Dielectric fluid for electric discharge machining a non electrically conductive material

A technology of dielectric liquid and conductive material, applied in the field of dielectric liquid for EDM ablation, can solve problems such as harmful health

Inactive Publication Date: 2009-04-15
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is for example kerosene or other hydrocarbons, which are therefore also problematic because they are harmful to health and are flammable

Method used

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  • Dielectric fluid for electric discharge machining a non electrically conductive material
  • Dielectric fluid for electric discharge machining a non electrically conductive material
  • Dielectric fluid for electric discharge machining a non electrically conductive material

Examples

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Embodiment Construction

[0025] figure 1 Shows a method arrangement for implementing the electrical discharge ablation machining of non-conductive materials according to the present invention, the non-conductive material here in the form of component 1, which is made of ceramics containing zirconia production. The component 1 may be a part of a turbine 100 (Figure 3) or a combustion chamber, such as a rotor blade 120 (Figures 3, 4) or a guide vane 130 (Figures 3, 4). It is also possible that a non-conductive material is, for example, a coating of a turbine blade, where it can be made into a thermal insulation layer.

[0026] A conductive material in the form of a graphite layer is flatly coated on the component 1 as the auxiliary electrode 2. Alternatively, organic compounds or metals, such as zirconium, can also be used as the conductive substance.

[0027] The auxiliary electrode 2 and the working electrode 3 are electrically conductively connected to a generator 4 which applies a suitable voltage to ...

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Abstract

The invention relates to a dielectric fluid (5) for electrical discharge machining an electrically non-conductive material, characterised in that it is of an aqueous solution or an aqueous suspension of at least one carbonaceous substance.

Description

Technical field [0001] The present invention relates to a dielectric liquid used for electric spark ablation processing of non-conductive materials and a method for electric spark ablation processing of non-conductive materials. Background technique [0002] The electric discharge ablation processing method for non-conductive materials has been disclosed in the prior art. The method is also used to create holes in components provided with ceramic coatings. In this way, for example, cooling air holes are generated by spark ablation on a turbine blade with a ceramic heat insulation layer on a metal substrate. [0003] In DE 4102250A1, a method for the ablation of non-conductive materials is generally described. In this method, the non-conductive material is coated with a conductive substance before it is processed. The coating is used as an auxiliary electrode, which produces electrical contact with the working electrode during EDM ablation processing. The non-conductive material c...

Claims

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Application Information

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IPC IPC(8): B23H1/08B23H1/00B23H9/10
CPCB23H1/08B23H9/10B23H1/00
Inventor R·福斯特K·克莱茵U·劳迪恩S·塞特加斯特M·西佩尔R·苏布拉马尼安
Owner SIEMENS AG
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