Lightweighting for passenger cars and commercial vehicles

Lightweighting is not only required for passenger cars, but also for commercial vehicles. Lightweighting aluminum alloy can improve fuel economy and increase the quality of the load, and commercial vehicles have the same obvious effect as passenger cars. At the same time, with the expansion of the scope of the weight charge and rising fuel prices, truck users want to carry more, but also to fuel consumption less of the call is increasingly high, the major truck enterprises are also concentrating on truck lightweight research and development.

There are a lot of ways to choose for vehicle lightweighting, but the most direct and effective method is the application of new lightweight materials, the use of low density, high strength lightweight materials, such as aluminum, magnesium alloy, plastic polymer materials, ceramic materials, etc.; the use of the same density, the same elastic modulus and process performance of thin section thickness of high strength steel; the use of new material processing technology based on lightweight structure with materials, such as continuous extrusion The use of new material processing technologies for lightweight structures, such as continuous extrusion, metal matrix composites, laser-welded plates, etc.

Among them, the serialisation of high-strength aluminium alloys is at a high level of commercialisation. For example, the all-aluminium A8 car produced by Audi uses an aluminium alloy extruded frame, which reduces the quality by 35% and increases the torsional strength by 50%.