材料性能对变径管自由翻转变形模式的影响  

Impact of Material Properties on Variable Diameter Tube Free Inversion Deformation Model

作　　者：崔自轩 雷君相[1] CUI Zixuan;LEI Junxiang(School of Materials Science ＆ Engineering, University of Shanghai for Science and Technology, Shanghai 20093, Chin)

机构地区：[1]上海理工大学材料科学与工程学院,上海200093

出　　处：《有色金属工程》2017年第6期5-8,共4页Nonferrous Metals Engineering

基　　金：上海市自然科学基金资助项目(06ZR14143)

摘　　要：利用ABAQUS软件模拟了20钢、6010铝合金、SUS304不锈钢三种材料变径管液压胀形与折叠和自由翻转的过程。并分析三种材料液压胀形与折叠后的壁厚分布和翻转圆角半径对准静态压缩翻转变形模式和翻转载荷的影响。结果表明,壁厚减薄程度不同对变径管的翻转变形模式影响较大,20钢发生内管外翻;6010铝合金发生复合翻转,SUS304不锈钢发生外管内翻;当翻转圆角半径为1.2 mm时,变径管在翻转时圆角半径变化较小,翻转力更平稳。Using ABAQUS software to simulate the process of variable diameter tube hydraulic bulging with folding and free inversion about 20 steel, 6010 aluminum alloy, SUS304 stainless steel of three kinds of material. And analysis of the three kinds of materials thickness distribution after hydraulic bulging and folding as well as inversion radius impact on the inversion deformation mode and inversion load in the process of quasi-static compression. It turned out that： the thickness thinning degree of variable diameter tube has a greater influence on the inversion deformation mode, the 20 steel occurs inner tube rolled to outer tube, the 6010 aluminum alloy occurs composite inversion, the SUS30d stainless steel occurs outer tube rolled to inner. When the inversion radius is 1.2 mm, the inversion radius of the variable diameter tube change smaller, and the tilting force more smoothly.

关 键 词：液压胀形与折叠 变径管 准静态压缩 自由翻转 

分 类 号：TG386[金属学及工艺—金属压力加工]