汽车前门内板起皱分析与优化  

Analysis and optimization on wrinkling defects of automobile front door inner panel

作　　者：唐浩兴 洪杰伟 温彤[3] TANG Hao-xing;HONG Jie-wei;WEN Tong(School of Advanced Manufacturing Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Chongqing Changan Automobile Co.,Ltd.,Chongqing 400023,China;College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China)

机构地区：[1]重庆邮电大学先进制造工程学院,重庆400065 [2]重庆长安汽车股份有限公司,重庆400023 [3]重庆大学材料科学与工程学院,重庆400044

出　　处：《模具工业》2022年第12期31-37,共7页Die & Mould Industry

摘　　要：以某车型前门内板为例,首先根据标准拉伸试验测试了材料的基本力学性能,并利用开孔方板对角拉伸方法以及开孔矩形板单轴拉伸试验对比了板材的抗皱性;其次分析了起皱点的应力类型,明确不同的起皱机理;最后依托实际生产工艺,优化拉深筋布局与尺寸,得到成形质量较高的产品。Taking the front door inner panel of a car as an example,the mechanical properties of the materials were tested according to the standard tensile test firstly,the wrinkle resistance was comparatively tested by using the perforated Yoshida buckling test and rectangular plate under uni⁃axial tension.Secondly,the stress types at wrinkling positions and the mechanism were analyzed.Finally,based on the actual production process,the layout and size of draw beads were optimized to obtain a product with high forming quality.

关 键 词：汽车门板 方板对角拉伸 起皱 应力 拉深筋 

分 类 号：TG306[金属学及工艺—金属压力加工]