Side wall insulation method of micro hole electrolytic machining electrode and application
A technology of side wall insulation and tiny holes, applied in metal processing equipment, manufacturing tools, welding equipment, etc., can solve problems such as insulation failure and insulation layer peeling
Active Publication Date: 2018-05-29
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
However, in the electrolytic machining of tiny holes, it is difficult to insulate electrodes by using the above methods
In addition, the insulation layer obtained by using the above method is easy to peel off during processing, resulting in insulation failure
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[0011] A method for electrolytically machining tiny holes using sidewall insulated electrodes of the present invention will be described below in conjunction with the accompanying drawings, which includes the following steps:
[0012] Step 1. Make the focus of the laser beam on the side wall of the electrode;
[0013] Step 2, controlling the laser processing parameters so that the electrodes are not burned and the side walls of the electrodes are raised with oxides.
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Abstract
The invention relates to a side wall insulation method of a micro hole electrolytic machining electrode, and belongs to the field of micro hole electrolytic machining. The method comprises following processes that a focal point of a laser beam (1) is located on the side wall of the electrode (2), laser machining parameters are controlled, the electrode is not burnt out, and the side wall of the electrode is provided with oxide protrusions (3); the oxide protrusions (3) have the insulation effect, and when the electrode is used for serving as a cathode to carry out micro hole electrolytic machining, electric fields are distributed between the untreated electrode end face and the workpiece in a concentrated manner. The insulation layer on the surface of the insulated electrode is good in adhesion, stripping is difficult, and insulation effectiveness is ensured.
Description
technical field [0001] The invention relates to a side wall insulation method and application of a micro-hole electrolytic machining electrode, which belongs to the field of micro-hole electrolytic machining. technical background [0002] With the development of science and technology and industrial production, the application of pore structure is gradually increasing. According to statistics, about 30% of the total mechanical processing is the processing of holes. At the same time, the time for hole processing is about 25% of the machining time. Nowadays, modern industrial products and daily necessities are developing toward miniaturization, and the demand for micro mechanical products such as ultra-fine and high-precision micro molds and various micro-electromechanical systems is increasing. , automotive piston nozzles, high-density flexible printed circuit boards and other structures have a large number of precise micro-hole structures. Generally speaking, these microp...
Claims
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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/00
Inventor 曲宁松高传平贺海东
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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