An electro discharge machining system, and manufacturing method therefor, including: providing an electro discharge machining unit and control; providing a workpiece holder; providing a tool holder for a tool having an electrode array; and operatively connecting the workpiece holder and the tool holder to the electro discharge machining unit and control for batch electro-discharge machining of a workpiece to a configuration compatible with the electrode array.

A machining method for three-dimensional open flow channel using high-speed arc discharge layered sweep, which arranges an axial line of an installation shaft of a tool electrode with six degrees of freedom to be perpendicular to an axial line of a to-be machined work piece in an arc discharge process, with the tool electrode sweeping in a closed path in a plane or a curved surface perpendicular to the installation shaft, wherein the path of the sweeping satisfies: a space of an enveloped space being formed by the tool electrode moving in the path and being coincident with a removed portion of the work piece does not exceed a preset machined cavity of the flow channel. The present invention is based on high-speed arc discharge of hydrodynamic arc breaking and realized layered milling and surface machining for three-dimensional open flow channels.

Provided is a method for correcting perpendicularity of an electrode rod for a super-drill discharge machine. The method is performed using a block with a truncated cone-shaped detection cavity and includes: finding a first center point of a circle on a first XY plane within the detection cavity; moving a tip of the electrode rod to the first center point; moving the electrode rod by a predetermined length (H) in a longitudinal direction thereof such that the tip of the electrode is disposed on a second XY plane; finding a second center point of a circle on the second XY plane; and calculating an inclination angle of the electrode rod by using a trigonometric function of a triangle in which the hypotenuse thereof is the predetermined length (H) and the adjacent side thereof is a distance from the tip of the electrode rod to the second center point on the second XY plane.

A small-hole electric discharge machine (100) applying voltage between a small-hole machining-use electrode (116) attached to a spindle (112) and a workpiece (130) attached to a table (118) to drill a small hole in a workpiece by electric discharge energy, the small-hole electric discharge machine including an electrode guide (10) having a hollow part through which the electrode is passed and guiding the electrode at the front end of the hollow part in a parallel state with respect to an axis (Rz) of the spindle while shifted by a predetermined distance (S) from the axis and a W-axis chuck (144) holding an electrode guide to be able to measure and maintain a position of a front end of the electrode guide in direction of the axis of the spindle and an angular position about the axis.

This fine hole electrical discharge machine applies voltage between a fine hole machining electrode and a workpiece to cause discharge, and machines a fine hole in the workpiece by using energy of the discharge. The fine hole electrical discharge machine comprises: a bendable guide tube having a hollow portion through which the electrode is inserted; and a tube holder that supports the leading end of the guide tube and allows the leading end of the guide tube to be inclined at a desired angle. Thus, even when the workpiece has a complicated shape, like a blisk, having a large number of turbine blades arranged in the circumferential direction, a fine hole can be machined by accurately positioning the electrode so as to orient the electrode toward a target machining point on a surface of the workpiece without involving interference with the workpiece.

The present invention is an electrochemical machining tool equipped with a tool body that comprises: an electrode that extends along an axial line and inside which a flow channel through which an electrolytic solution flows towards the tip end is formed; an insulating layer covering the outer circumferential surface of the electrode so as to expose the tip end face of the electrode; and a flow channel-partitioning part for partitioning the flow channel into a first flow channel containing the axial line and a second flow channel positioned on the outer circumferential side of the first flow channel. The electrochemical machining tool has a configuration in which a fluid outflow section for directing electrolytic solution, which is flowing through the second flow channel, outward in the radial direction of the tool body is formed on a portion of the circumference of the tool body.

A method is provided comprising identifying an alignment point of a workpiece; positioning a first end of an electrode in the direction of the alignment point of the workpiece; applying a first voltage to the electrode wherein the applied first voltage generates a spark; rotating the electrode in a first direction; advancing the electrode toward the alignment point by a first distance wherein advancing the electrode and applying the first voltage creates a first orifice section; applying a second voltage to the electrode and modifying one or more operational parameters of the electrode; advancing the electrode toward the alignment point by a second distance wherein advancing the electrode and applying the second voltage causes formation of at least a second orifice section; wherein the first and second orifice sections cooperate to form an orifice comprising a first flow area and a second flow area.

The invention relates to a fixing device for fixing workpieces and a wire erosion machine or a laser system that has a fixing device according to the invention. The present invention is supplemented by a method for wire eroding or lasing a plurality of workpieces.

The fixing device (1) serves in particular to fix workpieces (2) that are substantially rod-shaped and to be machined by wire erosion or lasing. It comprises a support apparatus (20) with a plurality of shaped elements (21) for accommodating and supporting a plurality of workpieces (2) in the correspondingly formed shaped elements (21), and for positioning and fixing the workpieces (2) in at least one translatory degree of freedom (22) in the shaped elements (21). The fixing device (1) has a clamping apparatus (50) by means of which pressure force (52) can be applied to a plurality of workpieces (2) accommodated in the shaped elements (21) so that the workpieces (2) are fixed in the clamping apparatus (50) at least in a friction lock due to the applied pressure force. The support apparatus (20) comprises a plurality of passages (30) as shaped elements (21) through which the workpieces (2) can be guided, or the support apparatus (20) comprises a plurality of first channel-shaped elements (40) as the shaped elements (21) in which the workpieces (2) can be accommodated, whereby the workpieces are blocked in their translatory degrees of freedom (22) which are oriented perpendicular to the directions of longitudinal extension (3) of the workpieces (2), or respectively also to the directions of longitudinal extension (23) of the shaped elements (21).

An electrical discharge machining (EDM) system, control system and related methods. Various embodiments include a control system for controlling a plurality of electrode devices in an EDM system to form holes in a workpiece. The control system can be configured to perform a process including: initiating a hole formation program for each of the plurality of electrode devices; determining whether at least one electrode has completed formation of a corresponding hole in the workpiece; and separating the at least one electrode from the workpiece in response to determining that the at least one electrode has completed formation of the corresponding hole.

A method of machining cooling holes in a component includes the steps of inserting an electro discharge machining guide that houses an electrode into an internal cavity of a component, and machining a cooling hole into a wall of the component with the electrode. A gas turbine engine component includes first and second spaced apart walls providing an internal cavity. The first wall has outer and inner surfaces. The inner surface faces the internal cavity. A cooling hole extends through the first wall from the inner surface to the outer surface. The cooling hole includes entry and exit openings respectively provided in the inner and outer surfaces. The exit opening includes a cross-sectional area that is smaller than a cross-sectional area of the entry opening.