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                Automotive carbon fiber composite materials development trends and issues

                AddTime: 2013-01-23 View hits: Source: $Author:

                Carbon fiber composites are widely used in today's high-performance car bodies , there is no alternative materials to both high strength, high hardness , impact resistance, and light weight , corrosion resistance , long life ; automated processing technology to reduce the shop floor costs, improved laminate quality, improve production efficiency ; design and manufacture combined parts - reduce manufacturing costs ; thermoplastic research and development, aimed at reducing material costs and improving recyclability ; temperature curing / non- autoclave curing process development , aimed at reducing the dependence on the autoclave process , reducing manufacturing costs.
                Development of some of the problems
                Carbon fiber reinforced epoxy composites in the large commercial aircraft and high-performance cars and F1 racing main load-bearing structure on the successful application show that the composite material can replace the metal is used in automotive body structure.
                However, due to the current materials and process equipment is expensive, considering the current technology in automobile production chain and product chain , as well as reuse of recyclable materials and other issues, comprehensive consideration of costs and benefits , does not yet have the conditions for mass production , resulting in carbon fiber reinforced epoxy composites in the automotive structural parts on the application encounters significant limitations , which makes high-strength steel and aluminum is still the mainstream of automotive bearing structure material .
                As a completely new material different from metallic materials , composite materials, auto parts design involves structural design, overlay design and strength design and other aspects , it is inseparable from the large number of calculations and empirical data accumulation. To achieve composite scale production of automotive components , you also need to develop the appropriate variety of standards , including materials inspection and testing standards and production process norms.
                In the actual composite design process, the pros and cons should be based on the material properties for specific structural shapes , performance, cost requirements , begins early in the design process to make a specific proposal on the problems encountered , processing methods as possible detailed analysis and planning , which is designed to achieve a high level of composite structures is an important prerequisite .
                Therefore composite body structure is a very complex system engineering , at present, many foreign OEMs and Collaboration factory has built a complete system of composite materials technology and design system, by contrast , the domestic auto companies in this regard is still in a blank . With the application of composite materials in the automobile industry growing , the establishment of a professional R & D team and develop appropriate material specifications and process specifications has become a priority domestic automobile manufacturers .