A method is provided for manufacturing a component. During this method, a workpiece is provided. An aperture is machined into the workpiece using an electrical discharge machining wire supported by a guide. The machining of the aperture includes moving the guide along a guide path where the electrical discharge machining wire cuts the workpiece along a wire path that is different than the guide path. A speed of the electrical discharge machining wire is maintained during the cutting of the workpiece along the wire path.

A controller controls cutting of simultaneously cutting wafers by performing electrical discharge machining while moving a workpiece relative to cutting wire sections in a direction at right angles to the cutting wire sections in a plane perpendicular to the axial direction of main guide rollers and leaving a connection at which a part of each wafer that has been incompletely cut is still connected to the workpiece, and shape correction of causing the cutting wire sections to perform scanning while performing electrical discharge machining along a path of the cutting wire sections in a cutting direction at the time of the cutting to simultaneously correct the shape of a plurality of cut surfaces that are cut at the time of the cutting.

To provide a wire electric discharge machine which can appropriately perform thermal displacement correction of upper/lower guides even when the installation environment changes. Provided are a storage unit that stores temperatures of machine elements as temperature data, and a rendering unit that digitizes the installation environment and renders as environmental data. Additionally provided are a position command unit that commands a relative position of the upper/lower guides; and a relational expression calculation unit that sets the temperature data environmental data as input data, sets the relative position as training data, and calculates the relational expression by way of machine learning. Further provided are a relational expression decision unit that calculates a correction amount by substituting the temperature of the machine element into this relational expression, and in the case of error between the relative position of the upper/lower guides based on this correction amount and the relative position commanded by the position command unit being small, decides this relational expression as a formal relational expression; and a correction execution unit that performs correction on the relative position of the upper/lower guides using this relational expression.

A guide unit that stretches a wire electrode and guides the wire electrode to a machinable range section where a workpiece is placed includes: a first wire guide and a second wire guide; a first support element disposed spaced apart between the first and second wire guides and disposed spaced apart from the first wire guide, which determines a passage location of the wire electrode; and a second support element disposed spaced apart from the second wire guide, which determines a passage location of the wire electrode. The first support element has a variable direction relative to the first wire guide, the machinable range section of the wire electrode is formed of a portion stretched between the first and second support elements, and the wire electrode can tilt with respect to the wire electrode supplied from the supply unit.

A wire electrical discharge machine includes a contact detector provided at a lower nozzle and configured to detect contact of a wire electrode with the exterior of the lower nozzle, a suction unit configured to suction working fluid into the lower nozzle, and a wire feeding mechanism configured to pass the wire electrode through a machining hole in a workpiece and feed the wire electrode toward the lower nozzle. When auto wire feeding is performed with a work-pan containing working fluid, the wire electrode (is fed toward the lower nozzle by the wire feeding mechanism while the suction unit suctions the working fluid into the lower nozzle. When the contact detector detects contact of the wire electrode with the exterior of the lower nozzle, the wire electrode is rewound by the wire feeding mechanism.

To perform highly accurate cutting according to stable power feed from a machining power supply, a wire electric discharge machining apparatus includes a wire wound over main guide rollers a plurality of times to simultaneously perform a plurality of kinds of cutting. Wire laying work for a plurality of the wires on power feed elements is reduced, uniform power is fed to cutting wire sections, stable machining is intended, and according to alignment positions, for each of units, a plurality of the power feed elements are aligned to correspond to a wire parallel arrangement interval of the cutting wire sections set as power feed targets and are disposed to feed power to the cutting wire sections with an interval of at least every other cutting wire section.

A wire electric discharge machine according to the present invention includes a multijoint robot including a wire crossing mechanism for crossing a wire electrode on its tip end, a robot controller for controlling the multijoint robot, a numerical controller for controlling the wire electric discharge machine, and a transmission unit for transmitting a coordinate position when the multijoint robot is driven and controlled to move the wire crossing mechanism from the robot controller to the numerical controller, and the numerical controller synchronizes a position of each shaft of the wire electric discharge machine with a movement of the wire crossing mechanism with reference to the coordinate position transmitted by the transmission unit.

A multiwire electric discharge machine includes: a plurality of guide rollers; a machining power supply that applies a voltage between each of a plurality of cutting wire sections and a workpiece; a dummy workpiece including a contact surface curved in such a way as to be capable of coming into contact with a curved surface of the workpiece except for an end point, the end point being to be reached by each of the plurality of cutting wire sections when machining of the workpiece is completed, the dummy workpiece supporting the workpiece from one side in a first direction, the first direction being a direction in which the workpiece moves; and a pressing mechanism including a pressing portion, the pressing mechanism pressing the workpiece against the dummy workpiece by bringing the pressing portion into contact with the workpiece from another side in the first direction.

A controller controls cutting of simultaneously cutting wafers by performing electrical discharge machining while moving a workpiece relative to cutting wire sections in a direction at right angles to the cutting wire sections in a plane perpendicular to the axial direction of main guide rollers and leaving a connection at which a part of each wafer that has been incompletely cut is still connected to the workpiece, and shape correction of causing the cutting wire sections to perform scanning while performing electrical discharge machining along a path of the cutting wire sections in a cutting direction at the time of the cutting to simultaneously correct the shape of a plurality of cut surfaces that are cut at the time of the cutting.

To provide a wire electric discharge machine which can appropriately perform thermal displacement correction of upper/lower guides even when the installation environment changes. Provided are a storage unit that stores temperatures of machine elements as temperature data, and a rendering unit that digitizes the installation environment and renders as environmental data. Additionally provided are a position command unit that commands a relative position of the upper/lower guides; and a relational expression calculation unit that sets the temperature data environmental data as input data, sets the relative position as training data, and calculates the relational expression by way of machine learning. Further provided are a relational expression decision unit that calculates a correction amount by substituting the temperature of the machine element into this relational expression, and in the case of error between the relative position of the upper/lower guides based on this correction amount and the relative position commanded by the position command unit being small, decides this relational expression as a formal relational expression; and a correction execution unit that performs correction on the relative position of the upper/lower guides using this relational expression.