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| Number | Title | Issue Date |
| 8138441 | Step-down plunge electrodischarge machining A method of machining a pattern at a plurality of locations in a workpiece includes positioning a shaped electrode including the pattern at the plurality of locations in a sequence. In some embodiments, the sequence is random. The method further includes forming the... | 03/20/2012 |
| 8138442 | Wire electric discharge machining method, semiconductor wafer manufacturing method, and solar battery cell manufacturing method Provided are a wire electric discharge machining method for poorly conductive materials, such as solar cell silicon, and a semiconductor wafer manufacturing method and a solar battery cell manufacturing method based on the wire electric discharge machining method. E... | 03/20/2012 |
| 8093528 | Method and device for electrical discharge machining A method for electrical discharge machining a workpiece includes dividing machining time into a sensing interval during which reference values are captured from machining pulses and into a machining interval during which no reference values are captured. The sensing... | 01/10/2012 |
| 8093527 | Device and method for high frequency electrical discharge machining The invention relates to a device and a method for electrical discharge machining of a work piece by means of a working electrode. A sequence of working pulses is applied on the work gap between the working electrode and the work piece. The working pulses comprise e... | 01/10/2012 |
| 8003912 | Method for manufacturing a machine housing having a surface-hardened fluid chamber Method for manufacturing a machine housing having a fluid chamber (14) with a hardening layer (16) on an internal wall surface, in which the hardening layer (16) is made of a material, that, per-se, is not electrically conductive but has been ma... | 08/23/2011 |
| 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 is produced between the guides, the upper guide being located at a dis... | 07/19/2011 |
| 7982158 | Method of manufacturing die for forming honeycomb structure and die for forming honeycomb structure A method for manufacturing a die to be used for formation of honeycomb structure, the die having a die base having two faces, honeycomb-shaped slits 5 being formed in one face and back holes communicating with the slits 5 being formed in the other face... | 07/19/2011 |
| 7977597 | Wire bonders and methods of wire-bonding Wire bonders and methods of wire-bonding are disclosed herein. In one embodiment, a method includes attaching a wire to a terminal of a microelectronic component and generating an arc between a first electrode and a second electrode to sever the wire at a point at l... | 07/12/2011 |
| 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 workpiece stabilizes a first portion of an electrode and a second portion o... | 06/21/2011 |
| 7816619 | Methods and apparatus for manufacturing carbon nanotubes A process for manufacturing carbon nanotubes, including a step of creating an electric arc in an electric field between a carbonaceous anode and a carbonaceous cathode under conditions effective to produce the carbon nanotubes, wherein the carbonaceous anode and the... | 10/19/2010 |
| 7772517 | Method of making a plurality of tool inserts A method of producing a plurality of tool inserts (20) from a body of polycrystalline ultra-hard material (10), in particular polycrystalline diamond and polycrystalline cubic boron nitride, having major surfaces (12, 14) on each of opposite sid... | 08/10/2010 |
| 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 an anode and the cutter is powered as a cathode, and a cutting fluid... | 06/22/2010 |
| 7728248 | Method for forming precision clockplate with pivot pins Methods are disclosed for producing a precision clockplate with rotational bearing surfaces (e.g. pivot pins). The methods comprise providing an electrically conductive blank, conventionally machining oversize features comprising bearing surfaces into the blank, opt... | 06/01/2010 |
| 7723636 | Method for repairing machine part, method for forming restored machine part, method for manufacturing machine part, gas turbine engine, electric discharge machine, method for repairing turbine component, and method for forming restored turbine component A defect generated at a portion to be treated of a machine component is removed, a porous deposition is formed by employing a molded electrode composed of a molded body or such molded from powder of a metal or such and generating a pulsing electric discharge between... | 05/25/2010 |
| 7612310 | Manufacturing method of a molded gear A gear piece having a hollow portion of the same shape as a molded gear is formed by performing electrical discharge-machining with respect to a metal member that is smaller in thickness than a tooth width dimension of the molded gear, using a first discharging elec... | 11/03/2009 |
| 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 making devices such as the tooling for plastic injection-molding of plasti... | 10/20/2009 |
| 7598470 | Sinker electric discharge machining method and apparatus An electric discharge machining method of removing material having a dimension (d) and a removal surface area (S) from a workpiece. A removal volume (V) of the material to be removed is obtained based on the dimension (d) and the removal surface area (S). Machining ... | 10/06/2009 |
| 7598471 | Method of electric discharge machining a cathode for an electron gun A method of machining a cathode used in an electron gun. The method includes steps of placing an object to be machined, which is a material of the cathode, and a machining electrode in an electrically insulating oil; applying a discharge current to the machining ele... | 10/06/2009 |
| 7576295 | Method for detecting and compensating electrode wear of electric discharge machining A method for detecting and compensating electrode wear of electric discharge machining (EDM) is disclosed, which comprises the steps of: defining a calibration node; calculating a wear length of a tool electrode by an edge-finding algorithm; using the calculated wea... | 08/18/2009 |
| 7572997 | EDM process for manufacturing reverse tapered holes A electrical discharge machining apparatus is disclosed. The apparatus may have an electrode, an actuator configured to advance the electrode, and a power supply. The apparatus may also have a controller in communication with the actuator and the power supply. The c... | 08/11/2009 |
| 7488917 | Electric discharge machining of a probe array A method of forming a probe away includes forming a layer of tip material over a block of probe material. A first electric discharge machine (EDM) electrode is positioned over the layer of tip material, the EDM electrode having a plurality of openings corresponding ... | 02/10/2009 |
| 7428444 | Method for under-sizing electrodes for polygonal orbit electric discharge machining A system, method, and computer program for designing an electrode for electric discharge machining, comprising identifying a cavity in a three-dimensional design; calculating a direct negative boolean of said cavity to define a general form for an electrode; determi... | 09/23/2008 |
| 7427371 | Method of producing anti-glare film An antiglare film producing method of film production by surface embossing to polymer film is provided. The polymer film includes a support of triacetyl cellulose, and an anti-reflection layer overlaid thereon. An embossing roller is used for surface embossing to a ... | 09/23/2008 |
| 7411150 | Method of producing a composite component A composite component (1), such as a turbine airfoil, includes a conductive portion (2), and a non-conductive portion (5), such as a thermal barrier coating or a wear protection coating, or both. In machining the component, a laser machining ste... | 08/12/2008 |
| 7394040 | Electromachining process and apparatus An electromachining process and apparatus includes providing both high-speed electroerosion functions for rapidly rough finishing a workpiece and electrodischarge machining functions for fine finishing by first using a rotary electrode to implement the high-speed el... | 07/01/2008 |
| 7335848 | Process for production of die usable for formation of honeycomb structure A process for producing a die for forming a honeycomb structure having slits having hexagonal honeycomb cell shape 5 at one of surfaces 7 of a plate-like base material for die 2, and backside holes 4 each communicating with respective sli... | 02/26/2008 |
| 7329825 | Electric discharge machine and machining method therefor An electric discharge machine and method for carrying out electric discharge machining there within is provided, wherein after an electrode (21) and an electrode guide holder (25) are attached to an electrode holder (23), in advance, which is in... | 02/12/2008 |
| 7326309 | Method of producing ceramic laminate body This invention provides a method of producing a ceramic laminate body capable of suppressing the occurrence of de-lamination and cracks, and providing high reliability. This method comprises a heat-bonding step of covering a full periphery of side surfaces of cerami... | 02/05/2008 |
| 7309373 | Method of making a ceramic body of densified tungsten carbide A method of making tungsten carbide and a method of making a densified tungsten carbide-containing ceramic body with a transverse rupture strength greater than 300,000 psi are disclosed. ... | 12/18/2007 |
| 7299662 | Ultrasonic cleaning system for cleaning a plurality of parallel extending, strand like products, such as example wire, profiles and pipes The invention concerns an arrangement for ultrasound cleaning of several strandlike articles (4) traveling next to each other, such as, e.g., wires, profiles and pipes, by means of a liquid excited by ultrasound in a borehole (3), which is only slightl... | 11/27/2007 |
| 7294806 | Method and device for measuring and adjusting the electrode for taper machining on an electrical discharge machine A device and method for measuring and adjusting an electrode used during electrical discharge taper machining, referenced on three axes, Y and Y horizontal and Z vertical, whereas two linear geometric references, bottom and top, which may be intersected by a wire, e... | 11/13/2007 |
| 7291274 | Method of deionising and clarifying the aqueous medium used in an electrical discharge machine and the product used in said method Deionisation and clarification process of the aqueous medium used in an electroerosion machine and product for this process, where the electroerosion machines are comprised of a purification circuit for this aqueous medium, which includes an ion exchange phase betwe... | 11/06/2007 |
| 7291799 | Electrode dressing template Disclosed are various embodiments of an EDM electrode dressing template comprising a body made of an electrically conductive material. Bonded to the body is a pad with an electrically conductive material with hardness greater than the body. An electrode with an erod... | 11/06/2007 |
| 7287610 | Cutting elements and bits incorporating the same Cutting elements and bits incorporating such cutting elements are provided. The cutting elements include a substrate having an interface surface over which is formed an ultra hard material layer. A plurality of lands are formed on the interface surface. A plurality ... | 10/30/2007 |
| 7288870 | Stator core A stator core 2 comprises laminations (9) of low loss stator iron forming a body of magnetic nature and lamination components (11) of high thermal conductivity material regularly arranged within that body. The high thermal conductivity component... | 10/30/2007 |
| 7284462 | Flexible die and method for its manufacture To obtain a push-cutting blade 2, a flexible base 1 and a projection (trapezoid-section projection 21) protruding from this base are formed by etching. Then, a lateral surface or surfaces of the projection 21 is cut into a vertical projec... | 10/23/2007 |
| 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 electrode guide; (ii) generate a dressed machining electrode by engaging ... | 08/28/2007 |
| 7262385 | Material processing device A device for material processing, such as welding, joining, cutting, inspecting and the like, includes an energy beam source and one or more energy beam transfer devices. The one or more transfer devices may direct an energy beam at one or more predetermined locatio... | 08/28/2007 |
| 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 relatively portable, for example, it can be mounted on a palate, and... | 07/10/2007 |
| 7227095 | Wire bonders and methods of wire-bonding Wire bonders and methods of wire-bonding are disclosed herein. In one embodiment, a method includes attaching a wire to a terminal of a microelectronic component and generating an arc between a first electrode and a second electrode to sever the wire at a point at l... | 06/05/2007 |
