aluminum alloyhubCompared with steel rims, it has many excellent characteristics, such as: wheels of the same specification can reduce a lot of weight, have sufficient strength, not easy to corrode, simple die-casting process, can be designed into any shape to meet people's aesthetic requirements, etc.
theAluminum alloy wheelsIt is not only used for decoration, but also an important part that determines the safety of the car. It needs to have sufficient strength to withstand various loads generated when the car is running, so the material of the aluminum alloy wheel hub is relatively expensive.
The grinding and polishing process in the repair of aluminum alloy wheels includes shape modification: first, use an aluminum file or grinding head to trim the scratched parts of the wheel hub or the raised parts of the welded parts to make them shape, and check each curved surface with a curved ruler, and the error is less than 0.5MM.
Coarse grinding: Use 80-400 dry sandpaper for initial grinding on the surface in turn, and carefully polish the curved or irregular parts with cushion support sandpaper, slightly higher than the base surface as the fine grinding allowance, filling: check whether there are pores on the polished surface, Depression, filled with putty or aluminum putty.