A study on the machining of micro-extruding die using micro-drilling

마이크로 드릴링을 이용한 미세압출다이 가공에 관한 연구

  • 민승기 (충남대학교 기계공학과 대학원) ;
  • 제태진 (충남대학교 기계공학과 대학원) ;
  • 이응숙 (한국기계연구원 지능형정밀기계연구부) ;
  • 이동주 (충남대학교 기계공학과)
  • Published : 2003.04.01

Abstract

The micro-extruding die is a die for manufacturing of fine-wire by extruding process. The fine-wire made from the micro-extruding can be effectively applied to fields of semiconductor parts and medical parts etc. It is predicted that the demand of fine-wire in industry is more and more increasing. In this study $\phi50\mu m$ micro-drill which is coated with diamond is used for drilling of super micro-hole sizes. For the machining of taper parts of entrance and exit, drill having $\phi50\mu\textrm{mm}$ inclination angle $20^{\circ}$and angle $30^{\circ}$ is used. This is useful for anti tool-breakage and excessive too-wear in drilling process. After micro-drilling, the polishing process by diamond abrasive and polishing wood s carried out for increasing surface roughness.

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