WIRE ELECTRICAL DISCHARGE MACHINING DEVICE

摘要

The purpose of the present invention is to provide a wire electrical discharge machining device wherein disconnection is prevented during wire electrical discharge machining and the total speed during shape machining is improved. In order to provide said wire electrical discharge machining device, the present invention configures a wire electrical discharge machining device, which machines an object to be machined by generating a discharge in a gap between a wire electrode and the object to be machined and by supplying machining fluid to the gap from a machining fluid supply nozzle disposed above the object to be machined and having the wire electrode penetrating through the inside, to be provided with a machining condition changing means for changing the machining condition for wire electrical discharge machining to a disconnection avoidance condition in which the disconnection of the wire electrode can be avoided in a section in which the machining fluid flow rate supplied between electrodes increases to a given amount or more after the wire electrode performs corner-part machining on the object to be machined on the basis of predetermined machining trajectory data.