1060铝板两道次渐进成形圆孔翻边优化  

Optimization of two-pass incremental forming round hole flanging of 1060 aluminum plate

作　　者：刘金杰 高锦张[1] LIU Jin-jie;GAO Jin-zhang(Jiangsu Key Laboratory of Advanced Metallic Materials,School of Materials Science and Engineering,Southeast University,Nanjing 211189,China)

机构地区：[1]东南大学材料科学与工程学院江苏省先进金属材料高技术研究重点实验室,江苏南京211189

出　　处：《塑性工程学报》2021年第7期64-71,共8页Journal of Plasticity Engineering

基　　金：先进数控技术江苏省高校重点建设实验室开放基金资助项目(KXJ05017)。

摘　　要：以1060铝板为研究对象,基于DYNAFORM有限元模拟平台,建立了扩孔两道次渐进成形圆孔翻边模型,并通过ETA/POST后处理软件对成形结果进行了分析,比较了单道次成形和扩孔两道次成形制件的壁厚分布情况和翻边高度。研究结果表明,相较于单道次成形,扩孔两道次成形可以有效减少制件的减薄现象,使壁厚分布更为均匀;根据模拟结果,拟合出扩孔两道次渐进成形圆孔翻边高度的表达式。使用渐进成形数控机床进行实验验证,证实了模拟结果的可信性和准确性。Taking 1060 aluminum plate as the research object,based on the DYNAFORM finite element simulation platform,a two-pass incremental forming round hole flanging model was established,and the forming results were analyzed by ETA/POST post-processing software.The wall thickness distribution and flanging height of the workpieces formed by single-pass and two-pass reaming were analyzed.The research results show that compared with the single-pass forming,the two-pass reaming forming can effectively reduce the thinning of workpiece and make the wall thickness distribution more uniform.According to the simulation results,the expression of the round hole flanging height of the two-pass incremental forming of the reaming was fitted.Experimental verification was carried out using progressive forming numerical control machine tool,and the credibility and accuracy of the simulation results were verified.

关 键 词：渐进成形 圆孔翻边 扩孔 翻边高度 

分 类 号：TG379.6[金属学及工艺—金属压力加工]