Self-inductive-internal flushing liquid electric spark processing method for metal with insulating ceramic coating

A technology of insulating ceramics and processing methods, which is applied in the field of electric discharge machining and forming, can solve the problem that insulating ceramic coating metal materials cannot be processed with high quality and high efficiency, and achieve good chip removal and increase processing speed.

Active Publication Date: 2013-12-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that insulating ceramic coating metal materials cannot be processed with high quality and high efficiency, the present invention provides a high-efficiency, high-quality, and reliable self-induction-internal flushing liquid EDM method for insulating ceramic coating metal, which expands the Application range of coated metals in various fields

Method used

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  • Self-inductive-internal flushing liquid electric spark processing method for metal with insulating ceramic coating
  • Self-inductive-internal flushing liquid electric spark processing method for metal with insulating ceramic coating
  • Self-inductive-internal flushing liquid electric spark processing method for metal with insulating ceramic coating

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specific Embodiment approach 1

[0022] Specific implementation mode one: as figure 1 As shown, before processing, the electrode 12 is clamped by the electrode rotating and clamping device 102 , and the electrode 12 is terminated with the electrode guiding device 30 . The electrode rotation and clamping device 102 is fixed to the clamping head of the machine tool spindle 6 through the fixed block 8 on the epoxy resin beam base, and the machine tool spindle 6 drives the electrode rotation and clamping device 102 and then drives the electrode 12 to do vertical (Z axis) direction of movement. The weight of the entire device after assembly is about 1.5kg, which is far less than the maximum electrode weight of the machine tool 50kg, and will not affect the servo movement of the machine tool spindle 6, which is driven by the EDM machine tool spindle 6 to move up and down to provide progress during processing. Give movement. The electrode guide device 30 is installed at the bottom of the working fluid tank of the ...

specific Embodiment approach 2

[0025] Specific implementation mode two: as Figure 7-9As shown, this embodiment provides an electrode rotation and clamping device for electric discharge machining of insulating ceramic coated metal. The electrode rotation and clamping device includes an electrode rotation device 2, an insulating substrate 3, an electrode clamping device 5, Fixed block 8, synchronous belt transmission mechanism 9, DC geared motor 10 and electrode 12, electrode 12 adopts hollow tubular electrode, described electrode rotation device 2 includes pressure oil interface 13, upper end cover 14, spring 15, sealing block 16, sealing Assembly 17, upper bearing 18, base body 19, lower bearing 20, lower end cover 21, brush holder 22 and hollow shaft 23, the electrode holding device 5 includes an upper compression cover 25, a lower compression cover 27, a sealing plug 30. O-shaped sealing ring 28, tapered connecting shaft 29 and drill chuck 31, the first shaft hole and the second shaft hole are arranged o...

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Abstract

The invention relates to a self-inductive-internal flushing liquid electric spark processing method for metal with an insulating ceramic coating, belonging to the technical field of electric spark processing and forming. In order to solve the technical problem that the metal with the insulating ceramic coating cannot be processed with high quality and high efficiency, the invention provides the self-inductive electric spark processing method, and on the basis, a processing form of the internal flushing liquid of a rotating electrode is adopted. The whole processing process is carried out in an oil-base working liquid. The tubular electrode rotates around the axis and is assisted by a high pressure flushing liquid in an inner hole of the electrode, and flushing by the working liquid has good chip removal effect. A conductive material is arranged on the surface of the insulating ceramic coating, and the conductive material is connected to the positive electrode of a power supply. In the initial processing stage, according to the thermal chemical reaction of electrical discharge processing, a workpiece discharging area is self-induced to generate conductive films which are continuously produced in the processing process, and the process is continuously carried out, so that the insulating ceramic is processed. According to the self-inductive-internal flushing liquid electric spark processing method for the metal with an insulating ceramic coating provided by the invention, micropores of the metal material with the insulating ceramic coating can be processed with high precision and high efficiency.

Description

technical field [0001] The invention belongs to the technical field of electric discharge machining and forming, and in particular relates to an electric discharge processing method for insulating ceramic coated metal. Background technique [0002] Coating the insulating ceramic coating on the metal surface can improve the high temperature resistance and corrosion resistance of the metal material. In order to make the insulating ceramic coating metal meet some special functions, it needs to be processed. However, because the insulating ceramic coating is extremely hard and brittle, it cannot be processed by current machining methods. Since insulating ceramics do not conduct electricity, ordinary EDM methods cannot be processed. [0003] The processing methods currently used include high-voltage glow discharge machining and electrolytic EDM composite machining. High-voltage glow discharge machining is to put insulating ceramic materials between the flat electrode and the po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/00B23H9/00
Inventor 郭永丰张国伟葛世祥侯朋举王力马鑫磊凌泽斌
Owner HARBIN INST OF TECH
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