Patents
Patents for B23H 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 (3,662)
04/2003
04/10/2003DE20300720U1 Electro-erosion machine tool cathode has electrode mounted in shape memory metal to vary its position with temperature
04/09/2003EP1300213A2 Jump control apparatus for electric discharge shaping/profiling machine
04/08/2003US6544403 Method for manufacturing fluid bearing
04/03/2003US20030062342 Jump control apparatus for electric discharge shaping/profiling machine
04/02/2003CN1104299C Method and device for treating tool surface
03/2003
03/25/2003US6538227 Electric discharge machine having a balance device for balancing gravitational force acting on a vertically moveable quill
03/25/2003US6538226 Load of particles for machining liquids for electro-erosion machines, its process of production, its use and machining liquid containing such a load
03/19/2003EP1293282A1 Liquid feeder for electrodischarge machining
03/18/2003US6533927 Liquid feeder for electrodischarge machining
03/11/2003US6531036 Fabrication of micron-sized parts from conductive materials by silicon electric-discharge machining
03/06/2003US20030042229 Method of making extrusion die with varying pin size
03/05/2003EP1287933A2 Method of making extrusion die with varying pin size
03/05/2003CN1102471C Device and method for positioning electric discharge machine
02/2003
02/25/2003US6525287 Power supply for electro-erosion machine
02/20/2003WO2003013774A2 Spark erosion
02/13/2003US20030030009 Ion beam processing apparatus and method of operating ion source therefor
02/13/2003US20030029843 Electrical discharge machine apparatus with improved dielectric flushing
02/12/2003EP1283084A1 Electric discharge machine and method of electric discharge machining
02/12/2003CN1101291C Processing solution treatment device for electro-discharge machining device
02/11/2003US6517773 Metal stamping dies
02/06/2003US20030024825 Plunge electromachining
02/05/2003CN2533973Y Internal ring workpiece processing machine
02/05/2003CN1395758A Discharge pulse generator
02/04/2003US6515426 Ion beam processing apparatus and method of operating ion source therefor
01/2003
01/29/2003CN1393315A High-and low-voltage combining method and device for pulsive power supply used in electric processing
01/29/2003CN1393314A Power supply with fast deionizing unit for electric processing
01/29/2003CN1099935C Apparatus for electrodischarging machining
01/22/2003CN1392018A Linear cutting discharging processing device and its control method
01/22/2003CN1099336C Electrospark equipment for machining precise fine holes
01/16/2003US20030010755 Nanotube length control method
01/09/2003US20030006721 Discharge pulse generator
01/07/2003US6503387 Method and device for electro-chemical discharge processing with self-acting bubble layer
01/02/2003EP1270128A2 Method and apparatus for electrical discharge machining
01/01/2003CN1388274A Physiochemical electron beam polishing method
12/2002
12/31/2002US6501232 Electric power unit for electric discharge surface treatment and method of electric discharge surface treatment
12/27/2002WO2002102538A1 Wire electric-discharge machining method and device
12/25/2002CN1096910C Method and equipment for controlling electric spark etching process
12/18/2002CN1096326C Electrical discharge machining device
12/18/2002CN1096325C Metal mould surface discharge treatment method, method for making electrode used in metal mould surface discharge and electrode for metal mould surface discharge treatment
12/10/2002US6492611 Method of surface treatment using electric discharge and an electrode
12/10/2002US6492036 Porous electrode wire for use in electrical discharge machining and method of manufacturing the same
12/05/2002WO2002096587A1 Electrical discharge machining apparatus and method
12/05/2002US20020179573 Micro-electro-discharge machining method and apparatus
12/05/2002US20020179572 Electrical discharge machining apparatus and method
12/03/2002US6489582 Non-submersion electrodischarge machining using conditioned water as a medium
11/2002
11/27/2002EP1260312A1 Improvement in and relating to edge grinding
11/26/2002US6486429 Electric discharge machine and module set for assembly of machine tools
11/21/2002US20020170885 Method and apparatus for electrical discharge machining
11/20/2002CN1094407C Discharge surface treating method and discharge electrode for discharge surface treatment
11/19/2002US6482535 Porous electrode wire for use in electrical discharge machining and method of manufacturing the same
11/07/2002US20020162824 Process and device for machining a three-dimensional piece by electroerosive milling
11/07/2002US20020162823 Power supply for electro-erosion machine
10/2002
10/29/2002US6472630 Electrical discharge power supply modular device for electrical discharge machine
10/24/2002DE10142677C1 Electroerosion machine has part of electrode guide arm positioned within heat insulation cabin enclosing work space provided with heat insulation jacket
10/22/2002US6469522 Electrical discharge state detecting device for electrical discharge machining machine
10/17/2002US20020148814 Small hole electric discharge machine drill provided with depth-specific processing means and method of depth-specific processing with small hole electric discharge machine drill
10/17/2002US20020148316 Bevel gear
10/16/2002EP1249641A2 Bevel gear with modified fillet curve radius
10/16/2002EP1249612A1 Method of manufacturing a stator stage for a turbine pump
10/16/2002EP1249294A2 Small hole electric discharge machine drill provided with depth-specific processing means and method of depth-specific processing with small hole electric discharge machine drill
10/16/2002CN2516303Y Double-end electric spark surface-grinding machine
10/15/2002US6465754 Process and device for machining by electroerosion
09/2002
09/26/2002US20020134759 Working fluid processing device of wire electric discharge machine
09/25/2002EP1243372A2 Working fluid processing device of an electric discharge machine
09/24/2002US6454930 Procedure and device for the three-dimensional processing of a work piece by means of electroerosive or electrochemical machining
09/19/2002WO2002072303A1 A method and a device for manufacturing a stator component or rotor component
09/18/2002CN1091015C Appts. for electrodischarge machining
09/17/2002US6452127 Multi-electrode EDM machine
09/12/2002US20020126923 Method for manufacturing fluid bearing and fluid bearing manufactured by the method
09/11/2002EP1238740A1 Process and apparatus for electroerosion milling three-dimensional workpieces
09/11/2002CN1368911A Power supply for electrodischarge machining
09/10/2002US6448529 Electro discharge machining apparatus
09/10/2002US6447376 Conductive grindstone; electrode rotator; pulsed voltage applied between; pressurized mist mixture of water and compressed air; generates uniform, high efficiency sparks
08/2002
08/29/2002WO2002067410A1 Discharge pulse generator
08/29/2002US20020117478 Apparatus for electric discharge micromachining
08/28/2002EP1234630A1 Process and apparatus for electric discharge machining
08/28/2002EP1233854A1 Method for modifying wooden surfaces by electrical discharges at atmospheric pressure
08/27/2002US6441333 Green compact electrode for discharge surface treatment and method of manufacturing green compact electrode for discharge surface treatment
08/22/2002WO2002064298A1 Working-fluid storing device of electrical discharge machining apparatus
08/22/2002US20020113042 Micro electro discharge machining method and apparatus
08/21/2002EP0747158B1 Power supply system for electric discharge machine and electric discharge machining method
08/15/2002US20020110502 Method and device for electro-chemical discharge processing with self-acting bubble layer
08/13/2002US6433295 Surface roughness dependent methods of electric discharge machining and device thereof
08/08/2002WO2002060631A1 Cylindrical hole and form centring and drilling device
08/07/2002EP1228832A1 Device for centering and drilling shapes and cylindrical holes
08/06/2002US6429396 Electric discharge processing power supply having a protection network for the switching element
08/06/2002US6427848 Dual fabrication liquid circulatory system for an electric discharge fabrication machine
08/06/2002CA2311765C Electric discharge machining apparatus
08/06/2002CA2311745C Electric discharge machining apparatus
08/01/2002WO2002058874A1 Electrodischarge wire machining and power supply for electrodischarge wire machining
07/2002
07/24/2002CN1087991C Electrode for green compact for discharge surface treatment, method of producing same, method and apparatus for discharge surface treatment and green compact for discharge surface treatment
07/23/2002US6423920 Electric discharge machining power supply, and electric discharge machining method
07/18/2002WO2002055249A1 Electrical discharge machining apparatus
07/18/2002US20020092832 Discharge processing device
07/18/2002US20020092831 Porous electrode wire for use in electrical discharge machining and method of manufacturing the same
07/10/2002CN2499159Y Fast joint structure for electrode rotary shaft of discharge working machine
07/09/2002US6417480 Method of processing a surface of a mold using electric discharge, an electrode used in such processing and a method of manufacturing such an electrode
07/09/2002US6416283 Electrochemical machining process, electrode therefor and turbine bucket with turbulated cooling passage
07/03/2002CN1086971C Electric discharging working appts.
06/2002
06/27/2002US20020079213 Device for the purification of machining liquids for electroerosion machines
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