Optimization Model of Process Parameters for Full-Plate Long-Roll Straightening considering Equipment Bounce

Abstract

Roll straightening is an important process link in sheet production. Due to the step change of the straightening force during the straightening bite and the tail flick, the whole-plate length straightening and pressing process changes will affect the straightening effect. Based on the solution of the curvature integral straightening process, this paper introduces the stiffness coefficient of the straightening equipment. Through C language programming, the iterative solution has been realized, and the process parameters of the dynamic change of the straightening reduction have been obtained. The enumeration method was used to establish a calculation method to optimize the entire board-length straightening process. The laboratory comparison of the 11-roll straightening machine proves that the straightening process optimization model meets the application requirements.

Investigation on the Interface Morphology of Mg/Al Corrugated Composite Plate in the Straightening Process

“…Moreover, the interface force is less than that produced by flat-roll rolling, which is caused by the angle between the vertical stress and the bonding interface, so that the service strength and life of Mg/Al corrugated composite plate would be significantly increased [13]. After corrugated rolling, the straightening process is essential to achieve the strict shape requirements and specific residual stress range in extreme service conditions of high temperature and etching [14,15]. The elastic-plastic deformation at the interface of Mg/Al corrugated composite plate in straightening would have a great impact on the interface morphology [16].…”