北京科技大学学报Issue(3)：378-382,5.DOI:10.13374/j.issn1001-053x.2014.03.016
冷轧带钢板形翘曲变形过程及规律的解析
Analysis of warping deformation for cold-rolled strips
摘要
Abstract
The common shape defect of warping deformation, which is caused by the uneven vertical elongation of strips in the thickness direction, was studied by applying symplectic elasticity method. The relationship between the warping value and the distribu-tion of vertical elongation was obtained through establishing and solving a mechanical model of warping deformation. Based on the cor-rectness of the mechanical model and calculated results which were verified by general finite element method, the influence laws of fac-tors on warping deformation were gotten by deduction and calculation. It is shown that the warping value increases linearly with the in-creasing elongation difference between the top and bottom surfaces and the increasing ratio of the transverse to vertical elongation differ-ence, decreases with increasing strip thickness, but increases quadratically with increasing strip width. Finally, the phenomenon of C-warping converting to L-warping was studied by using the symplectic elasticity model of warping deformation, a mechanical model of C-warping converting to L-warping was established, and the formula for this converting was obtained, which was verified by field experi-ment.关键词
冷轧/带钢/翘曲/解析模型Key words
cold rolling/strip steel/warping/analytical models分类
金属材料引用本文复制引用
张清东,卢兴福,戴杰涛,秦剑..冷轧带钢板形翘曲变形过程及规律的解析[J].北京科技大学学报,2014,(3):378-382,5.基金项目
国家科技支撑计划项目(2011BAE13B05) （2011BAE13B05）
国家自然科学基金资助项目(51075031) （51075031）
