What is a car RR bumper
Car front and rear bumpers
automobile RR bumper refers to the front and rear bumper of the automobile, its main function is to absorb and mitigate the external impact force, protect the body and occupant safety. The bumper is usually composed of three parts: outer plate, buffer material and beam .
The historical evolution of bumpers
Early car bumpers are mainly made of metal materials, such as U-shaped channel steel stamped into steel plates, riveted or welded together with the frame longitudinal beam, the appearance is not beautiful and there is a certain gap with the body. With the development of the automobile industry and the application of engineering plastics, modern automobile bumpers not only maintain the original protection function, but also pursue harmony and unity with the body shape, and achieve lightweight .
Bumper materials for different types of cars
car : The front and rear bumpers are usually made of plastic. This material can not only absorb the impact force, but also facilitate repair and replacement .
large truck : The rear bumper is mainly used to protect the rear of the vehicle to ensure the safety of the cargo .
Bumper maintenance and replacement
Bumpers usually need to be replaced after damage, and the exact cost will vary depending on the model and the degree of damage. In some cases, bumper repair can be done by simple repair, saving replacement costs .
In short, the automotive RR bumper is not only a safety device, but also continuously optimized in material and design with the development of technology to adapt to different use needs.
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