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Graphene electrode

A graphene and electrode technology, applied in the field of drilling electrodes or die electrodes, and wire electrodes, can solve the problems of arc wire damage, interference, short circuit, etc., and achieve the effect of reducing thermal resistance and improving thermal conductivity.

Inactive Publication Date: 2016-08-17
AGIE CHARMILLES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Graphite does therefore not generate any solid fragments that could interfere with the electroerosion process like traditional standard coating materials, such as introducing conductive bridges in gaps, causing short circuits, arcing and even wire damage

Method used

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Embodiment Construction

[0027] For embodiments of the invention, electrode cores made of copper, brass or steel will be covered with the inventive coating. Coatings can be synthesized or deposited on the core by using electrochemical processes. Like coatings made of zinc, zinc and graphene or copper and graphene, graphene coatings can be applied, for example, by such electrochemical processes.

[0028] Another possible embodiment of the invention is a copper or brass core with a first coating of a copper-zinc alloy with a higher zinc content than alpha brass, synthesized over the first coating using an electrochemical process Or deposit a graphene coating.

[0029] In an alternative embodiment, the copper or brass core is replaced by a steel core on which the graphene coating is synthesized or deposited using an electrochemical process. Alternatively, composites containing zinc and graphene or composites containing zinc, copper and graphene may be used as coating materials which are also deposited ...

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Abstract

The application refers to a wire electrode (3) for electrical discharge machines. The inventive wire electrode includes a core (1) - preferably made of copper, brass, molybdenum, tungsten or steel - and a coating (2), which contains according to the invention graphene.

Description

technical field [0001] The invention relates to an electrode for electrical discharge machining (EDM) according to the general part of claim 1 . The invention relates in particular to wire electrodes, drilling electrodes or die-sinking electrodes. Background technique [0002] Wire electrodes are generally known and are used in wire discharge machines (WEDM) for machining workpieces by electroerosion. Wire electrodes are intended to very precisely cut electrically conductive workpieces and form an essential part of the EDM process. Wire electrodes have a brass, copper or steel core and are covered by a coating to allow for higher galvanic erosion performance. [0003] The performance of EDM wire for high-speed cutting is directly related to the electrical properties of the wire in terms of electrical conductivity, thermal conductivity and heat resistance. The higher these conductivities and resistances, the more current and in the shorter time that can be delivered by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/04B23H1/06
CPCB23H1/04B23H1/06B23H7/08C23C16/26C23C16/44C25D9/08C25D13/02C25D13/16
Inventor R.佩雷兹D.莱耶特
Owner AGIE CHARMILLES
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