等曲率异向弯边零件自适应定位液压成形技术探究  

Investigation of adaptive positioning hydroforming technology for isocurvature anisotropic curved edge plates

作　　者：乔锋敏 白颖 李奎 刘姣姣 QIAO Fengmin;BAI Ying;LI Kui;LIU Jiaojiao(AVIC Xi'an Aircraft Industry Group Company Ltd.,Xi'an 710089,China)

机构地区：[1]中航西安飞机工业集团股份有限公司,陕西西安710089

出　　处：《模具工业》2023年第12期38-44,共7页Die & Mould Industry

摘　　要：针对等曲率异向弯边框板类零件探索1种“一模多件自适应定位”的橡皮液压成形方案,可实现在1副模具中同时成形相互对称的2个钣金框板类零件的不同异向弯边,减少了模具数量,提高了成形效率。借用CATIA及PAM-STAMP有限元分析软件对方案中的参数进行优化,胎体高度尺寸确定为40 mm,使6 mm加强小弯边可以一次液压到位,将模具与零件的定位方式更改为圆孔与长圆孔配合使用、盖板圆形销钉帽躲避凹槽与半球形带帽台阶销配合定位,由此可以提高定位、卸件效率,提升零件一次成形质量。It investigation explored a"one mould with multi-part adaptive positioning"solution for the rubber hydroforming for anisotropic curved edge plates of equal curvature.The solution en⁃abled to simultaneous forming two symmetrical sheet metal plate parts with different curved edges in opposite directions in a mould,which reduced the number of mould and increased the forming efficiency.Furthermore,using CATIA and PAM-STAMP finite element analysis software to opti⁃mize the parameters,the body height was set at 40 mm,allowing the 6 mm reinforced small bend to be hydraulically applied in one pass.The positioning of the mould and the part was changed to a combination of round and oblong holes,round pin cap dodging nests and hemispherical step pins with caps,which improved the efficiency of positioning and unloading the part,and the quality of the product in a single forming.

关 键 词：等曲率异向弯边 一模多件 有限元分析 橡皮液压成形 

分 类 号：TG376.4[金属学及工艺—金属压力加工]