Metallic bond diamond grinding wheel with good self-sharpening performance

Abstract

The invention discloses a metallic bond diamond grinding wheel with good self-sharpening performance, wherein the grinding wheel bond comprises bonding metal, a framework material, a carbide forming element and low-melting glass material filler; the bonding metal is used for bonding and forming various components; the framework material is used for providing a hard point for the bond and improving the strength of the bond; the carbide forming element can react with a diamond and be carbonized at a certain temperature, change mechanical occlusion into metallurgical bonding, and improve the holding force on the diamond; and the low-melting glass material filler has a thermal expansion coefficient close to those of other components, and the mechanical properties of the grinding wheel bond are adjusted by adjusting the added amount of the low-melting glass material filler. Compared with free abrasive powder grinding, the efficiency is doubled, and no dust or waste water pollution is produced; and compared with an ordinary bronze grinding wheel, the self-sharpening performance is good, the grinding efficiency is high and the finishing times are few.

Description

technical field [0001] The invention relates to the field of superhard tools, in particular to a metal-bonded diamond grinding wheel with good self-sharpening properties. Background technique [0002] Brittle and hard materials such as window glass, magnetic materials, and sapphire are widely used in mobile phone glass, precision electronic components, precision optical devices, and high-end watch glass. Due to their high hardness and brittleness, grinding and processing are very difficult. The earliest The classical grinding method is used for grinding, that is, grinding with free grinding powder. The disadvantage is that the consumption of grinding powder is large, most of the grinding powder is not used, and a large amount of dust and sewage are produced, which pollutes the environment very seriously. With the advancement of grinding technology, bronze bonded grinding wheels have been developed and used for grinding of such materials. Bronze binder is mainly composed of ...

AI Technical Summary

Problems solved by technology

[0003] In view of the problems of poor self-sharpening and easy clogging of the traditional bronze grinding wheel proposed above, the purpose of the present invention is to provide a metal bond diamond grinding wheel with good self-sharpening, high grinding efficiency and few dressing times

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