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1. (EP3144090) ELECTRICAL DISCHARGE MACHINING SYSTEM HAVING INDEPENDENT ELECTRODES, RELATED CONTROL SYSTEM AND METHOD

Office : European Patent Office
Application Number: 16188463 Application Date: 13.09.2016
Publication Number: 3144090 Publication Date: 22.03.2017
Publication Kind : A1
Designated States: AL, AT, BA, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
IPC:
B23H 1/02
B23H 7/26
B23H 7/30
B23H 9/10
B23H 9/14
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
02
Electric circuits specially adapted therefor, e.g. power supply, control, preventing short circuits or other abnormal discharges
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
26
Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
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
26
Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
30
Moving electrode in the feed direction
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
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
14
Making holes
CPC:
B23H 1/028
B23H 1/04
B23H 7/265
B23H 7/30
B23H 9/10
B23H 9/14
Applicants: GEN ELECTRIC
Inventors: LUO YUEFENG
MCDOWELL SHAMGAR ELIJAH
Priority Data: 201514854484 15.09.2015 US
Title: (DE) FUNKENEROSIONSSYSTEM MIT UNABHÄNGIGEN ELEKTRODEN, ZUGEHÖRIGES STEUERUNGSSYSTEM UND -VERFAHREN
(EN) ELECTRICAL DISCHARGE MACHINING SYSTEM HAVING INDEPENDENT ELECTRODES, RELATED CONTROL SYSTEM AND METHOD
(FR) SYSTÈME D'ÉLECTROÉROSION DOTÉ D'ÉLECTRODES INDÉPENDANTES, SYSTÈME DE COMMANDE ASSOCIÉ ET PROCÉDÉ
Abstract: front page image
(EN) An electrical discharge machining (EDM) system (2), control system (16) and related methods. Various embodiments include a control system for controlling a plurality of electrode devices (6) in an EDM system (2) to form holes in a workpiece (8). The control system (18) can be configured to perform a process including: initiating a hole formation program for each of the plurality of electrode devices (6); determining whether at least one electrode (10) has completed formation of a corresponding hole in the workpiece (8); and separating the at least one electrode (10) from the workpiece (8) in response to determining that the at least one electrode (10) has completed formation of the corresponding hole.