| Patents for B23H 9 - Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects (3,245) |
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| 09/13/1988 | US4771157 Electrical discharge machining apparatus for forming minute holes in a workpiece |
| 09/06/1988 | US4769118 Process for the curvilinear formation of holes |
| 08/30/1988 | US4767903 Process and apparatus for determining the electroerosive completion of a starting hole |
| 08/17/1988 | CN87208243U Characters-engraving and patterns-engraving apparatus for rollers |
| 08/16/1988 | US4763402 Applying hardenable synthetic resin |
| 08/09/1988 | US4762464 Body shell for a gas-turbine engine |
| 08/03/1988 | EP0276264A1 Process and device for electrochemically machining workpieces. |
| 08/02/1988 | US4761028 Single-piece tweezers |
| 08/02/1988 | US4760762 Method of making die set line |
| 07/26/1988 | US4760233 Drilling confirming apparatus of electric discharge machining system |
| 06/21/1988 | US4752367 Removing a minimum of metal from the anode surface |
| 06/21/1988 | US4752366 Reduction of over-cutting on workpart surface |
| 06/21/1988 | US4751860 Method of making blanking die sets |
| 06/01/1988 | EP0269523A1 Process for manufacturing steel typographical printing elements in series |
| 05/18/1988 | EP0267718A2 Airfoil with diffused cooling holes and method and apparatus for making the same |
| 05/10/1988 | US4743731 Disintegrating electrodes |
| 05/03/1988 | US4742205 Method and device for positioning a metallic piece on a machine-tool, and use of the method |
| 04/12/1988 | US4736656 Extrusion die and manufacturing method of same |
| 04/07/1988 | WO1988002294A1 Device for electro-erosive piercing of openings in parts |
| 04/05/1988 | US4735678 Electrode with negative image cut into end is submerged in dielectric pool; controlled frequency pulsations |
| 04/05/1988 | US4735115 Method for manufacturing throw-away hob |
| 03/23/1988 | CN86108056A Multi-axis electrochemical machining machine useful for machining airfoils |
| 03/16/1988 | CN86102694B Controllable electrolytic honing process and equipment |
| 03/15/1988 | US4731515 Method of making powders by electro-discharge machining in a cryogenic dielectric |
| 03/02/1988 | EP0258019A2 Tool for forming a spinneret capillary |
| 02/18/1988 | DE3626966A1 Verfahren zum elektrochemischen bearbeiten von werkstuecken sowie vorrichtung zur durchfuehrung des verfahrens A method of electrochemical process of workpieces and apparatus for performing the method |
| 02/11/1988 | WO1988000871A1 Process and device for electrochemically machining workpieces |
| 01/27/1988 | CN87209286U Impact graving device for printing roller by electrically controlled mould |
| 01/26/1988 | US4721839 Combined bore seat face grinding, EDM and lapping method for finishing fuel injector nozzle bodies |
| 01/26/1988 | US4721838 Tool for electrical discharge piercing of intricately-shaped holes and method of using same |
| 01/13/1988 | EP0252842A1 Method of making a tool for stamping round shaped watermark screens used to make filigranes and apparatus therefor |
| 12/23/1987 | DE3620839A1 Method for the production of a chain connector by means of electroerosion |
| 12/16/1987 | EP0249552A1 Electrochemical rifling of gun barrels |
| 12/09/1987 | EP0248068A1 Apparatus for the formation of holes. |
| 12/08/1987 | US4711981 Combined wire electrode electrical discharge machine and initial hole forming device |
| 12/01/1987 | US4710279 Aqueous phosphoric and sulfuric acids with stabilizers |
| 11/25/1987 | EP0247022A2 Process for electrochemically machining cutting tools made from high-speed steel or hard metals |
| 11/19/1987 | EP0245545A1 Electrochemical stem drilling electrode mounting |
| 11/10/1987 | US4705932 Electrical discharge boring machine |
| 11/10/1987 | US4705615 Electrode arrangement for the electrochemical metal erosion process for producing a tooth system |
| 10/28/1987 | CN86102694A Controllable electrolytic honing process |
| 10/27/1987 | US4703145 Apparatus for manufacturing a master rack |
| 10/27/1987 | US4703142 Method of combining grinding and EDM operation for finishing fuel injector nozzle bodies |
| 09/30/1987 | CN86108074A Electrolyte chamber with cathode sealing means for ecm machining |
| 09/30/1987 | CN86107838A Electrochemical machining tool able to set workpiece at a slant and with grooved cathod |
| 09/24/1987 | DE3609619A1 Method and apparatus for inscribing cylindrical workpieces |
| 09/16/1987 | CN86108075A Method of electrochemical machining bladed rotors |
| 09/01/1987 | US4690737 In an elongater sealing pressure tube; |
| 08/26/1987 | CN86108055A Electrical continuity clamp for ecm machine |
| 08/19/1987 | CN86108076A Ecm machine with workpart shroud and arbor assembly |
| 08/18/1987 | US4687563 Electrochemical machine apparatus with drill-depth and rate monitor |
| 08/12/1987 | CN86107647A Partially conductive cathode for electrochemical machining |
| 08/11/1987 | US4686020 Method of electrochemical machining bladed rotors |
| 08/11/1987 | US4685185 Method of manufacturing an ink jet head |
| 08/05/1987 | EP0230462A1 Process for sparkerosion or electrochemical machining of tapered gears with hypoid tooth profile or similar parts |
| 08/04/1987 | US4684455 Electrical continuity clamp for ECM machine |
| 07/28/1987 | US4683364 Electrical discharge shape forming and surface conditioning device |
| 07/15/1987 | EP0228772A2 Multi-axis ECM machine useful for machining airfoils of rotors |
| 07/08/1987 | CN86108819A Electrode for machining film cooling passages |
| 07/01/1987 | EP0227581A2 Electrode for machining film cooling passages |
| 07/01/1987 | EP0227227A2 ECM machine with workpart shroud and arbor assembly |
| 07/01/1987 | EP0227226A2 Method of electrochemical machining bladed rotors |
| 07/01/1987 | EP0227225A2 ECM machine with skewed workpart and pocketed cathodes |
| 07/01/1987 | EP0227224A2 Electrical continuity clamp for ECM machine |
| 06/18/1987 | WO1987003522A1 Process for the formation of holes |
| 06/16/1987 | EP0225545A1 Process and means for manufacturing of a ferromagnetic tape coiled and radially slotted annular active part of an electric axial field machine |
| 06/15/1987 | EP0210195A4 Ball-point writing instrument containing an aqueous ink composition. |
| 05/27/1987 | EP0223401A1 Partially conductive cathode for electrochemical machining |
| 05/20/1987 | EP0222023A1 Device for confirming formation of holes in discharge machining apparatus |
| 05/14/1987 | DE3539746A1 Method for producing a thread using the spark-erosion process |
| 05/12/1987 | US4665293 Device for piercing a hole through a metal workpiece by electrical discharge |
| 05/05/1987 | US4663011 Multi-axis ECM machine useful for machining airfoils of rotors |
| 04/14/1987 | US4657649 For oversize airfoil blades |
| 04/14/1987 | US4657645 ECM machine with workpart shroud and arbor assembly |
| 04/09/1987 | WO1987001981A1 Apparatus and method for working electrically conductive materials by electric erosion |
| 03/31/1987 | US4654498 Electrical discharge machining electrode for forming minute holes in a workpiece and electrical discharge machining apparatus employing such an electrode |
| 03/31/1987 | US4653983 Cross-flow film cooling passages |
| 03/26/1987 | WO1987001635A1 Initial hole cutout apparatus |
| 03/24/1987 | US4652316 Production of grain oriented steel |
| 03/17/1987 | US4650949 Electrode for electrical discharge machining film cooling passages in an airfoil |
| 03/12/1987 | DE3531761A1 Process and apparatus for the production of a curved hole |
| 03/05/1987 | DE3618435A1 Method for producing toothings provided on two elements, and mechanism produced according to the method |
| 02/17/1987 | US4644123 Rotary balancing apparatus |
| 02/12/1987 | WO1987000782A1 Process for sparkerosion or electrochemical machining of tapered gears with hypoid tooth profile or similar parts |
| 02/12/1987 | DE3527776A1 Device for the positively engaged conversion of a rotary motion into a reciprocating motion |
| 02/04/1987 | EP0210195A1 Ball-point writing instrument containing an aqueous ink composition. |
| 01/29/1987 | WO1987000468A1 Initial hole machining device for wire-cut electric discharge machine |
| 01/28/1987 | EP0209960A2 Drilling depth and rate monitor |
| 01/27/1987 | US4639568 Apparatus and method for finishing fuel injector spray tips using EDM |
| 01/08/1987 | DE3620965A1 Method for securing the position of a metal component on a spark erosion machine, device for carrying out the method and application of the same |
| 12/30/1986 | US4633053 Electrical discharge machine with automatically replaceable electrodes |
| 12/04/1986 | WO1986006995A1 Device for confirming formation of holes in discharge machining apparatus |
| 11/18/1986 | US4623772 Apparatus and method for EDM polishing |
| 11/05/1986 | EP0199825A1 Method of manufacturing a self-drilling screw |
| 10/22/1986 | EP0198750A1 Method of manufacturing a deviating element for a screw-and-nut assembly with internal ball recirculation |
| 10/09/1986 | WO1986005732A1 Method of making punching dies |
| 10/09/1986 | WO1986005731A1 Method of making a line of dies |
| 09/17/1986 | EP0194734A1 Electrically enhanced liquid jet processing |
| 09/16/1986 | US4612101 Apparatus for the electrochemical etching of grooves of very small width |
| 08/27/1986 | EP0191951A1 Method and device for detecting the electro-erosive completion of a hole |