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.

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.

Electroerosion devices and methods for performing electroerosion machining are disclosed. The electroerosion devices may perform simultaneous electrical discharge machining and pulsed electrochemical machining (S-ED/PEC) through electrode assembly design and the use of two different working fluids.

Electroerosion devices and methods for performing electroerosion machining are disclosed. The electroerosion devices may perform simultaneous electrical discharge machining and pulsed electrochemical machining (S-ED/PEC) through the use of at least two different types of electrodes and a quasi-dielectric working fluid.

A method for producing cavities in a turbomachine disk, the cavities extending between first and second lateral surfaces of the disk, the method including positioning a ring facing the first surface, the ring including an inner periphery including protrusions complementary in shape to the cavities that are to be produced; circulating an electrolyte close to the protrusions on the ring; activating a first translational movement of the ring towards the second surface; activating a rotation of the disk; generating an electric current pulse in the electrolyte when the ring is substantially at the first surface, the pulse resulting in the ionic dissolution of the disk at the protrusions; reducing the speed of rotation to a first reduced speed, when the ring is substantially at the first surface, for a first period of time; and stopping the first translation of the ring when the ring is beyond the second surface.

A method of operating an electrochemical machining system includes selectively performing an electrochemical machining process by an electrochemical machine of the electrochemical machining system in a macromachining mode or a micromachining mode by controlling a purity level of a machining liquid supplied to the electrochemical machine.

A method for preparing a cross-dimension micro-nano structure array includes: S1. providing a workpiece immersed in the electrolyte as the first electrode, providing a trimming wire electrode as the second electrode and setting it above the workpiece, providing an interference beam adjuster and outputting multi-beam laser interference to irradiate the surface of the workpiece; S2. The power supply between the first electrode and the second electrode forms a loop, and drives the trimming wire electrode to reciprocate relative to the workpiece, and the workpiece undergoes electrochemical dissolution or electrochemical deposition at the corresponding position of the trimming wire electrode, and form a micro-nano structure array without a mask, and solves the problem of low output power of the existing ultrashort pulse power supply, improves the processing accuracy of the micro-nano structure array, does not require electrolyte for high-speed flow, and improves system safety and reduce the cost.

A method for producing of a metal component that is electrochemically machined to remove material, wherein an electrode is positioned adjacent to and, by a duct gap, spaced from a component portion to be machined, and in the presence of an electrolyte a current and a voltage are applied to the electrode and the component. The electrode is moved toward the component from an initial position to a terminal position. In a first operating mode material is removed using a permanently applied current and voltage, a constant electrolyte flow through the duct gap, and a constant advancement of the electrode from the initial position toward the component while maintaining a first gap width. Upon achieving a predetermined removal depth, a changeover to a second operating mode occurs and the electrode is moved cyclically between a non-operating position and an operating position having a second gap width smaller than the first gap width. A current pulse and voltage pulse are applied only in the operating position, and the electrolyte flows through the gap at least in the non-operating position. The second operating mode is maintained until a desired final geometry.

A device for the electrochemical processing of a metal workpiece, including a plurality of electrodes that by way of respective linear drive units are movable in a linear manner relative to the workpiece from an initial position to a terminal position, the electrodes having a reproduction face that is directed toward the workpiece, wherein at least three electrodes are provided, the electrodes being disposed so as to be offset around the circumference of the workpiece and by way of the reproduction faces of the electrodes during the entire readjustment movement from the initial position to the terminal position engaging across one another in portions so as to be in contact, and by way of the reproduction faces of the electrodes delimiting a fluid duct that in a closed manner encircles the circumference of the workpiece.

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.