How hard is it to apply carbon fiber composite materials to the automobile manufacturing industry?

With the increasing demand for energy saving, emission reduction and the application of new energy vehicles, carbon fiber composite materials have gradually been tried and applied in the application of traditional vehicles and new energy vehicles. Carbon fiber composite materials were first used in high-end sports cars and luxury car models in the automotive field. Since BMW took the lead in applying carbon fiber composite materials to mass-produced models such as i3 and i8, global automotive design and manufacturing have set off a wave of research and application of carbon fiber composite materials.

   Carbon fiber is used in automobile manufacturing, which can reduce the weight by 40% -50% compared with the traditional steel structure,   and 20% -30% by weight compared with the  aluminum structure. This is  still more useful  in energy saving,  emission reduction and improving the endurance. The strength and modulus of carbon fiber composite materials are  several times higher than that of metal materials, and the     impact resistance and energy absorption performance are better, which can greatly improve the safety factor of automobiles.

    Carbon fiber composite materials are used in the  manufacture  of automobile  body structures. They can be integrally formed to reduce the number of parts,  which not only  reduces the weight, but also   improves the structural  stability of the car body. The stability and comfort of the car; in   addition, the carbon fiber composite material has   good corrosion resistance and fatigue resistance,  which is very  beneficial to the service life of the car.

 Since carbon fiber composite materials have so many advantages in automobile manufacturing, is it difficult to promote their application in automobiles? What exactly has   influenced the advancement of carbon fiber composite materials in automobile manufacturing?

  One of the reasons is the price problem. The high price of   carbon fiber is well known to those in the industry. One kilogram of steel is only 6-8 yuan, but one kilogram of carbon fiber composite material can reach 200 yuan. Such a large price gap is enough to stop the step of carbon fiber applied on automobile manufacturing.Secondly, there is the problem of mass production. Carbon fiber composite materials are difficult to mass production due to technical and process limitations. Traditional metal materials have very mature production process templates, but carbon fiber does not. Its specificity is relatively high, To achieve the most Good performance also requires reasonable design and calculation, which is difficult to achieve mass production with current technology.

 Finally, there is the problem of parts replacement. If the car collides or scratches, traditional metal car parts can be repaired or replaced with new metal parts, which is convenient and low cost. Once the carbon fiber car parts are damaged, they can only be replaced, cannot be repaired, and recycled It is very difficult to get up and difficult to reuse. China, as the world's largest automobile production and sales country, has never stopped the research of carbon fiber composite materials in the automobile industry, but there are still very few models that have mass production.

As far as the current situation is concerned, it is still difficult to apply carbon fiber composite materials to the automobile manufacturing industry. Only part of the carbon fiber auto parts that can be mass-produced, such as carbon fiber car doors, carbon fiber car seats, carbon fiber rear view mirror shells, etc., It is still difficult to apply carbon fiber composite materials for large-scale production of large vehicles. However, the application research of carbon fiber composite materials in the automotive industry can also be regarded as a good foundation for future large-scale use.