Characteristics of grinding wheels
2025-12-19
Hardness: The hardness of a grinding wheel refers to how easily the abrasive grains on its surface come loose during operation. The higher the hardness of the grinding wheel, the more difficult it is for the abrasive grains to detach; conversely, the lower the hardness of the grinding wheel, the easier it is for the abrasive grains to come loose.
Grain size refers to the size of abrasive particles, typically indicated by a mesh number. The finer the grain size, the smoother the surface of the grinding wheel and the lower the surface roughness after grinding; the coarser the grain size, the higher the grinding efficiency of the wheel, but the greater the surface roughness.
Structure: The structure refers to the relative volumetric proportions of abrasive grains, bonding agent, and pores within a grinding wheel. The lower the structure number, the greater the proportion of abrasive grains, resulting in a denser grinding wheel with higher grinding efficiency but also a greater tendency to become clogged. Conversely, the higher the structure number, the greater the proportion of pores, leading to a looser grinding wheel that offers better heat dissipation and cooling performance, though at the cost of lower grinding efficiency.
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