Automotive industry is booming, at the same time, due to environmental protection and energy saving , car -light-weighting has become the very trend in global automobile industry. Research shows that in 2020 the demand for automotive aluminum will be  about 5.3 million -5.9 million tons, lightweight aluminum market will be promising.

Aluminum is of good mechanical properties and good thermal conductivity.Its  density is of only 1/3 of steel’s density , mechanical processing performance than iron 4.5 times. Aluminum to now is the  ideal   material for vehicle lightweight . Aluminum alloy can reduce the weight of the vehicle by10%,.With decrease of the car weight in 100 kg, driving for 100 km, fuel consumption can be reduced by 0.4 liters, and carbon dioxide emissions can be reduced by 1 kg, fuel efficiency will be increased by 6% -8%.

Aluminum alloy automobile can decrease the automobile’s weight but it will not axe its capacity. With a lower automobile body gravity center, More stably  and comfortably, you can drive the automobile. Because of the good energy absorption of aluminum, there is a clear advantage in the safety of the collision, the deformation of the front of the car in the collision will produce wrinkles, the automobile can absorb a lot of the impact, this will protect the  driver and passengers.

Aluminum is of  good corrosion resistance, the reason is that the oxide film in its surface is corrosion resistant. During the cycle process, the loss of aluminum is only about 5%, which means its regeneration performance is better than  all the other base metals.. in terms if durability, "aluminum body" is superior than the traditional “steel body”.  

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