Metal frame is cut from a large metal plate, through CNC cutting machine
Continue using the drill to create holes and grooves on the chassis
The chassis is the first thing to be done and requires high accuracy before moving to the component and screen mounting stage
The Galaxy Alpha staining process is called Color Anodizing with 5 finished colors including Blue, Yellow, Black, White and Silver.Samsung did not say exactly what material the Galaxy Alpha shell was made of, but through Color Anodizing it was probably guessed that it was just aluminum.Magnesium and Titanium can also be Color Anodizing but very expensive.Iron and steel cannot do it.
The different tones are tested by Samsung with the Galaxy Alpha case