Machining of copper and aluminum parts of earphones
1. The processing route of earphone metal fittings has great uncertainty. A component or product can have multiple processes, and the production process requires a wide variety of machinery and equipment and fixtures.

2. Hardware manufacturing enterprises are mainly scattered processing. The quality and production rate of headset products depend to a large extent on the technical level of workers, while the degree of automation is mainly at the unit level, such as CNC machine tools, flexible production systems, and so on.

3. Headphone parts and components generally adopt the method of combining self-made and outsourcing processing. For example, special processes such as electroplating, sandblasting, oxidation, silk screen laser engraving, etc. will be entrusted to external manufacturers for processing.
4. For the required earphone parts, there are often many picking lists and the "one-line" production list will be seen on the workshop site. If there is a process to handle, a lot of process transfer forms need to be filled in.