Materials complement each other, so that the scope of application of superhard materials greatly broadened. Compared to ordinary abrasive abrasive , CBN abrasive with high-speed , efficient processing of high quality , long life, low cost, high speed CNC grinding machine can be used as efficient tool of choice for high precision grinding . In the automotive abrasive manufacture industry , machine tools , bearings and so has a wide range of applications .
1, CBN nature
When the CBN for abrasive materials , we study its hardness , wear resistance, strength and thermal conductivity and other properties. CBN hardness is much higher than other conventional abrasives. High hardness means cutting stronger , sharper ;
CBN has high wear resistance , which means it harder than normal abrasive wear . The ability to maintain the shape of the CBN abrasive as one of the main characteristics of high-performance abrasives ; CBN high compressive strength , which means that when used under harsh conditions it can remain intact and not broken particles ; CBN has good thermal resistance, can be achieved in grinding cold cutting . Due to the different nature of some of CBN and diamond , the scope of their work material is different . CBN materials for processing tool steel , bearing steel , alloy steel , super alloys, cast iron . The materials suitable for processing diamond carbide, glass , ceramic , cermet, cast iron. 2, CBN abrasive CBN grinding systems use different sandpaper roll types of binding agent and the CBN bonded abrasive tool into a certain shape . It is only through rational grinding process , relying on the superiority of the grinder can , in order to maximize its effect. In the CBN grinding technology research and application , the CBN must be abrasive, grinding machines, parts, repair , cooling, grinding and other factors into a system to be optimized in order to obtain the best technical and economic results.
CBN grinding technology several important factors to be considered are as follows . 2-1 CBN abrasive grinding in the manufacture of primary consideration and selection of the shape, size , CBN abrasive particle size , concentration, type of binding agent and the use of speed and other parameters . CBN abrasive shape, size and marking by GB/T6409.2-1996 and Bonded abrasives GB/T6409.1-1994 standard requirements ;
Four CBN abrasive binder ( resin, metal , ceramic , plating ), the fastest growing ceramic bond . This is due to the high ceramic CBN abrasive grinding efficiency, good shape retention , durability, ease of repair , wheel long life, thus becoming efficient, high-precision grinding abrasive of choice .
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