With the rapid development of global economy and manufacturing industry, the sharp increase of population, the global environmental pollution is becoming more and more serious, and the energy crisis is becoming more and more obvious. For this reason, China has put forward the concept of energy conservation, emission reduction and environmental protection. Then, as a fuel consuming and polluting automobile industry, how to respond to this idea?
Energy saving and emission reduction can be said to be the focus of the future development of the automotive industry. In order to reduce pollution and protect the environment, the automotive industry is actively looking for countermeasures, and the research and development of new energy electric vehicles has played a great role. What about energy conservation and emission reduction? Studies have shown that the vehicle weight is reduced by 10%, the fuel efficiency can be increased by 6% - 8%, and the vehicle weight is reduced by 100kg, the fuel consumption can be reduced by 0.5l/100km, so the lightweight of the vehicle can be said to be the key to solve the problem.
The lightweight of automobile means that under the premise of the safety performance and strength of automobile, the manufacturer of water cutting machine reduces the overall quality of automobile as much as possible, so as to improve the power performance of automobile and achieve the purpose of reducing consumption and emission reduction. There are three methods of automobile lightweight: structure optimization design, lightweight new materials and lightweight forming manufacturing process. Among them, the effect of new materials and new processes is more significant. At present, the most widely used automobile lightweight materials are magnesium alloy, aluminum alloy, high strength steel and carbon fiber. Carbon fiber has low density, high specific strength, high specific modulus, good fatigue resistance and corrosion resistance It can reduce the weight and fuel consumption, and make the car lighter and more dexterous. Carbon fiber is widely used in automobile body, interior and exterior trim, chassis and hub.
The carbon fiber material that can make the car lightweight has been found, how to cut and use it is a big problem? Carbon fiber is a new type of inorganic high-performance fiber with high strength, which is made of organic fiber after a series of heat treatment and contains more than 90% carbon. At present, the main cutting methods are high-speed milling and water jet cutting. Although the cutting tool wear in the milling process is not reliable, it will cause the surface quality problems. When using laser cutting, when the fiber volume content in the cutting area is high, there is epoxy resin delamination in the laser beam inlet and outlet area; when the fiber volume content in the cutting area is low, cracks will appear in the epoxy resin layer between the two layers of fibers, and these cracks will significantly reduce the fatigue strength of carbon fiber materials, which is unacceptable for structural parts Yes. The ultra-high pressure water cutting machine adopts the cold cutting process, which does not produce thermal deformation or thermal effect; the incision is smooth, no slag, no secondary processing; no need to change the cutting tool and low processing cost, so water cutting to cut carbon fiber materials just solves the problems caused by traditional cutting.
