What are the blank design methods for stamping parts

Design has always played a very important role in production work, which must be easy for everyone to understand. The same is true for stamping parts. In actual work, different methods can be used to complete the design of stamping blanks. There are currently four commonly used methods, and we will explain each of the different methods in detail below, hoping to help. The first method is called the slip line method. However, if this method is adopted, certain prerequisites need to be met. The basic assumption about the slip line method is this: the thickness of the sheet flange remains unchanged, and the plane strain state is maintained, the material is isotropic, there is no hardening, and the influence on the friction is negligible. However, since the slip line method of stamping parts is quite complicated in calculation, it is difficult to popularize. The second method is called the geometric mapping method, and this method is also proposed under assumptions. When we ignore the deformation force, stress-strain relationship and boundary friction and other conditions, we combine some assumptions to realize the mapping of the workpiece to the blank. In our research, we found that the geometric mapping method of stamping parts will be affected by the accuracy of the discrete. The determination of a reasonable discrete accuracy will also have a certain impact on the computer's calculation speed and unfolding accuracy. The third is the empirical method. This method is easy to understand. Simply put, we find certain experience from previous processing cases. This method is mainly used for developable stamping parts with relatively simple shapes, such as rotating parts and bending parts. Generally speaking, this method will have a certain deviation in accuracy, because many factors need to be considered. The last one is called the simulation method. Relatively speaking, this method is still more widely used. When using this method, certain assumptions are also required. At the same time, combined with the similarity of the mathematical description of some physical problems, through the mathematical similarity theory, a model is finally formed to simulate the metal flow of the sheet flange, thereby processing the stamping Pieces. Related news: The characteristics of the main materials of stamping parts, the treatment of common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspections