How to adjust the particle size and hardness of the polishing grinding disc for different surface roughness requirements?
Publish Time: 2024-12-30
The particle size and hardness of the polishing grinding disc are the key factors that directly affect the surface roughness after polishing. Different surface roughness requirements require the selection of polishing grinding discs with different particle sizes and hardnesses to achieve the ideal polishing effect.The particle size of the polishing grinding disc refers to the size of the abrasive particles. The finer the particle size, the more uniform the abrasive particles, and the lower the surface roughness after polishing. Therefore, when a smooth and delicate surface needs to be polished, a polishing grinding disc with a finer particle size should be selected. On the contrary, if only preliminary grinding or removal of larger surface defects is required, a polishing grinding disc with a coarser particle size is more suitable because they can remove materials faster and improve work efficiency.The hardness of the polishing grinding disc refers to the difficulty of the abrasive particles falling off during the polishing process. A polishing grinding disc with a higher hardness has abrasive particles that are not easy to fall off and can maintain the polishing effect for a longer time, but it may also cause scratches or unevenness on the polished surface. For polishing grinding discs with lower hardness, abrasive particles are more likely to fall off, and the polishing efficiency is lower, but it can avoid deep scratches and is suitable for fine processing after polishing.In actual operation, for specific surface roughness requirements, we can first select the appropriate particle size based on experience or polishing standards. Then, according to the hardness of the polishing material and the feedback during the polishing process, adjust the hardness of the polishing grinding disc. If scratches or unevenness appear on the polished surface, you can try to use a polishing grinding disc with a slightly lower hardness for another polishing to obtain a smoother surface.In addition, the selection of polishing grinding discs also needs to consider factors such as the characteristics of the polishing material, the speed of the polishing machine, and the polishing time. Therefore, in actual applications, we need to comprehensively consider various factors and find the most suitable combination of polishing grinding discs through experiments and adjustments to achieve the best polishing effect.In short, adjusting the particle size and hardness of the polishing grinding disc for different surface roughness requirements is an important part of the polishing process. By reasonably selecting and using the polishing grinding disc, we can obtain a smooth, delicate, and high-quality polished surface.
