坯料厚度与压边力交互作用的回弹影响因素的CAE分析  

The CAE Analysis of the Factors Influencing the Springback of the Interaction between Blank Thickness and Holder Force

作　　者：罗孝侃[1] 王广丰[1] 辛贺义[1] 

机构地区：[1]徐州师范大学机电工程学院,江苏徐州221116

出　　处：《徐州工程学院学报（自然科学版）》2010年第2期11-14,共4页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：江苏省高校自然科学研究计划资助项目(07KJB460113)

摘　　要：以某灯罩零件为研究对象,以动力显式有限元软件Dynaform为平台,研究了坯料厚度与压边力之间的交互作用,并以正交试验为手段,进一步研究了这种交互作用、虚拟冲压速度、积分点数、模具间隙、坯料厚度、压边力对回弹的影响.研究结果表明:坯料厚度与压边力之间的交互作用对回弹的影响相当显著;基于CAE分析的回弹预测,模拟参数对回弹预测的影响不可忽视;回弹是多因素耦合的结果,适当的参数组合能够在很大程度上减小冲压件的回弹量.The paper, taking a lampshade component for the study and the dynamic explicit finite element software Dynaform as the platform, makes a study on the interaction between blank thickness and the blank holder force. And with the adoption of the orthogonal experiment, the paper makes a further study on the influences on the springback from the interaction, virtual ramming speed, integral points, die gap, blank thickness, and blank holder force. The results show that： the interaction between blank thickness and the blank holder force has a remarkable impact on the springback; As for the springback prediction based on the CAE, the influence of the simulation parameters on the precision of the prediction can not be ignored; Springback is the result of coupling factors, a good combination of parameters can reduce the springback to a great degree.

关 键 词：坯料厚度 压边力 交互作用 回弹 

分 类 号：TG302[金属学及工艺—金属压力加工]