What is a car rear panel
The tailboard at the back of a car body
The rear guard plate is a tailboard component at the rear of a car body. Some models adopt a V-shaped structure to optimize the force transmission path during collisions and enhance the protection capability of the battery pack. Its materials include stainless steel, carbon fiber, etc. The carbon fiber version combines high strength and lightweight characteristics. The surface is often formed into a three-dimensional relief with the brand logo through a pressing and grinding process. The production process includes metal sheet forming, edge sleeve rubber and marking processing. Some high-end models are equipped with aerodynamic kits to enhance handling performance.
This component needs to pass the anti-drill collision test. The IIHS test shows that the rear guard plate can effectively prevent the vehicle from drilling into the bottom of the truck in 100% overlap collisions, but there is still a risk of protective failure in partial overlap collisions. The manufacturer optimizes the strength of the support structure through special bracket design. For instance, the Manac brand guard plate maintains its effectiveness in a 30% overlap collision. The replacement cost is affected by the vehicle model, material and labor time. Professional installation usually takes 1 to 2 hours
The material is made of stainless steel. The stainless steel sheets are also cut into blocks according to a certain proportion of the vehicle model by a cutting machine, and then the edges and corners are ground flat by a punch press. After that, black rubber is placed over the edges and corners.
The rear panel of a car is located beneath the trunk. Its main function is to absorb the impact force in a collision accident and reduce the injury to the occupants.
Specific functions
The rear panel is made of stainless steel and processed through cutting, grinding and edge wrapping techniques. In the event of a car accident, it absorbs energy through deformation, reducing the risk of injury to occupants.
Materials and Structures
Youdaoplaceholder0 Material : Stainless steel sheets are cut and stamped into shape and then covered with black rubber, which takes into account both strength and safety.
Youdaoplaceholder0 structure : Composed of multiple combined components, it is not an integral body structure. After replacement, it has a relatively small impact on the depreciation of the vehicle.
The handling method for faults in the rear panel of a car should be based on the degree of damage to select a repair plan:
Minor injury
If the rear panel only undergoes deformation without involving cutting or welding, sheet metal repair (such as hammer shaping or bench repair) is usually adopted. Such repairs will not affect the vehicle's handling, but may impact the body strength.
Severe injury
If the rear panel needs to be replaced (such as by cutting or welding), it will be regarded as a major accident. Such repairs will result in the vehicle being defined as an "accident vehicle", which may depreciate by 5% to 10%. If the vehicle is planned to be sold in the near future, it is recommended to give priority to bodywork repair to avoid being classified as an accident vehicle.
Precautions
When the replacement of the rear panel involves cutting, the replacement of body structural components (such as brackets) can lead to the vehicle being defined as an accident vehicle, affecting the residual value of the used car.
After cutting and repair, it is necessary to reapply glue for reinforcement, but the process is complex and time-consuming.
The repair method for damaged rear panels of a car should be determined based on specific circumstances:
Selection of repair methods
If the rear panel is only slightly deformed, it can usually be restored to its original state by sheet metal repair (such as hammer shaping), without the need for cutting. If the deformation is severe and parts need to be replaced (such as cutting and replacing the bracket), it falls within the definition of an accident vehicle and may affect the vehicle's value retention.
Maintenance costs and impacts
The replacement of the rear panel involves processes such as cutting and welding, which takes a long time for maintenance and may lead to a decrease in the strength of the vehicle body. If only the bracket is cut and replaced, the vehicle will be defined as an accident vehicle, which may affect its subsequent resale value.
Precautions
When purchasing a second-hand car, it is important to pay close attention to the repair records of the rear panels. The marks of cutting and repair will affect the assessment of the vehicle's condition. In the event of a major accident (such as deformation of the vehicle body frame), the safety performance of the vehicle should be carefully considered.
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