Coarse milling inner cavity: The contour shape of the inner cavity of the rough milling mobile phone is processed with the inner cavity and the positioning column combined with the fixture, which is very important for subsequent processing links.

Milling antenna groove: Metal aluminum can be shielded (weakened) mobile phone radio frequency signals, so you must go through a groove method to allow the signal to have a way to get in and out. Therefore, the milling slot is the most important and difficult step. The antenna groove must be railled evenly, and the necessary link points must be maintained to ensure the strength and overall sense of the metal shell.

Essential milling arc: The 3D shaping of the metal aluminum alloy body is usually used to mill the curved surface with CNC processing center, which is also the most time -consuming process.

Square milling side: The 3D curved surface of the metal body is bened out by CNC, but there is still a circle of redundancy at the edge, so the sperm milling side process needs to be seen, and then the prototype of the metal shell can be seen.

Polishing: Use high-speed precision CNC machine tools, but can only meet A1-A2 smoothness. To meet the needs of subsequent processing, it is necessary to polish it to A0-level smoothness, which can be mirror effect.

Highlight: Use a high -level ultra -high -speed CNC machine tool to cut the corners. This process is also called drilling or highlight treatment.

Essence milling inner cavity: After the aluminum alloy is processed by multiple steps, the metal shell has been formed, and then remove the excess materials such as the positioning column of the fixture lock, so that the metal shell is completely tidy.

Milling potential: The conductive effect of the aluminum alloy shell after anode oxidation will deteriorate, so it is necessary to remove the local anode oxide film to expose the metal to achieve a good grounding effect. Essence

Polishing: Polishing refers to the use of mechanical, chemical or electrochemical to reduce the surface roughness of the workpiece to obtain the light and flat surface processing method. The conventional polishing process is mechanical polishing and chemical polishing. The use of high -speed precision CNC machine tools for mechanical polishing, eliminating knife patterns, and preparing for subsequent sand spraying.