所属单位：机电学院
发表刊物：RARE METAL MATERIALS AND ENGINEERING
关键字：Al-Li alloy 2-profile roll bending oblique bending
摘要：Variable curvature 2-profile of 2099 Al-Li alloy is important truss of Chinese independently developed large airplane C919, and four roll bending forming is the main method to manufacture this kind of part. Due to the high specific strength of Al-Li alloy and asymmetric structure of 2-profile, compared with profile of conventional aluminum alloy, 2-profile of Al-Li alloy is extremely prone to oblique bending. Therefore, four roll bending process of 2-profile was simulated by finite element software ABAQUS. Effect of clearance between rollers and profile, clearance between bottom roller and profile's down surface in vertical direction, displacement in X direction of left and right rollers was researched on oblique bending during four roll bending of 2-profile, and the best roll bending process parameters was confirmed. Roll bending process experiment was carried out based on it. The results show that 0.2 mm for clearance between rollers and profile, 0.3 mm for clearance between bottom roller and profile's down surface in vertical direction, 1.5 mm for displacement in X direction of left and right rollers can effectively solve the problem of oblique bending for roll bending of 2-profile.
ISSN号：1002-185X
是否译文：否
发表时间：2017-10-01
合写作者：Hu Zhihua,谢兰生
通讯作者：陈明和
发表时间：2017-10-01