자성연마용 Fe-WC복합지립의 조직특성

Characteristics of Fe-WC composite powders for Magnetic Abrasive

  • 이영란 (경상대학교 재료공학부, 생산기술연구소) ;
  • 배승열 (경상대학교 재료공학부, 생산기술연구소) ;
  • 권대환 (경상대학교 재료공학부, 생산기술연구소) ;
  • 안인섭 (경상대학교 재료공학부, 생산기술연구소) ;
  • 김유영 (진주산업대학교 기계공학과)
  • Lee, Yeong-Ran (Division of Materials Science and Engineering & RIIT, Gyeongsang National University) ;
  • Bae, Seung-Yeol (Division of Materials Science and Engineering & RIIT, Gyeongsang National University) ;
  • Gwon, Dae-Hwan (Division of Materials Science and Engineering & RIIT, Gyeongsang National University) ;
  • An, In-Seop (Division of Materials Science and Engineering & RIIT, Gyeongsang National University) ;
  • Kim, Yu-Yeong (Dept.of Mechanical Engineering, Chinju National University)
  • 발행 : 2001.10.01

초록

In order to improve the grindability of magnetic abrasive, Fe-WC magnetic abrasives were made by a plasma melting method after ball milling at various times. This study aims to investigate homogeneously distributed hard phases in Fe matrix and strong bonding between the Fe-matrix and the hard phase. According to XRD, SEM and OM observation, Fe-WC magnetic abrasive powders exhibit the best grindability by plasma melting for 30h ball milling. As a result of magnetic abrasive polishing, the surface roughness, R_{max}$ 5.0$\mu\textrm{m}$, before magnetic abrasive polishing, was reduced to R_{max}$ 2.4$\mu\textrm{m}$. The new magnetic abrasive polishing process is thought to be the useful methods for the automation of three dimensional surface polishing.

키워드

참고문헌

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