锻压技术

支架钣金件成形受力分析与工艺模拟

英文标题：Stress analysis and process simulation of support stamping part in forming

作者：袁小江

单位：无锡科技职业学院

关键词：支架钣金件冲压弯曲拉深压边力

分类号：TG386

出版年,卷(期):页码：2017,42(7):19-23

摘要：

在金属塑性变形应用研究的基础上，以支架钣金零件为载体，进行冲压成形工艺分析，针对支架钣金件的结构特点，弯曲工艺采用零件垂直方向的110°角与90°角同时进行弯曲成形，由于支架钣金件渐变式R圆角与多角度弯曲的结构特点，弯曲工艺模拟结果出现较严重的材料叠加起皱现象。故采用拉深成形工艺，通过切向压应力与拉应力的计算分析，根据压边力计算值的范围，在35～49 kN之间取8个值进行模拟拉深实验，在45 kN压边力模拟时得到较为理想的拉深压力曲线，从而得到了较好的拉深工艺结果，支架钣金件没有出现材料的起皱与开裂现象。根据模拟分析相关参数设计制造的模具，拉深成形工序一次性试模出合格的样件。

For thin walled support stamping parts, on the basis of applied research about metal-plastic deformation, its stamping process was analyzed, and support stamping parts with vertical angle of 110° and 90° were bent based on their structural features respectively. However, they appeared wrinkle heavily in the bending simulation due to their structural features with gradient fillet R and multi-angle bending. Therefore, the drawing process was applied. Based on computational analysis of pressure stress and tensile stress, and the range of blank holder force calculation values within 35-49 kN, eight drawing experiments were carried out by simulation, and the ideal curve of drawing pressure was obtained with 45 kN blank holder force. Thus, the good drawing result was acquired without wrinkle and crack. According to the related parameters of simulation analysis, the dies are designed and manufactured, and the above drawing process can produce the qualified parts.

基金项目：

国家自然科学基金资助项目（51575236）

作者简介：袁小江（1977-），男，硕士，副教授，E-mail：xiaojyuan@163.com

参考文献：

[1]苗量，赵涛，崔礼春. 汽车尾灯支架成形的工艺设计与模拟分析[J]. 合肥工业大学学报: 自然科学版,2007,30(12)：124-127.

Miao L, Zhao T, Cui L C. Technnological design and numerical simulation on forming process of taillight supporter of car[J]. Journal of Hefei University of Technology: Natural Science Edition, 2007, 30(12)：124-127.

[2] 余彦永，罗仁平，董湘怀，等.板料流经拉深筋厚度减薄的研究 [J]. 塑性工程学报, 2016，23(5)：47-51.

Yu Y Y，Luo R P，Dong X H，et al. Study on thinning of sheet metal flowing through the drawbead [J]. Journal of Plasticity Engineering , 2016，23(5)：47-51.

[3] 李英，焦洪宇，杨玉兰. 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 Y L. Simulated analysis of complete stamping process for automobile cross member[J]. Machinery Design and Manufacture, 2015, (9)：251-253.

[4]柯桂颜，路评，石倩，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 Q，et al. Influences of drawbead and blank holder force on formability of stampings [J]. Forging & Stamping Technology，2016，41（5）：39-43.

[5]成虹，江秉华. 基于CAE的某加强件冲压成形工艺分析与方案的确定[J]. 机械设计与制造, 2007，(10)：130-132.

Cheng H, Jiang B H. The stamping process design of a strengthening panel based on CAE[J]. Machinery Design and Manufacture, 2007，(10)：130-132.

[6]肖旭东，王永军，张纪春, 等. 金属板料点压渐进成形实验与模拟研究[J].机械工程学报, 2013，49(8)：107-113.

Xiao X D, Wang Y J, Zhang J C, et al. Experiment and simulation on sheet metal incrementally pressing forming [J]. Chinese Journal of Mechanical Engineering, 2013，49(8)：107-113.

[7] 陈炜，周宏超，徐雪来，等. 盒形件变压边力拉伸成形研究 [J]. 锻压技术, 2014，39(11)：20-23.

Chen W，Zhou H C，Xu X L，et al. Research on variable blank holder force deep drawing for rectangular box parts [J]. Forging & Stamping Technology，2014, 39(11)：20-23.

[8] 关意鹏.汽车顶盖天窗侧整形模设计[J]. 锻压技术，2015，40（1）：90-93.

Guan Y P. Design of side sizing die for the skylight in automobile roof panel [J]. Forging & Stamping Technology，2015，40（1）：90-93.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】