锻压技术

汽车前梁后部零件全工序成形回弹仿真及模面补偿研究

英文标题：Research on whole process forming springback simulation and die surface compensation for rear part of automobile front member

作者：段磊夏磊李庆宝白帆张洋

单位：天津职业技术师范大学天津众诚楷模科技有限公司

关键词：高强钢板全工序回弹预测模面补偿拉延

分类号：TG386

出版年,卷(期):页码：2020,45(8):62-69

摘要：

高强钢板作为汽车用钢的主要材料，在冲压成形过程中易出现破裂、起皱和回弹等缺陷。以宝钢CR380LA高强钢板汽车前梁后部零件为研究对象，分析了零件的材料和结构特点，确定了零件的冲压工艺方案为落料拉延修边、侧冲孔、翻边整形、侧整形；利用Autoform软件，研究了零件的全工序成形回弹仿真，并预测了零件成形后的回弹量；根据回弹预测结果，采用折入补偿设计策略对零件两侧壁的拉延模面进行了回弹几何补偿。模面补偿后的回弹模拟及实际生产检测结果表明，零件的回弹减小了80%，且得到了有效地控制。零件的全工序成形回弹仿真及模面补偿是正确合理的，保证了零件的成形质量和尺寸精度，为同类零件的成形工艺设计和回弹模面补偿提供了有益的指导。

As the main material of automobile steel, the high strength steel plate is prone to crack, wrinkle and springback in the process of stamping. For an automobile front member rear part of CR380LA high strength steel plate produced by Baosteel, the materials and structural characteristics of parts were analyzed, and the stamping process scheme was determined as blanking, drawing, trimming+side piercing+flanging, shaping+side shaping. Then, the simulation of springback in the whole process of parts was studied by software Autoform, and the springback after part forming was predicted. According to the springback prediction results, the springback geometric compensation of drawing die surface on both side walls of part was achieved by the fold-in compensation design strategy. The results of simulation for springback after the die surface compensation and the actual production test show that the springback of part is decreased by 80% and controlled effectively, and the simulation of springback in the whole process and the die surface compensation of part are correct and reasonable to guarantee the forming quality and the dimension precision of part, which provides useful guidance for the forming process design and the die surface compensation of springback for the similar parts.

基金项目：

天津市津南区科技计划项目（201805002）；天津市教育委员会优秀青年教师资助计划项目（RC14-16）；天津职业技术师范大学科研发展基金项目（KJ15-01）；天津市大学生创新创业训练计划资助项目（202010066076）

段磊（1980-），男，硕士，副教授，E-mail：tutedl213@tute.edu.cn；通讯作者：夏磊（1996-），男，本科生，E-mail：x2019zc@163.com

参考文献：

[1]范振雨. 基于AutoForm的尾灯安装板冲压成形工艺研究 [D]. 大连：大连理工大学, 2016.
Fan Z Y. Research on Stamping Process of the Mounting Plate for Tail Lights Based on AutoForm [D]. Dalian: Dalian University of Technology, 2016.
[2]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.
[3]宋开跃. 汽车中地板加强板全工序冲压成形数值模拟[D]. 长春：吉林大学, 2016.
Song K Y. Numerical Simulation of Complete Stamping Process for Center Floor Panel Reinforcement of Automobile [D]. Changchun: Jilin University, 2016.
[4]徐晓, 王二冬, 夏琴香, 等. 某汽车底梁加固件冲压成形全工序数值模拟分析 [J]. 现代制造工程, 2017, (8): 57-62.
Xu X, Wang E D, Xia Q X, et al. Numerical simulation analysis of complete stamping process for stiffener part of automotive beam [J]. Modern Manufacturing Engineering, 2017, (8): 57-62.
[5]葛泽培, 陈炜, 李国强, 等. 车门防撞梁全工序仿真模拟及回弹补偿研究 [J]. 锻压技术, 2018, 43 (8): 44-48.
Ge Z P, Chen W, Li G Q, et al. Research on whole process simulation and springback compensation for vehicle door anti-collision beam[J]. Forging & Stamping Technology, 2018, 43 (8): 44-48.
[6]李贵, 崔赛赛, 陈志平, 等. 先进高强钢DP1000地板中央通道的成形回弹及补偿研究 [J]. 材料科学与工艺, 2018, 26 (2):15-20.
Li G, Cui S S, Chen Z P, et al. The forming springback and compensation of floor panel tunnel of advanced high strength steel DP1000 [J]. Materials Science and Technology, 2018, 26 (2): 15-20.
[7]常桂静, 曾兵华, 江明洁, 等. 纵梁前段全工序回弹预测与控制 [J]. 精密成形工程, 2015, 7 (4): 37-41.
Chang G J, Zeng B H, Jiang M J, et al. Springback prediction and control in the whole process of front longitudinal beam [J]. Journal of Netshape Forming Engineering, 2015, 7 (4): 37-41.
[8]李钦生, 徐亮, 陆勤强, 等. 多工位全工序连续冲压工艺仿真与实验 [J]. 锻压技术, 2019, 44 (9): 40-45.
Li Q S, Xu L, Lu Q Q, et al. Simulation and experiment of multi-position and complete process continuous stamping process [J]. Forging & Stamping Technology, 2019, 44 (9): 40-45.
[9]张俊停, 李扬, 史雷鸣. 某车型后地板零件基于AutoForm的全工序模拟[J]. 兵器材料科学与工程, 2015, 38 (5): 64-66.
Zhang J T, Li Y, Shi L M. Full cycle simulation of automobile rear floor part based on AutoForm [J]. Ordnance Material Science and Engineering, 2015, 38 (5): 64-66.
[10]李英, 焦洪宇, 杨兰玉. 汽车横梁全工序冲压成形仿真分析 [J]. 机械设计与制造, 2015, (9): 251-253.
Li Y, Jiao H Y, Yang L Y. Simulated analysis of complete stamping process for automobile cross member [J]. Machinery Design & Manufacture, 2015, (9): 251-253.
[11]刘龙. 汽车覆盖件冲压成形回弹补偿方法研究 [D]. 长沙：湖南大学, 2018.
Liu L. Research on the Springback Compensation Method for Automobile Panel Stamping [D]. Changsha: Hunan University, 2018.
[12]孔敏, 胡伟, 莫健华, 等. 基于AutoForm的高强钢板成形件回弹分析与补偿收敛性研究 [J]. 锻压技术, 2019, 44 (9): 172-179.
Kong M, Hu W, Mo J H, et al. Springback analysis and compensation convergence research on formed parts of high strength steel plate based on AutoForm [J]. Forging & Stamping Technology, 2019, 44 (9): 172-179.

服务与反馈：

【文章下载】【加入收藏】