It depends on the difficulty of life. Normally, sheet metal will be repainted. Generally, both are counted together. For ordinary cars, taking the door as an example, the charge for small sheet metal and painting is around 400 yuan. Sheet metal operation flow: (1) Sheet metal disassembly. Remove the sheet metal parts of the damaged part of the collision vehicle from the original body by cutting. (2) Damage confirmation. After cleaning the damaged part, confirm the damage degree so as to establish the repair method. (3) Remove the old paint film. Grind the original car paint on the damaged part until the iron plate layer is exposed. (4) Leveling of sheet metal parts. According to the damage degree of sheet metal parts, use the corresponding sheet metal tools to flatten the concave parts. The surface of sheet metal parts should be fine-tuned to obtain flatness. (5) Fire extinguishing treatment. The tensile stress and extrusion stress produced in the process of restoring the original shape and thickness of metal are eliminated by fire extinguishing treatment, and the rigidity and strength of sheet metal parts are maintained. (6) Polishing burrs. A buffer slope is polished at the joint between the damaged part and the surrounding paint film, so that the newly sprayed paint surface can be better connected with the original car paint surface. (7) Apply epoxy primer. Clean and degrease the polished damaged surface again, coat with epoxy primer and dry for rust prevention. The above sheet metal operation flow is applicable to sheet metal parts with less damage. If the car body collides seriously and hurts the frame, it will be corrected on the frame straightening machine, which will be more difficult to operate.