Deformation repair: Under normal circumstances, the hub can be deformed, mostly due to careless driving and the impact of strong external force on the hub. Although the merchant has the means to repair the deformed wheel hub, it is not recommended for the owner to repair it himself. Why? Let's see how the deformation is corrected first. The first step is to detect the deformation position and find the deformation position of the hub. The master installed the wheel hub on the self-made fixture, and used the dial indicator to find the deformation position for calibration.

Step 2, heating: locally heat the deformed position with a blowtorch. The little red dot on the wheel hub is an infrared thermometer, which can stop heating when it reaches a certain temperature.

Step 3, correction: after reaching a certain temperature, the hub becomes soft, and the small hydraulic jack is used for repeated slight correction. Finally, reach a reasonable standard. The whole process seems to have no problem, but the problem has already appeared! As we know, the wheel hub is made of aluminum alloy, and its metal has poor fatigue resistance. After being deformed by external force, it is forcibly restored to its original state by external force. Even if there are tiny cracks on the surface, from a scientific point of view, the metal structure here is completely different from the normal hub.