汽车地板零件拉延工艺参数优化及实验验证  

Optimization and Experimental Verification of Drawing Process Parameters for Automotive Floor Part

作　　者：支姝[1] 衣玉兰[1] ZHI Shu;YI Yulan(College of Automotive Engineering, Xinjiang Vocational ＆ Technical College of Communications, Wulumuqi 831401, China)

机构地区：[1]新疆交通职业技术学院汽车工程学院,新疆乌鲁木齐831401

出　　处：《铸造技术》2018年第5期1059-1061,共3页Foundry Technology

基　　金：新疆维吾尔自治区高校科研计划项目(XJEDU2015S070)

摘　　要：以某汽车地板零件为研究对象,对其进行工法设计,然后借助板料成形有限元软件Auto Form建立该零件的拉延成形过程的有限元模型。通过初步的数值模拟,该零件容易出现局部拉裂缺陷,通过分析选择板料的尺寸和压边力作为优化变量,借助Sigma模块优化汽车地板零件的拉延成形工艺参数,确定最优的工艺参数值。结果表明,优化后的板料X向尺寸、板料Y向尺寸、压边力分别为1 320 mm、982 mm和6.75×10~5N。试模验证得到的零件无缺陷,和数值模拟结果一致。The addendum and binder surface of the automotive floor parts were designed according to the initial parts, and the finite element model of deep drawing process were established by using finite element software AutoForm. Through preliminary numerical simulation, the crack was the main defects for the part. The size of the blank and blank holder force were taken as the optimization parameters. The Sigma module was used to optimize the drawing forming process parameters and to determine the optimal process parameters. The results show that the optimized X direction blank size, Y direction blank size, and blank holder force are 1 320 mm, 982 mm, and 6.75×10 5 N, respectively. The tryout part hasn＇t any defects, and it is in consistence with the numerical simulation results.

关 键 词：有限元 缺陷 优化设计 成形参数 

分 类 号：TG376[金属学及工艺—金属压力加工]