Improving the strength and stiffness of the die is critical to ensure efficient and stable operation of the press shop. The following are the key measures to optimize the die structure:
1. Reasonable selection of mold materials
Select high-strength and high-stiffness mold materials, such as high-speed steel, hard alloy, etc., to improve wear resistance and service life.
For different processing requirements, choose materials reasonably to balance the strength, wear resistance and processing cost.
2. Optimize mold wall thickness
Under the premise of ensuring the strength of the mold, reduce the wall thickness appropriately to reduce the weight of the mold, reduce thermal deformation and stress concentration.
Too thin wall thickness may lead to mold rupture or deformation, so we need to find the best balance between strength and stiffness.
3. Reinforcement design
Increase the reinforcement in the key stress parts of the mold to improve the overall stiffness and deformation resistance.
The reinforcement should be reasonably distributed and the quantity should be controlled to ensure that the overall performance of the mold is not affected.
4. Improve the symmetry of mold structure
Adopt symmetrical design to make the force uniform and avoid stress concentration and local deformation.
The symmetry of structure helps to improve the stability of the mold and prolong the service life.
5. Adopt reasonable heat treatment and surface treatment.
Through quenching, nitriding and other heat treatment processes, improve the hardness of the mold, enhance wear resistance and fatigue resistance.
Surface treatment (e.g. PVD, TD) can further enhance the wear resistance of the mold, reduce wear and improve stiffness.
6. Adopt advanced connection technology
Adopt high-strength welding, riveting or bolting to improve the bonding strength between the various parts of the mold and enhance the overall stiffness.
The connection should consider the convenience of disassembly and maintenance to improve the efficiency of the mold.
7. Optimize cooling system design
Reasonable layout of cooling waterways to ensure uniform heat dissipation and reduce thermal deformation caused by high temperature.
Adopt efficient cooling solutions, such as straight-through cooling, localized enhanced cooling, to improve the stability of the mold.
8. Enhance the maintenance and repair of the mold
Regularly clean, lubricate and tighten all parts of the mold to prevent loosening or wear and tear affecting the rigidity of the mold.
Conduct preventive inspections to detect and repair hidden dangers that may affect the strength and stiffness in time.