0 Introduction

Superhard abrasives made from diamond or cubic boron nitride (CBN) abrasives have been widely used in all areas of grinding due to
their excellent grinding properties.


Diamond grinding wheel grinding cemented carbide, glass, ceramics, precious stones and other high-hard and brittle materials effects
tool. In recent years, with the rapid development of high-speed grinding ultra-precision grinding technology, a higher demand on the
wheel, metal bond wheel because of its combination of high strength, good shape, long service life and other significant features
and production has been widely application.


Metal bonded diamond wheel according to the different manufacturing methods are mainly sintering, electroplating two types. In order
to give full play to the role of superhard abrasive, foreign from the early 1990s began to use high-temperature brazing process
development of a new type of grinding wheel, that is, single-layer high temperature brazing superhard abrasive wheel.


1, sintered type diamond grinding wheel

Sintered metal bond grinding wheel is made of bronze and other metal as bonding agent. It is made by high temperature sintering

method. It has high bonding strength, good formability, high temperature resistance, good thermal conductivity and long service life

and can bear heavy load. As the grinding wheel sintering process inevitably exist shrinkage and deformation, so the wheel must be

used before shaping, but the wheel dressing more difficult. At present, the conventional grinding wheel shaping method is not only

time-consuming and labor-intensive, but also the dressing process of diamond particles fall off more, dressing the wheel itself is

very expensive, plastic precision is low.


In recent years, scholars have carried out the application of special processing methods of dressing metal bond diamond wheel

research work, mainly electrolysis dressing method, EDM dressing compound dressing method. Electrolysis dressing method is fast, but

the precision is not high; EDM dressing high precision, both plastic surgery can repair sharp, but the slower shaping; complex

dressing method of electrolytic spark compound dressing method, mechanochemical composite dressing method So the dressing effect is

better, but the system is more complex, so the sintering of diamond wheel dressing problem is still not well resolved.


In addition, because the grinding wheel manufacturing process determines the surface morphology of the random, each grain geometry,
distribution and cutting edge height is inconsistent, so only a small number of high-cutting edge cutting to the workpiece, limiting
grinding quality grinding Efficiency is further improved.