Brother Kogyo Kabushiki-Kaisha

Yuji Ishibashi

Akihiro Komori

Masayuki Iwai

A traveling wire electric discharge machining apparatus machines a workpiece by applying periodic voltage pulses to a wire electrode while moving the wire electrode relative to the workpiece. A location on the workpiece is determined, according to a predetermined parameter. The location is before a change in machining direction of the workpiece. When the wire electrode is positioned at the determined location, a characteristic of the periodic voltage pulse is changed.

Traveling wire electric discharge machining apparatus capable of

A discharge frequency per unit time between a wire electrode and a workpiece is detected, and the thickness of the workpiece is estimated on the basis of the discharge frequency, the relative moving speed between the wire electrode and the workpiece and the information on the shape of the workpiece. Thereafter, the optimum discharge period is calculated on the basis of the estimated thickness of the workpiece and the set processing conditions to perform the processing of the workpiece.

Growing community of inventors

Nagoya, Japan

Yuji Ishibashi