The future of the car's first mass-produced pure electric super-running K50 will be officially listed on the future at the Suzhou base on August 8. The new car is powered by pure electric power, with a maximum power of 320kW, a speed of only 4.6s per 100km and a cruising range of 380km. The body uses a large number of lightweight materials such as carbon fiber and aluminum alloy. There are 29 carbon fiber composite parts in the whole car. The total weight of these parts is only 46.7kg.
As a domestic electric super-run, the lightweight design of the future K50 is quite eye-catching. In order to improve the performance of the car body, the body adopts an aluminum alloy frame structure, and the body cover is made of carbon fiber composite material. The all-aluminum frame body weighs only 234kg, which is about 38% less than the traditional sheet metal steel body. Its innovative structural design has sufficient torsional stiffness and bending stiffness while reducing weight. The total weight of the 29 carbon fiber composite outer covers of the whole car is only 46.7kg, which is more than 40% less than the traditional steel plate material, and the weight loss of the aluminum alloy material is more than 20%.
In addition, the new car is made of carbon fiber, leather and Alcantara in the interior. It guarantees the material strength while taking into account the luxurious texture and comfort of the exterior. The seat adopts one-time aluminum-magnesium alloy skeleton and leather and Alcantara stitching. Material.
From the perspective of manufacturing process, the promising automobile uses carbon fiber materials on a large scale, and innovatively adopts high-temperature rapid prepreg compression molding process, which is difficult to start from the basic process, and maximizes the lightweight effect while improving production efficiency. China's first all-aluminum frame body production line, after repeated exploration, in the role of aluminum alloy lightweight easy to form, but also solve the industrial problem of aluminum alloy welding thermal deformation.
According to relevant media reports, the future automobile production base in Suzhou has China's first carbon fiber auto parts production line and China's first all-aluminum frame body production line, and has independently built a battery system production line. The future automobile production base in Suzhou follows the strictest environmental protection. The standard is the first vehicle production base that has been strictly followed by the Taihu Lake Basin Management Regulations. It achieves zero discharge of wastewater and implements more stringent emission standards than national standards, and integrates the green manufacturing concept into the entire production chain.
It is understood that the new materials and processes applied to the new future K50 will also be applied to other production models of the future.
The carbon fiber material used in the large-scale use of this future car has become a highlight of the new car. The carbon fiber material is completely called Carbon Fibre-reinforced Polymer (CFRP), mainly made of carbon fiber or carbon fiber fabric, with resin. , ceramic, metal, cement, carbon or rubber for matrix composite formation. As the most ideal non-metallic material for automotive panels, CFRP composite strength is 10 times that of common steel, but the weight is only half of steel, lighter than aluminum alloy 30%, at the same time, it has the characteristics of light weight, high elasticity, corrosion resistance and firmness.
Because the carbon fiber manufacturing process requires a lot of electricity, it is very costly. It was mainly used in the aerospace field in the early days. Due to the excellent lightweight performance of the CFRP skeleton, many car manufacturers are now using this material in automotive production. It is BMW that leads the world in this field of application.
The K50 is the first mass-produced pure electric super-runner of the future. It is similar to a large number of carbon fiber materials. Earlier, BMW's first sports car i8 integrated BMW high-efficiency power strategy technology in the new energy field perfectly combined strong power with low-carbon energy. The use of a large number of lightweight carbon fiber materials has completely subverted the traditional automobile manufacturing technology, bringing unprecedented innovation to the global automotive industry.
The BMW i8 has been defined since its inception as a plug-in hybrid sports car with dynamic driving performance and perfect energy efficiency. BMW has accumulated i3's rich R&D and production experience in the early stage. Exploring the cost reduction and efficiency, a large number of CFRP composite materials BMW is applied to the i8 body, so that the weight of the whole vehicle is only 1540 kg.
summary:
New energy is the trend of future automobile development. The German luxury car brand represented by BMW breaks through the tradition and introduces a new concept of automobile design. The carbon fiber body material originally applied to F1 racing cars is applied to civilian vehicles, and the consumption of vehicles is reduced. This has played a huge role in energy saving. This time, the new future K50 uses the aluminum alloy frame structure, and the large-scale use of carbon fiber materials, can its innovative technology be as good as BMW's lightweight and body strength? Will the cost and difficulty of vehicle after-sales maintenance be affected? How is the actual experience of the driver and passengers? It remains to be seen.