A brazed superhard abrasive grinding wheel capable of grinding right-angled profiles and a preparation method thereof

Abstract

The invention discloses a brazed superhard-abrasive grinding wheel capable of grinding right-angle molded surfaces and a preparation method. The brazed superhard-abrasive grinding wheel comprises a grinding wheel base body, conventional superhard abrasives and large-diameter superhard abrasives, wherein the grinding wheel base body is provided with base body grinding angles with the number being equal to the number of the right-angle molded surfaces; each base body grinding angle comprises two base body right-angle surfaces and a base body inclined surface; each base body inclined surface is connected with the corresponding two base body right-angle surfaces; each base body inclined surface and each corresponding base body right-angle surface form a 135-degree included angle; the conventional superhard abrasives are single-layer brazed on all the base body right-angle surfaces; and the large-diameter superhard abrasives are single-layer brazed on all the base body inclined surface; the diameter of each large-diameter superhard abrasive is larger than the diameter of each conventional superhard abrasive. By adopting the structure and the method, the right-angle molded surfaces without circular beads can be machined, the bonding strength of the abrasives is high, the abrasives are sharp, the grinding life is long, and the abrasives cannot fall off easily. Meanwhile, a preparation process is simple and stable.

Description

technical field [0001] The invention relates to the field of superhard abrasive tool manufacturing, in particular to a brazed superhard abrasive grinding wheel capable of grinding and processing right-angle profiles and a preparation method thereof. Background technique [0002] Superabrasive grinding wheels can be used for grinding metal and non-metal materials, especially in the metal field. Such as surface grinding of metal materials, forming grinding, profile grinding, etc. At present, superabrasive grinding wheels mostly use brazing, electroplating and other methods to consolidate superabrasives, and most of them are single-layer abrasive tools. [0003] Superhard abrasives include: natural diamond, artificial diamond, cubic boron nitride, polycrystalline cubic boron nitride and other abrasives. Lifetime processing. [0004] Grinding wheels made of superabrasives can process planes, inclined surfaces, and special-shaped surfaces. The main method is to use the profili...

AI Technical Summary

Problems solved by technology

Also affects the grinding performance

[0013] It can be seen from the above that when the R value becomes smaller, it is difficult to process and prepare conventional superabrasive grinding wheels, and in some fields, as mentioned above, for example, the shape grinding of alloy saw blades before brazing During processing, the R value needs to be as zero as possible, that is, when the R value is lower than the abrasive particle radius, theoretically, the corner radius of the matrix is ​​negative, and it is impossible to prepare

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