The Analysis On Vibration And Mechanical Properties In The Process Of Rolling Cut Shear

With the rapid development of national economy, the phenomenon of surplus is more and more obvious which is particularly reflected in the steel industry and mining industry. It would be sure to bring a big impact on steel market and thus cause a more fierce competition on product category and qualities. This is surely a challenge to researchers. How to help enterprise adapt to new environment, owning more intellectual properties, updating and revamping the existing hearing and cutting machines by continuous practice and innovation. This is the most important things we must face and solve. The metal plate shearing is one of the most important processes in sheet metal forming and material processing. Hydraulic slitting shear has become the most widely used on heavy plate production line in the shearing equipment. The serious problem of medium plate shearing is focusing on the not perfect calculation of shear force, which is leading to waste of energy. The shear force is too large and unstable, which is resulting in poor quality of the steel plate shear section,slitting shear low working efficiency, at the same time can cause shear blade wear. So reasonable control and use the vibration phenomenon occurred in process of steel plate shear is of great significance on studying stress distribution in the process of steel plate fracture and the respect such as shear force calculation.This paper is based on the project of Shanxi Scholarship Council. Aiming at the present problems such as low qualified cross section, low efficiency, worn upper blade, which happened in the process of rolling shearing common used metal plate. Through the theoretical analysis on the principle of rolling shear and shearing parameters, we conclude the mechanical behavior of the rolling shear deformation area, study the factors which affecting vibration,and optimize calculation formula,By using software ANSYS/LS-DYNA, the shearing fracture process is numerically simulated, and thus improving the shear model and achieving rolling shear. The relationship between the shearing vibration and shearing force are analyzed and thereby providing a new conception of optimized process parameters.