A film-forming performance control method of large-grained multi-layer brazed diamond grinding wheel electrolytic oxide film

Abstract

The invention discloses a film forming performance regulating and controlling method for large-granularity multi-layer brazing diamond grinding wheel electrolytic oxidation film. An electrolyte spraying device is adopted for accurately controlling spraying of a carbon nano tube containing electrolyte and a carbon nanosphere containing electrolyte in the grinding wheel grinding particle sharpeningstage, and a layer of composite oxidation film with large adhering force and the self-lubrication function can be generated on the surface. In the grinding wheel grinding particle abrasion stage, onlythe carbon nano tube containing electrolyte with the higher electrolysis capability is sprayed, the electrolysis voltage, the electrolysis time and other electrolysis parameters are improved, the thickness of the oxidation film is rapidly increased, abraded grinding particles disengage in time, and the sharpness and the scrap containing space of a large-granularity multi-layer brazing grinding wheel are effectively guaranteed. The film forming performance regulating and controlling method effectively solves the problem about difficult trimming of the large-granularity multi-layer brazing diamond grinding wheel, and the effect that the large-granularity multi-layer brazing diamond grinding wheel can achieve efficient precision machining in the whole grinding process can be achieved as well.

Description

technical field [0001] The invention relates to an electrolytic trimming film-forming method in the field of high-efficiency precision machining, in particular to a method for controlling the film-forming performance of an electrolytic oxide film of a large-grained multi-layer brazed diamond grinding wheel. Background technique [0002] At present, fine-grained diamond grinding wheels have been widely used in the precision / ultra-precision grinding process of difficult-to-machine materials, especially in the precision grinding occasions of online electrolytic trimming that require high surface quality and smooth machining process. The abrasive particle size of the fine-grained grinding wheel is usually in the order of several microns or submicrons, so it can effectively ensure the machining accuracy. The efficiency is low; and the wear resistance of fine-grained diamond abrasive grains is limited, and the abrasive grains are easy to wear and affect the overall performance and...

AI Technical Summary

Problems solved by technology

However, in the conventional electrolyte electrolytic dressing process, the thickness of the oxide film is relatively thin, generally a few microns to tens of microns, which usually can only meet the requirements of fine-grained diamond grinding wheels, which greatly limits its application in large-grained multi-layer brazing. Application of Electrolytic Dressing of Welding Grinding Wheel

Specifically reflected in the large particle size of the multi-layer brazed grinding wheel, the depth of embedding in the base material of the grinding wheel is large, and the bottom of the worn abrasive grains on the working surface of the grinding wheel in the ordinary electrolysis process is still controlled by the densification of the brazing filler metal. Abrasive particles cannot fall off in time, and the existence of abrasive particles will cause continuous reduction in the quality of the machined surface

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