| 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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| 03/25/1986 | US4578556 Method of machining a conductive workpiece |
| 03/19/1986 | EP0174372A1 Power source for electric discharge machining |
| 03/19/1986 | CN85202070U Large-taper cutting device for eletric spark linear cutting lathe |
| 02/19/1986 | EP0171668A1 Electric discharge machining electrode |
| 02/13/1986 | WO1986000841A1 Device for electric discharge broaching of openings in parts |
| 02/13/1986 | WO1986000840A1 Electrode-instrument and methods for electric discharge broaching of openings in parts |
| 02/12/1986 | EP0171196A2 Electroerosion machine |
| 01/28/1986 | US4567342 Method and apparatus for controlling direction reversal in electric discharge machines |
| 01/16/1986 | WO1986000250A1 Power source for discharge machining |
| 01/16/1986 | WO1986000249A1 Electric circuit for electroerosion machining |
| 01/16/1986 | WO1986000248A1 Electric circuit for electroerosion machining |
| 01/08/1986 | EP0166786A1 Positioning apparatus for electric discharge machine |
| 12/04/1985 | EP0162926A1 Apparatus for supplying working fluid in electric discharge machine |
| 11/19/1985 | US4554428 Electrospark machining control device |
| 11/13/1985 | EP0160995A2 Circuit arrangement for generating erosion impulses in a spark erosion installation |
| 11/13/1985 | EP0160989A2 Impulse generator for the spark erosion machining of metal |
| 11/05/1985 | US4551809 Apparatus and method for monitoring the machining conditions of an EDM apparatus |
| 11/05/1985 | US4551603 Device and method for surfacing a workpiece |
| 11/05/1985 | US4551602 Electrical machining using an aqueous solution with a recycled surface active agent |
| 10/23/1985 | EP0159109A1 Apparatus for detecting discharge gap in electric discharge machining |
| 10/22/1985 | US4549062 Low-power availability protection for electrical machining apparatus |
| 10/16/1985 | EP0157885A1 Power supply apparatus for wire-cut electric discharge machining |
| 10/10/1985 | WO1985004353A1 Power source for wire cut electrospark machining |
| 10/09/1985 | EP0034626B1 Cut-off protection system for electrical discharge machining apparatus |
| 09/24/1985 | US4543460 Generic electrode EDM method and apparatus, and assembly for maintaining chip concentration in the gap at an enhanced level |
| 09/24/1985 | US4543050 Tire manufacturing mold |
| 09/12/1985 | WO1985003894A1 Power source for electric discharge machining |
| 09/03/1985 | US4539458 Non-immersion EDM method and apparatus |
| 08/20/1985 | US4536633 Dielectric fluid for electrical discharge machining |
| 08/13/1985 | US4535217 Method for the prevention of arcing in a spark erosion process |
| 08/07/1985 | EP0150220A1 Contact sensing apparatus for an electric discharge machine |
| 08/06/1985 | US4533811 Method for automatic process control in spark erosive machining |
| 07/10/1985 | EP0147473A1 Power source for electrical discharge machining |
| 07/09/1985 | US4527729 Die forming method |
| 07/04/1985 | WO1985002800A1 Positioning apparatus for electric discharge machine |
| 07/03/1985 | EP0146635A1 System for controlling retraction of electrode of electric discharge machine |
| 07/02/1985 | US4527034 Electrode positioning method and apparatus for NC-EDM |
| 06/06/1985 | WO1985002358A1 Power source for electrical discharge machining |
| 06/04/1985 | US4521328 Method of making carbon material |
| 06/04/1985 | CA1188373A1 Electric discharge machine current cutoff control |
| 05/09/1985 | WO1985001902A1 Apparatus for supplying working fluid in electric discharge machine |
| 05/07/1985 | US4516009 Capacitor-type HF power supply for electrical machining |
| 05/02/1985 | EP0139016A1 Numerical control method and apparatus for electric-discharge machining |
| 04/30/1985 | US4514611 Method of controlling electric discharge machine |
| 04/25/1985 | WO1985001685A1 Power supply apparatus for wire-cut electric discharge machining |
| 04/02/1985 | US4508950 EDM Method and apparatus using liquid hydrocarbon decomposition yielded gases and a deionized water liquid |
| 03/26/1985 | US4507533 Power supply circuit for electrical machining |
| 03/20/1985 | EP0134679A1 An electroerosive machining method and apparatus |
| 03/19/1985 | US4506133 Dynamic balancing machine using EDM |
| 03/13/1985 | EP0134191A1 Machining fluid for electric discharge machining |
| 03/12/1985 | US4504722 Fully automated machining apparatus optimization for electric discharge machining apparatus |
| 03/05/1985 | US4503309 EDM Method and apparatus with successive trains of intermittently enlarged elementary pulses |
| 02/13/1985 | EP0132935A1 EDM using hydrocarbon and water liquids |
| 02/13/1985 | EP0132599A1 Tool magazine with a tool changing device |
| 01/31/1985 | WO1985000311A1 Contact sensing apparatus for an electric discharge machine |
| 01/17/1985 | WO1985000128A1 Power source for electrical discharge machining |
| 01/01/1985 | US4491714 Method of and apparatus for electrical discharge machining using a gas dissolved water liquid |
| 12/20/1984 | WO1984004895A1 System for controlling retraction of electrode of electric discharge machine |
| 11/21/1984 | EP0125812A1 A machining centre |
| 11/20/1984 | US4484051 Breakthrough detection means for electric discharge machining apparatus |
| 11/14/1984 | EP0124625A1 Electric discharge machining control circuit |
| 10/31/1984 | EP0123436A2 A method of, and apparatus for, electrical discharge machining a workpiece |
| 10/09/1984 | US4476369 EDM Method of and apparatus for machining cavities using a plurality of independently movable segmented electrodes |
| 10/02/1984 | US4475025 Cycle timer circuit for electrical discharge machining |
| 09/27/1984 | WO1984003652A1 Numerical control method and apparatus for electric-discharge machining |
| 09/25/1984 | US4473733 EDM Method and apparatus using hydrocarbon and water liquids |
| 09/11/1984 | US4471200 Method for manufacturing tire molding metal molds with a two-stage electrical discharge machining process |
| 09/11/1984 | US4471199 EDM Of a roll using segmented electrode short-circuited in the rough machine step |
| 09/11/1984 | US4471198 Cut-off protection system for electrical discharge machining apparatus |
| 09/11/1984 | US4470896 Internal or external dielectric distributor for electrodes |
| 09/04/1984 | US4469654 EDM Electrodes |
| 08/22/1984 | EP0064070B1 Device for orienting a guiding head of an electro-erosion cutting machine |
| 07/18/1984 | EP0064069B1 Device for orienting the guiding head of an electro-erosion cutting machine |
| 07/10/1984 | US4459453 Method of electrical-discharge-machining a conductive workpiece with a carbonaceous electrode |
| 07/10/1984 | US4459190 Method of and apparatus for machining a 3-D cavity in a workpiece |
| 07/03/1984 | US4458190 Electric discharge machining control device |
| 06/05/1984 | US4453069 EDM Pulse forming circuit arrangement and method |
| 05/24/1984 | WO1984001915A1 Electric discharge machining control circuit |
| 05/22/1984 | US4450337 EDM Method and apparatus with a continuous DC supply using stray gap capacitance to trigger discharge |
| 05/22/1984 | US4450336 Super-fine finish EDM method and apparatus |
| 05/08/1984 | US4447713 Power supply unit for electric discharge machine |
| 05/08/1984 | US4447696 Process and apparatus for high frequency discharge shaping of a workpiece by means of a rectangular bipolar pulsating voltage |
| 05/08/1984 | US4447695 Inverter-type power supply circuit for electrical machining |
| 04/17/1984 | US4443682 Superimposed high striking voltage power supply circuit for electrical discharge machining |
| 04/17/1984 | US4443680 Methods and apparatus for electrical discharge machining |
| 04/10/1984 | US4442333 Capacitor-type pulse generator for electrical discharge machining, especially for wire-cutting EDM |
| 04/04/1984 | EP0104261A1 Machining solution for electric discharge machining |
| 04/03/1984 | US4441005 For an electrical discharge machining apparatus |
| 04/03/1984 | US4441004 Multiple pipe element electrode assembly EDM method and apparatus |
| 03/27/1984 | US4439659 Electrode feed system in electrical machining, capable of quick-response electrode retraction and reciprocation |
| 03/13/1984 | US4436976 Electroerosion machining method and apparatus with automatic vibrations-sensing electrode wear compensation |
| 02/28/1984 | CA1162989A1 Electrical discharge machining power supply circuit |
| 02/14/1984 | US4431895 Power source arrangement for electric discharge machining |
| 02/07/1984 | US4430544 EDM Machine tool with compounded electrode-reciprocation and servo-feed drivers |
| 02/07/1984 | US4430180 Apparatus for and method of electroerosively drilling a thin hole in a workpiece |
| 02/01/1984 | EP0099613A1 Method for the prevention of arcing in a spark erosion process |
| 01/25/1984 | EP0099004A1 Cutting die, in particular for contour-cutting, and a method of manufacturing it |
| 01/24/1984 | US4427871 Power supply system |
| 01/18/1984 | EP0098711A1 Electrical machining system and method of processing a machining liquid therein |
| 01/11/1984 | EP0098126A2 Method and apparatus for controlling direction reversal in electric discharge machines |