How to improve the life of battery shrapnel mold

The durability of the battery shrapnel mold is very important. The battery shrapnel mold is a necessary process equipment in the stamping production process, which plays a decisive role in improving product quality, extending product life, and improving production efficiency. Because the battery shrapnel mold loses its working size due to frequent wear during the production process, it is difficult to meet the production requirements. Therefore, we need to know how to improve the life of battery shrapnel molds. 1. Improve the design of the battery shrapnel mold. Whether the design of the stamping die is reasonable is the basis for improving the life of the battery shrapnel mold. Therefore, when designing the mold, effective measures should be taken to improve the life of the stamping die. For example, the life of the design of the small hole punching die is often reflected in the punch of the small hole. For this type of stamping die, the length of the small punch should be shortened as much as possible in the design to increase the strength. At the same time, the method of guiding sleeves should be used to strengthen the small punch for protection. In addition, in the design of battery shrapnel molds, factors such as the form of the mold base, the fixing method and guiding form of the male and female molds, the determination of the pressure center, and the rigidity of the upper and lower templates should be fully considered. Especially for the blanking die, the selection of the gap value has a great influence on the life. In the design, the gap of the stamping die should be selected reasonably, and the gap value should not be too small. Practice has proved that properly enlarging the gap can greatly increase the life of the stamping die without affecting the quality of the battery shrapnel. 2. Correctly choose battery shrapnel die materials. Different stamping die materials have different strength, toughness and wear resistance. The use of advanced materials under certain conditions can increase the life span several times. Therefore, good materials must be selected. 3. Reasonably carry out forging and heat treatment of battery shrapnel mold parts. While selecting high-quality battery shrapnel mold materials, reasonable forging and heat treatment are required for materials of the same material and different properties. For example, when quenching, if it is heated Production overheating will not only make the work piece too brittle, but also easily cause deformation and cracking during cooling. 4. Reasonably arrange the battery shrapnel mold manufacturing process and ensure the processing accuracy. The processing accuracy of the stamping die has a great influence on the battery shrapnel mold. For example, due to the uneven assembly gap in the punching die, the die will often be broken under the action of shearing force and affect the life of the stamping die. Therefore, during processing, full attention must be paid to the size of the hole spacing, the perpendicularity of the punch to the fixed plate support surface during assembly, the uniform spacing of the stamping dies, and the guiding accuracy grade of the guide sleeve and the guide post. The higher the manufacturing and assembly accuracy and the higher the surface roughness of the working part, the longer the life of the stamping die. 5. Correct selection of presses. Presses with higher precision and higher rigidity should be selected, and the punching tonnage should be more than 30% greater than the punching force. Normally, the use of a servo punch can increase the life of the die by more than several tens of times. 6. Reasonable use and maintenance of battery shrapnel die In order to improve the life of battery shrapnel die, the operator must use and maintain the stamping die reasonably. The stamping die should be repaired frequently, and defective dies cannot be used.