锻压技术

外壁带凸台环件轧制成形规律

英文标题：Rolling law of ring with bosses on outer wall

关键词：环件轧制几何形状等效应变凸台高度轧制力

分类号：TG306

出版年,卷(期):页码：2023,48(1):144-149

摘要：

提出了一种外壁带凸台环件的新成形工艺方法, 该方法实现了环件的连续成形, 既能完成环件的扩径, 还能在环件的外壁上成形高质量的凸台。利用ABAQUS 有限元模拟软件, 建立了外壁带凸台环件轧制成形有限元模型, 并分析了轧制成形过程, 探究了轧制过程中几何形状、等效应变、凸台高度、轧制力的演变规律, 并通过试验验证了成形的可行性。结果表明:成形过程分为扩径阶段与凸台长大阶段, 扩径阶段的形变与环件轧制相似, 凸台长大阶段的形变与挤压相似; 凸台长大阶段所需的轧制力远远大于扩径阶段, 并且与进给量相关; 凸台截面积对凸台高度的影响较大, 而凸台形状对凸台高度几乎没有影响。

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.

基金项目：

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

参考文献：

[1] 　华林, 黄兴高, 朱春东. 环件轧制理论和技术[M]. 北京:机械工业出版社, 2001.

Hua L, Huang X G, Zhu C D. Ring Rolling Theory and Technology [M]. Beijing: China Machine Press, 2001.

[2] 　齐会萍, 李永堂, 华林. 环形零件辗扩成形工艺研究现状与发展趋势[J]. 机械工程学报, 2014, 50 (14): 75-80.

Qi H P, Li Y T, Hua L, et al. Research status and developing trends on the rolling forming process of ring part [J]. Journal of Mechanical Engineering, 2014, 50 (14): 75-80.

[3] 　黄天佑. 材料加工工艺[M]. 北京: 清华大学出版社, 2004.

Huang T Y. Material Processing Technology [M]. Beijing: Tsinghua University Press, 2004.

[4] 　Hua L, Qian D S, Pan L B. Deformation behaviors and conditions in L-section profile cold ring rolling [J]. Journal of Materials Processing Technology, 2009, 209: 5087-96.

[5] 　Quagliato L, Berti G A, Kim D, et al. Slip line model for forces estimation in the radial-axial ring rolling process [J]. International Journal of Mechanical Sciences, 2018, 138-139: 17-33.

[6] 　Guo L, Yang H. Towards a steady forming condition for radial-axial ring rolling [J]. International Journal of Mechanical Sciences，2011, 53: 286-99.

[7] 　Moon H K, Lee M C, Joun M S. Predicting polygonal-shaped defects during hot ring rolling using a rigid-viscoplastic finite element method [J]. International Journal of Mechanical Sciences, 2008,50: 306-14.

[8] 　龚小涛, 杨帆. 驱动辊转速对环件轧制工艺影响规律研究[J]. 轻合金加工技术, 2012, 40 (5): 47-52.

Gong X T, Yang F. Effect of driving roll rotation speed on rolling process of ring [J]. Light Alloy Fabrication Technology, 2012,40 (5): 47-52.

[9] 　马君慧, 吴运新, 龚海, 等. 基于响应面法的异形截面环件轧制宏观成形缺陷的分析与优化[J]. 锻压技术, 2022, 47(9): 135-144.

Ma J H, Wu Y X, Gong H, et al. Analysis and optimization on acroscopic forming defect for profiled section ring rolling based on response surface method [J]. Forging & Stamping Technology, 2022, 47 (9): 135-144.

[10] 王志军, 付建华, 齐会萍. 异形环件多步辗扩模拟[J]. 精密成形工程, 2016, 8 (6): 15-20.

Wang Z J, Fu J H, Qi H P, et al. Multi-step simulation of expanding exhibition profiled ring [J]. Netshape Forming Engineering,2016, 8 (6): 15-20.

[11] 于华民, 董方, 吴运新, 等. 大型铝合金C 形截面环轧制过程数值模拟和轧制区成形规律分析[J]. 锻压技术, 2021,46 (11): 197-206.

Yu H M, Dong F, Wu Y X, et al. Numerical simulation on rolling process and analysis on rolling zone forming law for large aluminum alloy C-shaped cross-section ring [J]. Forging & Stamping Technology,2021, 46 (11): 197-206.

[12] 杨智皓, 路晓辉, 兰箭, 等. 环件轧制多尺度数值模拟研究进展[J]. 塑性工程学报, 2022, 29 (3): 1-12.

Yang Z H, Lu X H, Lan J, et al. Research progress in multiscale numberical simulation of ring rolling [J]. Journal of Mechanical Engineering, 2022, 29 (3): 1-12.

[13] Han X, Hua L, Zhou G, et al. FE simulation and experimental research on cylindrical ring rolling [J]. Journal of Materials Processing Technology, 2014, 214: 1245-58.

[14] Han X, Hua L, Zhou G, et al. An innovative eccentric ring rolling method for fabricating eccentric rings [J]. International Journal of Mechanical Sciences, 2017, 120: 120-35.

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