Aluminum Die Casting Auto Parts is a kind of cast metal parts, a tool that completes the die-casting process on a dedicated die-casting die forging machine.
The basic manufacturing process of Aluminum Die Casting Auto Parts is that the molten metal is firstly 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 blank The shrinkage cavity and porosity defects also make the internal structure of the blank reach the broken grains in the forged state. ​Aluminum die casting mold manufacturing

During the die-casting production process, the forming conditions of Aluminum Die Casting Auto Parts are extremely harsh. They are subject to repeated effects of mechanical abrasion, chemical erosion and thermal fatigue.
1. The molten metal enters the mold cavity under high pressure and high speed, causing intense friction and impact on the surface of the mold cavity, causing erosion and wear on the surface of the mold.
2. The molten slag will inevitably be brought in during the pouring process. The slag has a complex chemical effect on the surface of the formed part. The compound of aluminum and iron acts like a cleavage, which accelerates the formation and development of cracks in the die-casting mold.
3. Thermal stress is the main cause of cracks on the surface of mold forming parts. In the production process of each die-casting part, in addition to the high-speed and high-pressure erosion of the molten metal, the surface of the formed part also absorbs the heat released by the metal during the solidification process, resulting in heat exchange.
In addition, due to the thermal conductivity of the Aluminum Die Casting Auto Parts material, the temperature of the surface layer of the molded part rises sharply, resulting in a large temperature difference with the inside, resulting in internal stress. When the molten metal fills the cavity, the surface layer of the cavity first reaches It expands at high temperature, while the inner mold temperature is lower, and the relative expansion is small, which causes the surface layer to produce compressive stress. After the mold is opened, the surface of the cavity is in contact with air, and it is chilled by compressed air and paint to generate tensile stress. This alternating stress increases with the continuation of production. When the fatigue limit of the mold material is exceeded, Aluminum Die Casting The surface layer of Auto Parts produces plastic deformation and cracks.