6062 aluminum alloy sheet, strip coating, the surface is very smooth. Ready to start looking for a good center.
Started the first hole. You can use the cutting method, cutting down the aluminum block is not large, anyway, cnc machining, simply are hollowing out.
The first hole machining is completed. It takes approximately 4-5 minutes. Everything is in accordance with a pre-set program automatically. The whole process takes approximately 4-5 hours. Until this side completely finished processing.
Surface treatment, a total of seven steps. 1, the surface de-oxidation
2, the surface to the oil
3, the surface texture of the handle
4, the second to oil
5, anodizing
6, surface passivation
7, closed
The figure below the surface texture process ..........................