The inner lining function of the front fender of a car
The inner lining of the front fender of a car is a key component installed at the front wheels of the vehicle, mainly undertaking the following functions:
Protect the vehicle body and chassis
The inner lining of the front fender blocks foreign objects such as sand, gravel and mud from splashing onto the bottom of the vehicle, reducing damage and corrosion to the chassis, and at the same time protecting key components such as the engine from being impacted by stones. The fluid mechanics design also reduces the coefficient of wind resistance and enhances driving stability.
Improve driving performance
A well-designed front fender liner can optimize aerodynamics, reduce wind resistance during driving, and make the vehicle more stable and fuel-efficient. For instance, the front fender should reserve sufficient space for the front wheel steering to ensure steering flexibility and handling.
Reduce noise interference
The inner lining can block the noise generated by the friction between the tires and the ground, reduce the amount of noise entering the vehicle, and enhance the driving and riding comfort.
Extend the service life
By blocking foreign objects and optimizing airflow, the wear of the chassis is reduced, indirectly extending the overall service life of the vehicle.
The common materials for fender linings include three types: plastic, steel plate and aluminum alloy . Among them, plastic material is widely used in most vehicle models due to its lightweight, corrosion resistance and other properties.
Youdaoplaceholder0 Material types and characteristics of the inner lining of the fender
Youdaoplaceholder0 plastic material .
It dominates mainstream applications, specifically including thermoplastics such as PE, PVC, and PP (which can be repaired by welding), and has the following advantages:
- Lightweighting: Reduce the vehicle body weight and improve fuel economy.
- Corrosion resistance: Effectively resists erosion by mud, water, sand and gravel.
- Low cost: The processing technology is mature and suitable for the needs of most civilian vehicle models.
Youdaoplaceholder0 steel plate material .
It is mostly used in special vehicle models or scenarios with high protection requirements
- High strength: It can withstand greater impact force and is suitable for off-road vehicles or engineering vehicles.
- Heavy weight: It may affect the dynamic performance of the vehicle.
Youdaoplaceholder0 aluminium alloy material .
Commonly seen in high-end models or performance cars:
- Strength and lightweight balance: Ensuring protection while reducing weight.
- High cost: Mostly used for luxury brands or customized modifications.
Youdaoplaceholder0 Material selection is based on
Automobile manufacturers usually select materials comprehensively based on vehicle positioning, usage scenarios and cost control. For instance, family cars generally use plastic materials, while SUVs that emphasize off-road performance may partially use steel plates or aluminum alloys for enhanced protection.
The inner lining of the front wheel fender is damaged and needs to be replaced in time ; otherwise, it will cause problems such as increased driving noise, accumulation of mud and sand on the chassis and increased wind resistance. It is recommended to adopt a professional maintenance plan to ensure driving safety.
Youdaoplaceholder0 Maintenance steps and tool preparation
Youdaoplaceholder0 disassembly process .
Use a jack to align with the support points of the chassis to lift the vehicle and remove the tires (a torque wrench should be used in conjunction to ensure safety).
Remove the fixing screws and clips (usually a cross-head screwdriver or socket tool), take off the damaged inner lining and clean the mud and sand on the chassis.
Youdaoplaceholder0 install the new lining .
Align the new accessories with the original hole positions. First, fix the clips and then tighten the screws (check for any misalignment during assembly).
Tool list: jacks, torque wrenches, screwdriver sets, new linings and matching clips.
Youdaoplaceholder0 Professional maintenance necessity and cost reference
Operation threshold : It involves the lifting of the chassis and the installation of precision components. It is recommended to have it operated by a professional technician (self-repair may cause the snap to break or the sealing performance to decline).
Youdaoplaceholder0 Precautions and precautions
Regularly check the lower limit size. Slow down when driving on bumpy roads to prevent the tires from hitting the inner lining.
Avoid driving close to the roadside to prevent the inner lining from being scratched by the curb stones.
After replacement, test whether the steering interferes. If there is any abnormal friction sound, it needs to be repaired immediately.
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