Nothing so does not upset the car enthusiast, like a dent on a brand new shiny car body. And to get this trouble is easy. For example, during an unsuccessful parking or simply hitting an accident. And it is possible and generally, having woken up in the morning and leaving on the street to the car, contemplate dents on its case. However, some drivers do not pay attention to such damage. As they say: "Rihtovka is time, money, but the car drives, does not affect the speed, well, okay." "Ok", this is when the dent is small and the paintwork has not been damaged. In another case, such negligence will lead to the appearance of rust, corrosion, and in the future the whole body of the car can come to complete disrepair. Therefore, it is better, without delay, to repair dents in order to avoid further problems.
Basic concepts of straightening works
It should be noted right away that it is not easy to straighten the damage on the bodywork yourself. First, you need to have a certain set of knowledge, how it's done. Secondly, you need practical experience of these works, and, thirdly, quality straightening - this is extremely carefully done work on body repair. In another case, instead of fixing a small dent on the wing, you can get a deformation of most of its surface, and then it will be easier to replace it, rather than repair, which will cost quite different money. Based on the size and complexity of the damage, there is a different way of correcting them. For example, if the damage is small, fix it from the middle, and then bring the edges. If it is required to repair dents of a larger scale, then they begin to equalize, on the contrary, from the edges and gradually reduce to the middle. With a large deformation and a slight damage to the paint coating, some specialists heat the metal before straightening. But without experience, this is not recommended, because the metal can be overheated, because of what it will lose its properties or even melt.
The necessary set of tools for straightening
To conduct bodywork of any complexity, you will need a special tool for straightening the body of the car.
Set of hammers:
- With a flat striker;
- With a thin pointwise striker;
- With a round striker;
- With special incisions;
- smoothing.
In addition to hammers, spot welding of the body will require a spore, still need special straightening files, straightening hooks and support elements in the form of small anvils.
It is clear that this list is far from complete. In various cases, additional sets of tools and devices may be required, for example, hydraulics for straightening, etc. The above list of tools can be considered the basic set that every motorist should have, who prefer to repair his car whenever possible.
Body straightening by vacuum method
A dozen and a half years ago such a thing as vacuum straightening could look like a section of science fiction. In those days, all the straightening work was done manually, and after them the body was ground, primed and painted. Now, thanks to the appearance of special devices equipped with a vacuum sucker, this simple and convenient method has become a reality. It is very easy to rally a car in this way. In the center of the dent the sucker is fixed and with a slight movement of the hand it stretches out. The advantage of this method is that the car paintwork is not damaged. This straightening is an advantage compared to other ways of repairing dents, because there is no need to disassemble the body to gain access to the inside of the damaged part. This method can easily be applied to the entire surface of the car. Unfortunately, it is impossible to completely get rid of the dent in this way, but the absolute effect of its absence is visually obtained. Very fine shallow large dents with a smooth geometry. It is not desirable to apply this method in the event that dents with chips and cracks, even if they are small. Simply in this case, the surface is deformed even more, and additional costs for their correction will be needed.
Drawing a dent by hooking
This method is more laborious, in comparison with the previous one. It is applied already at more significant damages of a surface of a body. Such a straightening can be done in two ways. The first way, it can still be called "barbaric" - is when the car body is screwed into the carving, and with the help of an inertial hammer, the dent is stretched. After removing the dent, the hole from the self-tapping shpaklyuetsya, and the surface is ground, ground and dyed. The second option, when instead of the self-tapping to the problem points, a piece of thin wire is welded in a dotted manner and also draws a dent with it. After completion, the surface is also ground, polished and painted.
Straightening
The best quality straightening is just the method of repairing the body by tapping. This method is even more complicated than straightening by stretching. The car body is dismantled. The damaged part is removed, the dent area is marked on the underside, and its area is neatly leveled by a slight tapping of the malleus. On the outside, it is necessary to put an emphasis, or better - a special anvil. In some cases, the metal in the dent zone is advisable to warm up, making it softer and more pliable. The huge advantage of this type of straightening is that you can fix almost any dent, crack and other damage. And the correction will not only be visual, but until the dent is completely eliminated. But there is a big minus. In order for such work to be carried out really qualitatively, a very large practical experience is required, and a novice, no matter how hard he tries, such work is beyond his power.
Surface protection
After the defect of the body is drawn and brought to its original appearance, in order to avoid rust and corrosion, as a result of which the body can become unusable, the repaired surface must be protected from the environment. For this, the surface is ground with a thin sandpaper, or better - with a grinding wheel. Then the scraped surface shpaklyuetsya, after the drying putty, the surface is primed and finally dyed.