There are six ways to repair automobile sheet metal, do the sheet metal will definitely rust?

Usually in the car can not be avoided when there will be a collision, if only a small dent many car owners will choose to carry out sheet metal repair processing. Sheet metal repair is a high technical requirements of the repair method, the Internet rumor car sheet metal repair method has six kinds? The following is to introduce you to the common sheet metal repair methods.

Car sheet metal repair methods have six?

There are only five common sheet metal repair methods, which are explained below.

1, pleating method. Folding method is mainly used to repair the stretching deformation of the place, construction in the stretching deformation of the place to make some folds, pleated place will be slightly lower than the rest, with putty filler with a file after sanding smooth and then spray paint;

2, heating contraction method. The parts of the sheet metal to be heated, the temperature rises when the steel plate will expand to both sides of the perimeter of the stress. When the temperature continues to rise until the metal becomes soft, the surrounding steel plate will resume deformation. For the middle position of the steel plate can be sprayed with water to reduce the temperature.

3. Stretching repair method. Adsorption of the stretching device in the depressed position, followed by force to pull out the depressed position. Can also be in the depressed part of the spot welding with a pin instead of screwing into the screw, to be pulled out and then cut with a knife to remove the weld, so as to maintain the integrity of the metal surface.

4, pry top repair method. With a leveling knife, pointed tool pry the top of the depression, so that the depression gradually restore the original shape.

5, knocking repair method. For a small range of localized bumps, depressions can be repaired by knocking away a single, small shallow bumps and dents, so that the metal to produce ductile deformation and return to the original shape.

Does sheet metal always rust?

Not necessarily rust. If you have applied antirust paint during the sheet metal work, the vehicle will not rust. If you don't have rustproof treatment after the sheet metal, then it is very likely that rust will occur. Sheet metal parts rust generally from the inside out rust, because the original antirust coating has been destroyed, rust is unavoidable.

Do I use a touch-up paint pen to prevent rust after sheet metal?

Paint refinishing pen as a car scratch repair tool, according to the car paint color to choose the right model, small scratches or paint flaking coated with paint refinishing pen can repair, cover and fill in the scars. Patch paint to fill the gap, blocking the contact between air and the surface of the car body, there is a certain anti-rust effect. However, it is still recommended to do spray paint processing, filler paint pen to fill the paint for a long time, broken surface paint surface, will then fall off, want to have a better rust effect, go to do spray paint processing it.