On-line sharpening method of spraying strong oxidizing grinding fluid to the surface of superhard abrasive metal bond grinding wheel

Abstract

An on-line sharpening method in which strong oxidative grinding fluid is sprayed onto the surface of a superhard abrasive metal bond grinding wheel. After the grinding fluid is prepared, the polishing fluid is added to the grinding fluid tank in the external grinding fluid circulation system of the grinding machine In the process, the grinding fluid is injected into the mixing tank through the vane pump. In the mixing tank, the grinding fluid will be mixed with the oxidizing agent. The oxidizing agent is composed of ozone and thiosulfate. The thiosulfate promotes the rapid generation of hydroxyl radicals by ozone and Mixed in the grinding fluid to form a strong oxidizing grinding fluid, and then the strong oxidizing grinding fluid is sprayed on the surface of the superhard abrasive metal bond grinding wheel through the booster pump, at this time, the strong oxidizing grinding fluid removes the metal on the surface of the grinding wheel The bonding agent oxidizes to form an oxide layer, and the oxide layer can slow down and prevent further oxidation to avoid excessive wear of the grinding wheel. The invention solves the problem that a hard layer is formed on the surface of the grinding wheel in the current electric spark dressing and the subsequent grinding effect is deteriorated.

Description

technical field [0001] The invention relates to the technical field of grinding, in particular to an online sharpening method for spraying a strongly oxidizing grinding fluid onto the surface of a superhard abrasive metal bond grinding wheel. Background technique [0002] Superabrasives have been widely used in the field of machining due to their extremely high hardness and wear resistance. During the grinding process, due to the large holding force of the superhard abrasive wheel bond on the abrasive particles, the abrasive particles cannot be worn in time. Therefore, in order to achieve good grinding performance, the grinding wheel must be dressed. Shaping and dressing are two processes of grinding wheel dressing. Shaping refers to dressing the shape of the grinding wheel. Round, reduce the runout in the grinding process of the grinding wheel, and sharpening is to make the abrasive grains appear from the surface of the grinding wheel to generate new cutting edges, so that ...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the prior art, the present invention provides an online sharpening method in which a strong oxidizing grinding fluid is sprayed onto the surface of a superhard abrasive metal bond grinding wheel. A strong oxidizing agent is mixed into the grinding fluid to configure a strong oxidizing Cutting fluid, which solves the problem that the current EDM dressing will form a hard layer on the surface of the grinding wheel, which will deteriorate the subsequent grinding effect. At the same time, the whole method can realize online dressing of superhard abrasive metal bond grinding wheels without complicated devices. Moreover, the oxidant has no risk of secondary pollution, which is conducive to industrial application

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