Method for utilizing micro-explosion of electrode striking arc to process engineering ceramics and device thereof

A technology of engineering ceramics and electrodes, which is applied in the field of special processing, can solve problems such as cracking of ceramic materials, and achieve the effects of low power supply, guaranteed processing efficiency and quality, low equipment investment and operating costs

Inactive Publication Date: 2009-06-03
田欣利 +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The outstanding disadvantage of this technology for cutting engineering ceramics is that the plasma arc must have extremely high power density and strict cutting process parameters, otherwise the ceramic material may crack due to thermal stress concentration before the cutting is completed

Method used

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  • Method for utilizing micro-explosion of electrode striking arc to process engineering ceramics and device thereof
  • Method for utilizing micro-explosion of electrode striking arc to process engineering ceramics and device thereof
  • Method for utilizing micro-explosion of electrode striking arc to process engineering ceramics and device thereof

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Embodiment Construction

[0017] The method and device for processing engineering ceramics developed by the present invention using electrode arc ignition micro-detonation are further described as follows in conjunction with the accompanying drawings and examples:

[0018] The method of the present invention is to use the micro-explosion bombardment waves produced at the moment of electrode arc ignition to aim at the surface of the ceramic workpiece, and to erode out a circular pit with a diameter of about 1-2 mm and a depth of 0.01-1 mm on the surface of the ceramic workpiece. The pulse of the explosive bombardment wave controls the launch and the feed movement of the worktable at a corresponding speed to realize the removal of the surface. The specific implementation steps of the above method are:

[0019] A pulse-controlled working current is loaded between the two electrodes. At the moment when the arc is ignited by a high-frequency electric spark, the compressed air input simultaneously with the w...

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Abstract

The invention relates to a method for utilizing the micro-explosion of an electrode striking arc to process engineering ceramics and a device thereof, and belongs to the technical filed of non-traditional machining. The method is that a micro-explosion bombardment wave generated by the electrode striking arc is used for being targeted at the surface of a ceramic workpiece; the surface of the ceramic workpiece is eroded to form a circular concave pit with 1-2 mm diameter and 0.01-1 mm depth, so as to realize the removal and the processing of the surface of the workpieces. The device comprises an air-compressor, a special impulse power supply, a numerical control three dimensions working table and a bombardment wave launcher, wherein, the compressed air output by the air-compressor is led into the inner cavity of the bombardment wave launcher through the cathode power supply duct of the special impulse power supply; the cathode of the special impulse power supply is connected with a core pole of the bombardment wave launcher; the anode of the special impulse power supply is connected with the nozzle of the bombardment wave launcher; and the nozzle of the bombardment wave launcher opens towards the table-board of the numerical control three dimensions working table. The invention has remarkable advantages of simple structure, low price, easy control on parameters, and capability of realizing the processing of a heteromorphic curved surface.

Description

technical field [0001] The invention belongs to the technical field of special processing, and in particular relates to a processing method and device for difficult-to-process materials such as engineering ceramics. Background technique [0002] At present, the main processing method of engineering ceramics is still the traditional diamond grinding wheel grinding technology, and all countries are vigorously developing new high-efficiency, low-cost, and low-damage ceramic grinding methods. After decades of development, people have developed high-speed (ultra-high-speed) grinding, online electrolytic sharpening (ELID) grinding, electrolytic grinding, ultrasonic grinding, and electrolytic spark grinding on the basis of grinding processing technology. , Interface chemical reaction grinding and other composite processing technologies are applied to the processing of engineering ceramics, and have achieved certain results in surface quality, but the efficiency has not improved muc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/91
Inventor 田欣利杨俊飞刘超张玉琴
Owner 田欣利
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