放電加工の研究

電極への熱的作用の影響について

抄録

In the electric discharge machining, the phenomena of electrodes (the workpiece and the tool electrode) removal are mainly based on thermal process, and further in these thermal process, it is very important matters to reserch the influences towards electrodes after the energy supplying (electric discharge) for investigating the removal characteristics and the machining defects (residual stresses, inducing of cracks and heat affected zone).
This report discusses the influences of the thermal process (remaining heat value) after energy supplying (electric discharge) on the removal characteristics, residual stresses and inducing of cracks etc. throught the calculations of heat transmission by means of the Monte Carlo method.
In the result, it becomes clear that the remaining heat value seriously affects on the melting valume of electrodes, generated size of residual stresses and inducing ratio of cracks.