Methods to Reasonably Choose Grinding Wheel in Grinding Process

It is necessary to choose different grinding wheel for machining different workpiece materials and meeting different needs. Grinding wheels have different types with different binder and hardness. It is the most important thing to choose the appropriate grinding wheel according to the actual situation.

Diamond grinding wheel is the best abrasive product to grind cemented carbide, ceramics, optical glass, precious stones, stone materials and other non-metallic materials with hardness brittleness. But because of diamond easily carbonized in 700 ℃ ~ 800 ℃, it is not suitable for grinding steel with high content of iron.

The hardness of CBN is slightly lower than that of diamond, but its thermal stability (which can withstand temperatures up to 1300 ℃ ~ 1400 ℃) is great, and the chemical inertness with iron group element and thermal conductivity (46 times of corundum) are high. Grinding wheel made of that will have long life and doesn't decompose like diamond under the high temperature (i.e., oxidation and graphitization). It is the best abrasive product to replace corundum grinding wheel grinding hardened steel, bearing steel, high-speed tool steel, stainless steel, heat-resistant steel, titanium alloys and other metal materials with high hardness and toughness.

The bonding agents of diamond grinding wheel include resin, metal, ceramics, electroplating, brazing, etc. And according to the actual usage, it is crucial for the efficiency and quality of grinding to choose diamond grinding wheel with different bonding agent.