| Patents for B23H 7 - Processes or apparatus applicable to both electrical discharge machining and electrochemical machining (7,069) |
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| 10/11/1988 | US4777340 Hard, wear, corrosion, shock, rust resistant plated workpiece table |
| 10/11/1988 | US4777337 Containing at least one rare earth metal; detecting processing disturbances |
| 10/11/1988 | CA1242901A1 Variable orbital drive mechanism and method |
| 10/06/1988 | WO1988007429A1 Wire cut electric spark machine equipped with electric shock prevention means |
| 09/28/1988 | EP0284412A2 Automatic voltage switching power source |
| 09/28/1988 | EP0283523A1 Device for control of feeding the electrode tool in electro-erosion machine tools |
| 09/28/1988 | CN87215843U Electronic protector of universal line cutting machine tool |
| 09/21/1988 | EP0283430A2 Electrical discharge machine provided with a tool changer |
| 09/21/1988 | EP0283205A2 Electro-discharge machining apparatus |
| 09/21/1988 | EP0282837A2 Method for the production of an oval wheel |
| 09/20/1988 | US4773030 Method and apparatus for determining the deviation of an electrode wire in a travelling wire EDM apparatus |
| 09/15/1988 | DE3706769A1 Verfahren zur herstellung von formen fuer die herstellung von zahnersatzteilen Process for the manufacture of molds for the manufacture of dentures Share |
| 09/13/1988 | US4771157 Electrical discharge machining apparatus for forming minute holes in a workpiece |
| 09/08/1988 | DE3706490A1 Apparatus and process for electroerosive machining |
| 09/07/1988 | WO1988006429A1 Process for the production of moulds for producing replacement tooth parts |
| 09/07/1988 | EP0281512A1 Device and method for electrical-discharge machining |
| 09/07/1988 | EP0281511A1 Thread-cutting apparatus |
| 09/07/1988 | EP0280735A1 Method of wire cut electric discharge machining |
| 09/07/1988 | CN88101076A Method for the electroerosive machining of electrically slightly or non-conductive workpieces, as well as electro-erosion machine for performing the method |
| 09/06/1988 | US4769520 Apparatus and method for electrical discharge machining of a workpiece with an inclined electrode wire |
| 08/31/1988 | EP0280059A2 Apparatus for the electroerosion machining of non-conducting or low-conducting work pieces |
| 08/31/1988 | CN88211057U Manufacturing device for electromachining electrodes used in the fabrication of small-module gears forging dies |
| 08/30/1988 | US4767905 EDM method and apparatus with trapezoidized short-duration pulses |
| 08/30/1988 | US4767904 Structure and method of incremental orbital electrical discharge machining |
| 08/23/1988 | US4766280 Wire electrode for the spark erosive cutting |
| 08/23/1988 | US4765877 Power supply means for a wire electrode of an electroerosion machine |
| 08/18/1988 | DE3703999A1 Electronic monitoring system for a penetrating electroerosion machine |
| 08/16/1988 | US4764653 Process and apparatus employing electroerosion |
| 08/16/1988 | US4763402 Applying hardenable synthetic resin |
| 08/11/1988 | WO1988005709A1 Electric discharge machine with electrode exchanger |
| 08/11/1988 | WO1988005702A1 Process and device for controlling electric discharge machining processes |
| 08/09/1988 | US4762974 Electrically independent wire electroerosion discharge machine |
| 08/03/1988 | EP0276314A1 Discharge machining controller |
| 07/27/1988 | EP0276195A1 Device and method to prevent a metal wire breakage |
| 07/13/1988 | CN87101259A Method and apparatus for purging eroding zone during electroerosive countersisnking |
| 07/12/1988 | US4757178 Base for setting materials to be processed by NC wire electro-spark processing machine |
| 07/05/1988 | US4755651 Liquid level setting means for electric discharge machine |
| 06/29/1988 | EP0272640A2 Method and device for flushing the erosion zone during electroerosive cavity sinking |
| 06/22/1988 | EP0271583A1 Three-point support guide of wire cut electric discharge machine |
| 06/21/1988 | US4752665 Apparatus for securing waste fragments on a spark erosion machine |
| 06/21/1988 | US4751860 Method of making blanking die sets |
| 06/16/1988 | DE3639801A1 Clamping device for a tool on a machine tool, in particular an electrical discharge sinking machine |
| 06/15/1988 | EP0271439A1 Liquid injection device for electroerosion machining |
| 06/14/1988 | US4751364 Apparatus for cutting a strip or wire-like electrode removed from an electroerosion machine |
| 06/14/1988 | US4751362 Method and apparatus for orienting the guide member of an electrode wire in a travelling wire EDM apparatus |
| 06/14/1988 | US4751361 Automatic TW electroerosion machining system |
| 06/08/1988 | EP0122940B1 System for setting wire-cut electrical discharge machining conditions |
| 06/07/1988 | US4749838 Spark erosion machine with a fixed machine table, removable table plate, and lowerable working container for the dielectric |
| 05/31/1988 | US4748310 Wire feed mechanism of wire electric discharge machine |
| 05/25/1988 | EP0267969A1 Wire cut electric discharge machine having electrically conductive work support bed |
| 05/25/1988 | CN87203732U Multipurpose divider calipers |
| 05/24/1988 | US4746782 Method for securing cut pieces in spark erosive cutting |
| 05/19/1988 | WO1988003454A1 Used wire recovery apparatus of wire cut electric discharge machine |
| 05/18/1988 | CN87106421A Discharge/mechanical-grind combined fabrication method and its equipment |
| 05/17/1988 | US4745253 Device and process designed to automatically hold up and fix in position the parts cut out of a workpiece during electroerosion machining to rough dimensions and application involving the automatic removal of the cutout parts |
| 05/11/1988 | EP0267151A1 Electroerosion machine for the automatic machining according to a closed path |
| 05/11/1988 | EP0266570A1 Device for mounting the electrospark machining electrode |
| 05/10/1988 | US4743730 Device for straightening and cutting metallic wire |
| 05/10/1988 | US4743729 Apparatus for electrical discharge machining of a circumferential section from a bore in a metallic cylinder |
| 05/05/1988 | WO1988003074A1 Electric discharge apparatus |
| 05/05/1988 | WO1988003071A1 Wire cut electrical discharge machine |
| 05/04/1988 | CN87101455A Compound processing equipment of electric spark and ultrasonic wave for polymeric crystal diamond |
| 05/03/1988 | US4742205 Method and device for positioning a metallic piece on a machine-tool, and use of the method |
| 04/27/1988 | EP0264716A1 Wire electrode type electric discharge machining device |
| 04/26/1988 | US4740667 Flow control valve for cooling a wire electrode |
| 04/26/1988 | US4740666 Electrical discharge machining electrode |
| 04/26/1988 | US4739676 Drive for a machine for the manufacture of an electrode-workpiece by means of a form grinding tool of a similar spatial shape |
| 04/21/1988 | DE3625608A1 Clamping device for a tool on a machine tool, in particular a cavity sinking EDM machine |
| 04/19/1988 | US4739145 System for positioning and transferring EDM electrodes |
| 04/19/1988 | US4739144 Wire electrode discharge machining with nozzle gap control |
| 04/19/1988 | US4739143 Discharge machining apparatus with wire electrode reversal |
| 04/12/1988 | US4736656 Extrusion die and manufacturing method of same |
| 04/07/1988 | WO1988002294A1 Device for electro-erosive piercing of openings in parts |
| 04/07/1988 | WO1988002293A1 Device for control of feeding the electrode tool in electro-erosion machine tools |
| 04/07/1988 | DE3631888A1 Electrodischarge wire cutting apparatus |
| 04/05/1988 | US4736086 Taper cutting control unit for wire-cut, electric discharge machine |
| 04/05/1988 | US4736085 Current supplying apparatus for a wire-cut electric discharge machine |
| 03/30/1988 | EP0261547A2 Spark erosion machine for wire machining |
| 03/22/1988 | US4733043 Ram stabilizing circuit for electrical discharge machine |
| 03/22/1988 | US4733041 Wire cut electric discharge machine |
| 03/22/1988 | US4733040 Method for the controlled withdrawal movement of an electrode in an electroerosion machine |
| 03/22/1988 | US4733038 Contact member for supplying electrical current to an electro-erosion wire electrode |
| 03/16/1988 | EP0259691A2 Electrode carrying head for electrochemical machining |
| 03/16/1988 | EP0259661A2 Current conductor for a wire electrode of an electroerosion machine |
| 03/16/1988 | EP0259602A1 Device for determining the position of a wire electrode in an electroerosion apparatus |
| 03/16/1988 | EP0259497A1 Power-feeding device for a wire-cut electric spark machine |
| 03/15/1988 | US4731514 Method for predicting breaking of wire electrode in wire electrode type electric discharge machining operation |
| 03/10/1988 | WO1988001550A1 Wire cut electric discharge machine |
| 03/10/1988 | WO1988001549A1 Apparatus for controlling wire cut discharge machining |
| 03/10/1988 | WO1988001548A1 Processing liquid supply control system for wire cut electric discharge machines |
| 03/09/1988 | CN87207295U Magnetic work-table for wire-cutting machine tool |
| 03/08/1988 | US4730094 Electric spark machining apparatus |
| 03/02/1988 | EP0257487A2 Electrical discharge machining electrode |
| 03/01/1988 | US4728764 Apparatus for detecting discharge gap in electric discharge machining |
| 02/25/1988 | WO1988001216A1 Wire cut electric discharge machining unit |
| 02/16/1988 | US4725706 Tw-electroerosion utilizing cyclically reduced cutting feed rate |
| 02/16/1988 | US4725705 Method and apparatus for electric discharge machining with adaptive feedback for dimensional control |
| 02/16/1988 | US4725704 Travelling wire and cavity sinking EDM apparatus |
| 02/03/1988 | EP0255042A1 Tool holder for a machine tool, especially an electric discharge machine |
| 01/27/1988 | EP0165249B1 Drive for form-grinding a work-piece |