Application of aluminium alloy in automotive lightweighting and examples of heavy truck lightweighting

1.1 Energy saving and environmental protection advantages

After the analysis of big data statistics, there is a close relationship between the quality of the whole car and the fuel consumption of the car. It is believed that the automobile industry has a greater impact on the improvement of the environment, VOCs come from the exhaust of automobiles to a large extent, and according to the research of the World Aluminium Association, for every 10% of automobile lightweight, the exhaust emission is reduced by 5-6%. According to the information, the car to reduce 1Kg self-weight, every 10000Km, can reduce fuel consumption 0.7L .

With the increase of car ownership and the enhancement of people's awareness of environmental protection, automotive emissions and the disposal of end-of-life vehicles has become a social concern. Science shows that the lighter the weight of the car, the more obvious the effect of fuel saving, the less the car exhaust emissions will be, the less impact on the environment. At the same time, aluminium products have a high reuse rate, which can reach about 80%, and the superior performance determines the important position of aluminium alloy material in the field of automobile lightweighting.
1.2 Improvement of vehicle driving performance and safety performance

With the improvement of people's living standard, the requirements for high speed, comfort and safety in automobile driving are gradually improved. After the weight of the car is reduced, the centre of gravity of the body is lowered, the driving of the car is more stable and comfortable, and the noise of the rotating and vibrating parts is obviously reduced. Due to the performance of aluminium alloy and the body structure can fully absorb the energy generated during the impact, reducing the damage to the car, and thus safer; at the same time, it can reduce the load of the power and power transmission system, so that the car in the lower traction load state shows the original or better performance.