Analysis of the characteristics of bending die assembly in metal stamping die

Precision, is a manufacturer that can customize various metal stamping parts, metal drawing parts, motor housings, and embedded injection molded parts. We all know that stamping products are processed by various stamping dies. The following will introduce to you the characteristics of bending die assembly in metal stamping dies. The function of the bending die in the metal stamping die is to make the blank bend within the plastic deformation range, and the required shape can be obtained from the permanent/permanent deformation of the material after bending. Under normal circumstances, the matching requirements of the guide sleeve and guide post of the bending die can be slightly lower than that of the punching die, but the surface roughness value of the working part of the punch and the die is smaller than that of the punching die, in order to improve the life of the die and metal stamping The surface quality of the piece. In the bending process, due to the impact of material springback, the shape of the bent part in the mold is often inconsistent with the shape after being taken out, which affects the shape and dimensional accuracy of the metal stamping part. There are many factors that affect springback, and it is difficult to eliminate it through design calculations. Therefore, when making a mold, it is often necessary to adjust the shape of the punch (or die) according to the springback value during mold trial. In order to facilitate the trimming, the convex and concave molds of the bending mold are usually heat-treated after the test mold is qualified. In addition, bending belongs to deformation processing, and the blank size of some bending parts can only be determined through experiments. Therefore, the purpose of the trial punching of the bending die is to find out the defects of the die to correct and adjust, and another purpose is to determine the blank size of the part. Because this work involves the deformation of the material, the adjustment of the bending die is much more complicated than that of the general punching die. [Related recommendation] Learn more: What are the methods for polishing the surface of stainless steel? Learn more: Manufacturing characteristics of automobile stamping parts molds Learn more: Points to note in the design of continuous stamping dies (2)