Patents
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)
01/1996
01/23/1996US5486765 Insulating condition detecting apparatus for a wire-cut electrical discharge machine
01/03/1996EP0689893A1 Electric discharge working method and apparatus
01/03/1996EP0689892A1 Method and apparatus for wire cutting electrical discharge machining
01/03/1996CN1114249A Energy recovering type current-limiting circuit for discharge working machine or high-energy oscillatory circuit
12/1995
12/27/1995EP0688624A1 Electric discharge machining method for insulating material using electroconductive layer formed thereon
12/19/1995USRE35125 Pulse control circuit for electric discharge machine using programmable logic
12/12/1995US5475297 Power supply circuit for an electric discharge machine
11/1995
11/29/1995CN2213600Y Multifunction precision plane moving head
11/29/1995CN1112470A Electric discharge machining apparatus
11/29/1995CN1112469A Method of determining electric discharge machining conditions and electric discharge machining controller
11/08/1995EP0680801A1 Working liquid detecting apparatus, for wire-cut electric discharge machines
11/07/1995US5464959 Ion exchange treatment method in producing and recycling aqueous EDM fluid
11/02/1995WO1995029031A1 Power supply system for an electric discharge machine
11/02/1995EP0679467A2 Electric discharge method and its apparatus
10/1995
10/31/1995US5461769 Method of manufacturing electrically conductive elements particularly EDM or ECM electrodes
10/25/1995EP0678356A1 Concentrated electric discharge judgement method and apparatus for wire electric discharge machines
10/25/1995CN1110870A 放电加工装置 Discharge machining apparatus
10/05/1995DE19513593A1 Electronic decoupling circuit for spark erosion machine
09/1995
09/27/1995EP0673702A1 Device and method for electric discharge machining
09/27/1995EP0495985B1 Method and apparatus for electrical discharge machining
09/27/1995CN2208466Y Pulse power source device for electric spark machine
09/26/1995US5453593 Method for classifying discharge machining wave patterns, and method for preventing arcs based on the classification of the discharge machining wave in discharge
09/20/1995EP0672494A2 Process of electric discharge position detection and process of electric discharge machining
09/19/1995US5452069 Spark sampling microparticle generator and method
09/14/1995WO1995024288A1 Jump controlling method for die sinking electric discharge machine
09/14/1995DE19508271A1 Spark erosion
09/13/1995EP0671235A1 Power source apparatus for electrical discharge machining
09/07/1995DE19512291A1 Control and prediction of course of spark erosion process on spark erosion machine
08/1995
08/24/1995WO1995022426A1 Power supply system for an electric discharge machine
08/23/1995EP0668119A2 Method of controlling the operation of an electrical discharge machine
08/22/1995US5444204 Method of and apparatus for electro-erosive machining
08/16/1995CN1106727A Mould making method and forming process for special ceramic board relieves
08/09/1995CN1106327A Network quick feed control device for electric spark machine tool
07/1995
07/19/1995EP0663257A2 Monitor apparatus in an electric discharge machine
07/18/1995US5434381 Apparatus for filtering machining liquid of an electrical discharge machine
07/18/1995US5434380 Surface layer forming apparatus using electric discharge machining
07/04/1995US5429984 Method of discharge processing of semiconductor
06/1995
06/28/1995EP0659514A1 Electric discharge machining apparatus
06/28/1995EP0659513A1 Electric discharge machining
06/28/1995CN1104408A Electrical discharge machining device
06/27/1995US5428201 Method and apparatus for controlling electric discharge machining
06/21/1995CN1028974C Chip removing device of electro-discharge machine
06/14/1995EP0657243A1 Electric discharge machining device
06/14/1995EP0657242A1 Discharge device of wire-cutting electric discharge machine
06/14/1995EP0657241A1 Wire-cut electrical discharge machine
06/06/1995US5422455 Electrical discharge machine with secondary electrode for corrosion prevention
05/1995
05/24/1995CN2198061Y Seal and electric conducting device of small hole machine tool major axis
05/16/1995US5416290 Electric discharge machine power supply circuit
05/11/1995WO1995012471A1 Working liquid detecting apparatus, for wire-cut electric discharge machines
04/1995
04/26/1995EP0649698A1 Apparatus for electric discharge machining
04/26/1995EP0649697A1 Apparatus for electric discharge machining, and method for setting machining condition for the apparatus
04/26/1995EP0649696A1 Method for classifying discharge machining wave patterns, and method for preventing arcs based on the classification of the discharge machining wave in discharge machining apparatus
04/26/1995EP0649695A1 Method of manufacturing electrically conductive elements, in particular electrodes for electrical discharge machining
04/26/1995CN1101869A Electrical discharge machine
04/25/1995US5410118 Method and device for controlling a spark erosion machine
04/20/1995WO1995010383A1 Device and method for electric discharge machining
04/20/1995WO1995010382A1 Concentrated electric discharge judgement method and apparatus for wire electric discharge machines
04/20/1995DE4436821A1 Function generator and method for microparticle sampling
04/18/1995US5408063 Fluid flushing device
04/05/1995CN1100981A Electrical discharge machine
04/05/1995CN1100980A Method and apparatus for electrical discharge machining using variable capacitance and variable inductance
03/1995
03/29/1995EP0644811A1 Electrical discharge machining device
03/22/1995EP0345353B1 Machining center
03/21/1995US5399826 Electric discharge machining apparatus
03/21/1995US5399825 Inductor-charged electric discharge machining power supply
03/15/1995EP0642868A1 Electroerosion machine with novel frame structure
03/15/1995EP0642867A1 Constructional aspects of an electroerosion machine
03/09/1995WO1995006536A1 Power source apparatus for electrical discharge machining
03/07/1995US5396040 Device, standard blanks and standardized electrodes for electro-discharge milling
02/1995
02/28/1995US5393947 Method and device for controlling a wire cut electric discharging machine
02/22/1995EP0639421A1 Thin, rotating electrode for electric discharge machining a hollow three dimensional contour
02/22/1995EP0639420A1 Method and apparatus for electric discharge machining a hollow three dimensional contour using a thin, rotating electrode
02/15/1995CN2189506Y Deep-hole compound processing device
02/01/1995EP0636444A1 Method and apparatus for discharge machining control
01/1995
01/31/1995US5386095 Electric discharge machine power supply with current control at variable levels
01/31/1995US5386094 Electrical discharge machine with automatic filtering
01/19/1995DE4422820A1 Electrical discharge machining unit
01/18/1995EP0634243A1 Electrode tube for electrical discharge machining and manufacturing method thereof
01/12/1995DE4422967A1 Electrical discharge machine (spark erosion machine)
01/12/1995DE4422834A1 Method and device for electrical discharge machining using variable capacitance and variable inductance
01/10/1995US5380975 Electric discharge machining apparatus
01/05/1995WO1995000278A1 Discharge device of wire-cutting electric discharge machine
01/05/1995WO1995000277A1 Wire-cut electrical discharge machine
01/04/1995EP0631837A1 Embossing roll manufacture
01/04/1995EP0631836A1 Power supply circuit for electric discharge machine
01/03/1995US5378866 Electric discharge machining system having a secondary power supply including a controllable voltage source and impedance
12/1994
12/28/1994CN2186131Y Step-by-step point processing device
12/22/1994WO1994029059A1 Electric discharge machining device
12/20/1994US5374798 Electric power-source apparatus for discharge processing machine
12/20/1994US5374795 Wire cut electric discharge machine
11/1994
11/29/1994US5369240 Graphite matrix electrode with dispersed silicon particles
11/29/1994US5369239 Method and apparatus for sink-type electrical discharge machining with control of pyrographite buildup
11/24/1994WO1994026454A1 Apparatus for electric discharge machining
11/24/1994WO1994026453A1 Apparatus for electric discharge machining, and method for setting machining condition for the apparatus
11/09/1994EP0436029B1 Pulse controller of electric discharge machine
11/08/1994US5362936 Wire electric discharge machine having alterable discharge period
11/08/1994US5362375 Oil compositions
11/01/1994US5360957 Controlled apparatus for electrical discharge machining
10/1994
10/26/1994EP0427876B1 Electric spark machining electrode and method of production thereof
10/25/1994US5359169 Electric discharge machining method and apparatus
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