Effect of lubrication on the evolution of strain states in AA 5052 sheet during shape rolling

알루미늄 5052 합금 판재의 이형 압연 시 변형률 상태에 미치는 윤활의 영향

In order to investigate the effect of strain states attributed to the lubrication during shape rolling, shape rolling for V-sectioned sheets was carried out with and without lubrication. The evolution of strain states during shape rolling was studied by three-dimensional finite element method (FEM). Shape rolling with and without lubrication produces shape-rolled samples in fairly similar outer shapes, since the distribution of normal strain components is nearly independent of the lubrication condition. In contrast, the distribution of shear strain components strongly depends on the lubrication condition.