Transactions of Materials and Heat Treatment

Title：Optimization on rolling process parameters for rib stiffened plates based on respond surface method

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ClassificationCode：TG306

year,vol(issue):pagenumber：2019,44(8):35-40

Abstract：

Based on physical experiment and numerical simulation, the rolling of highribbed ribs was studied, and the influence factors of deformation were analyzed. Then, the parameters of forming process were optimized. For the typical problems of filling dissatisfaction of forming process and height inconsistency of transverse and longitudinal ribs, friction factor m, outer fillet radius r and roller diameter d were used as the optimized variables, and the respond surface optimization model of process parameters for rolling of high ribstiffened plates was established. Then, the heights of transverse and longitudinal ribs and the difference between them were used as the objective functions, and the relevant variables were optimized. The results show that the most important influences on the heights of transverse and longitudinal ribs are m and d, followed by r, and the most important influence on the height difference of transverse and longitudinal ribs is d. Therefore, the optimal solution combination is friction factor of 0.8, outer fillet radius of 0.92 mm and roll diameter of Φ349 mm, which can increase the heights of transverse and longitudinal ribs by more than 50% before optimization and decrease the difference between them by 52%. Thus, the forming effect is improved greatly.

Funds：

重庆市基础研究与前沿探索专项项目（cstc2018 jcyjAX0159）

作者简介：胡金（1993-），女，硕士研究生 E-mail：hujintongxue1993@163.com 通讯作者：温彤（1968-），男，博士，教授 E-mail：wentong@cqu.edu.cn

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