基于Dynaform的汽车覆盖件冲压成型数值模拟及优化  

Numerical Simulation and Optimization of Automobile Panel based on Dynaform

作　　者：熊保玉[1] 

机构地区：[1]四川信息职业技术学院机电工程系,四川广元628017

出　　处：《新技术新工艺》2015年第10期90-93,共4页New Technology & New Process

基　　金：广元市科技支撑计划项目(14KJZCZC006)

摘　　要：应用数值模拟技术对汽车覆盖件成型规律进行研究逐渐受到重视。以汽车左、右后轮罩内板为研究对象,介绍了应用Dynaform软件对轮罩冲压成型进行数值模拟的步骤。通过模拟产品在设置不同压边力数值及有、无拉延筋情况下的成型性能,预测板料成型中可能出现的如起皱、拉裂、变薄和回弹等缺陷问题。通过模拟结果的比较分析确定,汽车左、右后轮罩内板成型工艺过程和技术参数中压边力的大小和有、无拉延筋设置对产品影响较大,为实际产品冲压成型提供了科学依据。It has gradually been paid more attention to study forming law for automobile panel by applying numerical simulation. Left and right inner plates on automobile rear wheels are investigated, the stamping process of auto rear wheel is simulated based on Dynaform software. Simulation of stamping forming by changing magnitude of blank holder force and setting drawbead, predicting wrinkle, fracture, thinning, rebound and other defects is done. Blank holding force and draw- bead of process and technical parameters of left and right inner plates on automobile rear wheels are determined by compa- ring the simulation results, and it provides a scientific basis for the practical products shaping.

关 键 词：数值模拟 压边力 拉延筋 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]