REAR BUMPER.
Automobile bumper is a safety device that absorbs and slows down the external impact force and protects the front and back of the body. Many years ago, the front and rear bumpers of the car were pressed into channel steel with steel plates, riveted or welded together with the longitudinal beam of the frame, and there was a large gap with the body, which looked very unattractive. With the development of the automotive industry and the large number of applications of engineering plastics in the automotive industry, car bumpers, as an important safety device, have also moved towards the road of innovation. Today's car front and rear bumpers in addition to maintaining the original protection function, but also the pursuit of harmony and unity with the body shape, the pursuit of its own lightweight. The front and rear bumpers of cars are made of plastic, and people call them plastic bumpers. The plastic bumper of a general car is composed of three parts: an outer plate, a buffer material and a beam. The outer plate and buffer material are made of plastic, and the beam is made of cold rolled sheet and stamped into a U-shaped groove; The outer plate and cushioning material are attached to the beam.
Which part of the back bumper is the skin
Car paint on rear bumper surface
rear bumper leather refers to car paint on the surface of the rear bumper. Rear bumper skin and rear bumper is actually a component, mainly used to absorb and slow down the external impact force, to achieve the role of protecting the body. Car bumpers can play a role in ensuring pedestrian safety in the event of a collision. In the material of the bumper, the outer plate and cushion material are usually made of plastic, and the bumper leather refers to the car paint on the surface of these plastic parts.
Structure and function of rear bumper
Structure composition: The rear bumper is mainly composed of three parts: the outer plate, the buffer material and the beam. Among them, the outer plate and buffer material are usually made of plastic, while the beam is stamped with cold-rolled sheet into a U-shaped groove, and the outer plate and buffer material are attached to the beam.
Function: The main function of the rear bumper is to absorb and slow down the external impact force, protect the front and back of the body, and pursue harmony and unity with the body shape to achieve lightweight.
The difference between rear bumper leather and bumper
Rear bumper skin: refers to the paint on the surface of the rear bumper, which is the exterior part of the bumper.
Rear bumper: refers to the entire bumper component, including the outer plate, buffer material and beam, which is a safety device that absorbs and slows down the external impact force.
Material for the rear bumper
Material: The exterior plate and cushioning material of the rear bumper are usually made of plastic, which is lightweight and has a certain cushioning capacity, which can reduce the weight of the vehicle and reduce fuel consumption.
Advantages: The use of plastic materials can reduce manufacturing costs, while facilitating repair and replacement, because plastic parts are usually simpler to repair than metal parts.
To sum up, the rear bumper skin is the paint on the rear bumper surface, and the rear bumper is the safety device that absorbs the impact. These two work together to protect the safety of the vehicle and its passengers.
The rear bumper is located below the taillights and serves as a key beam. Its main function is to absorb and mitigate the impact force from the outside, thus providing protection for the body. This design can not only protect pedestrians in the event of a collision, but also reduce the injury to drivers and passengers in high-speed crashes.
Bumpers, this body part is also a wearing part, can be found on the front and back ends of the car, respectively called the front bumper and the rear bumper. In daily driving, the bumper is often prone to scratches due to its prominent position, so it has become a part that needs frequent maintenance.
In the construction of the bumper, the outer plate and buffer material are made of plastic, while the beam is made of cold-rolled sheet about 1.5 mm thick, stamped into a U-shape. The plastic part is tightly attached to the beam, which is attached to the frame rail by screws for easy removal. This plastic bumper is mainly made of two materials, polyester and polypropylene, and is made by injection molding.
In the field of car modification, changes to the bumper are also common practice. Some owners will choose to install additional bumpers on the front and rear bumpers, this small change is not only low cost, technical content is not high, suitable for refitting novices. At the same time, it can also improve the safety and appearance of the vehicle to a certain extent.
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