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8183491 Electric discharge machining device using rotating circular blade  
An electric discharge machining (EDM) device includes a circular blade, a motor coupled to the circular blade for rotating the circular blade, and an electric discharge control system operatively...
8178814 Hand-held electro-discharge device  
The hand-held electro-discharge machining fastener removal device of this invention brings an EDM electrode and its supporting ground pin and dielectric fluid structure to a fastener in a...
8164020 Electrode and its use in a metal disintegrator  
A graphite electrode and a holder for the electrode for use in a metal disintegrator, the electrode having a hollow columnar body with a skirt wall open at one end, the skirt wall having a...
8143550 Device for controlling the on and off time of the metal oxide semiconductor field effect transistor (MOSFET), a device spark coating the surfaces of metal workpiece incorporating the said control device and a method of coating metal surfaces using the said device  
The present invention is a device for coating surfaces of metallic work pieces with an electrically conductive material by employing short duration high current packets of pulses in which the work...
8030591 Microreplication on a complex surface  
A cutting tool assembly using a machined tool operating in a plunge mode of electrical discharge machining to make microreplicated features in a work piece having a complex surface. The...
7982157 Method for machining a workpiece  
A method for machining a workpiece which includes a conductor which carries a time-variable current along its longitudinal axis and is guided by an upper guide and a lower guide. A magnetic field...
7964817 Electrical discharge machine apparatus for reverse taper bores  
An electrical discharge machining apparatus having a wire electrode and a guide system for machining reverse-taper bores in a workpiece, particularly cone-shaped bores. A guide body near the...
7952045 Material piece scooping device  
A material piece scooping device, which extracts a material piece from a surface of an object to be scooped by cutting electric discharges between an electric discharge electrode and the object to...
7906743 Gradation twin-wire EDM manufacturing system  
A gradation twin-wire EDM manufacturing system includes a manufacture machine, a wire feeding bobbin set mounted on the manufacture machine, a wire receiving bobbin set mounted on the manufacture...
7772516 Method and apparatus for aligning a machine tool  
A machine tool is provided comprising a base, a slide assembly attached to the base for supporting a tool and translating the tool along an axis, and a workpiece holder attached to the base. At...
7741576 Apparatus and method for hybrid machining a workpiece  
An apparatus and method for hybrid machining a workpiece is disclosed. The apparatus includes a mandrel for supporting the workpiece adjacent a cutter mounted on an arbor. A workpiece is powered as...
7605339 Methods of forming an annular undercut  
A method is provided for electrical discharge machining (EDM) a workpiece to include an annular undercut having a curved cross-sectional shape. The annular undercut is useful, for example, in...
7547859 Method for repairing heat recovery steam generator tube-to-header damage  
A method for repairing a heat recovery steam generator (HSRG) header to tube attachment damage, includes providing an access window in the header opposite the damaged header to tube attachment...
7518081 Electric discharge machining apparatus  
An electric discharge machining apparatus includes a guide electrode that is tubular and receives a small-diameter wire electrode for electric discharge machining. The small-diameter wire electrode...
7462273 Method and apparatus for forming by electrochemical material removal  
When forming metallic components, in particular three-dimensionally curved blades, which constitute a single piece with the blading of turbomachine rotor wheels, the linear oscillation of the...
7301116 Programmed electrode wear compensation device and method for 3D EDM scanning apparatus  
A programmed electrode wear compensation device and method for 3D EDM scanning apparatus has a compensation device which receives raw data about a working path of a working apparatus from a CAD/CAM...
7262382 Process of forming conical holes with an electrical discharge machining system  
An electrical discharge machine is configured to (i) machine at least a portion of a workpiece through electrical discharge between the workpiece and a first machining electrode aligned by the...
7241962 Electrical discharge texturing machine  
A low cost electrical discharge texturing machine which can texture work rolls having a broad range of diameters and lengths either on a production or research and development basis. The machine is...
7214901 Duplex electrical discharge machining  
An electrical discharge machine includes first and second coaxial electrodes and corresponding carriages. A liquid dielectric is channeled between the electrodes and a workpiece which are suitably...
7202439 Small-hole electrical discharge machining device and multiple diesinking-and-small-hole electrical discharge machining device, and method for multiple diesinking-and-small-hole electrical discharge machining with the same device  
A small-hole electrical discharge machining device comprises a diaphragm which can be moved up and down along a notch window provided in a work tank for mounting a work in the work tank in which a...
7030332 Monitoring electrode condition in an electro-discharge machine  
A method and device for monitoring the condition of an electrode in an electro-discharge machine are disclosed. The device includes an electrode detector operable to produce a position signal...
7019247 Electrical discharge machine apparatus with piezo-electric head  
An electrical discharge machining head incorporating piezo-electric motors for controlling motion of a slide assembly. The slide assembly is translatable within a machine base and its motion is...
7019245 Method and apparatus for erosion machining with an electrical contact element  
Apparatus and method for erosion machining a structure comprising one of a metallic structural component, a metallic insert element, and a connecting element, by way of erosion. The apparatus...
7015411 Erosion system having an erosion head for removing metallic connection elements  
Spark erosion system for removing connection elements from a structure (W, 60), having a drill head (3) [(4)?], a rotational drive (10) by means of which a tool is caused to rotate, a positioning...
7004693 Tool, tool holder, and machine tool  
A tool attachable to a spindle of a machine tool by an automatic tool changer in the same way as an ordinary tool, capable of being driven without connecting with an external power supply etc., and...
6969817 Apparatus and method for machining in confined spaces  
A machining apparatus is provided. The machining apparatus includes a discharge machining head assembly and a slide assembly supporting the head assembly. The machining apparatus also includes an...
6933456 Small hole electrical discharge machining method and small hole electrical discharge machining apparatus and electrode inserting method and electrode inserting apparatus  
A small hole electrical discharge machining apparatus includes an electrode holder that holds an upper part of an electrode, an electrode guider that guides a lower part of the electrode, a jet...
6833524 Multi-station electrical discharge machining with manufacturing interrupt reduction  
An electrical discharge machining apparatus is provided with at least two work stations. A first servomotor is mounted above the first and second work stations, and a second servomotor mounted to...
6809283 Noble metal in-situ sampling method and apparatus  
An electric discharge machining sampling apparatus for obtaining samples from a surface of metal components provided. In an exemplary embodiment, the sampling apparatus is operable underwater and...
6808604 Discharge surface treatment electrode, manufacturing method thereof and discharge surface treating method  
WC powder (11) and W powder (12) are mixed and entered in a press mold and compressed and molded, thereby forming a discharge surface treatment electrode (10). Discharge is caused to occur between...
6809285 Micro electro discharge machining method and apparatus  
In a micro electro discharge machining method and apparatus, the shapes of minute holes are transferred to a tool electrode through a plate electrode serving as an intermediate electrode, and a...
6806435 Small hole electric discharge machine drill provided with depth-specific processing means  
A small hole electric discharge machine drill is provided with a depth-specific processor and a tiltable unit operable in fluid. The turntable unit includes a first axis with a first center of...
6797912 Method and a device for manufacturing a stator component or rotor component  
Method and arrangement for manufacturing a disk-shaped or annular stator component or rotor component with a plurality of blades arranged one after another in a path extending around the component...
6787728 Method and apparatus for near net shape rapid rough electromachining for blisks  
A ring or inverted-cup shaped cutting element is used as a tool electrode for electromachining to rough machine the airfoils on blisks to near net shape. The cutting element is rotated and...
6781082 Increased wheel uniformity through EDM process  
An EDM apparatus for reducing wheel runout includes a support structure. The support structure is adapted to support and rotate a vehicle wheel. An electrode is also included for electric discharge...
6759621 Cylindrical hole and form centering and drilling device  
A device for electrical discharge machining at least one rectilinear cooling air passage having a flared opening in the wall of a hollow turbine vane. The device includes at least one forming...
6747238 Apparatus for electrodischarge machining  
An apparatus for electrode charge machining includes a T-shaped quill movable in the vertical direction, at least two linear motor yokes attached to the quill symmetrical about the fixed point of...
6734384 Electrical discharge machine apparatus with improved dielectric flushing  
An electrical discharge machining system for machining a workpiece. The system comprises a wire guide support for positioning and guiding a wire electrode into a desired position relative to the...
6667453 Electric discharge machining method and apparatus with control of rocking function parameters  
In an electric discharge machining apparatus for performing machining while relatively rocking an electrode (18) and a workpiece (W) in a plane vertical to a machining feed direction, there is...
6627838 Small hole electric discharge machine  
A small hole electric discharge machine for forming a small hole in a workpiece by generating electric discharge between a rotating elongate pipe electrode (49) having a diameter of 1.0 mm or less...
6590178 Combination drilling/tapping electric-discharge machining drill  
A combination drilling/tapping electro-discharge machining (EDM) drill capable of selectively operating in hole drilling mode or thread tapping mode is provided. The EDM drill includes a rotation...
6580049 Electric discharge machining method and device  
In an electric discharge machining method and apparatus of dividing a rocking shape for a change in a swing speed and a rocking movement completion determination and determining whether or not a...
6566623 Method and apparatus for electric discharge machining with a dressing tool  
An electrical discharge machining (EDM) apparatus and method is disclosed that utilizes a rotating electrode for performing the EDM operation to form a desired profile in the work piece surface. A...
6563071 Method and apparatus for electrical discharge machining with multiple workstations  
An electrical discharge machining (EDM) apparatus includes a plurality of work stations, where each work station has at least one electrode. The EDM apparatus further includes one or more power...
6538227 Electric discharge machine having a balance device for balancing gravitational force acting on a vertically moveable quill  
An electric discharge machine having an electrode mounting device (42) for mounting a tool electrode, a quill (41) movable in the vertical direction and having the tool mounting device attached to...
6486429 Electric discharge machine and module set for assembly of machine tools  
An EDM machine for machining a workpiece is disclosed. The EDM machine includes a machine frame having a central stationary machine body and a machining electrode to machine the workpiece....
6485630 Method of reducing wear in lubricated metal cutting operation  
A method of reducing cutting tool wear in a lubricated metal cutting operation has been developed. An electrical cutting cell is provided having an anodic conductive cutting tool and a cathodic...
6459063 Apparatus for electrodischarge machining  
An electric discharge machining apparatus includes a first movable body (40, 42, 50) movable along the Z axis, a ball screw (34), a motor (30) for causing rotation of the ball screw, a nut (35),...
6455798 Index apparatus  
A machining center includes a spindle, a main table and an NC device for making a machining relative movement between the spindle and the main table. An index apparatus includes a housing mounted...
6452127 Multi-electrode EDM machine  
An EDM machine with a plurality of separate electrodes selectively driven by the same actuator on the same head of the EDM machine is provided. Preferably, all of the electrodes are not used to cut...
Matches 1 - 50 out of 338 1 2 3 4 5 6 7 >