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Five polishing methods for sharp and durable cutting wheel

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In the grinding, the abrasive or abrasive tool is used as a grinding tool to machine the parts to be processed to meet certain technical requirements. Polishing is an important procedure in abrasive tools. Not only polishing sand polishing but also many methods we have not touched. Here are five polishing methods for sharp and durable cutting wheel.
1. Chemical polishing: Chemical polishing is to make the material slightly convex in the chemical medium, and the concave portion is preferentially dissolved to form a smooth surface. The main advantage of this method is that it can polish a workpiece with complex shapes without complicated equipment, and can polish many workpieces at the same time with high efficiency.
2. Magnetic Abrasive Polishing: Magnetic Abrasive Polishing is the use of magnetic abrasives to form an abrasive brush under the action of a magnetic field, and the polishing sheet is used to grind the workpiece. This method has high processing efficiency, good quality, easy control of processing conditions and good working conditions. With suitable abrasives, the surface roughness can be achieved in the processing of plastic molds. The polishing is very different from the surface polishing required in other industries. Strictly speaking, abrasive polishing with abrasives should be called mirror processing. It not only has high requirements for polishing itself but also has a high standard for surface flatness and smoothness. Surface polishing generally requires only a shiny surface.
3, fluid polishing: fluid polishing is based on the high-speed flow of liquid and its abrasive particles to wash the surface of the workpiece to achieve the purpose of polishing. The hydrodynamic grinding is hydraulically driven to cause the abrasive-carrying liquid medium to flow back and forth across the surface of the workpiece at high speed through the blasting gun. The medium is mainly made of a special compound which is low in pressure and is doped with an abrasive. The abrasive can be a silicon carbide powder of a dicing sheet.
4. Electrolytic polishing: The basic principle of electropolishing is the same as chemical polishing, that is, the surface of the material is selectively fused to make the surface smooth. Compared with chemical polishing, the effect of the cathode reaction can be removed, and the effect is better. The electrochemical polishing process is divided into macro leveling and micro leveling.
5. Mechanical polishing: Mechanical polishing is a polishing method that removes the polished convex portion by plastic deformation on the surface of the cutting material to form a smooth surface. Generally, oil stone strips, wool wheels, sandpaper, abrasive belts, nylon wheels, etc. are used, and the polishing sheet is used. Manual operation, special parts such as the surface of the rotor, auxiliary tools such as turntables can be used, and the method of super-fine grinding can be used for high surface quality requirements. Ultra-fine grinding and polishing is a special grinding tool made of abrasive. In the polishing liquid containing abrasive, it is pressed against the machined surface to perform high-speed rotary motion.
In the processing of the cutting piece, the mirror surface processing not only has high requirements for polishing itself but also has a high standard for surface flatness and smoothness. Surface polishing generally requires only a shiny surface. The mirror processing of the mold is still based on mechanical polishing.

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