18results about "Power source circuits" patented technology

Systems and methods for beneficially affecting the surface morphology of electrically conductive materials using electrochemistry are described. The systems and methods for beneficially affecting the surface morphology of electrically conductive materials use a bimodal process in which a first current type (alternating or direct) is applied across an electrolyte between an electrode and a workpiece followed by applying a second current type different from the first current type is used. The bimodal process may be repeated one or more times.

A pulsed electrochemical machining (pECM) system includes a pECM tool comprising a tool body defining a tool axis, the tool body comprising one or more electrodes, each of the one or more electrodes comprising an electrically conductive material and defining a working surface at a distal end of the tool axis configured to face a workpiece; an enclosure system configured to hold the workpiece, wherein the enclosure system comprises: a first clamp configured to grip a first end of the workpiece; a second clamp configured to grip a second end of the workpiece; and a backside support configured to support a span of the workpiece between the first end and the second end.

Systems and methods are described for beneficially influencing the surface morphology of conductive materials using electrochemistry. The systems and methods for beneficially influencing the surface morphology of conductive materials use a bimodal process in which a first current type (AC or DC) is applied to an electrolyte between an electrode and a workpiece, followed by a second current type that is different from the first current type used. The bimodal process can be repeated one or more times.

A generator for generating processing pulses at the electrode gap (3) of a device for electrochemically machining workpieces (1), comprising a power supply device (7) and switching devices (9) for pulse-wise connection of the power supply device (7) to connecting cables (5, 6) that are led to the electrode gap (3), with a circuit (8, 9, 13, 15) for increasing the steepness of the edges (25, 27) of current pulses flowing through the electrode gap (3) by recuperating field energy stored in the connecting cables (5, 6) during the pulses, wherein the circuit (8, 9, 13, 15) is provided for recuperating field energy stored as a result of the inductance (10) of the connecting cables (5, 6) and for recuperating the field energy by charging a capacitor (13) by a current that the inductance (10) generates after the connecting cables (5, 6) have been separated from the power supply device (7) by the switching device (9). and the circuit (8,9,13,15) comprises a diode (8) preventing the discharge of the capacitor (13) via the power supply device (7), characterized in that the connecting cables (5, 6), the power supply device (7), the capacitor (13) and the diode (8) are connected in series in such a way that they are arranged on a common current path at least for the current flowing during the recuperation of the field energy stored in the connecting cables (5, 6).

Methods and systems of electrochemically machining a component are provided. The method may include applying two or more potentials to a tool electrode comprising an array of two or more individual electrodes to generate two or more electric fields in between the tool electrode and a workpiece opposite of the tool electrode, wherein each of the two or more electric fields is generated by one of the array of two or more individual electrodes.

A method for electropolishing a manufactured metallic article, the method comprising: contacting the metallic article with an electropolishing electrolyte; and electropolishing the metallic article in the electropolishing electrolyte through the application of an applied current regime comprising: at least one electropolishing regime, each electropolishing regime comprising a current density of at least 2 A / cm2 and a voltage comprising a shaped waveform having a frequency from 2 Hz to 300 kHz, a minimum voltage of at least 0 V and a maximum voltage of between 0.5 to 500 V.

A pulsed electrochemical machining (pECM) system including a pECM assembly. The pECM assembly includes a tool body which defines a tool axis and includes an electrode which includes an electrically conductive material and defines working surface. The pECM system includes an electrolyte system configured to supply electrolyte to an interelectrode gap, and the electrolyte system includes a vacuum system. The tool body defines a working surface configured to face a workpiece, and the working surface defines a plurality of apertures configured to fluidically couple to an electrolyte system. The tool body includes a manifold block defining at least one electrolyte inlet and at least one electrolyte outlet, a baffle element, and the electrode. The tool body is configured to receive electrolyte from an electrolyte system at the electrolyte inlet in the manifold block and feed electrolyte through the baffle element to the working surface of the electrode.

Systems and methods are described for beneficially influencing the surface morphology of conductive materials using electrochemistry. The systems and methods for beneficially influencing the surface morphology of conductive materials use a bimodal process in which a first current type (AC or DC) is applied to an electrolyte between an electrode and a workpiece, followed by a second current type that is different from the first current type used. The bimodal process can be repeated one or more times.

The invention relates to a device for electrochemically machining a metal blank, in particular ECM or PECM device having a machining electrode by means of which material can be removed from the blank when voltage is applied.

Systems and methods for beneficially affecting the surface morphology of electrically conductive materials using electrochemistry are described. The systems and methods for beneficially affecting the surface morphology of electrically conductive materials use a bimodal process in which a first current type (alternating or direct) is applied across an electrolyte between an electrode and a workpiece followed by applying a second current type different from the first current type is used. The bimodal process may be repeated one or more times.

Described herein are systems and methods for beneficially affecting the surface morphology of conductive materials using electrochemistry. These systems and methods for beneficially affecting the surface morphology of conductive materials use a bimodal process in which a first current type (alternating or direct current) is applied across the electrolyte between the electrode and the workpiece, followed by a second current type different than the first current type. The bimodal process may be repeated one or more times.

In some examples, a pulsed electrochemical machining (pECM) system including a first tool body including a first electrode defining a working surface at a distal end of the tool axis configured to face a workpiece and a second tool body including a second electrode defining a working surface at a distal end of the tool axis configured to face a workpiece. The system includes a mechanical system configured to position the working surface of the first tool body relative to the workpiece and configured to position the working surface of the second tool body relative to the workpiece. The system includes an electrolyte system configured to supply electrolyte to a first interelectrode gap and a second interelectrode gap and a power supply configured to generate a pulsed direct current between the first tool body and the workpiece and the second tool body and the workpiece.

Methods and systems of electrochemically machining a component are provided. The method may include applying two or more potentials to a tool electrode comprising an array of two or more individual electrodes to generate two or more electric fields in between the tool electrode and a workpiece opposite of the tool electrode, wherein each of the two or more electric fields is generated by one of the array of two or more individual electrodes.

To provide methods and systems of electrochemically machining a component.SOLUTION: The method may include applying two or more potentials to a tool electrode comprising an array of two or more individual electrodes to generate two or more electric fields between the tool electrode and a workpiece opposite to the tool electrode, wherein each of the two or more electric fields is generated by one of the array of two or more individual electrodes.SELECTED DRAWING: Figure 1

The disclosure describes a method for defining an electrode of a pulsed electrochemical machining (pECM) tool that is performed by one or more processors. The method includes receiving workpiece measurement data representative of a machined surface of a machined workpiece. The machined workpiece has been machined by a working surface of an initial electrode. The method includes identifying a set of dimensional differences between the workpiece measurement data and workpiece model data representative of a finished surface of a master workpiece. The method includes updating, based on the set of dimensional differences, initial electrode model data representative of the working surface of the initial electrode and outputting the updated electrode model data.

A pulsed electrochemical machining (pECM) system including a tool body defining a tool axis and a proximal end and a distal end. The tool body includes one or more electrodes, each of the one or more electrodes defining a working surface at the distal end of the tool axis configured to face a workpiece. Electrolyte at least partially fills an interelectrode gap defined by the working surface at the distal end of the tool axis and a target surface of the workpiece. A first flow block coupled to the tool body and a second flow block coupled to the workpiece are configured to form at least one seal surrounding at least a portion of a perimeter of the interelectrode gap, and the at least one seal is configured to reduce or eliminate flow of the electrolyte out of the portion of the perimeter of the interelectrode gap.

Methods and systems of electrochemically machining a workpiece are provided. The method can include applying two or more electric potentials to a tool electrode comprising an array of two or more individual electrodes to generate two or more electric fields between the tool electrode and a workpiece opposite the tool electrode, wherein each of the two or more electric fields is generated by one of the array of two or more individual electrodes.

A technique of removing material from metal parts referred to as OPECM and a corresponding OPECM processing machine are disclosed. A tool electrode is manufactured for removing material from a target workpiece, and the workpiece and tool electrode are fixed into a processing machine that imparts an oscillatory motion path or profile and applies a voltage through a flowing electrolyte solution. The disclosed technique and processing machine removes material from the surface of the target workpiece through proximal surface dissolution as the workpiece and tool electrode are brought within proximity of one another.