
Here are the methods for repairing car wheel hubs: 1. Scratches on the wheel hub edge: In this case, professional welding technology can perfectly repair and refurbish the hub. 2. Damage to the wheel hub edge: If the car's wheel hub is accidentally hit by a hard object, it may cause the edge to break. In such a situation, the car tire must be replaced, but the wheel hub can still be perfectly repaired and refurbished through welding and reshaping. 3. Gaps on the wheel hub edge: When a hard wheel hub is violently struck by stones or other hard objects, it may cause gaps on the edge. Depending on the shape of the gap, it can be perfectly repaired through buildup welding, airtightness testing, and surface treatment. 4. Wheel hub fracture: For fractured parts of the car wheel hub, even small cracks should never be ignored as they pose serious safety hazards. The hub can be refurbished through procedures like crack welding, polishing, and painting.

A few days ago, I scraped a groove on my wheel rim and did some DIY repairs. First, I removed the wheel and thoroughly cleaned it to remove grease and dust. Then, I sanded the damaged area with sandpaper—starting with fine grit for minor scratches to avoid worsening the damage. For deeper dents, I carefully filled them with alloy putty, smoothed it out, and let it dry for a few hours. After that, I sanded it smooth again and sprayed primer to enhance adhesion. Finally, I applied a paint layer matching the original factory color, ensuring even coverage to avoid drips. The whole process requires patience and attention to detail—don’t rush, or the paint may bubble or discolor, looking unsightly. If the rim is severely bent or deformed, don’t force it; a professional shop has the tools to straighten it more safely. This repair costs just a few dozen bucks in materials, saving a lot compared to buying a new wheel. With proper maintenance, it can also extend the rim’s lifespan, giving you peace of mind on the road.

Ignoring wheel damage poses serious risks. I've seen a friend's wheel deform, leading to unstable tire pressure, vibrations at high speeds affecting control, and even blowouts. For safety, inspect any impact damage immediately: minor scratches can be cleaned and touched up with paint yourself, but deep dents or cracks require professional repair—don't attempt DIY fixes. Whenever I repair wheels, I ensure they're perfectly balanced to prevent future issues. For prevention, park a bit farther from curbs to reduce scrapes. Overall, don't delay repairs to save money—timely fixes are crucial for driving safety.

As a car novice, I tried DIY repair for minor wheel scratches. Bought a repair kit containing sandpaper, putty, and spray paint. First, cleaned the wheel surface and gently sanded the uneven areas with sandpaper—a bit laborious but manageable. Applying putty required patience to scrape it smooth, otherwise the result would be poor. Spray painting was done in two light coats; the first attempt wrinkled due to poor application, but the second try the next day turned out better. Took two hours to complete, saving dozens of yuan. The process is simple, recommended for beginners with minor damage to try, but for complex issues, it's better to consult professionals.


