Wire electric discharge machining method and wire electric discharge machine utilizing pressurized gas for removing machining solution

A wire electric discharge machine in which electric discharge is generated between a wire electrode and a workpiece so as to machine the workpiece by electric discharge, comprising:

• at least one of machining solution supply means for supplying a machining solution between the electrodes and mist supply means for supplying a mist between the electrodes;
• pressurized gas jetting means for removing at least one of the liquid of the machining solution adhering to the workpiece and the liquid of the machining solution capable of dripping onto a machining face of the workpiece, at least at one of before the start of machining, except for the machining conducted in the machining solution, and after the operation of an automatic wire connecting device for conducting an automatic wire connection wherein the wire electrode is being held by a water column;
• and
• positioning means for positioning by relatively moving the workpiece and the pressurized gas jetting means.

A wire electric discharge machine in which electric discharge is generated between a wire electrode and a workpiece so as to machine the workpiece by electric discharge, comprising:

• at least two of machining solution supply means for supplying a machining solution between the electrodes, mist supply means for supplying a mist between the electrodes and gas supply means for supplying a gas between the electrodes;
• pressurized gas jetting means for removing at least one of the liquid of the machining solution adhering to the workpiece and the liquid of the machining solution capable of dripping onto a machining face of the workpiece at least at one of before the start of machining, except for the machining conducted in the machining solution, and after the operation of an automatic wire connecting device for conducting an automatic wire connection wherein the wire electrode is being held by a water column;
• and
• positioning means for positioning by relatively moving the workpiece and the pressurized gas jetting means.