锻压技术

汽车背门口左右角板的冲压成形分析

英文标题：Analysis on the forming for back door angle plate of car

作者：郭晶赵广东

单位：本钢产品研究院

分类号：

出版年,卷(期):页码：2016,41(7):23-26

摘要：

结合BUP板料成形试验机和ARAMIS三维光学材料应变测量系统，测量DC53D的成形极限曲线，通过试验得出DC53D成形极限最低点应变值为36.4%。利用网格应变分析技术对汽车部件背门口左右角板进行冲压成形分析，得到冲压件的主应变最大值31.2%，最大厚度减薄25%，以及特征截面线上的主应变变化曲线。同时将冲压件的主应变与DC53D的成形极限曲线对比分析发现：汽车部件背门口左右角板的大部分变形为拉延变形；冲压板料DC53D具有良好的冲压成形性能；冲压件对应成形极限曲线最低点的主应变为24.3%，网格应变分析结果可以作为成形件失效分析和模具调试与修整的依据。

Combined with BUP sheet metal forming machine and ARAMIS 3D optical material strain measurement system, the DC53D forming limit curve was measured, and the lowest strain of DC53D forming limit is 36.4% by experiment. Then, the stamping of back door angle plate was analyzed by the grid strain analysis technique with the maximum major strain 31.2% and the maximum thickness thinning 25%, and major strain variation curve on the section line was obtained as well. Contrasting the major strain of the stamping part with the forming limit curve of DC53D, it is found that the most serious deformation of automobile parts is drawing deformation in the back angle plate around the door. Therefore, stamping sheet DC53D is of good forming performance. The stamping part major strain at the lowest point of the forming limit curve is 24.3%. Furthermore, the analysis results of grid strain provide the basis for the failure analysis of the forming part, and the adjustment and modification of the die.

基金项目：

郭晶（1986-），女，硕士，工程师

参考文献：

[1]康永林. 现代汽车板的质量控制与成形性 [M]. 北京：冶金工业出版社，1999.

Kang Y L, The Quality Control and Formability of Modern Automobile Plate[M]. Beijing: Metallurgical Industry Press,1999.

[2]蒋浩民，陈新平，李川海.大型车车身覆盖件冲压成形特征分析及选材研究 [J].金属成形工艺，2003,21(3):50-52.

Jiang H M，Chen X P，Li C H. Stamping feature analysis and material selection of large-size auto panel[J]. Metal Forming Technology，2003，21(3):50-52.

[3]龙安，陈寅，祝洪川，轿车侧围零件冲压开裂网格应变分析[J].热加工工艺，2013，42(13):211-213.

Long A，Chen Y，Zhu H C. Grid strain analysis on cracking of car body side in stamping[J].Hot Working Technology，2013，42(13): 211-213.

[4]逯若东，梅杰，陈新平，等.基于CGA网格法分析避免车门内板成形中暗伤缺陷的产生[J].模具工业，2015，41(4)：36-39.

Lu R D，Mei J，Chen X P,et al. Analysis to avoid the hidden flaw in forming inner door panel based on cga grid method[J]. Die & Mould Industry,2015,41(4):36-39.

[5]GB/T 24171—2009, 薄板和薄带成形极限曲线的测定[S].

GB/T 24171—2009, The determination of sheet and strip forming limit curve[S].

[6]GB/T 228.1—2010, 金属材料拉伸试验第一部分：室温试验方法[S].

GB/T 228.1—2010, Metallic materials-tensile testing—Part 1:Method of test at room emperatures[S].

[7]刘振勇, 李亚光, 李大永. 5754-H111铝合金板材成形极限实验及数值模拟[J]. 锻压技术，2014，39（1）：35-40.

Liu Zhenyong，Li Yaguang，Li Dayong. Forming limit experiment and numerical simulation of 5754-H111 aluminum alloy sheet [J]. Forging & Stamping Technology，2014，39（1）：35-40.

[8]刘宝胜，吴为.TNW700钛合金热成形极限试验研究[J]. 锻压技术，2015，40（10）：20-23.

Liu Baosheng，Wu Wei.Experimental research on thermal forming limit of TNW700 [J]. Forging & Stamping Technology，2015，40（10）：20-23.

服务与反馈：

【文章下载】【加入收藏】