<論文>補助プレートを用いた放電工穴のダレ抑制に関する研究

概要

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It is well known that when the hole machining was carried out by EDM using straight electrode pipe, the hole diameters became different at the inlet and outlet of the machined hole. This shape irregularity is caused by wear of the electrode and eroded particles. In previous paper, a method was proposed for diminishing the diameter differences of the hole by EDM using a stepped electrode pipe. Experiments showed that the difference in the diameters of hole is diminished by EDM using a stepped electrode pipe but the corner dullness of machined hole is caused by electrolysis. In this paper, a new method is proposed for diminishing the corner dullness of machined hole by EDM using assisting plate. Following experimental results were obtained. (l) The corner dullness of machined hole is diminished by using assisting plate. (2) Hole machining from rough to fine surface finishing without corner dullness are possible changing the condenser capacity by using assisting plate and stepped electrode pipe.
東海大学の論文
2002-09-30