Basic Reasons Affecting Surface Polishing Finish

The grinding method can make the mold surface smooth, and the degree of smoothness is related to the following factors: ①. The quality of tool steel ②. Heat treatment process ③. Polishing technology and process equipment
It is generally believed that polishing process equipment is the most important influencing factor. Appropriate polishing technology and process equipment combined with high-quality tool steel and correct heat treatment process can achieve satisfactory smoothness. On the contrary, even if the best quality steel is used, it will not achieve a highly mirrored effect.

1. The quality of tool steel
   Uneven hardness or differences in the characteristics of the steel surface often make polishing difficult. Various inclusions and pores in the steel are not conducive to polishing.
2. Heat treatment process
   Heat treatment affects the polishing performance in many ways. The fine structure of surface hardened steel is not conducive to polishing due to the increase in surface carbon content. Because the increase in small oxide particles on the surface of the steel makes polishing difficult. Carburization or decarburization on the surface of the steel will change the hardness, causing difficulties in polishing.
   The grinding method can make the mold surface smooth, and the degree of smoothness is related to the following factors:
3. Steel quality (uneven hardness or differences in the characteristics of the steel surface often increase the difficulty of polishing).
4. Heat treatment process (heat treatment affects polishing performance in many ways).
5. Polishing technology (polishing process and polishing consumables directly affect the polishing effect).
   Polishing technology is generally considered to be the most important influencing factor. Appropriate polishing technology, good polishing consumables, high-quality tool steel and correct heat treatment process can achieve satisfactory finish. On the contrary, improper use of polishing technology and consumables will not achieve a highly mirrored effect even with the best quality steel.