Due to the different components of aluminum alloys, they exhibit varying physical and chemical properties, as well as varying crystallization processes. Therefore, it is necessary to choose a reasonable casting method based on the characteristics of aluminum alloy in order to prevent or reduce the occurrence of casting defects within the allowable range, and thus optimize the casting.

The casting process performance of aluminum alloy is usually understood as the combination of the most outstanding performance during the process of filling the mold, crystallization, and cooling. Liquidity, shrinkage, airtightness, casting stress, and air absorption. These characteristics of aluminum alloys depend on the composition of the alloy, but are also related to casting factors, alloy heating temperature, complexity of the casting mold, gating system, gate shape, etc.