Sheet Metal Shear Curve Process Simulation

There are many kinds of sheet forming methods, and shearing is one of the most important methods, because the shearing is simple, low cost and more extensive, it can also serve as the materials for other stamping processing. The production of flexible roll forming is more and more applied in actual manufacture, and shearing is one of the procedures and provide materials for the flexible roll forming. The quality of raw materials will directly affect the quality of the terminal product.This paper sets the flexible slitting machine as the research object. Disc cutting machine is one of the important equipments with high efficiency, stable quality, suitable for mass production, and it is widely used in all kinds of metal plate shearing. The currently available slitting machine cannot achieve slitting any curve. Although some new-style processing methods, such as wire cutting and laser machine, can achieve shearing of arbitrary curve, it has high production cost. Thereby the research of flexible slitting machine has practical significance.The shear section quality is the most important in shearing processing. There are many factors that influence the quality of cross section, including:thickness, clearance, overlapping quantity, speed, the blade Angle and so on. So if we want to get good cross-section quality, we must make research of these factors. Through the finite element software (DEFORM) we make the research of shear process simulation,and get the general rule of these factors.We make the simulation for flexible slitting machine shearing process using Deform 3D and 2D finite element analysis software. Through analysis to flexible slitting machine shearing process simulation, we get the influence that various parameters of plate to the shear processing quality, such as thickness, clearance, overlapping quantity, speed, the blade Angle. It explain that the finite element method for the analysis of sheet shear research has a great potential.Through the basic research on the flexible slitting machine, provide the foundation for further research, and it has the instruction function to the actual shear process.