精选优质文档-倾情为你奉上RollingObjectiveTo perform rolling process on an lead bar in order to observe the change in both the cross-sectional area and the general shape.Theory1. DefinitionFlat rolling or Rolling is defined as the reduction of the cross-sectional area of the metal stock, or the general shaping of the metal products, through the use of the rotating rolls 1. It allows a high degree of closed-loop automation and very high speeds, and is thus capable of providing high