Efficient machining method of controllable ablation metallic material based on electric-spark induction

Abstract

Efficient machining method of controllable ablation unmanageable metallic material based on electric-spark induction is characterized by comprising the following steps of: rotating a conductive roulette at a high speed, producing spark discharge between conductive teeth of the conductive wheel disc and the unmanageable metallic material under the action of a direct-current power supply or pulse power supply, meanwhile continuously or periodically introducing combustion-supporting gas which can produce combustion heat release effect through reacting with the unmanageable metallic material intoa processing area so that the processing area of the unmanageable metallic material is in states of discharging induced by electric spark, ablating and softening and machining. Based on the discharging function of the electric spark, the surface of metallic material has a temperature higher than ignition temperature and in state of activation, has an ablation reaction with combustion-supporting gas to generate an ablation product and release a large quantity of heat; the heat acts on the material base in the processed area so that the unmanageable metallic material is heated, softened and even in a molten state; the ablation product and softened or even molten metallic material is removed through abrasive particles on the wheel disc or mechanical cutting function of the cutting tooth. Themethod has advantages of high processing efficiency, low power consumption, environmental friendliness and high safety, and is especially suitable for machining of the unmanageable metallic material.

Description

technical field [0001] The invention relates to a metal material cutting method, in particular to a method that can improve the processing efficiency of difficult-to-machine metal materials and combines roulette cutting (grinding and milling) with electric spark ablation to quickly remove difficult-to-machine materials. A high-efficiency cutting method of electric spark induced controllable ablation of metal materials that guarantees the quality and precision of the processed surface. Background technique [0002] With the advancement of industrial production and science and technology, new materials are constantly emerging. Among these new materials, many are difficult-to-machine metal materials, such as superalloys, titanium alloys, high-strength steels, and stainless steels. These materials have the advantages of high specific strength, high hardness, high temperature resistance, corrosion resistance, wear resistance, etc., but the emergence of new materials also brings g...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of low processing efficiency of difficult-to-machine metal materials at present, and to invent a method that combines grinding and milling processing commonly used in mechanical cutting with electric discharge machining, and makes the difficult-to-process area difficult Processing method of rapidly softening and then cutting removal of processed metal materials

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