In the ceramic industry, precision ceramic materials have different processing methods according to different performance requirements. At present, the main addition methods include mechanical processing, electrical processing, ultrasonic processing, laser processing and composite processing. The following briefly introduces the machining method of Dongguan precision ceramics. Machining of ceramic materials | Ceramic precision machining
Machining of ceramic materials mainly includes turning processing, grinding processing, drilling processing, grinding and polishing.
Turning of ceramic materials
The cutting process is mainly to cut ceramic materials with high hardness and high wear resistance with diamond tools. Polycrystalline diamond tool is difficult to produce smooth cutting edge, generally only used for roughing; When finishing the ceramic material, the natural single crystal diamond tool is used, and the micro-cutting method is adopted during the cutting. Because the hardness and brittleness of ceramic materials are very large, it is difficult to ensure the accuracy requirements of turning processing, so the application of turning processing is not much, and basically it is still in the research stage.
< br> Grinding of ceramic materials
Grinding of ceramic materials is one of the most widely used machining methods. The grinding wheel used for grinding is generally a diamond wheel. Different scholars have different explanations for the grinding mechanism of diamond wheel, but in general, there is one thing in common, that is, brittle fracture is the main reason for the removal of formed materials. In grinding processing, the removal of chips is a big problem, and it is generally cleaned with cooling working fluid. The coolant not only plays the role of washing the chip powder, but also reduces the temperature of the grinding zone, improves the grinding quality, and reduces the thermal decomposition of the binder around the grinding particle. Grinding fluids with good cleaning performance and low viscosity are generally selected. Diamond grinding wheel has different grinding characteristics because of the different types of selected bond and the different particle concentration. Diamond particle size is another main reason that affects the surface quality of ceramic workpiece. The larger the particle, the greater the surface roughness machined, but the higher the processing efficiency | Shenzhen Precision Ceramics.
Ceramic materials drilling processing Ceramic materials drilling more use cutting drill. The structure of the cutting drill is a ring diamond wheel welded to a hollow steel pipe, and the welding process is silver welding. When drilling the ceramic material, the diamond grinding wheel rotates at high speed and uses the diamond abrasive grain on the end face to cut the material.
