圆管无模弯曲加工极限及断面扁平化实验  

Experiment of limit bending radius and flattening during circular tube dieless bending

作　　者：夏鸿雁[1] 吴迪[2] 

机构地区：[1]沈阳大学机械工程学院,辽宁沈阳110044 [2]东北大学轧制技术及连轧自动化国家重点实验室,辽宁沈阳110819

出　　处：《钢铁研究学报》2015年第3期27-30,共4页Journal of Iron and Steel Research

基　　金：国家重点实验室开放课题基金资助项目(201101);国家自然科学基金资助项目(51174139)

摘　　要：进行了圆管无模弯曲的基础实验研究。在无模弯曲实验研究的基础上,研究了变形区宽度等参数对圆管材极限弯曲半径的影响,分析了弯曲成形诸因素对圆管扁平化的影响。研究结果表明:在变形宽度一定的情况下,圆管扁平化随着相对弯曲半径的增加而减小;在弯曲半径一定的情况下,随着变形宽度的减小,圆管扁平化减小;圆管加工极限值随着变形宽度的增加而增加;加工极限值与相对变形宽度基本呈线性关系。The foundational experiment of circular tube dieless bending was carried out.Based on the experimental study,the relationship between various parameters such as deformation width and limit bending radius was studied and the effect of various parameters on circular tube flattening rate was analyzed.The results show that circular tube flattening rate increases when relative bending radius decreases with constant deformation width,tube flattening rate decreases with decreases of deformation width with constant bending radius.Limit bending radius increases with increases of deformation width.Relative limit bending radius and relative deformation width is linear relationship.

关 键 词：圆管 无模弯曲 扁平化 极限弯曲半径 

分 类 号：TG306[金属学及工艺—金属压力加工]