The question of the restoration and repair of alloy wheels is not an easy one. They are much more resistant to mechanical damage than steel ones, but if they hit the curb or a “concrete policeman” at high speed, they can bend or partially collapse (for example, chips or cracks form). The degree of damage here, as elsewhere, depends on the speed, force of the impact and the place of its application.
Instructions
Step 1
Experts say that in most such cases, alloy wheels cannot be restored, although it can be said for sure only taking into account the degree and nature of the damage, and also depending on the method in which it is proposed to repair.
Step 2
Whichever method of restoration is proposed, it can be unequivocally stated that alloy wheels cannot be heated in any way - neither completely nor partially. Therefore, if, for example, you are offered argon welding, remember that at best you will restore the appearance of the disc, but not its suitability for further use. The fact is that the restoration of the original structure of the alloy in the conditions of any service center is almost impossible. This can only be done at the factory and after diagnostics by means of a research institute.
Step 3
This is also evidenced by the recommendations of the European Association of Wheel Rim Manufacturers, which state the absolute unacceptability of welding, heating, adding or removing materials for repair. The problem is that as a result of all these actions, the structure and characteristics of the alloy change, so the disc can no longer withstand the required loads. If it has undergone heat treatment, then it simply cannot be ridden.
Step 4
Another repair option that you may be offered is rolling or straightening. This is usually done in cases where the disc "hits" due to slight deformation. At the same time, tire shops use the same equipment as for rolling steel discs, but the craftsmen usually still strive to heat the deformed area with a blowtorch or something else.
Step 5
The only acceptable option in this case is to try to "knock out" the deformed parts of the rim, and then roll the disc without warming up. However, this is long and expensive, and not every master will undertake this. This only relatively safe repair option is relevant only in the simplest cases, when the disc, in principle, can not be straightened, and with more complex deformations, this method simply will not give the desired result.
