$MoSi_2$ 기지 복합재의 ED-Drilling

ED-Drilling of $MoSi_2$-matrix Composites

  • 김창호 (동의대 기계산업시스템 공학부) ;
  • 윤한기 (동의대 기계산업시스템 공학부)
  • 발행 : 2000.05.01

초록

This paper describes the machining characteristics of the MoSi$_2$-based composites by electric discharge drilling with various tubular electrodes. MoSi$_2$-based composites has been developed in new materials for jet engine of supersonic-speed airplanes and gas turbine for high- temperature generator. By combining a nonconducting ceramics with more conducting ceramic it was possible to raise the electrical conductivity. In drilling by EDM, the dielectric flushed down the interior of the rotating tube electrode, in order to facilitate the removal of machining debris from the hole. Various metal-coated tubular electrodes of which core are copper and brass are used to know the effect of coating material on machinability of ED drilling.

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