锻压技术

基于AutoForm的轿车行李箱内板成形工艺优化

英文标题：Forming process optimization for inner panel of car trunk lid based on AutoForm

作者：肖良红罗慧娜向俊仲龙涛

单位：湘潭大学

分类号：TG385

出版年,卷(期):页码：2014,39(6):60-64

摘要：

以汽车覆盖件行李箱内板为研究对象，利用AutoForm有限元分析软件对其拉深成形工艺进行工艺分析。研究发现，压料面上有起皱风险，零件（1/2坯料）中间部位有3处存在开裂风险。通过采用在靠近坯料开裂边缘处开缺口，将明显开裂的两处凹模圆角半径14和3 mm分别增大到18和4.5 mm，将压边力由500 kN减少到400 kN等措施进行工艺优化。优化结果表明，压料面上起皱风险明显减小。按优化后的成形工艺进行内板零件拉深成形，所生产出的内板零件无起皱、开裂缺陷，与数值模拟结果一致，验证了数值模拟的正确性。

Taking the inner panel of car trunk lid as the object of study,the drawing process of inner panel of car trunk lid was numerically simulated using the finite element analysis software of AutoForm. The simulation results show that there are wrinkling risks on the binder surfaces, and three cracking risks occur in the middle of part (Half of a blank). After some process optimization measures were taken, such as cutting notches in the blank edge near cracks, increasing the die radius of two obvious cracking positions respectively from 14 mm and 3 mm to 18 mm and 4.5 mm and decreasing the blank holding force from 500 kN to 400 kN, the simulation results show that the wrinkling risks on binder surfaces are reduced. The production practice shows that no defects of wrinkling and cracking exist in the inner panel of car trunk lid produced with the optimized process to draw inner panel parts, which is agreement with the numerical results, and the correctness of numerical simulation is sufficiently verified.

基金项目：

国家自然科学基金资助项目（51175445）；湘潭大学博士启动基金（12QDZ17）

参考文献：

［1］崔令江. 汽车覆盖件冲压成形技术[M]. 北京：机械工业出版社, 2003.Cui Lingjiang. Auto Panel Stamping Technology [M]. Beijing: China Machine Press, 2003.
［2］Tang S C, Chappuis L B. Evaluation of sheet metal forming process design by simple models[J]．Journal Materials in Manufacturing, ASME, 1988, 8: 19-26.
［3］Balun T, Tang S C, Chappuis L B, et a1．Application of mechanical methods to evaluation of forming and process design [J]. SAE Trans. of Materials & Manufacturing, 1993, 21（5）: 727-733.
［4］胡轶敏，张卫刚，林忠钦，等. 轿车覆盖件成型过程动态仿真有限元建模技术研究[J]. 汽车技术,1999, （2）: 26-29.Hu Yimin, Zhang Weigang, Lin Zhongqin, et al. Panel of car forming process dynamic simulation finite element modeling technology [J]. Automobile Technology, 1999,（2）: 26-29.
［5］罗亚军，杨建华，何丹农，等. 车身覆盖件冲压仿真的有限元建模技术[J]. 计算机辅助工程,2001, 10（1）: 31-35. Luo Yajun, Yang Jianhua, He Dannong, et al. Finite element modeling technology of automobile body panel stamping simulation[J]. Computer Aided Engineering, 2001, 10（1）:31-35.
［6］聂昕，成艾国，申丹凤，等. 汽车右侧围内板的成形分析及其在工程上的应用[J]. 锻压技术,2006, 31(2): 73-77.Nie Xin, Cheng Aiguo, Shen Danfeng, et al. Stamping formability analyses and application in engineering of automobile right side-frame inner panel[J]. Forging & Stamping Technology, 2006, 31(2): 73-77.
［7］赵迎祥，李飞舟. 基于AutoForm的轿车引擎盖板冲压成形仿真的研究[J]. 机械设计与制造,2010,(11): 94-95.Zhao Yingxiang, Li Feizhou. Research of the stamping form simulation for hood outer panel based on AutoForm [J]. Machinery Design & Manufacture, 2010, (11): 94-95.
［8］齐振杰，夏琴香，戚春晓，等. 不同应变路径下高强度钢板料成形数值模拟分析[J]. 锻压技术,2013, 38(1): 35-39.Qi Zhenjie, Xia Qinxiang, Qi Chunxiao, et al. Numerical simulation of high strength steel sheet metal forming in different strain paths[J]. Forging & Stamping Technology, 2013, 38(1): 35-39.
［9］刑忠文，方华松，徐伟力. 汽车B柱成形仿真与分析[J]. 锻压技术,2008,33（2）：27-30.Xing Zhongwen, Fang Huasong, Xu Weili. Simulation and formability analysis of drawing process for car B-pillar [J]. Forging & Stamping Technology, 2008, 33(2): 27-30.
［10］刘细芬，胡义华，黄华艳. 数值模拟技术在汽车覆盖件拉延模具设计中的应用[J]. 热加工工艺,2011,40(13): 178-184. Liu Xifen, Hu Yihua, Huang Huayan. Application of numerical simulation technology in design of drawing die for auto panel [J]. Hot Working Technology, 2011, 40(13): 178-184.

服务与反馈：

【文章下载】【加入收藏】