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Precision turning of earphone metal fittings
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.
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.
Machining of earphone accessories
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choice of tools for CNC turning small precision parts
The commonly used CNC turning tools are generally divided into three categories: forming tools, pointed tools, arc tools and three types. Forming turning tools are also called prototype turning tools. The contour shape of the processed parts is completely determined by the shape and size of the turning tool blade. In CNC turning processing, common forming turning tools include small radius arc turning tools, non-rectangular turning tools and thread tools.
CNC lathe parts processed by milling and cutting
Processing features: side milling, slotting on the shaft surface. For the two parts, four cylinders protruding longitudinally on the shaft surface are milled on the side, and curved grooves on the shaft surface are milled on the side. CNC lathe processing with power tool head, the tiny milling blade mills out flats or grooves of various sizes.
The two products on the left are made of brass. Nickel-plated connector parts are the connectors of data network cables, and the connection plugs of computers or video equipment are common. The outer diameter is 16mm and the length is 25mm. The other copper part is the copper valve core of the flow control valve, with a maximum diameter of 11mm and a total length of 30mm.
Precision turning process of large threaded shaft
Ordinary lathes sometimes experience bed saddle vibration when turning large-pitch threads forcefully. Lighter ones will cause ripples on the machined surface, and severer ones will break the knife. When cutting off, there are often knife sticking or broken tools. There are many reasons for the above problems. This phenomenon and its solution are mainly discussed through the analysis of the force of the turning tool.
Turning and finishing 6061, 6063, 7075 aluminum alloy parts
This is a small aluminum part like a bowl, which is also turned by an automatic lathe. Its size is very small, the outer diameter is only 6MM, obviously not for eating.
The material grades currently available for aluminum turning parts are: T6 6061, 6063 duralumin, 7075 cutting duralumin, and 5056 ordinary aluminum rod.
By the way, 2021 aluminum rod, a kind of aluminum with relatively low hardness and relatively poor mechanical properties, is generally not recommended for customers to use this material.
turning precision parts of different materials
Different turning materials (aluminum alloy, stainless steel, copper, titanium alloy) have different error compensation settings. Modern machinery manufacturing technology is developing in the direction of high efficiency, high quality, high precision, high integration and high intelligence. Precision and ultra-precision processing technology has become the most important component and development direction of modern machinery manufacturing, and it has become a key technology to improve international competitiveness. With the wide application of precision machining, turning machining errors have become a hot topic of research. Since the thermal error and geometric error occupies the vast majority of the various errors of the machine tool, reducing these two errors, especially the thermal error, has become the main goal.