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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...
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7528340 |
Apparatus and method for electric discharge machining and method of discriminating electric discharge
An electric discharge machining apparatus comprises a power supply ( 5 ) for applying a voltage to a work gap formed between a tool electrode (E) and the workpiece (W) and a motor ( 7 ) that moves...
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7465900 |
Electrical energy discharge control
Systems and methods presented herein provide for the control of electrical energy discharge from an electrode. In this regard, a sensor detects electrical energy discharged from the electrode and...
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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...
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7323654 |
Electric discharge machining apparatus
An electric discharge machining apparatus capable of precisely detecting the electric discharge in a case of performing machining by minute machining energy such as in finish machining. A voltage...
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7323213 |
Apparatus and method for discharge surface treatment
An apparatus has a green compact electrode including a material of a coating formed on a workpiece by a discharge, a power source for supplying a first voltage, a voltage detector for detecting a...
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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...
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7113884 |
Positioning apparatus for an electrical discharge machine and a method therefor
A positioning apparatus for an electrical discharge machine includes: a power supply 106 for applying a pulse voltage between an electrode 101 and a workpiece 102 ; a discharge detecting means...
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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...
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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...
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7002093 |
Manual feed device in wire electric discharge machine
A manual feeding device in a wire electric discharge machine in which selection between a jog feed and a step feed is made automatically without mode change. When an axis motion key is pressed, a...
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6998562 |
Controller for a wire electrical discharge machine
Set feed speed is lowered when a short circuit is detected in a range within which machining is unstable, the range starting from the point at which discharge is detected after machining starts...
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6979795 |
Sinker electric discharge machine jump control device
A sinker electric discharge machine jump control device for reciprocating a tool electrode along a Z-axis with respect to a workpiece using a servo motor in order to expel contaminated fluid from a...
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6967303 |
Electrical discharge machine
There is provided a controller( 11 ) structured in such a manner that a signal of ON/OFF of electric power of the temperature control unit ( 7 ) is received by the signal receiving section ( 12 ),...
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6924453 |
Machining control method for wire-cut electric discharge machine
The number of electric discharge pulses is detected every given period. A deviation between the detected number and a target number of electric discharge pulses is obtained. Based on the obtained...
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6900407 |
Electric discharge machine with reactive force compensated by jump locus adjustment
In an electric discharge machine, wherein electric power is supplied between an electrode and a workpiece to machine the workpiece, a jumping motion is performed to temporarily increase a distance...
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6844519 |
Electric sparking drill and method for forming a hole with an electric spark
An electric sparking drill and a method for using the same to drill a hole in a workpiece where at least one of a voltage applied to an electrode, the conductivity of a liquid applied between the...
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6838633 |
Method and apparatus for electrodischarge machining
An electric discharge machining apparatus for supplying machining electric power to a gap between an electrode ( 1 ) and a workpiece ( 2 ). The apparatus includes a gap dimension detection device (...
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6832126 |
Control apparatus for wire cut electric discharge machine
In a wire cut electric discharge machine, a correction block is inserted into a corner of a movement path where the wire electrode is moved by the electrode moving device. The correction block does...
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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...
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6730872 |
Method of and apparatus for wire electric-discharge machining
The wire electric-discharge machining apparatus is provided with an inter-pole voltage correction unit 109 which corrects a voltage corresponding to an inter-pole voltage according to a...
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6723942 |
Automatic breakthrough detection device
An automatic breakthrough detection device for drilling electric discharge machine is provided. The automatic breakthrough detection device utilizing the facts of the variations of high frequency...
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6717094 |
Electrical discharge machine and methods of establishing zero set conditions for operation thereof
Electrical discharge machines are disclosed that are capable of a relatively wide range of flexibility and range of motion for performing electrical discharge operations. The electrical discharge...
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6713706 |
Jump control apparatus for electric discharge shaping/profiling machine
A jump control apparatus for an electric discharge machine ensuring high machining precision while reducing machining time by removing sludge speedily, regardless of differences in shape among...
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6707304 |
Devices and methods for detecting a processing electrode of a machine tool
Devices and methods are disclosed for the contactless detection of a bar-shaped or wire-shaped processing electrode of a machine tool such as a spark erosion machine. The detection is based on...
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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...
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6642470 |
Process and device for machining a three-dimensional piece by electroerosive milling
An electroerosion machining device to machine a piece ( 14 ) by milling successive layers includes a member ( 30 ) to drive in rotation an electrode-tool ( 31 ) of tubular shape and a digital...
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6608275 |
Jump control method and apparatus for electric
An electric discharge machining device including an interelectrode servo control unit for controlling an interelectrode distance between an electrode and an object while applying a voltage across...
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6505091 |
Method and apparatus for electrodischarge machining
A detected value indicating a machining state is filtered and a machining gap between an electrode and a workpiece is adjusted by using a control variable obtained through the filtering. Therefore,...
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6448529 |
Electro discharge machining apparatus
A workpiece 7 is held on a table and moved in X and Y directions relative to a tool electrode 4, which is displaceable in a direction orthogonal to the X and Y directions. The position of the...
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6417475 |
EDM electrode position detection
The invention provides an apparatus and method for detecting an out-of-line electrode prior to the start of an electrical discharge machining (EDM) process. The invention involves positioning an...
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6385501 |
Electric discharge machining control method and electric discharge machining controller
An error signal is obtained from a reference value and a value indicating a detected state in machining, a first controlled variable is obtained by adding a value obtained by multiplying the error...
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6339203 |
Spindle system for diesink type electric discharge machine
The main spindle ( 1 A) for the main spindle device of a diesinker electric discharge machine is connected to a high rotor inertia, high output servo motor ( 15 ) without passing through a speed...
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6320150 |
Wire electric discharge machining apparatus, wire electric discharge machining method, and mold for extrusion
Disclosed is a wire electric discharge machining apparatus comprising a wire-driving system for feeding a wire electrode while opposing it to a workpiece, and a power supply unit for supplying...
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6312584 |
Method and apparatus for electrochemically machining a workpiece
An apparatus for electrochemically machining of a workpiece by means of an electrode has an actuator for setting a gap between the electrode and the workpiece. The apparatus further has a channel...
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6310313 |
Electrical discharge apparatus
Separately from an electrode jumping operation (an amount of rise of a first electrode jump (22)) aimed at discharging machining debris produced during electrical discharge machining, an electrode...
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6303890 |
Method for the controlled withdrawal movement of a machining electrode in an erosion device
A method and a device for the controlled withdrawal movement of a machining electrode in an erosion device wherein, in the case of a process malfunction, the machining electrode is moved backward...
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6259053 |
Method and apparatus for controlling the position and power of electrodes in an electric-discharge texturing machine
A method and apparatus for controlling the position and power of electrodes in an electric-discharge texturing (EDT) machine for texturing a roll includes an actuator for moving an electrode away...
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6252191 |
Method and apparatus for electrical discharge machining with intermittent electrical measuring
EDM according to the present invention involves an intermttent type of operation between erosion pulses and measurement pulses in order to circumvent an interfering self-control effect of an...
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6225589 |
Electric discharge machining apparatus
In a three dimensional generic electric discharge machining (EDM) apparatus the positionable driver assembly (4) houses a discharge electrode (1) that is in the form of a continuous wire, exposing...
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6184486 |
Rotative tool-electrodes of simple shapes for 3D electroerosive machining
Electrode tools for electroerosion (EDM) where a cavity or a relief is machined by hollowing out the part at great speed and in successive layers or slices by means of a rotating electrode tool of...
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6169262 |
Apparatus and method for enhancing the working efficiency of an electric discharging machine
An apparatus and method is provided for use on an electric discharging machine to enhance the working efficiency of the electric discharging machine. The apparatus and method are directed to the...
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6150627 |
Electric discharge machining apparatus
An electric discharge machining apparatus includes an air blower attached to a head thereof, and when a work pallet is to be taken away from a work chucking device in a machining vessel after...
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6147500 |
EDM with jump motion detecting reactive force
An electric discharge machine for machining a workpiece by an electric discharge by supplying a machining fluid to a gap between an electrode and the workpiece and supplying pulses to the workpiece...
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6130510 |
Electric discharge machining power source unit for electric discharge machine
When a state for electric discharge is established, switching elements T2 and T3 are turned on so that a machining current J0 from a low-voltage auxiliary DC power source (2) flows between a...
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6072143 |
Measuring device and method for determining the length of an electrode
The invention proposes a method for determining the actual length of an electrode in an electrical discharge forming machine, wherein the electrode is brought in contact with a contact element. An...
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6043447 |
Discharge machining apparatus
In machining, a short-circuit determination reference time stored in a parameter memory is changed by a short-circuit determination reference time changing device in response to rpm or a rotational...
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5919380 |
Three-dimensional electrical discharge machining method and apparatus utilizing NC control
To obtain high machining speed and machining accuracy in three-dimensional machining by using of an electrode of simple shape. Applying voltage between an electrode of simple shape and a workpiece,...
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5903067 |
Power supply apparatus for electric discharge machine
A power supply apparatus for an electric discharge machine comprises a first power supply device comprising a high impedance circuit connected in series to a DC power supply unit and a second power...
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5900165 |
Electric discharge machining apparatus
An electric discharge machine apparatus has a numeric control unit which can optimally set jumping conditions without forcing the user to perform any complicated setting operation. The numeric...
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