| 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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| 05/30/2000 | US6069335 Electric discharge machine |
| 05/25/2000 | WO2000029161A1 Apparatus for electrodischarge machining |
| 05/25/2000 | WO2000029159A1 Discharge surface treating method |
| 05/25/2000 | WO2000029156A1 Discharge surface treating method and discharge electrode for discharge surface treatment |
| 05/25/2000 | WO2000029155A1 Method for treating surface of die by discharge, method for producing electrode for die discharge surface treatment, and electrode for die discharge surface treatment |
| 05/25/2000 | WO2000029154A1 Apparatus for discharge surface treatment and method for discharge surface treatment |
| 05/18/2000 | WO2000027577A1 Method of processing the connecting surfaces between a marine engine frame and the associated bearing support, and an apparatus and use of the method and apparatus |
| 05/11/2000 | DE19849577A1 Verfahren und Vorrichtung zum dreidimensionalen Bearbeiten eines Werkstücks mittels elektroerosiver oder elektrochemischer Bearbeitung Method and apparatus for three-dimensional machining a workpiece by means of electrical discharge or electrochemical machining |
| 05/10/2000 | CN1052178C Nervous network quick feed controller for electric spark machine tool |
| 05/03/2000 | EP0997221A2 Method and device for threedimensional machining of a workpiece by electrochemical or electroerosion machining |
| 05/03/2000 | EP0850121B1 Device for electrochemically machining recesses |
| 04/26/2000 | EP0786303B1 Processing fluid treatment apparatus for electric discharge machines |
| 04/12/2000 | CN1250400A Method of constructing fully dense metal molds and parts |
| 04/11/2000 | US6048474 Dielectric fluid for the machining of metal by means of spark erosion |
| 04/11/2000 | CA2015469C Method and apparatus for non-contact machining with dynamic feedback control |
| 03/28/2000 | US6043447 Discharge machining apparatus |
| 03/28/2000 | US6041499 Method for manufacturing a cylinder for two-stroke internal combustion engine and the cylinder manufactured thereby |
| 03/15/2000 | EP0985438A1 System for the filtration of liquids of machine tool |
| 03/08/2000 | EP0984266A1 Method for determining suitability of a fluid |
| 02/23/2000 | EP0980735A2 Micro-discharge truing device and fine machining method using the device |
| 02/17/2000 | DE19836158A1 Roughening up and activating metallic and conducting surfaces of workpieces with spark plasma has periodically igniting spark plasma formed in reactive gas |
| 02/16/2000 | CN1244449A Process of machining special die for drawing steel bar and wire for prestressed concrete |
| 02/03/2000 | WO2000005024A1 Wirecut electric discharge machining method and apparatus |
| 01/26/2000 | CN2360200Y Director of high speed electrospark small hole processor |
| 01/26/2000 | CN2360199Y Horizontally-placed tyre mould special processing electrospark shaper |
| 01/05/2000 | EP0968062A1 Method of constructing fully dense metal molds and parts |
| 01/04/2000 | US6011230 Apparatus for holding an electrode for electrical erosion machines |
| 12/29/1999 | CN2355838Y Tilting type special electric spark forming machine for tire mould processing |
| 12/28/1999 | US6008461 Wire electrode discharge machining apparatus |
| 12/22/1999 | CN1239027A Discharge processing method and appts. of applicating same |
| 12/22/1999 | CN1047552C Mould making method and forming process for special ceramic board relieves |
| 12/15/1999 | EP0963272A1 Method for electroerosive machining of a work piece and a corresponding device |
| 12/15/1999 | CN2353476Y Novel synchronous impulse power-supply |
| 12/15/1999 | CN2353475Y Impulse power-supply for spark processing |
| 12/09/1999 | WO1999037241A3 Implantable orthopedic prosthesis having tissue attachment surface and method of manufacture |
| 12/08/1999 | CN2352299Y Molybdenum wire conducting wheel of electrospark wire electrode cutting machine |
| 11/30/1999 | US5993638 Method for obtaining well-defined edge radii on cutting tool inserts in combination with a high surface finish over the whole insert by electropolishing technique |
| 11/24/1999 | CN1236337A Porous electrode wire for electric discharge machine and its producing method |
| 11/18/1999 | WO1999058282A1 Electrode of green compact for discharge surface treatment, method of producing the same, method of discharge surface treatment, apparatus therefor, and method of recycling electrode of green compact for discharge surface treatment |
| 11/18/1999 | WO1999058280A1 Method and apparatus for treating surface of tool |
| 11/18/1999 | WO1999058278A1 Electric discharge machining control method and electric discharge machining controller |
| 11/18/1999 | WO1999058277A1 Device and method for positioning electric discharge machine |
| 11/17/1999 | EP0956922A2 Process for electric discharge machining and apparatus therefor |
| 11/17/1999 | EP0803308B1 Wire cut electric discharge machining device |
| 11/17/1999 | CN2348959Y Improved small hole working machine |
| 11/17/1999 | CN1235077A Method and apparatus for control of wire-electrode discharge cutting |
| 11/16/1999 | US5986232 Electrical discharge machining apparatus and electrical discharge machining method |
| 11/11/1999 | WO1999056905A1 Power supply for electric spark machine and method for controlling the same |
| 11/11/1999 | DE19920892A1 Apparatus and method for removal of sludge from a filter used in an electroerosion machine |
| 11/10/1999 | EP0955396A1 Method and apparatus for making wire electrodes for electric discharge machining |
| 11/09/1999 | US5979519 Machine tool having improved means for holding workpieces |
| 11/03/1999 | CN1233547A Automatically controlled mfg. method for non-circular gear wheel |
| 11/02/1999 | US5976330 Device for electrochemically machining recesses |
| 10/26/1999 | US5973498 EDM with jump motion detecting reactive force |
| 10/26/1999 | US5973288 Method and apparatus for controlling spark erosion process |
| 10/26/1999 | US5972209 Fluid system capable of dual functions of circulating water or oil in interchangeable manner; for drilling fine hole in work piece of aluminum, steel, or tungsten steel |
| 10/21/1999 | DE19915067A1 Electric discharge device for creating hole through workpiece |
| 10/20/1999 | EP0950934A1 Method and apparatus of predicting a characteristic of a product attribute formed by a machining process using a model of the process |
| 10/20/1999 | EP0519028B1 Device for cleansing the machining fluid for a spark-erosion or electrochemical processing machine |
| 10/13/1999 | EP0948657A1 MANUFACTURE AND USE OF ZrB 2?/Cu COMPOSITE ELECTRODES |
| 10/07/1999 | WO1999050017A1 Electrodischarge machining power supply with protection circuit for switching element |
| 09/22/1999 | EP0943387A1 Power supply for electric discharge machines |
| 09/16/1999 | WO1999046423A1 Compact electrode for discharge surface treatment and method of manufacturing discharge surface treatment compact electrode |
| 08/31/1999 | US5945009 Apparatus for processing workpieces by spark erosion |
| 08/17/1999 | US5939650 Method for determining suitability of fluid |
| 08/10/1999 | US5935460 Method of performing high-efficiency machining by high-density radical reaction using a rotating electrode, device for performing the method and the rotating electrode used therefor |
| 08/10/1999 | US5935457 Machining fluid processing apparatus for electric discharge machine |
| 08/04/1999 | EP0824389B1 Device for use in electrical discharge machining of work pieces |
| 08/03/1999 | US5933701 Manufacture and use of ZrB2 /Cu or TiB2 /Cu composite electrodes |
| 07/29/1999 | WO1999037241A2 Implantable orthopedic prosthesis having tissue attachment surface and method of manufacture |
| 07/27/1999 | US5927373 Method of constructing fully dense metal molds and parts |
| 07/21/1999 | EP0930131A1 Method of manufacturing porous electrode wire for electric discharge machining and structure of the electrode wire |
| 07/21/1999 | CN2329472Y Electric etching machine for metal |
| 07/13/1999 | US5922221 Supplying fluid comprising titanium carbide powder and dielectric fluid to machining gap and machining using the fluid |
| 07/07/1999 | EP0927592A1 Hard metal alloy electroerosion electrode |
| 07/06/1999 | US5919493 Apparatus for producing shaped articles |
| 07/06/1999 | US5919381 Bipolar electrical discharge machine which detects misfire |
| 07/06/1999 | US5919380 Three-dimensional electrical discharge machining method and apparatus utilizing NC control |
| 06/17/1999 | WO1999029460A1 Method for electroerosive machining of a work piece and a corresponding device |
| 06/15/1999 | US5911888 Structure for EDM machine |
| 06/09/1999 | EP0920946A2 Part fabricating method and part fabricating apparatus |
| 06/09/1999 | EP0920943A2 Method an apparatus for electroerosion finish machining |
| 06/08/1999 | US5909882 Pneumatic driven automatic chuck |
| 06/02/1999 | EP0680801B1 Working liquid detecting apparatus, for wire-cut electric discharge machines |
| 05/25/1999 | CA2161989C Discharge excitation type pulse laser apparatus |
| 05/20/1999 | DE19840470A1 Apparatus for holding an electrode in a spark erosion machine |
| 05/18/1999 | US5904865 EDM control by adjusting the on-time power level |
| 05/14/1999 | WO1999022900A1 Apparatus and method for breaking solid insulator with electric pulse |
| 05/11/1999 | US5903067 Power supply apparatus for electric discharge machine |
| 05/06/1999 | EP0800432B1 Electrode for electrochemical machining, method of electrochemical machining with said electrode, a bearing and a method of determining a profile using said electrode |
| 05/04/1999 | US5900165 Electric discharge machining apparatus |
| 04/27/1999 | US5897792 Power supply system for electrical discharge machining unit, and method for electrical discharge machining |
| 04/20/1999 | US5895311 Abrasive device that maintains normal line of contact with curved abrasive surface and method of using same |
| 04/15/1999 | DE19743529C1 Maschine zum Bearbeiten von Werkstücken mit Schneidzähnen, insbesondere von Sägeblättern Machine for machining workpieces with cutting teeth, especially saw blades |
| 04/08/1999 | WO1999016569A1 Machine for machining workpieces with cutting teeth, especially saw blades |
| 04/01/1999 | DE19840465A1 Method and apparatus for determining the length of an electrode |
| 03/30/1999 | CA2108791C Method of manufacturing electrically conductive elements particularly edm or ecm electrodes |
| 03/11/1999 | DE19739470A1 Spark erosion machine |
| 03/03/1999 | EP0741625B1 Electrode for electrochemical machining |
| 02/23/1999 | US5874703 Method and apparatus for impulse generator for electroerosive machining of workpieces |