Composite electrochemical machining electrode has electrode ends exposed on surface of cast non-electrically conducting block

An electrochemical machining electrode has a composite structure with an outer block of non-electrically conducting material in which one or more electrodes are embedded and part-exposed at one or more places on the block-end surface. The block material is e.g. ceramics, polymer concrete, glass, pla...

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Bibliographic Details
Main Author FOERSTER, RALF
Format Patent
LanguageEnglish
German
Published 05.01.2006
Subjects
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
TRANSPORTING
WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL
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Summary:An electrochemical machining electrode has a composite structure with an outer block of non-electrically conducting material in which one or more electrodes are embedded and part-exposed at one or more places on the block-end surface. The block material is e.g. ceramics, polymer concrete, glass, plaster or plastic. The embedded electrodes are of e.g. metal, graphite, carbon, electrically conducting polymers or fibre bundles. The electrodes are exposed as required by machining the block ends e.g. by abrasion, cutting, polishing or turning. An independent claim is also included for a process to fabricate the composite electrode e.g. by casting, injection moulding, laser sintering, multi-component injection moulding, casting polymer concrete, sintering ceramics, or a suitable combination of these processes following introduction of the electrical conductor into the appropriate form. Es wird eine Komposit-Werkzeugelektrode zur elektrochemischen Materialbearbeitung eines Werkstücks, bestehend aus einem elektrisch nichtleitenden Grundkörper und in diesen eigebetteten Elektrodenteilen aus elektrisch leitenden Materialien, vorgeschlagen. Diese Komposit-Werkzeugelektrode zeichnet sich durch eine besonders hohe Verschleißbeständigkeit und Maßhaltigkeit während des Einsatzes aus. Dadurch wird auch eine homogenisierte Strömung des Elektrolyten bewirkt. Insgesamt führt dies zu einer verbesserten Formgenauigkeit und Oberflächenqualität des erzeugten Werkstücks gegenüber der Bearbeitung mit herkömmlichen Elektroden.
Bibliography:Application Number: DE20041028658