锻压技术

车身零件拉延成形缺陷控制和工艺参数优化

英文标题：Defect control and process parameters optimization on drawing process of automotive panel

作者：支姝衣玉兰

单位：新疆交通职业技术学院

关键词：拉延成形缺陷拉延筋阻力系数压边力 AutoForm Design-Expert

分类号：TG386.1

出版年,卷(期):页码：2017,42(4):39-42

摘要：

起皱和拉裂缺陷是汽车车身零件在拉延成形中常见的成形缺陷。为了控制拉延成形缺陷，以某汽车发动机盖内板件为研究对象，通过Autoform建立有限元模型，并借助Design-Expert进行实验设计。采用数值模拟软件和实验设计方法对汽车发动机盖内板件的拉延筋阻力系数和压边力参数进行优化。优化后的最优参数组合为：拉延筋的阻力系数大小分别为A=0.3，B=0.3，C=0.4，压边力大小D=1.25×103 kN。采用优化后的参数进行实验，实验得到零件无拉裂和起皱缺陷，表明本文采用的方法可以有效地控制车身零件拉延成形中的缺陷。

Crackle and wrinkle are the common defects in the drawing process of automotive panel parts. In order to control the defects in the drawing process, for an automotive engine cover panel, the finite element model was set up by Autoform software, and the experimental design was carried out by Design-Expert software. The resistance coefficient of drawbeads and parameters of blank holder force for automotive engine cover panel were optimized by the numerical simulation software and the experiment design method. The optimized parameters are as following: the resistance coefficient of drawbeads are A=0.3, B=0.3, C=0.4, and the blank holder force is D=1.25×103 kN. Furthermore, the optimized parameters were verified in test, and the forming parts were obtained without crackle and wrinkle defects. Thus, this method can effectively control the forming defects in the drawing process of automotive panel parts.

基金项目：

新疆维吾尔自治区高校科研计划项目（XJEDU2015S070）

支姝（1982-），女，硕士，讲师 E-mail：zhishuxjjt@163.com

参考文献：

[1]Kawka M, Olejnik L, Rosochowski A, et al. Simulation of wrinkling in sheet metal forming[J]. Journal of Materials Processing Technology, 2001, 109(3): 283-289.

[2]肖红波，蔡浩华. 汽车前翼子板冲压成形工艺优化[J]. 锻压技术，2016，41（2）：35-38.

Xiao H B，Cai H H. Improvement of stamping process for car front fender [J]. Forging & Stamping Technology，2016，41（2）：35-38.

[3]Oujebbour F Z, Habbal A, Ellaia R. Optimization of stamping process parameters to predict and reduce springback and failure criterion[J]. Structural and Multidisciplinary Optimization, 2015, 51(2): 495-514.

[4]柯桂颜，路平，石婧，等. 拉延筋、压边力对冲压件成形性能的影响研究[J]. 锻压技术，2016，41（5）：39-43.

Ke G Y，Lu P，Shi J，et al. Influences of drawbead and blank holder force on formability of stampings [J]. Forging & Stamping Technology，2016，41（5）：39-43.

[5]沙海, 胡建华 ,罗昱, 等. 轮罩外板的冲压数值模拟与拉延筋优化[J]. 锻压装备与制造技术, 2016, 51(4): 81-84.

Sha H, Hu J H, Luo Y, et al. Stamping numerical simulation and drawbead optimization for outer panel of wheel cover[J]. China Metal Forming Equipment & Manufacturing Technology, 2016, 51(4): 81-84.

[6]覃柏英，秦文东，林贤坤，等.响应面法在发动机隔热罩冲压成形工艺参数优化中的应用[J]. 锻压技术，2016，41（3）：22-28.

Qin B Y，Qin W D，Lin X K，et al. Application of response surface method to optimize process parameters in engine heat shield forming [J]. Forging & Stamping Technology，2016，41（3）：22-28.

[7]何婷，程万军，王峥，等. 汽车侧围内补板拉深成形数值模拟分析[J]. 模具工业, 2013,39(3): 24-28.

He T，Cheng W J，Wang Z，et al. Numerical simulation of drawing process for automobile side-frame inner panel [J]. Die & Mould Industry, 2013,39 (3): 24-28.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】