It depends on the degree of deformation. If it's only a slight deformation, just correct it directly. If the deformation is very serious, it is necessary to cut off the whole girder and then weld a new girder. It should be noted that the stiffness of the car body will decrease after maintenance.

The cross beam of an automobile belongs to the body structure, and the body of an automobile consists of a cover and a frame.

The body panel includes front and rear bars, doors, hood, trunk lid and front fender.

After all the body panels are removed, all that remains is the body frame.

Because the roof and rear fender are connected to the body frame by welding, the roof and rear fender also belong to the body frame.

All parts of the frame are welded together, and some parts need to be cut and replaced after being damaged.

If the body frame of a car is damaged, then the car is an accident car.

When buying a used car, don't buy an accident car.

After the frame is repaired, the rigidity of the car body will be reduced. If there is a noise accident next time, the car can't protect the lives of the passengers inside.

Moreover, in the process of repair, due to the lack of accuracy, the car will run off after the body skeleton is repaired.

If your body frame is damaged, it is recommended to go to a very professional maintenance agency to repair the car.