The lightweight of the car is to reduce the car's maintenance quality as much as possible while ensuring the strength and safety performance of the car, thereby improving the power of the car and reducing energy consumption. Compared with traditional cars, new energy passenger cars are more demanding for lighter weight. The production process, connection technology and economy of carbon fiber reinforced polymer matrix composites for new energy passenger car body are analyzed, and the future development trend of carbon fiber reinforced composite materials for body manufacturing is summarized.
Carbon fiber is generally combined with epoxy resin to form a composite material. This composite material inherits a series of advantages such as specific strength, specific modulus, fatigue strength and energy absorption and shock resistance of carbon fiber itself. At the same time, it inherits epoxy. Resin formula design is flexible and diverse, and the application is targeted. Compared with aluminum alloy structural parts, the weight reduction effect of carbon fiber composites can reach 20% to 40%. Compared with steel metal parts, the weight reduction effect of carbon fiber composite materials can reach 60% to 80%. Using carbon fiber composite materials Not only has it reduced the quality of the whole vehicle, but it has also affected and changed the automobile manufacturing process to some extent.
Carbon Fiber Reinforced Polymers (CFRP) refers to a material obtained by combining carbon fibers as a reinforcing phase with a thermoplastic or thermosetting resin material. The manufacturing technology of CFRP composites mainly includes prepreg and liquid forming processes.
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