Effects of process parameters on numerical control bending process for large diameter thin-walled aluminum alloy tubes  

作　　者：李成 杨合 詹梅 许旭东 李光俊 

机构地区：[1]State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University [2]Chengdu Aircraft Industry (Group) Co rporation Ltd

出　　处：《中国有色金属学会会刊：英文版》2009年第3期668-673,共6页Transactions of Nonferrous Metals Society of China

基　　金：Project(50225518) supported by the National Science Foundation of China for Distinguished Young Scholars;Project(59975076, 50175092) supported by the National Natural Science Foundation of China;Project(04H53057) supported by the Aviation Science Foundation of China

摘　　要：Numerical control(NC) bending experiments with different process parameters were carried out for 5052O aluminum alloy tubes with outer diameter of 70 mm, wall thickness of 1.5 mm, and centerline bending radius of 105 mm. And the effects of process parameters on tube wall thinning and cross section distortion were investigated. Meanwhile, acceptable bending of the 5052O aluminum tubes was accomplished based on the above experiments. The results show that the effects of process parameters on bending process for large diameter thin-walled aluminum alloy tubes are similar to those for small diameter thin-walled tubes, but the forming quality of the large diameter thin-walled aluminum alloy tubes is much more sensitive to the process parameters and thus it is more difficult to form.Numerical control（NC） bending experiments with different process parameters were carried out for 50520 aluminum alloy tubes with outer diameter of 70 mm, wall thickness of 1.5 ram, and centerline bending radius of 105 mm. And the effects of process parameters on tube wall thinning and cross section distortion were investigated. Meanwhile, acceptable bending of the 50520 aluminum tubes was accomplished based on the above experiments. The results show that the effects of process parameters on bending process for large diameter thin-walled aluminum alloy tubes are similar to those for small diameter thin-walled tubes, but the forming quality of the large diameter thin-walled aluminum alloy tubes is much more sensitive to the process parameters and thus it is more difficult to form.

关 键 词：小口径薄壁管 工艺参数 铝合金管 弯曲过程 大直径 数控 弯曲试验 数字控制 

分 类 号：TG146.21[一般工业技术—材料科学与工程]