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Electric spark induced controllable ablation processing method based on function electrode group

An electrode group, EDM technology, applied in electric machining equipment, electrode manufacturing, metal machining equipment and other directions, can solve the problems of low EDM efficiency, difficult chip removal in machining efficiency, etc., and achieve the effect of high machining efficiency

Active Publication Date: 2013-07-10
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Based on this, the applicant has proposed a new means of energy input between electrodes to solve the problem of low EDM efficiency at present, and invented a controllable ablation method through discharge-induced ignition to rapidly etch the base metal material to be processed. method (see Chinese patent application 2010105443510 for details)
The feature of this method is that during the conventional EDM process, the gas that can generate combustion and exothermic effects with the metal material to be processed is intermittently introduced into the processing area, so that the processing is carried out alternately in the discharge-induced controllable combustion and conventional EDM. state, the efficiency of EDM has been significantly improved, but the existing machining efficiency still has problems such as difficulty in chip removal between electrodes, and the erosion efficiency can still be further improved, so this method still needs to be improved

Method used

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  • Electric spark induced controllable ablation processing method based on function electrode group
  • Electric spark induced controllable ablation processing method based on function electrode group
  • Electric spark induced controllable ablation processing method based on function electrode group

Examples

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example 1

[0044] Such as figure 2 In order to realize a combined processing system in which a fixed shaped electrode and a functional electrode constitute a bundle of ablation processing, the electrode used in the processing is formed by a combination of a shaped electrode and a functional electrode group or bundle. The functional electrode group is composed of three functional units: a working fluid input unit, a gas combustion medium input unit and an ablation product extraction unit. In the EDM process, the processing medium such as oxygen is injected into the processing area from the gas combustion medium input unit, the working fluid is injected into the processing area from the working fluid input unit, and the erosion product extraction unit removes the erosion products and excess produced during the processing. The working fluid is pumped away from the processing area.

[0045] In such figure 2 In the processing system shown, the workpiece is formed and processed. The forming ele...

example 2

[0048] Such as image 3 A functional electrode cluster group and a processing system for realizing ablation milling processing. The functional electrode cluster group is composed of a single or multiple functional electrode groups. The functional electrode group is composed of two functional units, a working fluid input unit and a gas combustion medium input unit. In the EDM process, the processing medium such as oxygen is injected into the processing area from the gas combustion medium input unit, and the working fluid is injected into the processing area from the working fluid input unit.

[0049] In such image 3 In the processing system shown, the workpiece is milled. The speed-regulating motor 301 drives the functional electrode cluster 304 to rotate through the pulley 302. The processing system is placed on an insulating worktable 303 capable of three-dimensional movement to mill the workpiece 306. The power feeding mechanism connects the pulse power supply between the work...

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Abstract

The invention discloses an electric spark induced controllable ablation processing method based on a function electrode group. The method is characterized by comprising the following steps of: combining a working solution input unit, a gas burning medium input unit and an ablation product extraction unit for the electric spark induced controllable ablation processing to form a function electrode group; synthesizing the function electrode group and a forming electrode group into a forming electrode group or separately forming a function electrode bundle group to be connected with a pulse powersupply as a processing electrode; in the electric spark processing process, spraying the gas burning medium into a processing area from the gas burning medium input unit so that the working solution is sprayed into the processing area from the working solution input unit; extracting the ablation product generated in the processing process and part of the working solution out of the processing area through the ablation product extraction unit; and driving the processing electrode formed by bundling or combining the function electrodes to move relative to a workpiece through a numerical controlworkbench so as to realize the processing forms of forming processing, milling processing, turning processing and the like. The method disclosed by the invention has high processing efficiency and low loss, and is safe and pollution-free.

Description

technical field [0001] The invention relates to an electric discharge machining technology, in particular to an electric discharge induction controllable ablation processing method, specifically, it can improve the efficiency of electric discharge processing, and use functional electrode groups to generate electric discharge induction controllable ablation on the surface of a workpiece. Erosion machining, and rapid cooling, deionization, timely and rapid chip removal, improve the efficiency of EDM and ensure the quality and accuracy of the machined surface. The EDM-induced controllable ablation machining method based on the functional electrode group. Background technique [0002] With the advancement of science and technology and the development of industry, new materials emerge in an endless stream. These materials not only have high hardness, high strength, high wear resistance, but also have high melting point, strong corrosion resistance and other characteristics, makin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H1/00B23H1/08B23H1/04
Inventor 刘志东徐安阳田宗军邱明波沈理达黄因慧
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS