Patents for B23H 9 - Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects (3,245)
12/1993
12/07/1993US5268549 Method and apparatus for destroying a syringe needle
11/1993
11/23/1993US5264675 Method and apparatus for destroying a syringe needle
11/16/1993US5262805 Drive circuits for spark-discharge imaging apparatus
11/10/1993EP0568650A1 Apparatus for destroying hypodermic needles
10/1993
10/27/1993EP0566803A1 Method for the manufacture of extrusion dies, and dies obtained therefrom
10/26/1993US5256262 System and method for electrolytic deburring
10/06/1993EP0563744A2 Method of electrochemical fine processing
10/05/1993USRE34398 Apparatus for and method of manufacturing brush seals
10/05/1993US5249752 Combs for application to suction nozzles for seizing the end of yarns wound in packages
09/1993
09/21/1993US5247151 Mold making process
09/14/1993US5244548 Electrochemical machining
09/07/1993US5243167 Apparatus and method for manufacturing a slotted torque tube
09/07/1993CA1321977C Ecm machine with skewed workpart and pocketed cathodes
08/1993
08/12/1993DE4203657A1 Steam turbine interstage steam flow ring production method - commences with U-section ring which has vanes pressed into EDM produced flange holes and web bored out to create flow passages
08/12/1993DE4203656A1 Wire electrode EDM machine for producing blade root slots in turbine discs - has wire electrode guided parallel to rotor axis on end of fork whose movement is programmed to follow desired slot profile
08/12/1993DE4203655A1 Steam turbine flow guide ring production method - commences with U=section ring which has vanes pressed into EDM produced flange holes and web bored out to create flow passage
08/05/1993WO1993014898A1 Mold making process using electrical discharge machining
07/1993
07/28/1993EP0552602A2 Bonding tools and their fabrication
07/22/1993WO1993014249A1 Methods and apparatus for electrochemical machining
07/13/1993US5227602 Process for manufacturing tooth replacements by spark erosion and device for clamping, inserting and truing plaster models or copper electrodes for the spark-erosion manufacture of tooth replacements
07/06/1993US5225645 Electron discharge machining tool
06/1993
06/30/1993EP0548932A1 Surface layer forming process using electric discharge machining
06/29/1993US5223687 Contacting the metal electrode with the surface of a substrate and moving the area where the electrode contacts the film; film of indium oxide or indium tin oxide
06/23/1993EP0547801A1 Electrical discharge boring apparatus
06/23/1993EP0513228A4 Curved bore drilling apparatus
06/16/1993EP0546225A1 Tool making
06/09/1993CN2135421Y Computer characters carving machine
05/1993
05/25/1993US5213248 Bonding tool and its fabrication
05/18/1993US5211354 Textile core having improved start up groove
05/11/1993CA1317444C Method and apparatus for producing turbine blade roots
05/04/1993US5207385 Fuel injection nozzle
04/1993
04/14/1993EP0536977A1 Surface contouring tool
03/1993
03/30/1993US5197361 Surface contouring tool
03/17/1993EP0276264B1 Process and device for electrochemically machining workpieces
03/10/1993EP0530410A1 Method of producing surgical needle with gut
03/09/1993US5192026 Fuel injectors and methods for making fuel injectors
03/03/1993CN1020025C Process for producing substrate for selective crystal growth
02/1993
02/23/1993US5188514 Process for manufacturing an impeller by electrical discharge machining and articles so obtained
01/1993
01/12/1993US5178742 Method of and apparatus for forming a micromelt structure on an electrically-conductive probe tip
01/05/1993US5176947 Electroerosion printing plates
12/1992
12/30/1992EP0520073A1 Method of continuous processing of wire rod
12/09/1992EP0375774B1 Device for electro-erosive piercing of openings in parts
11/1992
11/24/1992CA1310611C Partially conductive cathode for electrochemical machining
11/19/1992EP0513228A1 Curved bore drilling apparatus
11/12/1992WO1992019410A1 Process and machine for electrical discharge machining of cutting tips
11/12/1992DE4115107A1 Verfahren und maschine zum elektroerosiven bearbeiten von schneidplatten Method and machine for electrical-discharge process of cutting inserts
11/10/1992CA1310073C Laser/edm apparatus drilling precision holes
11/04/1992EP0511557A1 Procedure and equipment for deburring of contact pins
10/1992
10/28/1992EP0199825B1 Method of manufacturing a self-drilling screw
10/27/1992US5159167 Structure for and method of electrical discharge machining
10/14/1992EP0508132A1 Piston slide valve
10/07/1992EP0507553A2 Roll roundness measuring and machining apparatus and method
10/06/1992US5152059 Manufacture of cooled aerofoil blades
10/02/1992CA2063887A1 Roll roundness measuring and machining apparatus and method
10/01/1992WO1992013667A3 Electrochemical machining
09/1992
09/22/1992US5149405 Workpiece with transverse platform; varying field direction of cathode tool
09/08/1992US5145564 Method of and apparatus for producing electrically-conductive probe tips
09/08/1992US5145547 Apparatus for self-induced repair of circuit short and near-shorts
09/02/1992EP0500555A1 Process for manufacturing tooth replacements by spark erosion and device for clamping, inserting and truing plaster models or copper electrodes for the spark-erosion manufacture of tooth replacements.
08/1992
08/26/1992EP0500191A1 Patterned plastic optical components
08/20/1992WO1992013667A2 Electrochemical machining
08/19/1992CN1017879B Electrodes for electrochemically machining airfoil blades
08/11/1992US5138124 Apparatus for destroying hypodermic needles
07/1992
07/29/1992EP0353301B1 Device for making holes in work pieces by electro-erosion
07/28/1992US5134428 Drive circuits for spark-discharge imaging apparatus
07/23/1992WO1992012818A1 Apparatus for destroying hypodermic needles
07/23/1992WO1992011968A1 Drive circuits for spark-discharge imaging apparatus
07/23/1992CA2101171A1 Apparatus for destroying hypodermic needles
07/17/1992WO1992012819A1 Method of and device for continuous processing of wire rod
07/17/1992CA2078335A1 Method of and device for continuous processing of wire rod
07/07/1992US5128802 Patterned plastic optical components
06/1992
06/24/1992EP0491052A1 Method of finishing gear by electrolytically machining and method of machining electrode used therein
06/17/1992EP0490051A1 Improved electroerosion printing plates
06/11/1992DE4038584A1 Electrochemical marking device - with tapered contact head with electrolyte feed channel passing over pattern on workpiece
06/02/1992CA1302514C Electric discharge cutting machine for tubular unit wall
05/1992
05/27/1992CN1016763B Electrolysis combined with radical, tangential and diagonal shaving technology
05/26/1992US5117081 Roll roundness measuring and machining apparatus and method
05/26/1992CA1301857C Low force wire guide for edm machine
05/26/1992CA1301856C Wire guide for electric discharge machine
05/19/1992US5115112 Spark erosion machining device and method for correcting for the wear of a machining electrode
05/06/1992EP0483867A2 Method of discharge processing of semiconductor
05/01/1992WO1992007978A1 A method of producing etched plates for graphic printing and apparatus therefor
04/1992
04/28/1992US5108555 Electrode for electrical discharge machining and process for manufacturing the same
04/14/1992US5104494 Method of restoring solderability
04/07/1992US5102520 Electrodepositing of metal; no hydrogen evolution
03/1992
03/25/1992EP0476856A1 Method of forming electrode pattern
03/24/1992US5098850 Process for producing substrate for selective crystal growth, selective crystal growth process and process for producing solar battery by use of them
03/24/1992US5097637 Multi-disc cutter and method of manufacture
03/17/1992US5096559 Cathode roller mechanism
03/03/1992US5092039 Method of making fuel injectors for internal combustion engines
02/1992
02/25/1992US5091621 Method and apparatus for destroying a syringe needle
02/25/1992US5091067 Method and an apparatus for machining optical components
02/25/1992US5091052 Method for producing individualized labels
02/25/1992US5090121 Apparatus and method for fabricating cirucit pattern on conductive surface of circuit board
02/19/1992EP0471393A2 Electrolytic drilling
02/18/1992US5089681 Electro-discharge machining apparatus
02/18/1992CA1295968C Multi-axis ecm machine useful for machining airfoils of rotors
02/17/1992CA2039105A1 Electrolytic drilling
02/11/1992CA1295575C Ecm machine with workpart shroud and arbor assembly
02/04/1992US5086201 Method and devices for the extraction of a closure plug from a steam generator tube
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