Power tools die casting part is a method of casting liquid forging. The die-casting die forging process is a process completed on a dedicated die-casting die forging machine. Its basic process is as follows: firstly, the molten metal is cast into the cavity of the mold at low or high speed. The mold has a movable cavity surface. It is forged under pressure with the cooling process of the molten metal, which eliminates the shrinkage of the blank. Loose defects also make the internal structure of the blank reach broken grains in the forged state. The comprehensive mechanical properties of the blank have been significantly improved.

Aluminum alloy die-casting products are mainly used in electronics, automobiles, motors, home appliances and some communications industries. Some high-quality aluminum alloy products with high performance, high precision and high toughness are also used in industries with high requirements such as large aircraft and ships. . The main use is still in the parts of some equipment.

In die-cast aluminum alloy, the aluminum content is in the range of 3%-4.5%. Aluminum can reduce the corrosion of molten zinc to ferrous metals when it is within this content range. Iron is still insoluble in zinc solution at 430°C. Simultaneously. Aluminum can refine grains and is stronger than alloys. With the increase of aluminum content, the strength and impact value of the alloy are significantly improved. Aluminum can also improve the fluidity of the alloy.

Alloys with an aluminum content of less than 3.5% have reduced fluidity and mechanical properties, and increase the tendency of thermal cracking and the phenomenon of increased shrinkage. Therefore, it is not suitable for die casting.

If the aluminum content exceeds 4.5%, it will no longer have a significant effect on the improvement of mechanical properties, but the impact toughness will decrease a lot. Therefore, the Aluminum die casting for die casting is generally controlled at about 4%.