How to choose the right diamond, CBN grinding wheel?

Diamond grinding wheels are mainly used for grinding high-hard and brittle materials such as cemented carbide, glass, ceramics, gemstones, etc. However, because diamond is easily carbonized at 700 ° C ~ 800 ° C, it is not suitable for grinding steel. The hardness of the CBN grinding wheel is slightly lower than that of the diamond grinding wheel, but its thermal stability is good (can withstand 1200 ° C ~ 1300 ° C high temperature), it does not decompose at high temperature like diamond grinding wheel, namely oxidation and graphitization, and iron group chemistry It has large inertness and high thermal conductivity. The grinding wheel made of it has a long service life and is a special effect grinding machine which replaces diamond grinding wheel hardened steel, high speed tool steel, bearing steel, stainless steel, heat resistant steel and titanium alloy with high hardness and toughness. tool.

Selection of grinding wheel binder: The bonding agent of super hard abrasive wheel is resin, metal, ceramic, electroplating and brazing. Resin bond grinding wheel is mainly used for sharpening tool measuring tools, grinding holes, cylindrical grinding and surface grinding; metal bond grinding wheel is used for cutting grinding, shaping curve grinding of optical curve grinding machine, sharpening single edge cutter, grinding small drill bit The spiral groove is also suitable for electrolytic grinding; the ceramic bond grinding wheel has high grinding efficiency, good shape retention, high durability, easy dressing, long service life of the grinding wheel, and good chemical stability due to the ceramic bond itself. It is resistant to heat, oil and acid and alkali, and can adapt to various grinding fluids. Therefore, it has become the first choice for high-efficiency, high-precision and high-grinding abrasives. Electroplated bond grinding wheels are suitable for high-speed fine grinding and forming grinding. Efficient grinding of the holes (wet grinding) and use on coordinate grinding machines; brazed bond grinding wheels are suitable for ultra-high speed grinding.

Different grinding wheels should be used for different workpiece materials and different processing requirements. Even grinding the same workpiece material will result in different grinding results, so choose the right grinding wheel.