拉深筋对板料成形回弹影响研究  

Study on the effect of reinforcement rib on the springback of sheet metal forming

作　　者：李军[1] 王晓枫[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《模具工业》2014年第12期20-24,共5页Die & Mould Industry

摘　　要：利用Dynaform软件,对某车型右前侧车门铰链加强板三维模型进行数值模拟,重点对板料成形质量中不等截面拉深筋的影响进行分析,通过改变不等截面拉深筋的拉深阻力来改善板料的成形质量,得出合理的拉深筋参数。根据不等截面拉深筋阻力的大小和分布情况,通过拉深阻力模型来对拉深筋几何参数反求,获得不等截面拉深筋的实际分布情况。比较不同拉深阻力的回弹结果,得出最有效的控制回弹的方法是不等截面拉深筋。The numerical simulation was made on the 3D model of a front right door hinge reinforcing plate by Dynaform; and the analysis was in particular on the effects of nonuni？form cross section of reinforcement rib on the sheet metal forming quality. The sheet met？al forming quality was improved by changing the reinforcement rib resistance and the opti？mized reinforcement rib parameters. The actual distribution situation of nonuniform cross section of reinforcement rib was achieved according to the value and distribution situation of the reinforcement rib resistance and through reverse engineering the reinforcement rib geometric parameters based on the drawing resistance model. By comparing different draw？ing resistance of springback results, it was concluded that the best method to control the springback is nonuniform cross section of reinforcement rib.

关 键 词：铰链加强板 拉深筋 几何参数 成形 回弹 

分 类 号：TG386[金属学及工艺—金属压力加工] O242.21[理学—计算数学]