The theory of slip line of metal stamping parts

Under normal circumstances, when we consider the problem of the slip line method of metal stamping parts, we will have a prerequisite. We will think that the thickness of the sheet flange will not change, and the plane strain state will be maintained, while the material is isotropic and does not harden , But also ignore the influence of friction distribution on plastic flow. It can be seen from the above that only stamping parts with simple shapes can establish a slip line field. In addition, it must be ensured that the mathematical expression of the slip line can be obtained from the known information under very clear boundary conditions. Under normal circumstances, in the production of stamping parts, we need to combine the numerical integration of the characteristic equation, and refer to the established boundary conditions for analysis and research, and finally obtain an approximate slip line field. However, this method is based on a certain foundation and is more complicated when performing mathematical operations, so it is not widely used. And it will be much easier if the simulation method is used. The so-called simulation method means that we first give some assumptions, and then on this basis, through the analysis of the similarity of the mathematical description of some physical problems, combined with similar theories, and with the help of models composed of other physical media, the sheet flange The metal flow is simulated. In this case, it is more conducive to the processing and production of metal stamping parts. Slowly, this method has been promoted to a certain extent, and the approximate range can be measured in about ten minutes. However, in this case, the general method also requires the use of electrolyte devices and certain data measurements, so the early accuracy will be affected by many uncertain factors. There is another method called fluid simulation method. This method mainly uses fluid simulation test and computer-aided simulation to obtain blank shapes of various irregular-shaped stamping parts. The above is about some knowledge and theories that will be involved when processing stamping parts. I hope this explanation will help you understand some theoretical knowledge of stamping parts more deeply. 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