チタンおよびその合金の放電加工に関する研究 (その2)

放電孔明け加工条件と孔明け加工精度について

抄録

The electric discharge maching conditions of pure titanium plate are searched and the influences of the machining conditions for the drilling accuracy are discussed in this paper. The results are summarized as follows:
1°The electric discharge drilling speed is affected by the source voltage, the source ampere and the condenser capacity, and, especially, the source voltage influences the drilling speed for good in their three, and if the three are increased at the same time, it may be seen their effects are distinctly.
2°The machining ampere for the maximum machining speed is in about 25% value of source ampere and, if the source ampere increases, the most suitable machining ampere increases with it.
3°The drilling accuracy becomes worse in saturation-curve like rising with the machining speed, and the accuracy is affected mainly by the sourse voltage and the condenser capacity. But the accuracy does not seem to be influenced by the machining ampere.