Application and prospect of aluminum die casting in automobile industry

Aluminum die casting parts are pressure casted parts with metal aluminum or aluminum alloy as the main raw material. Aluminum and aluminum alloys have good thermal conductivity, small specific gravity and high machinability. And aluminum die casting is widely used in automotive, internal combustion engine production, motorcycle manufacturing, motor manufacturing, oil pump, transmission machinery, precision instruments, botanical garden beautification, the electric power construction, building decoration and other industries. As an enterprise with rich industry experience and advanced manufacturing technology, Sieg-Huao will discuss the application and prospect of aluminum die-casting in automobile manufacturing. 

First of all, in the past 20 years the world's energy problem has become increasingly serious, which makes the reduction of auto self-weight and fuel consumption become the key to competition of major automobile companies. According to data analysis and statistics, for every 100kg reduction in vehicle weight, the combustible travel distance of each litre of gasoline increases by 4km. For every 1 percent reduction in vehicle weight, fuel consumption dropped 0.6 percent to 1 percent. Aluminum has the characteristics of small densities, and good corrosion properties. The aluminum alloy has excellent plasticity, is suitable for casting, forging and stamping processes, and is most suitable for die casting processes of automobile parts. Compared with production cost, part quality and material utilization, aluminum alloy has become an indispensable material in automobile products. It has been shown that the use of aluminum alloy instead of steel structure can reduce the weight of automobiles by 28 to 42 percent, the manufacturing of wheel hubs by 35 to 40 percent, and the manufacturing of engine technology by 25 to 30 percent. Aluminum alloy is one of the important ways of automotive lightweight, environmental protection, energy saving, speed raising and transportation efficiency. At present, the United States, Japan and Germany are the countries with the most aluminum alloys for automobiles.

At present, the application of aluminum die-casting in automobile mainly includes the following categories:

1. Aluminum alloy for engine

2. Aluminum alloy for wheel hub

3. Aluminum alloy with deformation

At present, our automobile manufacturing industry in China has jumped into the fourth place in the world only lagging behind the developed countries of the United States, Japan and Germany. But we have fallen behind in the aluminization technology of the car body. The aluminizing rate of automobiles in developed countries has reached the level of 12% alloying rate, while only less than 5% in China, the gap is still obvious. Therefore, the development prospect of aluminum die-casting technology is very promising in the automobile market in China.