Advantages of composites on vehicles
The density of most resin composites is within 2g/cm3. The reduction of car weight improves fuel efficiency. Statistics show that every 100kg weight reduction saves 0.7L fuel per 110km.
The curing of composites is after shaping. The shaping of curve components is usually hard for metals due to the thickness. But when it comes to composite, the problem will resolve. It is also more reasonable in both aerodynamics and aesthetics.
Short developing time:
The preparation of the composite material and the forming of its final product are almost simultaneous. The reasonable design fits the composites into an integrated forming process. Although the components differ in various thicknesses and shapes, they can be formed together at the same time. For metal parts, this is almost impossible, not to say efficiency and accuracy. Take the Boolean-bart for example, to complete its front panel if using steel, it needs more than 20 components. What if composite panels? Only 7! It is reported that, for 20000/a output, the preparing time of metal is 15 months, but composites only 6 months! According to Ford’s research, a composite car consumes 20% fewer components than a metal one and costs 60% less in processing and 25% to 40% less in part connecting (metal parts have to connect by welding).
Due to the inherent structure of the composite itself, it has a large coefficient of vibration attenuation. In case of a crash, the composite can absorb a large amount of energy and keep the passengers safe.
Corrosion and chemical resistance:
Many parts of vehicles are demanded to be resistant to petroleum and diesel, gasoline and engine oil, transmission fluid, and other types of oils. It’s even necessary for some to withstand extreme weather like hot, cold, and salt atmosphere. In contrast with metals, composites are much easier to survive in such conditions and keep high performance.
Small input and easy update:
The modern vehicle industry is updating rapidly. It’s hard for metal factories to keep up with the pace due to their fixed amount of equipment and models. The quick processing and model-shifting of composites, on the contrary, enable a small input to meet the changing market.