Transactions of Materials and Heat Treatment

Title：Rolling law of ring with bosses on outer wall

Authors：

Unit：

KeyWords：

ClassificationCode：TG306

year,vol(issue):pagenumber：2023,48(1):144-149

Abstract：

A new forming process method for ring with bosses on outer wall was proposed, and the continuous forming of ring was realized, which not only completed the diameter expansion of ring, but also formed a high-quality bosses on the outer wall of ring. Then, the rolling finite element model of ring with bosses on outer wall was established by finite element simulation software ABAQUS, and the rolling process was analyzed. Furthermore, the evolution laws of geometry, equivalent strain, boss height and rolling force during the rolling process was explored, and the feasibility of forming was verified by experiments. The results show that the forming process can be divided into two stages of diameter enlargement stage and boss growing stage. The deformation in diameter enlargement stage is similar to ring rolling, and the deformation in boss growing stage is similar to extrusion. The rolling force required in the boss growing stage is much larger than that in the diameter enlargement stage, and it is related to the feeding amount. However, the cross-sectional area of boss has great influence on the boss height, but the boss shap has little influence on the boss height.

Funds：

国家自然科学基金资助项目(51975439)

作者简介: 兰　箭(1972-), 男, 博士, 教授 E-mail: jlan@ whut. edu. cn

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