Disclosed is a method for preparing a
monolayer cubic
boron nitride grinding wheel by pressure
welding. The method includes the following steps of (1) selecting a
grinding wheel base material and using a mechanical
processing method to prepare a
grinding wheel substrate; (2) preparing an amorphous
alloy binding layer with a uniform thickness in a protection environment; (3) configuring and fixing cubic
boron nitride abrasive particles on the surface of the amorphous
alloy binding layer at the
room temperature, manufacturing a
grinding wheel blank and placing a
ceramic pressing piece and a pressing matter on top of the
grinding wheel blank; and (4) placing the
grinding wheel blank, the
ceramic pressing piece and the pressing matter in a
heating furnace and then rapidly cooling to the
room temperature to obtain the
monolayer cubic
boron nitride grinding wheel. The amorphous
alloy material has the advantages of high tensile strength and
hardness, low heat expansion coefficient and the like, so that the strength and abrasion resistance of a grinding wheel combination material can be improved, and a
residual stress formed between the
abrasive particles and the combination material can be reduced. The
abrasive particles are pressed into the amorphous alloy, due to the fact that many active elements which can be reacted with cubic
boron nitride are contained in the material, a small amount of compound can be formed through prolonging the heat preservation time, and the holding force of the amorphous alloy on the abrasive particles can be increased. The
processing quality of the prepared grinding wheel surface is high, and the grinding wheel can be used for high precision grinding
processing.