Typical Application of Automobile Die Casting

With the development of modern automobile in the direction of safety, energy saving and environmental protection, the light weight of automobile is one of the most effective ways to save energy and reduce consumption. The aluminum alloy die casting can effectively reduce the self-weight of the automobile, and the application advantage of the main material has been recognized by the automobile industry.

There are four kinds of main auto parts are made of aluminum alloy die casting, let us review together one by one.

1. Aluminum alloy die casting chain shell cover

The aluminum alloy die casting chain shell cover is mainly used for connecting the engine block and the oil sump tank, and it is subject to oil pressure and air pressure at all times during the running of the vehicle, so its high internal quality is required. Such parts mainly occur during die casting production substandard deformation and internal quality defects, it is necessary to ensure the casting parts have relatively small machining allowance and deformation. Although the input cost of fixture and mold is high because it's made of aluminum die casting, but the production efficiency is high, and the total cost is not too high compared with the mass production of the automobile industry.

2. Aluminum alloy die casting engine cylinder

Engine is the heart of a car, the quality of the engine decides the quality of the car. The cylinder is the core part of the engine. Early cylinders were made of low pressure die casting or sand casting which are both cheaper than aluminum alloy die casting process. But now most engine cylinders are made of aluminum diecast with the rising of oil price and the development of automobile lightweight demand. Due to the better thermal conductivity of aluminium alloy than cast iron, aluminum alloy cylinder head and cylinder block can improve the working state of the engine, the thermal efficiency, and enhance the working efficiency of the engine in large degree.

3. Aluminum alloy die casting support part

Aluminum alloy die casting support part is mainly used for the connection of key parts such as automobile engine and transmission, although it is not as important as cylinder block and cylinder head, but the quality of such parts is crucial to the safety of the whole car. The main problem of aluminum alloy parts in die casting process is deformation

4. Aluminum alloy die casting oil sump tank

Aluminum alloy die casting oil sump tank is the lower part of the crankcase, also known as the lower crankcase, which acts as the enclosure of the reservoir to prevent impurities from entering, and collects and stores the lubricating oil flowing back from each friction surface of the oil diesel engine, dissipating part of the heat and preventing oxidation of lubricating oil. The main defects in aluminum die casting are leakage. Although aluminum alloy diecast oil sump tank is not as strong and durable as steel sheet, it has distinctive advantages compared with steel tank, which is the light weight and good heat dissipation.

In addition to the four common aluminum alloy die casting parts listed above, steering wheel skeleton, airbag control box shell of aluminium alloy die casting in the automotive application are also common.