Factors affecting the durability of precision forging molds:
Mold design aspect
Reasonable structural design and stamping die design are the basis for improving the quality and durability of stamping dies. Effective measures should be taken to address adverse conditions during product forming when designing stamping dies, in order to improve the durability of stamping dies. The lifespan of a small hole stamping die is often reflected in the punch used to punch the small hole. For this type of stamping die, the length of the small convex die should be shortened as much as possible during design to increase strength. At the same time, a guide sleeve should be used to strengthen the small convex die for protection. In addition, in the design of stamping molds, factors such as the form of the mold frame, the fixing and guiding methods of the convex and concave molds, the determination of the pressure center, and the rigidity of the upper and lower templates should be fully considered.
In terms of mold materials
Different stamping die materials have different strengths, toughness, and wear resistance. Using good materials under certain conditions can increase durability several times. Therefore, in order to improve the durability of stamping molds, it is necessary to choose good materials.
Reasonable forging and heat treatment of materials for stamping molds is one of the main ways to improve the durability of stamping molds. For example, during quenching, if overheating occurs during heating, not only will the workpiece become too brittle, but it is also prone to deformation and cracking during cooling, resulting in reduced durability. Therefore, when manufacturing stamping molds, it is necessary to have a reasonable grasp of the heat treatment process.
In terms of mold manufacturing process
The machining accuracy has a significant impact on the durability of stamping molds. Due to uneven assembly clearance in the punching die, the concave die is often bitten under shear force, which affects the service life of the punching die. Meanwhile, if the surface smoothness of the stamping die is too low, it will also reduce the durability of the stamping die. Therefore, sufficient attention should be paid to the size of the hole spacing, the uniformity of the stamping die spacing, and the guide sleeve during processing. The higher the manufacturing and assembly accuracy and the higher the surface roughness level of the working part, the higher the durability of the stamping die.
Regarding the use and maintenance of molds
Reasonable use: In order to improve the durability of metal stamping molds, staff need to do a good job in maintenance and upkeep of metal stamping molds, use stamping molds reasonably and correctly, and regularly repair stamping molds to avoid greater damage.
