The manufacturing process of stamping dies includes steps such as design, processing, assembly, commissioning and maintenance. In modern mold manufacturing, advanced processes such as CNC machining technology, EDM and laser cutting are widely used to improve the precision and efficiency of mold manufacturing.
1. Design stage
Before manufacturing a stamping mold, detailed design work is first required. This includes determining the type, structure, dimensions and working principle of the mold. The design phase usually uses computer-aided design (CAD) software to create a three-dimensional model of the die and perform simulation analysis to ensure the feasibility and efficiency of the design.
2. Material Selection
Choosing the right material for the mold is crucial. Commonly used mold materials include high speed steel (HSS), powder metallurgy steel, cemented carbide and tungsten steel. The choice of material depends on the purpose of the die, the nature of the stamping material, the stamping speed and the expected life of the die.
3. Manufacturing process
The manufacturing process of stamping dies usually includes the following steps:
Cutting and pre-machining: The selected die material is cut into approximate shapes and subjected to preliminary machining, such as milling and turning.
CNC machining: Precision machining of the mold using CNC machine tools (CNC), including drilling, milling, grinding, etc.
Electrical Discharge Machining (EDM): For complex shapes and fine holes, it may be necessary to use EDM to complete the process.
Wire Cutting: For particularly fine cuts, wire cutting techniques may be used.
Heat treatment: Heat treatment, such as quenching and tempering, is often required to improve the hardness and wear resistance of the mold.
Surface treatment: In order to reduce wear and improve corrosion resistance, the surface of the mold may be hardened, plated or otherwise surface treated.
4. Assembly and commissioning
After the various parts of the mold are machined, they need to be assembled accurately. During the assembly process, it is necessary to ensure that all parts are correctly installed and that the moving parts of the mold can operate smoothly. After assembly, the mold needs to be debugged to ensure that it can work properly in the actual stamping process.
5. Mold testing and optimization
After the mold is assembled and commissioned, a mold trial will be conducted to check the performance of the mold and whether the products produced meet the design requirements. If problems are found, the die may need to be adjusted and optimized.
6. Maintenance and servicing
Stamping dies require regular maintenance and servicing during use to maintain their optimum performance. This includes cleaning the mold, checking for wear and tear, and replacing damaged parts.