Choose the right grinding wheel

Different grinding wheels should be used for different workpiece materials and different processing requirements.Even if grinding the same workpiece material, the grinding ratio of different grades of grinding wheels may differ by 2~5 times, so appropriate grinding wheels should be selected.  

Diamond grinding wheel is the best grinding tool for hard alloy, optical glass, ceramics, gem and stone materials with high hardness and high brittleness.  However, diamond is not suitable for grinding steel because it is easy to carbonize at 700℃~800℃.  CBN slightly inferior to the hardness of diamond, but its thermal stability (which can withstand temperatures up to 1300 ℃ ~ 1400 ℃), it is not like a diamond in the high temperature decomposition, namely, oxidation and graphitization, and the elements of iron group chemical inertness, high thermal conductivity (46 times that of corundum), made of the grinding wheel long life (up to several dozen times the corundum grinding wheel to into more than one hundred times).  It is the best abrasive tool to replace corundum wheel for grinding hardened steel, high speed tool steel, bearing steel, stainless steel, heat resistant steel and titanium alloy and other high hardness and toughness metal materials.  
The bond of superabrasive wheel includes resin, metal, ceramic, electroplating and brazing.  Resin bond grinding wheel is mainly used for grinding tool measuring tools, grinding holes, cylindrical grinding and plane grinding;  Metal bond grinding wheel is used for plunge grinding, forming grinding of optical curve grinding machine, grinding single edge cutter, grinding spiral groove of small drill bit, and also for electrolytic grinding;  Ceramic binder grinding wheel of high grinding efficiency, good shape retention, high durability, easy dressing, grinding wheel service life is long, and because of ceramic bond itself has good chemical stability, heat resistant, oil resistant, resistant to acid and alkali erosion, can adapt to all kinds of grinding fluid, grinding cost is low, and therefore has to make the first selection of high efficiency, high precision grinding abrasive;  Electroplating grinding wheel is suitable for high speed fine grinding and forming grinding, also suitable for efficient hole grinding (wet grinding) and use in coordinate grinding machine;  Brazing wheel is suitable for ultra-high speed grinding.