PATENTSCOPE will be unavailable a few hours for maintenance reason on Tuesday 19.11.2019 at 4:00 PM CET
Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (EP1998922) METHOD FOR ELECTRICAL DISCHARGE MACHINING OF ELECTRICALLY NON-CONDUCTIVE MATERIAL

Office : European Patent Office
Application Number: 07726391 Application Date: 16.02.2007
Publication Number: 1998922 Publication Date: 10.12.2008
Publication Kind : B1
Designated States: AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LI, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR
Prior PCT appl.: Application Number:EP2007051501 ; Publication Number: Click to see the data
IPC:
B23H 1/00
B23H 7/08
B23H 9/10
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
H
WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
1
Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
H
WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
7
Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
02
Wire-cutting
08
Wire electrodes
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
H
WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
9
Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
10
Working turbine blades or nozzles
CPC:
B23H 1/08
B23H 1/00
B23H 7/34
B23H 9/10
Applicants: SIEMENS AG
Inventors: FOERSTER RALF
KLEIN KARSTEN
LAUDIEN ULRICH
SETTEGAST SILKE
SUBRAMANIAN RAMESH
Priority Data: 06006138 24.03.2006 EP
07726391 16.02.2007 EP
07726391 16.02.2007 EP
Title: (DE) VERFAHREN ZUR FUNKENEROSIVEN BEARBEITUNG EINES ELEKTRISCH NICHTLEITENDEN MATERIALS
(EN) METHOD FOR ELECTRICAL DISCHARGE MACHINING OF ELECTRICALLY NON-CONDUCTIVE MATERIAL
(FR) PROCÉDÉ D'USINAGE PAR ÉLECTROÉROSION D'UNE MATIÈRE NON ÉLECTROCONDUCTRICE
Abstract: front page image
(DE) Die Erfindung betrifft ein Verfahren zur funkenerosiven Bearbeitung eines elektrisch nichtleitenden Materials (1), bei dem auf dem elektrisch nichtleitenden Material (1) eine Schicht aus einer elektrisch leitenden Substanz als Assistenzelektrode (2) aufgebracht wird, dadurch gekennzeichnet, dass die elektrisch leitende Substanz nach der funkenerosiven Bearbeitung durch oxidative Wärmebehandlung chemisch umgewandelt wird.
(EN) The invention relates to a method for electrical discharge machining of electrically non-conductive material (1) in which a layer of an electrically conductive substance is applied as an auxiliary electrode on the electrically non-conductive material (1). Said method is characterised in that the electrically conductive substance is chemically converted by oxidative heat treatment after electrical discharge machining.
(FR) Procédé d'usinage par électroérosion d'une matière non électroconductrice (1), selon lequel une couche constituée d'une substance électroconductrice est appliquée en tant qu'électrode auxiliaire (2) sur la matière non électroconductrice (1). Ledit procédé est caractérisé en ce que la substance électroconductrice est transformée chimiquement par traitement thermique oxydant après l'usinage par électroérosion.
Also published as:
US20100038344WO/2007/110277