Transactions of Materials and Heat Treatment

Title：Strong and weak blank holder control technology on deep drawing for stainless steel hyperbolic special-shaped skin

Authors： Bai Ying Guo Quanqing Jia Min Han Yanbin Li Huan Zhang Xin

Unit： AVIC Xi′an Aircraft Industry Group Co. Ltd.

KeyWords： deep drawing stainless steel bidirectional depression draw bead process supplement profile butt skin

ClassificationCode：TG386

year,vol(issue):pagenumber：2023,48(12):111-120

Abstract：

For the difficult deep drawing of special-shaped stainless steel skin with bidirectional depression, the influence dedgree of process addendum profile and structure design of draw bead on the material thickness were analyzed by finite element numerical simulation technology to solve the problems of accurate unfolding of blank, precise transition in the deep drawing, wrinkling control, crack protection and springback compensation, and the formulation of test plans for stainless steel butt skins was guided. Then, a design method for a closed drawn body with nearly rounded end and inclined flange was proposed, so that the hyperbolic parts with L-shaped open section were all surrounded by blank holder force. Furthermore, multiple sets of draw bead structural models were designed, and the three-stage unequal height conforming draw bead structure had the best control effect on the balanced material flow at the die opening which was verified by simulation. The experimental results show that when forming stainless steel special-shaped skins which are close to the ultimate height in one step, reasonable process model and draw bead structure can improve the deep drawing defects of complex structures, better control material thickening, and reduce the buckling deformation and springback of special-shaped skins.

Funds：

作者简介：白颖（1972-），女，学士，研究员高工 E-mail：baiyingsyh@163.com

Reference：

[1]付书山，孙广开，何彦霖，等.基于逆有限元的机翼蒙皮变形监测方法仿真研究 [J].航空制造技术，2022, 65 (6):107-114.

Fu S S, Sun G K, He Y L, et al. Simulation study on wing skin deformation monitoring based on inverse finite element method [J]. Aeronautical Manufacturing Technology, 2022, 65 (6):107-114.

[2]航空制造工程手册总编委会.航空制造工程手册飞机钣金工艺[M].北京:航空工业出版社，1992.

Editorial Committee of Aeronautical Manufacturing Technology Manual. Aeronautical Manufacturing Technology Manual-Sheet Metal Forming[M]. Beijing: Aviation Industry Press, 1992.

[3]孙刚，徐建军，白朋鹏，等. 汽车发罩外板冲压回弹补偿研究[J]. 锻压技术，2021，46(5)：64-71，168.

Sun G, Xu J J, Bai P P, et al. Springback compensation research of stamping for automobile hood outer plate[J]. Forging & Stamping Technology，2021,46(5):64-71，168.

[4]桂婉婷，孙玲，张民权，等.不同材料模型和测量方法对冲压回弹预测精度的影响[J]. 塑性工程学报，2021，28（3）：34-40.

Gui W T, S L, Zhang M Q, et al. Influence of different material models and measurement methods on stamping springback prediction accuracy[J]. Journal of Plasticity Engineering，2021，28（3）：34-40.

[5]闫华军，王波，张双杰，等.铝合金地板梁拉延成形回弹分析及补偿[J].塑性工程学报，2020，27（2）：21-28.

Yan H J，Wang B，Zhang S J, et al. Springback analysis and compensation of drawing of aluminum alloy floor beam[J]. Journal of Plasticity Engineering，2020，27（2）：21-28.

[6]李泷杲.金属板料成形——有限元模拟基础[M].北京: 北京航空航天大学出版社， 2008.

Li L G. Finite Element Simulation Base of Sheet Metal Forming[M]. Beijing: Beihang University Press, 2008.

[7]李晓军，门向南，毕四龙，等.航空变曲率内蒙皮零件精确成形参数优化[J].锻压技术，2022, 47(11): 116-122.

Li X J, Men X N, Bi S L, et al. Precision forming and parameter optimization for aircraft inner skin part with variable curvature [J]. Forging & Stamping Technology, 2022, 47(11): 116-122.

[8]吕志敏，江豪. 5052铝合金薄型封板冲压缺陷仿真分析[J]. 锻压技术，2022，47(9):99-104，181.

Lyu Z M, Jiang H. Simulation analysis on stamping defects for 5052 aluminum alloy thin sealing plate[J]. Forging & Stamping Technology,2022,47(9):99-104,181.

[9]任闯，潘远安，苏传义，等. 汽车侧围外板冲压缺陷的数值模拟及改进措施[J]. 锻压技术，2022，47(5):103-109.

Ren C, Pan Y A, Su C Y, et al. Numerical simulation and improvement measures on stamping defects for automobile side-frame outer panel[J]. Forging & Stamping Technology,2022,47(5):103-109.

[10]韩龙帅，王刚，郑学斌，等.基于Autoform的门内板冲压仿真分析[J].塑性工程学报，2021，28（4）：82-88.

Han L S，Wang G，Zheng X B，et al. Simulation analysis of door inner panel stamping based on Autoform[J].Journal of Plasticity Engineering，2021，28（4）：82-88.

[11]中国锻压协会.航空航天钣金冲压件制造技术[M].北京：机械工业出版社，2013.

Confederation of Chinese Metalforming Industry. Manufacturing Technologies for Aerospace and Aviation Metal Stamping Parts [M]. Beijing: China Machine Press, 2013.

[12]翟平，林兆荣.飞机钣金成形原理与工艺[M].西安：西北工业大学出版社，2014.

Zhai P, Lin Z R. Stamping Process & Die Design[M]. Xi′an: Northwestern Polytechnical University Press, 2014.

[13]白颖，钟李欣，王永兴，等.一种双曲双向凹陷不锈钢对接蒙皮的拉深成形方法[P]. 中国：CN116329383A, 2023-06-27.

Bai Y, Zhong L X，Wang Y X, et al. Drawing forming method for hyperbolic bidirectional sunken stainless steel butt-joint skin[P]. China:CN116329383A,2023-06-27.

[14]白颖，钟李欣，范子翠，等. A286薄壁大径双曲排气半管拼焊拉深工艺探索[J].塑性工程学报，2021,28（9）：65-72.

Bai Y，Zhong L X，Fan Z C，et al. Exploration of tailor welding and deep drawing process of A286 thin-walled large diameter hyperbolic exhaust pipe [J].Journal of Plasticity and Engineering，2021,28（9）：65-72.

[15]杨程，陈林，彭迎娇，等.台阶盒形件起皱和开裂改善[J]. 精密成形工程，2022, 14(6): 141-147.

Yang C，Chen L，Peng Y J，et al. Improvement of wrinkling and cracking for stepped box parts[J]. Journal of Netshape Forming Engineering，2022,14(6): 141-147.

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