To provide an electric discharging machine which can flexibly cope with various forms of corrosion of workpieces, and to provide an electric discharging method.
In the electric discharging machine 1, while immersing a workpiece W in a working fluid, a bipolar voltage which has bipolarity, that is, a straight polarity in which the workpiece W has a positive potential while a tool electrode E has a negative potential and a reversed polarity in which the workpiece has a negative potential while the tool electrode E has a positive potential, is applied to an interpolar portion 9 formed between the workpiece W and a wire electrode E to generate electric discharge and to perform electric discharge machining of the workpiece W. The electric discharging machine 1 comprises an average voltage setting device 50 which sets the average of voltages applied to the interpolar portion 9 to a predetermined value, and an adenine-adding device 44 that adds adenine to a working fluid. The average voltage of the interpolar portion 9 is set to a predetermined value, and, further, adenine is added to the working fluid.
KANEKO YUJI
HARADA TAKENORI
DOI YUZO
WAKAI AKIRA
| JPS61274812A | 1986-12-05 | |||
| JPS6267184A | 1987-03-26 |
| WO2006126248A1 | 2006-11-30 |