Patent ID: 9446464
Filing Date: 2016-09-20
CPC Classification: B23H,G05B

Claim Text:
1. A wire discharge machining apparatus that causes an electric discharge between a wire and a workpiece and machines the workpiece, the apparatus comprising: a numerical control unit that carries out numerical control of the wire discharge machining apparatus according to a machining program; and a display unit that displays information concerning machining of the workpiece by the wire discharge machining apparatus, wherein the numerical control unit includes the display unit displays, as a graphic, information concerning a remaining length that is a calculation result in the wire-remaining-length calculating unit and information concerning an estimated consumed length that is a calculation result in the wire-consumed-length calculating unit, and adds information representing a progress of a machining stage to the information concerning the estimated consumed length, and the wire-consumed-length calculating unit calculates the estimated consumed length based on a machining peripheral length, an estimated machining speed, and a wire feeding speed in each machining stage and uses, as the estimated machining speed used for calculation of the estimated consumed length, an average value of actual machining speeds acquired in machining in past.