锻压技术

QP980超高强钢A柱补强板冲压成形性能分析

英文标题：Analysis of stamping performance of A-pillar reinforcement plate for QP980 ultra-high strength steel

作者：裴永生张世哲孟宁

分类号：TG302

出版年,卷(期):页码：2020,45(12):28-33

摘要：

为了实现汽车的轻量化，汽车钣金件中开始使用超高强钢。基于QP980超高强钢，从A柱补强板入手，分析其冲压成形性能。根据A柱内部补强板创建UG模型，然后，设计冲压成形工序、进行冲压工艺分析，参考最大减薄率、起皱准则和回弹量3个标准，判断冲压成形质量，并与DP780高强钢进行对比。利用有限元模拟分析得出：在1200 kN压边力的作用下,应用QP980超高强钢的A柱补强板的最大减薄率达到要求范围，但是，起皱以及回弹量较大；并且，3种情况下均比DP780高强钢差。在3种不同压边力下,对QP980超高强钢进行冲压工序试验，试验结果表明，QP980超高强钢的冲压成形性能与压边力有较大关系。

In order to reduce the weight of automobiles, ultra-high-strength steels has been used in automotive sheet metal parts. Based on QP980 ultra-high-strength steel, the A-pillar reinforcement plate is used to analyze its stamping performance. The UG model was created according to the A-pillar internal reinforcement plate. Next, the stamping process was designed, and the stamping process analysis was carried out. Furthermore, referring to the three standards of the maximum thinning rate, wrinkling criterion and springback amount, the quality of stamping was judged and compared with the situation of DP780 high-strength steel. Using finite element simulation analysis, it is concluded that the maximum thinning rate of the A-pillar reinforcement plate for QP980 ultra-high-strength steel under the action of blank holder force of 1200 kN reaches the standard range, but the wrinkle and springback are larger，and the three standard conditions are worse than DP780 high-strength steel. Then, the QP980 ultra-high strength steel was tested by stamping process under three different blank holder forces, and the test results were inspected. The test results show that the stamping performance of QP980 ultra-high strength steel has a great relationship with the blank holder force.

基金项目：

河北省自然科学基金资助项目(E2015203002)；秦皇岛市科学技术研究与发展计划项目(201701B039)

裴永生(1973-)，男，博士，副教授 E-mail：39568353@qqcom 通讯作者: 张世哲(1996-)，男，硕士研究生 E-mail: zhshzh0109@163com

参考文献：

［1］段少勇. 浅谈汽车车身结构轻量化
［J］. 科技视界, 2012, (30):155-156.

Duan S Y. Talking about the lightweight structure of automobile body
［J］. Science & Technology Vision, 2012, (30): 155-156.

［2］王利, 钟勇, 陆匠心. 宝钢先进高强钢近期开发和应用进展
［N］. 世界金属导报,2017-01-03(B10).

Wang L, Zhong Y, Lu J X. Recent development and application of Baosteel advanced high strength steel
［N］. World Metals Herald, 2017-01-03 (B10).

［3］高翔, 范体强, 赵清江, 等. 基于有限元分析的高强钢B柱零件的应用研究
［J］. 汽车工艺与材料, 2014, (9): 10-14.

Gao X, Fan T Q, Zhao Q J, et al. Application research of high strength steel B-pillar parts based on finite element analysis
［J］. Automobile Technology & Material, 2014, (9): 10-14

［4］牛超，陈新平，崔振祥. 基于Autoform和Dynaform软件的超高强钢零件仿真对比
［J］. 精密成形工程，2017, 9(6)：53-56.

Niu C, Chen X P, Cui Z X. Comparison of forming simulation for UHSS part based on Autoform and Dynaform
［J］. Journal of Netshape Forming Engineering，2017, 9(6)：53-56.

［5］王刚. 厚壁超高强钢U型件热冲压成形工艺模拟研究
［D］. 长春: 吉林大学, 2014.

Wang G. Simulation Study on Hot Stamping Process of Thick Wall Ultra High Strength Steel U-Shaped Parts
［D］. Changchun: Jilin University, 2014.

［6］刘亚楠. DP980超高强钢B柱内部加强板冲压成形数值模拟研究
［D］.长春：吉林大学,2017.

Liu Y N. Research on Stamping Forming Numerical Simulation of Ultr-high Strength Steel DP980 B-Pillar Internal Reinforcement Plate
［D］. Changchun: Jilin University, 2017.

［7］崔振祥,杨丹.超高强钢前纵梁零件冲压开裂分析与处理
［J］.精密成形工程,2017,9(6):32-36.

Cui Z X, Yang D. Analysis and treatment of stamping cracking of front longitudinal of ultra-high strength steel
［J］. Journal of Netshape Forming Engineering, 2017,9(6):32-36.

［8］Nakamachi E, Sowerby R. Finite element modeling of the punch stretching of square plates
［J］. Int. J. of Applied Mechanics, ASME, 1988, 55: 667-671.

［9］马鸣图. 先进汽车用钢
［M］. 北京: 化学工业出版社, 2008.

Ma M T. Advanced Automotive Steel
［M］. Beijing: Chemical Industry Press, 2008.

［10］欧阳可居, 刘永超, 王德财, 等. 高强钢板在商用车轻量化车厢上的应用
［J］. 金属加工:热处理，2010, (21): 47-48.

Ouyang K J, Liu Y C, Wang D C, et al. Application of high strength steel plate in lightweight cars of commercial vehicles
［J］. MW Metal Forming, 2010, (21): 47-48.

［11］郭驿. 拉延筋对拉深成形及回弹影响的关键技术研究
［D］. 合肥: 合肥工业大学, 2017.

Guo Y. The Technical Research of the Effect of Drawbead on the Drawing Forming and Springback
［D］. Hefei: Hefei University of Technology, 2017.

［12］Zhang D J, Cui Z S, Chen Z Y. An analytical model for predicting sheet springback after V-bending
［J］. Journal of Zhejiang University Science A, 2007, 8(2): 237-244.

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