The lower part of the fender of a car is called a bumper. Automobile blades are made of plastic, steel and aluminum alloy. Fender, also known as fender, is divided into front fender and rear fender according to the installation position. Refers to a kind of covering on motor vehicles and non-motor vehicles.

Composition of bumper:

Plastic bumper is composed of three parts: outer plate, cushioning material and cross beam. Among them, the outer plate and buffer material are plastic, and the cross beam is stamped into a U-shaped groove from a cold-rolled plate with a thickness of about 1.5mm; The outer plate and cushioning material are attached to the cross beam, which is connected with the longitudinal beam of the frame by screws and can be disassembled at any time. This kind of plastic bumper is usually made of polyester and polypropylene by injection molding.

Bumper function:

Car bumpers (anti-collision beams) are located in most areas before and after the car to avoid the influence of external damage on the car safety system. They have the ability to reduce the injuries of drivers and passengers in high-speed collisions, and now more and more are to protect pedestrians.

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