1. Material requirements: As the aluminum plate is soft, it is necessary to choose steel or alloy with moderate hardness when making the blank holder to ensure sufficient wear resistance and hardness.
2. Design requirements: The blank holder should be designed reasonably according to the shape, size and technological requirements of the actual drawing die, including parameters such as size, outline, angle and wall thickness.
3. Manufacturing requirements: When manufacturing the blank holder, high-precision processing technology must be adopted to ensure that the precision requirements of size and profile meet the required standards. In addition, surface treatment is needed to improve the friction coefficient and wear resistance.
4. Installation requirements: When installing the blank holder, it needs to be correctly installed on the mold, and through adjustment and correction, the matching accuracy between the mold and the blank holder can be ensured to reach the best state.