Due to the frequent wear and tear of the stamping die in the production process, it is difficult to meet the production demand for the stamping die that has been used for a long time. So it is the key to improve the durability of hardware mold. Next, KAIXIN Aluminum will share with you the ways to improve the durability of metal stamping dies.
There are several ways to improve the durability of stamping die:
1. Improved the design of stamping dies
Whether the stamping die design is reasonable or not is the basis of improving the durability of the stamping die. Therefore, effective measures should be taken to improve the durability of stamping dies in the design of stamping dies for adverse conditions in product forming. For example, the life of punching dies designed for small holes is often reflected in punch dies for small holes. For this kind of stamping die, the length of the small punch should be shortened as far as possible in the design to increase the strength, at the same time, the guide sleeve method should be used to strengthen the small punch for protection.
2. Correct selection of stamping die materials
Different stamping die materials have different strength, toughness and wear resistance. Using advanced materials under certain conditions can increase the durability several times. Therefore, in order to improve the durability of stamping die must choose good materials.
3. Reasonable forging and heat treatment of stamping die parts
It is one of the main ways to improve the durability of stamping dies to select high quality stamping die materials and to conduct reasonable forging and heat treatment for materials with the same material and different properties. For example, when quenching, if the production of heat too hot, not only will make the stamping parts more brittle and easy to cause deformation and cracking in cooling, so that the durability is reduced. Therefore, it is necessary to master the heat treatment process reasonably when making stamping dies.
4. Reasonably arrange the stamping die manufacturing process and ensure the processing accuracy
The machining precision of stamping die has great influence on its durability. For example, in the blanking die due to the assembly gap is not even, in the shear force often make die nibble bad and affect the life of the stamping die. At the same time, the surface of the stamping die become not bright or clean. It will also reduce the durability of the stamping die.
Therefore, it is necessary to pay full attention to the size of the hole spacing, the perpendicularity of the punch to the supporting surface of the fixed plate, the uniformity of the space between the stamping dies, and the guiding accuracy level of guide sleeve and guide column during the processing. The higher the manufacturing and assembly precision and the higher the surface roughness grade of the working part, the higher the durability of the stamping die.
5. Select the correct press machine
In order to improve the durability of the stamping die, the press with higher precision and rigidity should be selected, and the stamping tonnage should be more than 30% of the stamping pressure. Normally, the use of servo punch can be correspondingly increased die life in several times to dozens of times.
6. Use and maintain stamping dies reasonably
In order to improve the durability of the stamping die, the operator must use and maintain the stamping die reasonably.
The above are the methods we sort of commonly used to improve the stamping die wear resistance. The significance of improving wear resistance can not only increase the service life of the stamping die, reduce the production cost of the die company, but also ensure the product quality and improve the production efficiency.
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