| Patents for B23H 7 - Processes or apparatus applicable to both electrical discharge machining and electrochemical machining (7,069) |
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| 06/20/1989 | US4841126 Rotary table wire EDM machine |
| 06/14/1989 | EP0319553A1 Process and device for controlling electric discharge machining processes |
| 06/14/1989 | CN1033357A Method and equipment for improving quality of work piece surface |
| 06/13/1989 | US4839817 Numerically controlled apparatus including shunting controller |
| 06/13/1989 | US4839488 Electric discharge machine using a ceramic filter to filter the working fluid |
| 06/13/1989 | US4839487 Wire electrode for wire-cut electrical discharge machining |
| 06/07/1989 | EP0318639A1 Electrical discharge machining tool |
| 06/07/1989 | EP0155323B1 Wire type electric discharge machining method |
| 06/07/1989 | CN1033251A Machine for cutting by spark erosion |
| 06/06/1989 | US4837416 Cut wire for electrical discharge machining |
| 06/06/1989 | US4837415 Wire electrode type electric discharge machining apparatus |
| 06/01/1989 | WO1989004739A1 Automatic wire connecting method |
| 06/01/1989 | WO1989004738A1 Method and apparatus for detecting machining conditions of a wire-electrode discharge machine |
| 05/31/1989 | EP0124611B1 A wire-cut taper machining method |
| 05/24/1989 | EP0148954B1 Apparatus for guiding wire electrode of wire-cut electric discharge machine |
| 05/23/1989 | US4833291 Three-point support guide of a wire electric discharge machine |
| 05/23/1989 | US4833290 Electric discharge wire cutting conditions varied with nozzle height and liquid pressure |
| 05/23/1989 | US4833289 Electric discharge machining control apparatus |
| 05/18/1989 | WO1989004232A1 Discharge position detector in a wire electrode discharge machine |
| 05/16/1989 | EP0375774A4 Device for electro-erosive piercing of openings in parts. |
| 05/10/1989 | EP0314796A1 Wire cut electric spark machine equipped with electric shock prevention means |
| 05/10/1989 | CN2037281U Precision translational head |
| 05/10/1989 | CN1032757A Spark erosion machine |
| 05/09/1989 | US4829151 Wire electrode discharging machine with a tracer unit for wire positioning |
| 05/05/1989 | WO1989003743A1 Wire connection completion detector |
| 05/05/1989 | WO1989003742A1 Large taper machining method using wire electric discharge machine |
| 05/03/1989 | EP0314073A1 Erosion machine with a device for compensating the wear of an electrode and method |
| 05/03/1989 | CN1032633A Multifunction plate-cutting machine with electrosparking cutting disk |
| 05/02/1989 | US4826580 Method and apparatus for finishing cut surface of work produced by wire cut discharge process |
| 04/26/1989 | EP0313049A1 Device for machining workpieces by electro-erosion |
| 04/26/1989 | EP0312674A1 Erosion electrode, in particular a wire electrode for electrical discharge machining |
| 04/25/1989 | US4825030 Device and process for preventing the breaking of a metal wire |
| 04/25/1989 | US4825029 Spark erosion system for reducing the height of a honeycomb seal |
| 04/25/1989 | US4824085 Device for holding and handling a flat object |
| 04/20/1989 | WO1989003271A1 Wire driving apparatus for wire electric discharge machines |
| 04/20/1989 | WO1989003270A1 Spark erosion machine |
| 04/19/1989 | EP0312056A1 Electroerosion machine |
| 04/19/1989 | EP0311918A2 Wire electrode gripping device for an electroerosion machine |
| 04/18/1989 | US4822970 Method and apparatus for purging the eroding zone during electroerosive countersinking |
| 04/11/1989 | US4820895 Electric discharge machine position finding apparatus |
| 04/11/1989 | US4820894 Electro-erosion machine for automatic machining according to a closed trajectory |
| 04/04/1989 | US4818848 Automatic wire connecting apparatus for wire cut electric discharge machine |
| 03/28/1989 | US4816636 Wire cut electric discharge machine |
| 03/22/1989 | CN2034492U Multipurpose big power electrical spark discharge strengthening equipment |
| 03/21/1989 | US4814574 Device for injection of liquid for machining by electroerosion |
| 03/21/1989 | US4814573 Electrical discharge machining apparatus with exchangeable electrode refeed cartridge |
| 03/21/1989 | US4814572 Apparatus for detecting completion of automatic wire setting |
| 03/21/1989 | US4814052 Method for the electrochemical processing of workpieces |
| 03/15/1989 | EP0306902A1 Electric discharge machining method and apparatus for machining a microshaft |
| 03/15/1989 | EP0306503A1 Electric discharge machine with electrode exchanger |
| 03/09/1989 | WO1989001846A1 Drive mechanism for producing planetary motion |
| 03/02/1989 | DE3728029A1 Apparatus and method of recording, representing and optimising the process quality at the working gap of an electrical discharge machining unit |
| 03/01/1989 | EP0304882A1 Machine for electroerosion cutting |
| 02/28/1989 | US4808787 Wire-cut electrical discharge machining equipment |
| 02/28/1989 | US4808786 Wire electrode type electric discharge machining device with preventable application of external force to its lower arm |
| 02/28/1989 | CA1250623A1 Electrode wire for use in electric discharge machining and process for preparing same |
| 02/23/1989 | WO1989001378A1 Wire feeder |
| 02/21/1989 | US4806721 Wire electrode for wire-cut electrical discharge machining |
| 02/21/1989 | US4806720 Method and apparatus for wire-cut electrical discharge machining |
| 02/21/1989 | US4806719 Method and device for monitoring a spark-eroding process in a spark-eroding machine |
| 02/15/1989 | EP0303240A1 Installation and method to filter a machining fluid in an uninterrupted supplying circuit |
| 02/14/1989 | US4804814 Electron discharge machining tool |
| 02/07/1989 | USRE32855 Capacitor-type pulse generator for electrical discharge machining, especially for wire-cutting EDM |
| 02/07/1989 | US4803328 Wire guide for electric discharge wire cutting |
| 02/07/1989 | US4803327 Electrical power feeder for a wire electrode type electrical discharge machining apparatus |
| 02/07/1989 | US4803326 Wire-cut electric discharge machine in which two adjoining segments of a common electrode effect machining |
| 01/31/1989 | US4801779 Wire electrode type electrical discharge machining equipment |
| 01/26/1989 | WO1989000475A1 Automatic programming method |
| 01/18/1989 | CN2030926U Automatic deepth controlling circuit device for electric processing |
| 01/10/1989 | US4797526 Method for wire-cut electric discharge machining utilizing adjoining segments of a common electrode |
| 01/10/1989 | CA1248496A1 Electro-discharge wire electrode of copper-zinc- silicon alloy |
| 01/04/1989 | EP0298028A2 Device for handling electrodes in an electroerosion machine |
| 01/04/1989 | CN2030125U Numerically-controlled cutting device for cutting large-slope hollow mould |
| 12/28/1988 | EP0297034A2 Magazine with changing device |
| 12/14/1988 | EP0295206A1 Device for mounting tool in different directions |
| 12/13/1988 | US4791264 Low force wire guide for EDM machine |
| 12/07/1988 | EP0294082A2 Electrical discharge apparatus |
| 12/07/1988 | EP0293673A2 Method and apparatus for mechanical grinding of workpieces by electric conductive worktools |
| 12/07/1988 | CN87213892U Electric spark cutting machine tool with high-speed travelling filament closing device |
| 12/06/1988 | US4789447 Apparatus for working electrically conductive materials by electric erosion |
| 12/06/1988 | CA1246105A1 Apparatus for the clamping of elongate workpieces |
| 12/01/1988 | WO1988009238A1 Electrode for electric spark cutting |
| 11/29/1988 | US4788400 Wire cut electric discharge machine equipped with a conductive work table |
| 11/23/1988 | EP0292440A1 Method of electroerosion cutting |
| 11/22/1988 | US4786776 Holding and reference system for a wire spark-erosion machine |
| 11/22/1988 | US4786062 Apparatus for clamping non-rotating work pieces |
| 11/22/1988 | CA1245301A1 Remotely actuated metal disintegration machining apparatus |
| 11/08/1988 | US4783583 Electric discharge machining apparatus of wire-cutting type |
| 11/02/1988 | EP0289454A2 Method and device for controlling the machining process in electroerosion |
| 11/02/1988 | EP0288656A2 Low force wire guide for EDM machine |
| 11/01/1988 | US4782203 Wire guide for electric discharge machine |
| 10/26/1988 | EP0287777A2 Clamping device for tools or work pieces having a cylindrical shaft |
| 10/19/1988 | EP0286779A2 Wire guide for electric discharge machine |
| 10/19/1988 | EP0286686A1 Processing liquid supply control system for wire cut electric discharge machines |
| 10/19/1988 | EP0286685A1 Method of controlling wire cut discharge machining |
| 10/19/1988 | EP0286684A1 Wire cut electric discharge machine |
| 10/19/1988 | CN87212711U Toothless belt type positive pole machinery metal cutting machine |
| 10/18/1988 | US4778973 Wire guidance arrangement for guiding a wire electrode of a spark erosion machine |
| 10/18/1988 | US4778972 Method and apparatus for repeatedly and automatically threading the wire electrode of an EDM apparatus |
| 10/12/1988 | EP0286585A2 Electroerosion machine tool with a rotary drive device |