Transactions of Materials and Heat Treatment

Title：Spinning process on symmetrical thickening of disk-like parts

Authors： Wang Wei Jin Junsong Wang Xinyun Deng Lei

Unit： Huazhong University of Science and Technology

KeyWords： spinning symmetrical thickening disklike parts with both thin web plates and thickened rims bending degree failure mode FE simulation

ClassificationCode：TG381

year,vol(issue):pagenumber：2017,42(10):73-80

Abstract：

A spinning process on symmetrical thickening of disklike parts with both thin web plates and thickened rims was studied, and its thickening mechanism was analyzed. Then, the finite element simulation scheme was designed by software Simufact.forming, and the forming process, forming load and failure mode were analyzed. Furthermore, the influences of parameters under thickening limit on the mold filling, blank bending and forming shape were investigated, and the variations of limit bending degree δmax versus inclination angle α and bottom height h values were given. Finally, the FE analysis results were verified by experiment. The results show that the forming process can be divided into three forming stages of the uniform thickening stage, the swing thickening stage and the final filling stage. However, in the second stage, two kinds of failure modes, including extrusion and folding, occur easily. Thus, in the limit forming, the filling ability of groove decreases with the increasing of inclination angle α and bottom height h, while the larger the γmax value is and the greater the opening degree of groove is, the greater the ultimate bending degree δmax is, and the forming shape can be judged by δmax.

Funds：

国家自然科学基金资助项目（51205144）

作者简介：王炜（1989-），男，硕士研究生，E-mail：wangweihust1989@163.com；通讯作者：金俊松（1980-），男，博士，副教授，E-mail：jsjin@hust.edu.cn

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