Electrode wire for wire electrical discharge machine and preparation method of electrode wire

A technology of cutting processing and wire electric discharge, which is applied in the field of electrode wire for wire electric discharge processing and its preparation, can solve the problem that the workpiece cannot be cut with high precision and smooth surface, the efficiency of wire electric discharge processing needs to be improved, and the surface There are no obvious features in the layer fracture structure, and the effect of fast EDM speed, low cost and high tensile strength is achieved.

Active Publication Date: 2019-06-21
NINGBO BODE HIGHTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The continuous β-brass sub-layer in the above-mentioned electrode wire coating is better than the discontinuous sub-layer, and the fracture structure of the surface layer has no obvious characteristics, which is suitable for rough cutting of ordinary workpieces, and cannot cut high-precision, surface Difficult to machine workpieces with clean corners
[0006] To sum up, the wire electrode of the prior art is difficult to cut difficult-to-machine workpieces with high precision and smooth surfaces, and the efficiency of WEDM needs to be improved.

Method used

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  • Electrode wire for wire electrical discharge machine and preparation method of electrode wire
  • Electrode wire for wire electrical discharge machine and preparation method of electrode wire
  • Electrode wire for wire electrical discharge machine and preparation method of electrode wire

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preparation example Construction

[0057] A method for preparing an electrode wire for wire electric discharge machining, comprising the following steps:

[0058] 1) The bus bar is degreased, pickled, water washed and galvanized in sequence to complete the electroplating, and a zinc coating is formed on the surface of the bus bar to obtain the first wire blank; the bus bar is the mother blank of the electrode wire core material, and the zinc coating is also called galvanizing The layer is the parent body of the surface layer;

[0059] 2) performing the first annealing on the wire blank obtained in step 1);

[0060] 3) Stretching the wire blank obtained in step 2) for the first time at a certain stretching speed, and performing stress relief annealing;

[0061] 4) Carrying out the second annealing to the wire blank obtained in step 3);

[0062] 5) The wire blank obtained in step 4) is stretched for a second time at a certain stretching speed, and subjected to stress relief annealing to obtain a wire electrode;...

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Abstract

The invention discloses an electrode wire for wire electrical discharge machine. The electrode wire includes a core material in a silk thread shape and a surface layer covering the surface of the corematerial, wherein the surface layer includes a base layer attached to the surface of the core material, the base layer includes a plurality of irregular polygon large blocks which are intermittentlyattached to the surface of the core material, and first cracks are formed between the adjacent large blocks; the surface layer further includes a face layer attached to the surface of the base layer,a plurality of intermittent polygonal small blocks are attached to the outer surface of each large block, irregular second cracks are formed between the adjacent small blocks, and the face layer is formed by all the small blocks and all the second cracks together. The electrode wire is provided with a net crack structure with the two-stage cracks and can effectively cut hard-machining workpieces with corners. The invention further discloses a preparation method of the electrode wire for wire electrical discharge machine.

Description

technical field [0001] The invention relates to the technical fields of electric discharge wire cutting processing technology and electrode wire, in particular to an electrode wire for electric discharge wire cutting processing and a preparation method thereof. Background technique [0002] Wire electrical discharge machining, English name Wire electrical discharge machine, referred to as WEDM, is a processing technology based on the principle of electric discharge machining, using wire-shaped tool electrodes, that is, electrode wires for precision manufacturing, mainly using cutting methods to process various Various workpieces. Due to the extremely short pulse discharge time of EDM, which belongs to the microsecond level, and the processing is accompanied by complex physical processes such as electricity, magnetism, and heat, and chemical erosion processes. Therefore, during the machining process, within a very short period of time, a discharge channel is generated betwee...

Claims

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Application Information

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IPC IPC(8): B23H7/08B23H7/22
Inventor 梁志宁万林辉林火根吴桐胡美俊
Owner NINGBO BODE HIGHTECH CO LTD
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