Array-type combined electrode used for dense group hole electrosparking and preparation method thereof

Abstract

The invention relates to an array-type combined electrode used for dense group hole electrosparking and a preparation method thereof. Aiming at the defects that as for an existing electrode manufacturing technology, the difficulty is large, the efficiency is low, the cost is high, and the electromachining quality and efficiency are difficult to guarantee, by breaking through the key technologies such as extrusion forming manufacturing of standard single electrodes, design of array-type electrode moulds and rapid tightening and disassembling of electrodes, the array-type combined electrode usedfor dense group hole electrosparking and capable of being rapidly assembled and disassembled and flexibly combined and the preparation method thereof are provided. The preparation method comprises the specific implementation steps of design and manufacturing of the standard single electrodes; design and manufacturing of the array-type electrode moulds; design and manufacturing of an electrode base and combined baffles; assembly of a combined electrode tool; assembly of the standard single electrodes; and low-melting-point alloy casting and electrode fixing. The array-type combined electrode used for dense group hole electrosparking and the preparation method thereof have the advantages of low cost, high efficiency, high quality and high reliability, can achieve efficient and high-precision machining of a group hole structure, and meet the machining requirements of products in the military and civilian fields.

Description

technical field [0001] The invention relates to an array-type combined electrode for high-efficiency and high-precision electric discharge machining of a group hole structure and a preparation method thereof, belonging to the technical field of electric discharge machining. Background technique [0002] EDM technology is one of the special processing technologies. It mainly uses the high-temperature ablation phenomenon generated during the pulsed EDM between the tool electrode and the workpiece to erode the workpiece material; in each pulse discharge cycle, the machining process can be roughly divided into It is the following four consecutive stages: (1) ionization and breakdown of the inter-electrode medium to form a discharge channel; (2) thermal decomposition of the medium, melting, vaporization, thermal stripping or overall particle removal of the workpiece material; (3) passing through the medium function, the workpiece material is thrown out of the original interface; ...

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Problems solved by technology

[0007] The present invention aims at the shortcomings of the existing electrode manufacturing technology, such as high difficulty, low efficiency, high cost, and difficulty in guaranteeing the quality and efficiency of electrical processing, etc., by breaking through the standard single-electrode extrusion manufacturing, array electrode mold design, and rapid electrode solidification. Key technologies such as tightness and disassembly provide a new type of dense group hole synchronous electrical machining combined electrode and its manufacturing method that can be quickly assembled and disassembled and flexibly combined. It has the advantages of low cost, high efficiency, high quality, and high reliability. It can realize High-efficiency and high-precision machining of the group hole structure meets the processing requirements of military and civilian products

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