How to avoid surface scratches during polishing and grinding of hardware workpieces?
Publish Time: 2025-03-13
In the production and processing of hardware workpieces, polishing and grinding are two crucial links. They can not only improve the surface finish of the workpiece, but also enhance its corrosion resistance, wear resistance and aesthetics. However, these two processes are also very likely to cause scratches on the workpiece surface, thus affecting product quality and overall appearance. Therefore, how to effectively avoid surface scratches during polishing and grinding is an important issue that hardware workpiece processing companies need to face.During polishing and grinding, the main reasons for scratches on the surface of hardware workpieces include improper selection of abrasives, excessive hardness of polishing tools or grinding discs, unreasonable ratio of grinding fluid or polishing agent, and irregularities during operation. In order to avoid these scratches, it is necessary to start from multiple aspects and consider various factors comprehensively.In the selection of abrasives, the appropriate abrasive type and particle size should be selected according to the material, hardness and polishing requirements of the hardware workpiece. The selection of abrasives should follow the principle of "soft to hard, hard to soft", that is, softer abrasives are suitable for workpieces with higher hardness, while harder abrasives are suitable for workpieces with lower hardness. In addition, the particle size of the abrasive should also be determined according to the specific needs of polishing and grinding. Too large a particle size may cause scratches, while too small a particle size may affect the polishing efficiency.The hardness of polishing tools and grinding discs is also an important factor affecting surface scratches. Polishing tools and grinding discs with too high hardness are prone to scratches during polishing and grinding. Therefore, when selecting polishing tools and grinding discs, it is necessary to comprehensively consider factors such as their hardness, wear resistance and toughness to ensure that they can meet the requirements of polishing and grinding while avoiding scratches on the workpiece surface.The ratio of grinding fluid or polishing agent also has an important influence on the effect of polishing and grinding. Reasonable ratio can ensure good contact between abrasive and workpiece during polishing and grinding, thereby improving polishing and grinding efficiency and reducing the risk of scratches. When mixing the grinding fluid or polishing agent, it is necessary to adjust according to factors such as the type and particle size of the abrasive and the material of the workpiece to obtain the best polishing and grinding effect.In addition to the above points, standardization during the operation is also the key to avoiding surface scratches. During the polishing and grinding process, it is necessary to maintain a stable operating force and speed to avoid surface scratches caused by excessive polishing or grinding. At the same time, it is also necessary to clean the polishing tools and grinding discs regularly to prevent impurities and abrasive residues from scratching the workpiece surface.In summary, avoiding surface scratches on hardware workpieces during polishing and grinding requires multiple aspects. By selecting suitable abrasives, polishing tools and grinding discs, reasonably mixing grinding fluids or polishing agents, and standardizing the operation process, the risk of scratches can be effectively reduced and product quality and overall appearance can be improved.
