13 things that must be paid attention to when designing precision metal stamping dies

Good mold design can improve mold life, durability, production efficiency, reduce production costs and ensure product quality. So what should be paid attention to when designing the mold? Below, the author introduces 13 things that must be paid attention to when designing precision metal stamping dies. 1. Before designing the material belt, it is necessary to understand the tolerance requirements of the parts, material properties, punch tonnage, punch table, SPM (strokes per minute), feeding direction, feeding height, mold thickness requirements, material utilization rate, mold service life . 2. When designing the material belt, CAE analysis should be carried out at the same time, mainly considering the thinning rate of the material, and more communication with customers. 3. The material belt design is an analysis of the molding process of the product, which basically determines the success of the mold. 4. In mold design, mold material selection and heat treatment and surface treatment, especially metal drawing parts. 5. When you try the mold for the first time, you must slowly close the upper mold. When there is a stretching process, you must use a fuse to test the thickness of the material level. After the material level gap reaches the material thickness, try the mold again. The knife edge must be first. That's right. Please use movable inserts to adjust the height of the drawbead. 6. When testing the mold, the reference hole and reference surface must be matched with the mold before placing the product on the inspection tool for measurement, or sending it to CMM for 3D report. 7. The red pill must be matched well, otherwise the product will be unstable and the later model modification cannot be judged, and the part size will not meet customer requirements. 8. For parts with more bending, the bending should be adjusted step by step according to the process when adjusting the mold. 9. When adjusting the forming angle, you can reduce the R angle during bending or move the folding line reference to achieve the purpose of forming angle. 10. When adjusting the mold, most of the gaskets are used to adjust the height of the forming male, or the forming male parts can be moved left and right. The gasket is generally made of stainless steel. 11. For the trimming lines that are affected by the forming, you should choose to cut them after forming, and special positions can be realized by cross-cutting. 12. For multiple reference hole positions, one-time punching is used to avoid the impact of precision after step-by-step punching. 13. For the product rupture, it can be carried out in various ways such as adding packaging, extruding materials, increasing the forming area of u200bu200bthe sheet rod, and opening holes during the early stretching. CAE analysis should be carried out before the modification of the mold. The above is a summary of some experience in the actual stamping work, I hope it will be helpful to those who read this article. [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)