Cemented carbide die tools have a wide range of applications and have excellent properties such as high hardness, high wear resistance, heat resistance and corrosion resistance. Even at high temperatures, the hardness is still high, so it is suitable for various harsh environments.
Polishing is a very important process in the processing of cemented carbide die tools. The polished die tools not only has a good-looking appearance, but also increases its wear resistance. So, what are the polishing processes?
1. Chemical polishing
Chemical polishing is to allow cemented carbide die tools to preferentially dissolve the microscopic protrusions on the surface of the chemical medium to obtain a smooth surface. This method can polish workpieces with complex shapes. The resulting surface roughness is generally 10 μm.
2. Electrolytic polishing
The principle of electrolytic polishing is the same as that of chemical polishing, which is to dissolve the tiny protrusions on the surface of the material to make the surface smooth.
3. Ultrasonic polishing
Ultrasonic polishing is to put the workpiece in the abrasive suspension and put it together in the ultrasonic field, relying on the oscillation effect of the ultrasonic, so that the abrasive is ground and polished on the surface of the workpiece. Ultrasonic polishing can prevent it from corroding, which is conducive to surface brightening.
4. Fluid polishing
Fluid polishing relies on high-speed flowing liquid and abrasive particles carried by it to wash the surface of the workpiece to achieve the purpose of polishing. Commonly used methods are: abrasive jet processing, liquid jet processing, hydrodynamic grinding and so on.
热门资讯
