The bond of a diamond tool is mainly determined by the tool’s use. There are mainly three types of bond: resin, ceramics and metal.

1) Resin Bond: This bond itself has good elasticity and polishing function, but is subject to being burnt under high temperatures. The resin bond diamond tools have good self-sharpening capacity, and are not easy to be blocked. They seldom need several times’ repair . Their grinding/cutting efficiency is high, roughness is low, and the temperature generated in the processing is also low. As their these advantages, the resin bond diamond tools are widely used in half-fine or fine grinding for carbide cutting-tools or workpieces. Resin bond CBN tools are mainly used for the cutting edge’s grinding of high-vanadium HSS cutting tools, and half-fine or fine grinding for workpieces of tool steel, mold steel, stainless steel and heat-resisting steel.

2) Ceramics Bond: Ceramics bond has higher toughness and good heat-resisting performance. The ceramics bond diamond tools can cut/grind sharply and their efficiency is high. Over-heating and blocks seldom happen in the cutting/grinding process. Their thermal expansion is small, so the processing precision can be easily controlled. They can be repaired easily. They are normally used in coarse or half-fine grinding, profile grinding with broad contact area and grinding for superabrasive sinter.

3) Metal Bond: There are two kinds of metal bonds: bronze and electroplate. Bronze bond has good rigidity, high toughness, good wear resistance and long service life. It also has good shape-keeping performance and can withstand larger workload. However, its self-sharpening performance is bad. It is subject to block and is difficult to be repaired. The bronze bond diamond tools are mainly used in cutting and coarse or fine grinding for non-metal materials, such as glass, ceramics, stone, concrete, semiconductor materials and super-hard materials, and a few of them are used in the coarse grinding for carbide alloy, profile grinding and honing. Bronze bond CBN tools can be used in profile grinding for metal materials and honing for various alloy steel.

Electroplate bond has an even higher toughness. The electroplate bond diamond tools have a thin abrasive layer in which the density of the abrasive grains is high. The tool is sharp and its cutting/grinding efficiency is high. It is economical and does not need repair, but its service life is short. Electroplate bond is suitable to be used to manufacture profile grinding tools with complicated forms, small grinding heads, trepanning tools, saw blades and electroplated reamers, and can be applied in high speed grinding manners.