Metal stamping die to improve durability
Since the stamping die often wears out during the production process and loses the working size, it is difficult to meet the production requirements. Therefore, improving the durability of metal stamping dies is the key. Next, the metal stamping die manufacturers share the method of improving the durability of the metal die.
There are generally several ways to improve the durability of stamping dies:
1. Improve the design of stamping dies
Whether the stamping die design is reasonable is the basis for improving the durability of the stamping die. Therefore, in the design of the stamping die, effective measures should be taken to deal with the unfavorable conditions in the forming of the product to improve the durability of the stamping die. For example, the life of the design of the small hole punching die is often expressed on the punch of the punching hole. For this type of stamping die, the small punch should be shortened as much as possible to increase the strength. At the same time, the small punch should be strengthened by the guide sleeve.
2, the correct choice of stamping die material
Different stamping die materials have different strength, toughness and wear resistance. Using good materials under certain conditions can increase durability several times. Therefore, in order to improve the durability of the stamping die, it is necessary to select a good material.
3. Reasonable forging and heat treatment of stamping die parts
While selecting excellent stamping die materials, reasonable forging and heat treatment of materials of the same material and different properties are one of the main ways to improve the durability of stamping die. For example, when quenching, if the production is overheated during heating, not only the workpiece is too brittle, but also causes deformation and cracking during cooling, resulting in reduced durability. Therefore, in the manufacture of stamping dies, it is necessary to have a reasonable grasp of the heat treatment process.
4. Reasonably arrange the stamping die manufacturing process and ensure the machining accuracy
The processing accuracy of the stamping die has a great influence on the durability of the stamping die. For example, in the blanking die, due to the uneven assembly gap, the shearing force often causes the die to be damaged and affects the life of the stamping die. At the same time, the surface finish of the stamping die is too low, which will also reduce the durability of the stamping die.
Therefore, it is necessary to pay sufficient attention to the hole distance, the verticality of the punch to the support surface of the fixed plate during assembly, the uniformity of the distance between the stamping die, and the guide level of the guide bush and the guide post. 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.
5, the correct choice of press
In order to improve the durability of the stamping die, a press with higher precision and higher rigidity should be selected, and the punching tonnage should be greater than 30% of the punching pressure. Normally, the use of servo punches can increase the life of the mold by several times to several tens of times.
6, reasonable use and maintenance of stamping dies
In order to improve the durability of the stamping die, the operator must use and maintain the stamping die reasonably, and the stamping die should be frequently repaired to prevent the stamping die from working.
The above is the commonly used method to improve the wear resistance of stamping dies. The significance of improving the wear resistance can not only increase the service life of stamping dies, reduce the production cost of mold enterprises, but also ensure the quality of products produced and improve production. effectiveness.