Ceramic and resin composite grinding wheel

Abstract

The invention relates to a ceramic and resin composite grinding wheel. The ceramic and resin composite grinding wheel is prepared by a method which comprises the following steps of (1) uniformly mixing ceramic bond and grinding materials proportionally, and preparing a ceramic grinding wheel according a ceramic grinding wheel producing method; (2) smashing the ceramic grinding wheel obtained in the step (1) so as to obtain ceramic grinding wheel powder; and (3) preparing a grinding wheel by using the ceramic grinding wheel powder obtained in the step (2) as raw materials so as to obtain the ceramic and resin composite grinding wheel. The macrostructure of the ceramic and resin composite grinding wheel is a resin grinding wheel, the microstructure of the ceramic and resin composite grinding wheel is a ceramic grinding wheel, the heat resistance of the ceramic and resin composite grinding wheel can be equal to that of the ceramic grinding wheel, the bonding strength of the grinding materials is greatly enhanced, the bending strength reaches 60MPa, the tensile strength reaches 16MPa, the ceramic bond can be safely used under the condition that the revolving speed is 80-100m/s owing to the high strength of the ceramic bond, and the yield is higher than 95%.

Description

technical field [0001] The invention relates to an abrasive tool and a preparation method thereof, in particular to a ceramic-resin composite grinding wheel. Background technique [0002] Resin bonded superhard material abrasive tools are made of diamond or CBN as abrasive, resin powder as adhesive, adding appropriate filling materials, and are made through processes such as preparation, mixing, hot pressing, curing, and machining. A processing tool with a certain geometric shape and applicable to different grinding requirements. Superhard material resin abrasives have the following advantages: ①High grinding efficiency, good self-sharpening, small grinding heat, not easy to block, and can reduce the phenomenon of burnt workpieces; ②Grinding has certain elasticity, which is conducive to improving the surface of workpieces It is widely used in fine grinding, semi-finish grinding, sharpening, polishing and other processes; ③The manufacturing process is simple, the raw materia...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a ceramic-resin composite grinding wheel, which solves the problems that the existing resin bond grinding wheel has low heat resistance, insufficient firm holding force on the abrasive, and easily causes the abrasive to fall off; and the tensile strength of the vitrified bond grinding wheel Relatively small, no plasticity, the internal distribution of tensile stress will cause serious damage to the strength of the vitrified bond, making it easy to produce micro-cracks at the interface between the bond and the superhard abrasive grains, and even the sintered block breaks to cause tool waste and other problems