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How to improve the durability of stamping die mold?
2024-07-19 15:59:09
There are generally several ways to improve the durability of the stamping die:
1. improve the design of stamping die
Whether the design of stamping die is reasonable is the basis of improving the durability of stamping die. Therefore, when designing stamping dies, effective measures should be taken against adverse conditions in product forming, which aims to improve the durability of the stamping die. For example, the life of the stamping die mold is often reflected in the punch of the punching hole. For this type of stamping die, the small punch should be designed to shorten its length as much as possible to increase strength, at the same time, the guide sleeve method should also be used to strengthen the small punch for protection.
2. the correct selection of stamping die material
Different stamping die materials have different strength, toughness and wear resistance. The use of advanced materials under certain conditions can increase durability several times. Therefore, in order to improve the durability of the stamping die, it is necessary to choose good materials.
Toolox series material is a new type of pre-hardened tool steel with high toughness, high wear resistance and basically no internal stress. Moreover, it has very high purity, very fine grain size, and very small S and P content. Precipitated carbide content is small, which makes Toolox series materials have special advantages in the application of some stamping dies. For example, thicker steel plate (typical case punching thickness of 35mm steel plate), stainless steel plate, and non-ferrous metal plate stamping mold, typical case is air conditioning fin mold.
3. reasonable forging and heat treatment of stamping die parts
While selecting high-quality stamping die materials, reasonable forging and heat treatment with the same material and different properties is one of the main ways to improve the durability of stamping die. For example, when quenching, if the production is too hot during heating, it will not only make the workpiece too brittle, but also easily cause deformation and cracking during cooling, so that the durability is reduced. Therefore, in the manufacture of stamping die, it is necessary to reasonably master the heat treatment process.
4. reasonable arrangement of stamping die manufacturing process and ensure processing accuracy
The processing accuracy of the stamping die has a great impact on the durability of the stamping die. For example, due to the uneven assembly gap in the punching die, the die is often gnawed under the action of shear force and affects the life of the stamping die. Therefore, it is necessary to pay full attention to the size of the hole distance during processing, the perpendicularity of the punch to the support surface of the fixed plate during assembly, the even spacing of the stamping die, and the guiding accuracy level of the guide sleeve and guide column
5. the correct selection of press machine
In order to improve the durability of the stamping die, a press machine with higher precision and higher rigidity should be selected, and its stamping tonnage is greater than 30% of the punching pressure. Normally, the use of servo punch can increase the life of the mold by dozens of times.
6. reasonable use and maintenance of stamping die
In order to improve the durability of the stamping die, the operator must use and maintain the stamping die reasonably, and it should be regularly repaired to prevent the stamping die with problems