Matches 151 - 200 out of 418 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
5006685 Machine tool with grinding function and truing/dressing method of grinding stone using it  
A machining tool with an electric discharge truing and dressing apparatus comprising a spindle stock for containing and supporting a workpiece spindle which is driven for rotation while holding a...
4988552 Electrical discharge machining electrode  
A wire electrode for a traveling wire EDM apparatus that comprises a copper clad steel core that is clad with a homogenous, outer brass layer using a classical bonding process. The copper clad...
4985609 Method of making a broach  
A broach which has several cutting elements and a support unit to which the cutting elements are attached is made by cutting the cutting elements through electric-discharge machining, in particular...
4968971 Method of spot welding parts of an electromagnetic bell unit  
A miniaturized electromagnetic bell unit suitable for use with an alarm clock and the like is provided. The bell unit of the present invention is characterized in that it is miniaturized in such a...
4952768 Electric discharge machining electrode  
An electrode for precision electric discharge machining having an improved machining rate and surface smoothness with respect to conventional graphite and copper electrodes. The electrode is formed...
4924051 Split grip tip for mounting of electrode blanks  
An expandable, grip tip having a head with a knurled peripheral surface is expanded within a predrilled opening in a graphite electrode blank to secure the grip tip to the electrode blank. The grip...
4922074 V-block holder for EDM electrode  
A V-block accurately and predictably aligns an electrode blank with respect to an electrode holder. The V-block is clamped against two locating flats that are machined perpendicular to each other...
4922076 Electro-discharge machining electrode  
An improved electrode for producing cone-shaped diffusion openings in the wall of an air-cooled rotor blade of a jet engine or other gas turbine by means of electro-discharge-machining (EDM), is...
4916282 Device for cutting the wall of the tubular piece by electrical discharge machining  
The device comprises a support (11) equipped with a fastening element, an assembly (12) mounted movably relative to the support (11) in the direction of the axis (8) of the tubular piece, a pole...
4891485 Device for fastening an EDM tool in plural orientations  
A device permits fastening a tool (preferably an EDM tool) to a machining head in at least two different orientations. The tool is mounted on a tool holder, and a pair of portions alternately fix...
4877935 Wire cut electrodischarge machine tool  
A wire cut electrodischarge machine tool, wherein when the electrode wire breaks during electrodischarge machining, the wire disconnected end is cut and repaired at a repair position far from the...
4876429 Device for retaining tools or workpieces having a cylindrical shaft  
A coupling device for coupling, for example a shaft of a tool, to a coupling member anchored to a machine tool, comprises a take-up bushing formed with a conical recess receiving a substantially...
4870242 Clamping mechanism for securing an EDM electrode holder in a hydraulic chuck  
An apparatus for displacing a pressure creating piston in a hydraulic chuck. A toggle clamp having a handle is attached to the hydraulic chuck above the pressure piston by a mounting assembly. An...
4859824 Electrospark machine system, assembly for use with system, device for mounting electrospark machining electrode, and method of shaping a workpiece  
An electrospark machining system which includes an electrode forming machine which machines an electrode blank into a shaped electrode having a desired profile, an electrospark machine to which the...
4855557 Electrical discharge machining electrode  
An electrode for forming a hole in a metal part by an electrical discharge machining process, the electrode being provided with a longitudinal flushing bore which extends from the free end of the...
4855558 Clamping device for a tool at a machine tool, particularly at a die sinking electric discharge machine  
A clamping device for a tool at a machine tool, particularly a die sinking electric discharge machine equipped with a chuck having two pairs of rails projecting from the underside of the chuck and...
4853512 Spark erosion machining apparatus  
A spark erosion machining apparatus with an electrode changing mechanism having electrode support members and a frame that are connected to the interior front wall of the tub that can be opened...
4851634 Device for electrical discharge piercing of holes in components  
A device for electrical discharge piercing of holes in components comprises a tool electrode mounted in an electrode holder (18) and made as a rod (26) enclosed, with a clearance, in a sheath (27)...
4847464 Tool for forming a spinneret capillary  
An electrode for use with electric discharge machining in forming a complex spinneret orifice having concentric annular passages is made of a plurality of concentric male segments formed to...
4819325 Method of forming electro-discharge machining electrode  
An improved electrode for producing cone-shaped diffusion openings in the wall of an air-cooled rotor blade of a jet engine or other gas turbine by means of electro-discharge-machining (EDM), is...
4814573 Electrical discharge machining apparatus with exchangeable electrode refeed cartridge  
An electrical discharge machine including a pick-and-place system for transferring electrode refeed cartridges from a storage turret to an EDM work station from either one or two indexable turrets....
4812372 Refractory metal substrate and coatings therefor  
A refractory metal substrate suitable for use in contact with an oxygen- or nitrogen-containing environment at a temperature greater than the oxidation or mitridation acceleration temperature of...
4797527 Electrode for electric discharge machining and method for producing the same  
An electrode for electric discharge machining wherein at least a part of the surface of the electrode is coated with a non-single crystalline insulator to prevent undesirable electric discharge...
4795874 Saw blade with non-magnetic inserts for electric arc saw and method of making same  
An electric arc saw blade having improved magnetic characteristics and economy including a metallic disk composed of a high strength, electrically conductive material having secured to its...
4789769 Adjustable electrode holder  
An electrode holder is provided with an adjustment mechanism adapted to permit the manual adjustment of the electrode relative to the holder. The adjustment mechanism is accessible to an operator...
4782203 Wire guide for electric discharge machine  
A wire guide directs a wire electrode from a refeed mechanism in an electrical discharge machine EDM to a workpiece. The wire guide has ceramic inserts defining a precision guide slot for the...
4771157 Electrical discharge machining apparatus for forming minute holes in a workpiece  
An electrical discharge machining apparatus for forming minute holes in a workpiece has a machining electrode supported in V-shaped grooves for forming a minute hole through an electrical discharge...
4766280 Wire electrode for the spark erosive cutting  
To increase the cutting performance of a wire electrode for electroerosive cutting, the surface of the wire electrode is provided with projections and recesses created by twisting the wire...
4754115 High speed electrical discharge machining by redressing high resolution graphite electrodes  
An EDM apparatus for high speed machining of a workpiece and redressing of a graphite electrode by an ultrasonic machining tool or a total form machining tool. When the electrode becomes worn the...
4743731 Disintegrating electrodes  
A metal disintegrating electrode for forming a hole in a metal workpiece such as a pipe by a thermo-fracture process without creating large chips or particles that otherwise would contaminate the...
4739145 System for positioning and transferring EDM electrodes  
In a multiple axis electrical discharge machine having a pair of indexable turrets each of which carries a plurality of electrode cartridges each with a supply of electrodes, the improvement of...
4735678 Forming a circuit pattern in a metallic tape by electrical discharge machining  
The present invention is directed to the process of forming a circuit pattern in a strip of metallic tape with an electrical discharge machining apparatus having an electrode and a pool of...
4734173 Method and apparatus for the manufacture of dental protheses  
The present invention relates to a method and an apparatus for the manufacture of dental prostheses by means of an electroerosion process by using two template electrodes for erosive excavation....
4721838 Tool for electrical discharge piercing of intricately-shaped holes and method of using same  
An electrode tool for electroerosive drilling of holes in workpieces includes a central electrode fabricated from an electroconductive material and disposed in a shell with a gap. The central...
4717804 EDM wire electrode  
An improved electrical discharge machining electrode permitting increased cutting speed of the metal workpiece being machined and which improves the operation of the electrical discharge machining...
4717803 Electrode holder for electric discharge machines  
An electrode holder particularly useful in electric discharge machining where it is required to attach quickly and accurately in succession a number of electrodes to the quill of the machine. One...
4713515 Electrode holder for electric discharge processing machines  
An electrode holder clamps the electrode 11 in two perpendicular directions by clamp members 33 and 40. Each clamp member slidably rests on base seat 16 which has side portions 17 and 18 that...
4703142 Method of combining grinding and EDM operation for finishing fuel injector nozzle bodies  
A combined grinding and EDM apparatus has an indexable rotary turret with work heads secured thereon to locate a pair of nozzle body blanks with their longitudinal axes in spaced parallelism; and...
4698477 Electrical discharge machining apparatus with forced cooling system  
An electrical discharge machining apparatus in which a workpiece is machined by generating an electrical discharge between the workpiece and a facing electrode immersed in a machining liquid. A...
4686343 Method of and apparatus for resetting a wire electrode in an operating setup on an electroerosion machine  
An improved method and apparatus for automatically resetting a wire electrode in an operating setup on an electroerosion (e.g. EDM) machine is disclosed. Upon termination of a given machining...
4670635 Multi-electrode electrical discharge machining apparatus  
An electrical discharge machine including a base frame having secured thereon a workpiece holding fixture and an upright frame member, a support member slidably mounted on the upright frame member,...
4668262 Protective coating for refractory metal substrates  
A refractory metal substrate suitable for use in contact with molten glass is coated with a chromium oxide outer coating and a molybdenum disilicide buffer coating to protect the substrate from...
4660807 Wrapped thermal torch and method  
A consumable thermal torch includes inner and outer casings having a first gas flow passage defined therebetween. At least one burning rod is received in the inner casing further defining second...
4654499 EDM electrode assembly and method of making and using same  
An EDM electrode assembly including an electrode with a relative uniform, other-than-round shape, in cross-section along its entire length is supported within tubing by an epoxy bushing formed...
4654498 Electrical discharge machining electrode for forming minute holes in a workpiece and electrical discharge machining apparatus employing such an electrode  
An electrode consisting of a core wire, a support tube having a bore in which the electrode core wire is slidably supported, an outer peripheral surface held in highly concentric relation to the...
4650949 Electrode for electrical discharge machining film cooling passages in an airfoil  
A sheet metal electrode for forming a shaped, diffusing film coolant passage has a straight, longitudinally extending forward section forming an acute angle with a flat middle section, which, in...
4647748 Graphite electrode construction and method of making  
Electrical Discharge Machining (EDM) utilizes electrodes made out of carbon, for example, in place of cutting tools. The shape of the electrode determines the shape of the part being machined. The...
4645894 Travelling wire EDM apparatus provided with electrode wire changer  
An EDM electrode wire changer has a plurality of conduits, one for each available electrode wire, all conduits converging towards the threading axis of a selected electrode wire through the...
4644125 D.C. motor driven EDM head  
An EDM head has a single servo-controlled electric motor and a high ratio gear system that drives a wire electrode during both an EDM machining operation and a wire erosion compensation operation....
4639568 Apparatus and method for finishing fuel injector spray tips using EDM  
Apparatus and a method are provided to form the interior of a fuel injector spray tip by use of a cold forming punch to form a V-shaped spray tip interior configured to reduce fuel dribble and...
Matches 151 - 200 out of 418 < 1 2 3 4 5 6 7 8 9 >