As an important metal forming process, aluminum casting is widely used in all walks of life. The main types include pressure casting, gravity casting and squeeze casting.
Pressure casting, or die casting for short, is a process of injecting molten aluminum or aluminum alloy into a mold under high pressure and rapidly cooling, solidification and forming. This casting method can produce high-quality, smooth surface parts, has the advantages of high strength and low cost, and is widely used in automotive, electronics, aerospace and other fields.
Gravity casting uses the gravity of aluminum or aluminum alloy itself to flow into the mold, and is formed after cooling and solidification. Gravity casting can be divided into sand casting and hard mold casting. Sand casting process is simple and low in cost, and is suitable for single piece or mass production; hard mold casting uses metal molds, which can be used repeatedly, has high production efficiency, and is suitable for mass production.
Squeeze casting, also known as liquid die forging, involves injecting molten aluminum or aluminum alloy into a mold, and then applying high pressure to allow the metal to flow and solidify in the mold. This casting method can produce castings with high strength and high density, and is suitable for manufacturing parts that withstand large loads.
In terms of application matters, aluminum casting is widely used in aerospace, automobiles, electronics and electricity, machinery manufacturing, household items, construction and military fields due to its light weight, high strength, corrosion resistance and other characteristics. For example, in the aerospace field, aluminum alloy castings are used to make aircraft structural parts, effectively reducing weight and improving flight efficiency; in the automotive industry, aluminum alloy castings are used to make engine blocks, suspension systems and other components to improve the vehicle's Fuel economy and driving stability.
In short, aluminum casting processes are diverse and have a wide range of application fields, and are an indispensable and important part of modern manufacturing.