放電加工における実加工中のエネルギー配分の測定

抄録

A clear understanding of the energy distribution in the EDM process is very important for the explanation of some phenomena which cannot be explained well up to now. In this paper, methods and results of measuring the energies distributed into the tool electrode, workpiece and dielectric in the continuous EDM-sinking process are described. The energies distributed into the tool electrode and workpiece are obtained by means of measuring the temperatures and removal amounts of the electrode and workpiece, and the energy distributed into dielectric fluid is obtained by measuring the temperature rise of the dielectric fluid after flowing through the discharge gap. It is found from the experimental results that the energy distributed into the tool electrode is greater than that into the workpiece independently of the pulse duration and that the energy distributed the dielectric is quite small compared with the energies into the electrodes and the workpiece.