混合拉延筋对DP780覆盖件成形回弹影响研究  

The Research on The Effect of Mixed Drawbeads on Deformation and Springback of DP780 Automobile Panels

作　　者：李路[1] 程振邦[1] 王晓枫[2] 

机构地区：[1]皖西学院机械与电子工程学院,安徽六安237012 [2]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《哈尔滨理工大学学报》2016年第3期91-95,共5页Journal of Harbin University of Science and Technology

基　　金：皖西学院校级自然科学项目(WXZQ1408);合肥工业大学马鞍山高新技术研究院与马钢合作资助项目(11Z0201025)

摘　　要：在DP780覆盖件成形工艺中,引入一种混合拉延筋新工艺,并以安全带上固定板为例,利用Dynaform软件,对其进行拉延、切边和回弹的过程进行仿真模拟.通过对不同拉延条件下的仿真结果进行分析比较,得出混合拉延筋对覆盖件成形回弹的影响规律.结果表明:混合拉延筋新工艺可以有效控制冲压件各部分材料流动的不均匀性,使之有效部位得到充分变形,提高零件的成形质量;还可以非常有效的控制冲压件的回弹,为制定合理的冲压工艺方案提供设计依据.In the forming process of DP780 automobile panels, a new technoloy of mixed drawbeads is pro- posed. Using the safety belt fixed plate as an example, the drawing, cutting edge and springback was simulated by Dyanform. Through the analysis and comparison of simulation results under different drawing conditions. We obtain mixed drawdeads effect on deformation and springback of automobile panels. The conclusion：Mixed drawbeads not only effectively control the non-uniformity of material flow in each part of the stamping parts, makes full deformation of the effective part and improves the forming quality of the part, but also can be very effective in controlling springback of the stamping parts and provides design parameters for establishing reasonable forming techniques.

关 键 词：混合拉延筋 覆盖件 成形质量 仿真模拟 回弹 

分 类 号：TG386.32[金属学及工艺—金属压力加工]