Transactions of Materials and Heat Treatment

Title：Design and analysis on stamping process of car power battery fixed bracket based on CAE

Authors： Liu Wen Cao Hangchang Shi Yixuan Liu Feiran Li Haipeng

Unit： Hebei University of Technology

KeyWords： power battery fixed bracket cold stamping CAE drawing blank-holder farce

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2017,42(9):35-41

Abstract：

The car power battery fixed bracket process was designed and analyzed based on CAE software (Dynaform), and the contents of stamping process plan were determined as blanking, drawing and trimming-piecing by a 3D digital model of CAD software (UG) with considerations of the material, structure features, precision and quality requirements. With a focus on the simulation of process design and parameters of drawing process by software Dynaform, the influences of blank-holder force, lubrication condition and drawbead parameters on the forming quality were obtained according to the forming limit diagram of simulative results. Under the conditions of blank-holder force 700 kN, liquid lubricant (friction coefficient 0.05), drawbead height 7 mm, drawbead width 11 mm, fillet radius 4 mm and slot flange radius 3 mm, the defects such as wrinkling, cracking and insufficient deformation are avoided, and the forming quality of the product is ensured.

Funds：

河北省科技支撑计划项目(13211027)；国家级大学生创新创业训练计划项目(201710080024)

作者简介：刘雯（1996-），女，本科，助理工程师 E-mail：1554691498@qq.com 通讯作者：李海鹏（1977-），男，博士，教授 E-mail:lhpcx@163.com

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