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汽车车门内板冲压工艺方案及修边整形模设计
英文标题:Stamping process scheme and trimmingsizing die design of automobile door inner panel
作者:王海玲 陈世涛 崔礼春  
单位:安徽江淮汽车集团股份有限公司 
关键词:车门内板 冲压工艺 修边整形 开裂起皱 拉深成形 仿真模拟 
分类号:TG386
出版年,卷(期):页码:2019,44(1):92-97
摘要:

介绍了一种汽车车门内板冲压工艺方案,以及上模带双模腔特征、多压料芯结构的轿车车门内板修边整形模的应用,通过对车门内板冲压工艺及模具结构分析,采用拉深后先整形再周圈修边的工艺方案,并结合CAE仿真模拟分析进行产品结构及工艺模面优化,有效解决了成形开裂及起皱问题。在修边整形模中,采用内外双排侧销控制的内压料芯及左/右外压料芯结构,使待整形区域整形时两侧同时压料,整形时发生胀形及加工硬化,在产品形状实现的同时,也可促进产品周圈刚性的提升,减少回弹变形。实际生产证明,该冲压工艺方案有效可行,已实现大批量生产,车门内板单件精度、品质及包边总成效果都较好。

A stamping process scheme of automobile door inner panel was introduced, and the application of upper die with double-cavity characteristic and multi pressure core structure in trimmingsizing die of automobile door inner panel was also presented.Through the analysis on the stamping process and die structure of automobile door inner panel, the product structure and process die surface were optimized by adopting the process scheme of first shaping and then trimming after deep drawing combining with CAE simulation analysis, and the problems of cracking and wrinkling in the forming process were solved effectively. In the trimming-sizing die, the inner pressure core and the left/right outer pressure core structures controlled by the inner and outer double-row side pins were used to press the both sides of area to be shaped simultaneously, and the bulging and work hardening occurred during shaping. Therefore, while the shape of product was realized, the rigidity around the product was also promoted, and the springback was reduced. The actual production shows that the stamping process scheme is feasible and effective, and the mass production is realized. Furthermore, the accuracy, quality and edge covering assembly effect for the single automobile door inner panel are better.
 

基金项目:
国家科技重大专项(2014ZX04002041)
作者简介:
王海玲(1989-),女,学士,工程师,E-mail:wanghailing89@163.com
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