How to improve the surface quality of tungsten ball during processing

In the production process of tungsten balls, choosing the right processing technology is the key to improving their surface quality. Due to its extremely high hardness, traditional cutting methods often fail to meet high standards of surface finish requirements. Therefore, the application of powder metallurgy technology is particularly important. This technology can form dense tungsten balls by sintering tungsten powder at high temperature. Its initial surface is relatively smooth, and the amount of cutting required for subsequent processing is significantly reduced, thereby effectively improving the surface quality of the product.

The optimization of processing parameters is also important for improving the surface quality of tungsten balls. In the cutting process, the selection of parameters such as cutting speed, feed rate and cutting depth directly affects the surface roughness. Studies have shown that lower cutting speeds and smaller feed rates help reduce cutting forces, thereby reducing tool wear and workpiece deformation. In actual processing, the optimal cutting parameters can be determined through experiments to achieve the best surface quality. At the same time, appropriate cutting depth is particularly important in the finishing stage, and a smaller cutting depth helps to further improve the surface finish.

Cooling and lubrication also play an important role in tungsten ball processing. Tungsten materials generate a lot of heat during the cutting process. Therefore, appropriate coolants can not only effectively reduce the processing temperature, but also reduce tool wear and workpiece deformation. Water-soluble cutting fluid and oil-based cutting fluid are commonly used coolants in tungsten processing, which can form a good lubrication effect in the cutting area, thereby improving cutting efficiency and surface quality. When selecting a coolant, it is necessary to ensure its compatibility with the tungsten material to avoid unnecessary chemical reactions.

In addition, the use of advanced processing technology can also significantly improve the surface quality of tungsten balls. In recent years, the widespread application of CNC processing technology has greatly improved the processing accuracy and surface quality of tungsten balls. CNC machine tools can achieve high-precision cutting and reduce the impact of human factors on processing quality. At the same time, emerging technologies such as laser processing and electrospark processing have gradually been introduced into the processing of tungsten balls. These technologies can achieve high-quality surface treatment in a shorter time, especially suitable for tungsten balls with complex shapes.

After the tungsten ball processing is completed, the post-processing process is also crucial. Oxides, chips and other impurities may exist on the surface of the tungsten ball after preliminary processing, which will affect its subsequent performance. Therefore, the use of post-processing technologies such as chemical cleaning, mechanical polishing or electrolytic polishing can effectively remove surface impurities and improve surface finish. Mechanical polishing significantly improves the surface roughness through physical grinding, while electrolytic polishing removes surface microscopic unevenness and improves surface gloss through electrochemical reactions.