Flexible electromagnetic pole compounding tool

Abstract

The invention discloses a flexible electromagnetic pole compounding tool which comprises a base body of the tool and an abrasive particle layer, wherein the abrasive particle layer comprises abrasive particles and an abrasive material binding agent layer; the abrasive particles are combined with the end part of the base body through the abrasive material binding agent layer; and magnetic powder particles (protection layer) induced to discharge are also attached to the surface of the abrasive material binding agent layer. The abrasive particle layer is of a multi-layer structure; if the abrasive particles are naturally worn, the protection layer can be temporarily weakened or eliminated by controlling the magnetic field or by other ways; and the abrasive material binding agent of the worn layer is removed by use of an electric arc effect and the new sharp abrasive particles on the lower layer are exposed so as to keep the tool in a sharp state. The technical means of the patent is simple, convenient and practicable, and has a positive technical effect.

Description

technical field [0001] The invention belongs to the field of electrochemical arc machining, in particular to a flexible electromagnetic pole composite tool. Background technique [0002] Superhard metal materials and metal matrix composites are increasingly widely used in light industry papermaking, aerospace, electronics, automobiles and other industrial fields. At present, the processing methods of superhard materials and metal matrix composites mainly include traditional mechanical processing methods and special processing methods including laser processing, abrasive jet processing, electrolytic processing, and EDM. [0003] Among them, the mechanical processing method must use a tool that is harder than the workpiece material to process superhard materials, which undoubtedly greatly increases the cost of processing. In the processing of metal matrix composites by mechanical processing, severe tool wear and inferior Surface quality is two major problems that have not bee...

AI Technical Summary

Problems solved by technology

However, the arc effect during the machining process will lead to rapid tool wear, and compared with EDM, the machined surface quality has not been substantially improved.

[0007] The grinding effect has been proven to achieve high-quality machined surfaces and high dimensional accuracy, but it is extremely inefficient

The method of electrochemical arc grinding combined machining not only has higher efficiency than electrochemical arc machining, but also can obtain a well-integrated surface. However, during the machining process, the abrasive grain bond on the tool surface will be quickly destroyed. The arc effect is removed, which causes the abrasive particles to fall off, causing the tool to fail and making the process impossible

[0008] It can be seen from the above that with the continuous development of science and technology and society, the existing methods and processing technologies for processing superhard metal materials and metal matrix composite materials can no longer meet the needs of industrialization.

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