| 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) |
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| 06/10/1997 | US5637239 Curved electrode and method for electrical discharge machining curved cooling holes |
| 06/04/1997 | EP0776724A2 Electrical discharge power supply circuit |
| 05/28/1997 | CN1150558A Processing solution treatment device for electro-discharge machining device |
| 05/22/1997 | WO1997018052A1 Method and instrument for determining position where wire electrode is in contact with workpiece |
| 05/22/1997 | DE3390011C2 Electric discharge machining appts. pulse power source |
| 05/20/1997 | US5630951 Methods and apparatus for making honeycomb extrusion dies |
| 05/07/1997 | CN1149237A Strike enhancement circuit for plasma generator |
| 04/30/1997 | DE19540352A1 Electrode and electric control circuit for spark-erosive machining |
| 04/30/1997 | CN1148528A Method of discharging processing thin hole of lower mould-hole of printing circuit board mould |
| 04/24/1997 | DE19627497A1 Zündsteigerungsschaltkreis für einen Plasmagenerator Zündsteigerungsschaltkreis for a plasma generator |
| 04/09/1997 | EP0767025A1 Laser guided discharge machining apparatus |
| 04/08/1997 | US5618450 Tool having interchangeable indicia marking electrodes for use in electrical discharge machining |
| 04/08/1997 | US5618449 Compact portable hand-held EDM tool |
| 04/03/1997 | WO1997011808A1 Wire cut electric discharge machining device |
| 04/02/1997 | CN2250832Y Numerically controlled electric spark cutting machine for narrow slits |
| 03/27/1997 | WO1997010917A1 Electrical discharge machining |
| 03/26/1997 | CN1145840A Integrated machining center |
| 03/25/1997 | US5614108 Method and apparatus for fast hole electrical discharge machining |
| 03/20/1997 | WO1997010071A1 A composite-machining center |
| 02/25/1997 | US5605638 Electric discharge machining (EDM) apparatus |
| 02/20/1997 | DE19630868A1 Controlled spark erosion |
| 02/18/1997 | US5603852 Electrical discharge machine with an opposite polarity voltage applied during an electrode jump operation |
| 02/12/1997 | EP0757930A1 Power supply system for an electric discharge machine |
| 02/06/1997 | WO1997003782A1 Processing fluid treatment apparatus for electric discharge machines |
| 01/30/1997 | WO1997002917A1 Highly efficient processing method based on high density radical reaction and using rotary electrode, apparatus therefor and rotating electrode used therefor |
| 01/29/1997 | CN1141606A Power system for electric discharging machine and electric discharge machining method |
| 01/15/1997 | CN1033794C Pulses generator for electrodischarge machining |
| 12/31/1996 | US5589086 Method and apparatus for electrical discharge machining with control of a servomechanism by a position loop and a speed loop |
| 12/18/1996 | EP0295264B2 Electrical discharge machining by redressing electrodes |
| 12/18/1996 | CN1137961A Electric spark staggered expansion machining method of fine-pitch involute gear |
| 12/17/1996 | US5585014 Method and apparatus for electrical discharge machining using variable capacitance and variable inductance |
| 12/11/1996 | EP0747158A1 Power supply system for electric discharge machine and electric discharge machining method |
| 12/03/1996 | US5580469 Electrical discharge machine with prevention of pulse crack phenomenon |
| 11/20/1996 | EP0743122A2 Methods for making extrusion dies |
| 11/20/1996 | CN2240411Y Numerical control wire cutting machine with electric spark high-speed small hole machining function |
| 11/14/1996 | WO1996035544A1 Device for use in electrical discharge machining of work pieces |
| 11/14/1996 | DE19619009A1 Electro-erosion device |
| 11/13/1996 | EP0741625A1 Electrode for electrochemical machining |
| 11/13/1996 | EP0606494B1 Method and apparatus for electrical discharge machining |
| 11/05/1996 | US5572003 Electric discharge machining apparatus with pairs of low inductance and low capacitance conductors |
| 11/05/1996 | US5571426 Method of determining electric discharge machining conditions and electric discharge machining controller |
| 10/29/1996 | US5569394 Electric discharge machining method for insulating material using electroconductive layer formed thereon |
| 10/16/1996 | EP0737931A2 Method and apparatus for deciding trace of tool to be moved |
| 10/16/1996 | CN1133217A Electric spark machining machine-tool |
| 10/15/1996 | US5565115 Container for dielectric for electric-discharge machining |
| 10/09/1996 | EP0631836B1 Power supply circuit for electric discharge machine |
| 10/02/1996 | DE19517548C1 Einrichtung zum funkenerosiven Bearbeiten von Werkstücken Device for electric discharge machining of workpieces |
| 09/25/1996 | EP0733432A1 Device for electric discharge machining |
| 09/18/1996 | CN1131071A Method and equipment for controlling electric spark etching process |
| 09/04/1996 | EP0729823A1 Method for making an electrode for electrical discharge machining by use of a stereolithography model |
| 08/29/1996 | DE19607361A1 NC-regulated spark machining process |
| 08/21/1996 | EP0727871A1 Machine for capacitive discharge electroerosion with control of energy released by a discharge |
| 08/14/1996 | EP0726102A1 Method for deforming a plate and plate suitable therefor |
| 08/14/1996 | CA2169327A1 Method for deforming a plate and a plate suitable therefor |
| 08/13/1996 | US5545870 Electrical discharge machining method and apparaus with non-load time calculation |
| 08/07/1996 | EP0724926A1 Electric discharge machine |
| 08/07/1996 | EP0724925A2 Power supply apparatus for an electric discharge machine |
| 07/24/1996 | CN2231836Y Power for generating high-frequency pulses with big-slope current rising edge |
| 07/24/1996 | CN1127485A Power supply system for an electric discharge machine |
| 07/23/1996 | US5539178 Method and apparatus for controlling the power supply for electrical discharge machine |
| 07/23/1996 | US5539173 Electric discharge machining fluid |
| 07/17/1996 | CN1126645A Electric discharging working apparatus |
| 07/17/1996 | CN1126644A Discharge excitation type pulse laser apparatus |
| 07/16/1996 | US5536427 Non-flammable electric discharge machining fluid including a block copolymer |
| 07/09/1996 | US5534675 Power supply system for electric discharge machines |
| 07/04/1996 | WO1996020061A1 Electrode for electrochemical machining, method of electrochemical machining with said electrode, a bearing and a method of determining a profile using said electrode |
| 06/27/1996 | WO1996019311A1 Power supply system for electric discharge machine and electric discharge machining method |
| 06/19/1996 | CN1032047C Pulse generator for electron discharge machining and method suitable for this |
| 06/06/1996 | WO1996016765A1 Electrode for electrochemical machining |
| 05/29/1996 | CN1123531A Power supply system for an electric discharge machine |
| 05/29/1996 | CN1123208A Wire-cut electric discharge machining apparatus and control method therefor |
| 05/22/1996 | EP0712679A2 Method and apparatus for discharge machining control |
| 05/09/1996 | DE19541031A1 Pulsed excimer laser device |
| 05/08/1996 | EP0558757B1 Method of correcting short-circuiting in wire-cut electrical discharge machine |
| 05/07/1996 | US5514845 Electrode tube for electrical discharge machining and manufacturing method thereof |
| 05/01/1996 | EP0709160A1 Slot fabrication by electrical discharge machining |
| 05/01/1996 | EP0709158A1 Electric discharge machine |
| 04/24/1996 | EP0707916A1 Electric discharge machine and method |
| 04/24/1996 | EP0707915A1 Power supply unit for an electric discharge machine |
| 04/10/1996 | EP0444160B1 Device, standard blanks and standardized electrodes for milling and dye sinking by electroerosion |
| 04/03/1996 | EP0704271A1 Surface preparation for thermal coatings |
| 03/29/1996 | CA2159139A1 Using electrical discharge surface preparation for thermal coatings |
| 03/28/1996 | DE4441055C1 Measurement-based control of spark erosion machining process |
| 03/27/1996 | EP0703035A1 Method and pulse generator for electroerosion machining |
| 03/21/1996 | DE19534739A1 Wire-electrode spark erosive machining installation |
| 03/19/1996 | US5500500 Process and apparatus for electric discharge position detection |
| 03/14/1996 | DE4432193A1 Water jet device for electroerosive processing of workpieces |
| 03/14/1996 | DE19533318A1 Current supply unit for a discharge circuit |
| 03/13/1996 | EP0700745A1 Jump controlling method for die sinking electric discharge machine |
| 03/12/1996 | US5498848 Manganese-zinc ferrite workpiece |
| 03/05/1996 | US5496984 Electrical discharge machine and machining method therefor |
| 03/05/1996 | US5496983 Laser guided discharge machining apparatus and method |
| 02/29/1996 | WO1996005934A1 Electric discharge machine |
| 02/28/1996 | EP0698440A1 Power supply system for an electric discharge machine |
| 02/28/1996 | EP0698439A2 Electrical discharge machine and machining method therefor |
| 02/28/1996 | EP0698438A2 Electrical discharge machine and machining method therefor |
| 02/28/1996 | EP0576679B1 Wirecut electrical discharge machining apparatus |
| 02/15/1996 | DE19529186A1 Detector system for EDM appts. |
| 02/14/1996 | EP0696488A1 A power supply apparatus for electrical discharge machining and an electrical discharge interval control method using the power supply apparatus |
| 02/06/1996 | US5489756 Slot fabrication by electrical discharge machining |