is widely used in industrial manufacturing due to its simple structure and high processing efficiency. Therefore, the forming principle of three-roll bending technology was first introduced, and then the relationship between forming radius and upper roll reduction amount was deduced with the help of geometric model. Then, the workpiece with a circular cross-section formed by three-roll bending was numerically simulated by finite element analysis software ABAQUS, and the stress distribution and the forming radius for sheet metal in the forming process were analyzed. In view of the unavoidable springback phenomenon in the sheet metal forming process, in order to improve the processing accuracy of roll bending, the process parameters of upper roll reduction amount were adjusted, and the influence laws of the optimized process parameters on the forming radius of workpiece were analyzed. After selecting the optimal parameters, the verified tests were conducted finally. The results show that increasing the upper roll reduction amount in single pass roll bending is helpful to compensate the springback and improve the dimensional accuracy of workpiece, and the test results fit well with simulation results.

Funds：

2019随州市新能源、轻量化、智能化关键核心技术研发项目（随科发[2019]9号）

作者简介：石磊（1994-），男，硕士 E-mail：SL617618@whut.edu.cn 通信作者：朱春东（1963-），男，硕士，博士生导师 E-mail：zcdzcd6252@sina.com

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