It must be removed for maintenance. Repairing directly on the car body will have many unexpected consequences, such as welding, and strong current will easily lead to the damage of the computer board on the car, fire and rapid aging of other rubber parts.

As for the damage of the fender, it is mainly deformation and cracking. Let me introduce you to welding:

First of all, we should know what series aluminum-aluminum alloy automobile blades belong to, and we can weld them with welding wires with the same or similar alloy content. At present, there are 1-7 series of aluminum in the world. Generally, cars produced in Germany, the United States, Britain, Italy and other countries all use 6-series aluminum (aluminum-magnesium alloy), and the welding wire closest to 6-series aluminum is 5883, which can be bought on Taobao. After selecting the welding wire, you need an aluminum welding machine, which is generally sold in the market. Aluminum welding needs argon protection, otherwise, after welding. The welded magnesium-aluminum alloy body parts have good machinability, no cracks and high strength.