成形辊齿数对蜂窝半格结构件成形影响研究  

Effect of the Teeth Number of Forming Rolls on the Foil Forming of Honeycomb Half-cell Structure

作　　者：梅明[1,2] 傅志红[1] 罗昌杰[2] 于文泽[2] 

机构地区：[1]中南大学机电工程学院,长沙410083 [2]中国科学院深圳先进技术研究院,深圳518055

出　　处：《机械科学与技术》2014年第4期605-609,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：广东省产学研项目(2011A09010019)资助

摘　　要：高强度金属蜂窝芯的制备方法是将金属箔材滚压成为蜂窝半格结构件,然后将其胶结或点焊成为蜂窝芯。基于蜂窝半格结构件滚压成形的工艺特点,利用ANSYS/LS-DYNA有限元软件对蜂窝半格结构件滚压成形进行有限元建模及弹塑性分析,得到了箔材成形过程中成形辊齿数对成形件形状尺寸、应力应变的影响规律。将有限元弹塑性分析结果应用于成形辊设计及制造,并将成形件的仿真数值与实验数值进行比较。结果表明:运用有限元分析来解决传统箔材滚压成形的缺陷是有效的。A method for manufacturing high-strength metal honeycomb core is to roll metal foil into honeycomb half- cell structure, and then to cement or weld them into honeycomb core. Based on the characteristics in the roll form- ing process of honeycomb half-cell structure, the influencing rule of the teeth number of forming rolls on the stress, strain, hape and dimension of molded parts in the roll forming is obtained by using ANSYS/LS-DYNA software. Fi- nite element elastoplastic analysis is applied to design and manufacture theforming rolls. Comparing the simulation with experimental values of forming pieces, the results show that it is effective to protect the defects of traditional honeycomb half-cell structure in the rolling forming by using FEM.

关 键 词：金属蜂窝芯 蜂窝半格结构件 滚压成形 ANSYS LS-DYNA 成形辊齿数 

分 类 号：TG306[金属学及工艺—金属压力加工]