锻压技术

汽车前保险杠防撞梁拉深成形过程仿真分析

英文标题：Simulation of drawing process of anti-collision beam for vehicle front bumper

作者：邵瑞影逯振国钟佩思

关键词：汽车前保险杠防撞梁拉深仿真

分类号：TG386.1

出版年,卷(期):页码：2014,39(6):41-44

摘要：

针对汽车前保险杠防撞梁在拉深成形过程中可能存在的起皱、拉裂等缺陷，采用Dynaform软件对其成形过程进行有限元仿真分析。根据仿真结果对防撞梁零件的成形极限、成形厚度变化和应力应变状态进行研究，并将仿真分析结果与实际成形零件进行对比，特别对零件变形较大部位的厚度变化进行详细分析对比，可以看出模拟结果与实际变形基本保持一致，研究表明，采用仿真分析可以避免防撞梁在拉深成形中的起皱和拉裂缺陷,提高产品质量，极大地降低生产成本，缩短模具制造周期。

Aiming at the possible wrinkles or cracks during the forming process of anti-collision beam of vehicle front bumper, the finite element simulation of process was carried out based on Dynaform. The forming limit, thickness change and stress and strain state of anti-collision beam of vehicle front bumper were studied according to the simulation results, and the comparison of simulation results and actual forming parts was made. A comparative analysis of thinning rate in some large deformation area of parts was carried out especially, and a consistency between simulation results and actual deformaction was achieved. The results show that simulation analysis can aovid the wrinkling and cracking defects,improve the forming quality effectively,reduce the production costs, shorten the manufacturing cycle of mold design, and improve the level of design and production.

基金项目：

山东省自然科学基金资助项目（ZR2011EEM014）

参考文献：

［1］郭怡晖，马鸣图，张宜生，等. 汽车前防撞梁的热冲压成形数值模拟与试验[J]. 锻压技术, 2013, 38(3):46-50.Guo Yihui, Ma Mingtu, Zhang Yisheng, et al. Numerical simulation and experiment of hot stamping for front bumper of automobile[J]. Forging & Stamping Technology, 2013, 38(3):46-50.
［2］汪祥支，苏超，周锐，等. 汽车保险杠拉深成形数值分析与工艺优化[J]. 锻压技术, 2008, 33(1):45-46.Wang Xiangzhi, Su Chao, Zhou Rui, et al. Numerical value analysis and process optimization of auto-bumper deep drawing process[J]. Forging & Stamping Technology, 2008, 33(1):45-46.
［3］许建民，易际明，赵军. 基于数值模拟的高强度保险杠支架成形工艺分析[J]. 热加工工艺, 2011, 40(21):77-79.Xu Jianmin, Yi Jiming, Zhao Jun. Analysis on forming process of high strength steel bumper bracket based on numerical simulation [J]. Hot Working Technology, 2011, 40(21):77-79.
［4］薛松，周杰. 前保险杠加强板回弹分析及工艺控制[J]. 热加工工艺, 2011, 40(3):76-78.Xue Song, Zhou Jie. Springback and process control of front bumper reinforced board [J]. Hot Working Technology, 2011, 40(3):76-78.
［5］王乾廷，马立安. 汽车前保险杠防撞梁本体拉深成形压边力计算[J]. 锻压装备与制造技术, 2008,43(5):74-76.Wang Qianting, Ma Lian. Blank holder pressure calculation for the drawing processing of anti-collision beam of vehicle front bumper [J]. China Metal Forming Equipment & Manufacturing Technology, 2008, 43(5):74-76.
［6］吴诗惇. 冲压工艺及模具设计[M]. 西安：西北工业大学出版社, 2002.Wu Shichun. Sheet Metal Forming Technology and Mold Design [M]. Xi'an: Northwestern Polytechnical University Press, 2002.

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