Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Consolidation of Segment Powder for Diamond Tool by Magnetic Pulsed Compaction

자기펄스 압축성형법에 의한 다이아몬드 공구용 세그먼트 분말 성형

  • Yun, J.S. (Division of Advanced Materials Engineering, Kongju National University) ;
  • Lee, J.G. (Nuclear Nano Materials Development lab. Korea Atomic Eergy Research Institute) ;
  • Lee, M.K. (Nuclear Nano Materials Development lab. Korea Atomic Eergy Research Institute) ;
  • Rhee, C.K. (Nuclear Nano Materials Development lab. Korea Atomic Eergy Research Institute) ;
  • Park, M.S. (Shinhan diamond) ;
  • Hong, S.J. (Division of Advanced Materials Engineering, Kongju National University)
  • Published : 2008.10.28
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Abstract

This article presents the successful consolidation of the mixed Co and Diamond powders for a drilling segment by the combined application of magnetic pulsed compaction (MPC) and subsequent sintering, and their properties were analyzed. Homogeneous hardness (Hv 220) and density (97%) of sintered bulks fabricated by MPC were obtained by the new technique, where higher pressure has been employed for short period of time than that of general process. A fine microstructure and homogeneous hardness in the consolidated bulk were observed without cracks. Relatively higher drilling speed of 9.61 cm/min and life time of 6.55 m were found to the MPCed specimens, whereas the value of the specimens fabricated by general process was 11.71 cm/min and 7.96 m, respectively. A substantial improvement of mechanical properties of segment was achieved through this study.

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References

  1. Ralf Riedel Handbook of Ceramic Hard Materials Wiley-VCH New-York, 527-549
  2. V. Blank, M. Popov and G. Piovarov: Dianmond Realt. Mater., 8 (1999) 1531 https://doi.org/10.1016/S0925-9635(99)00079-5
  3. H. W. Lee: Doctor Thesis, Hongik University, Seoul, Korea (2003)
  4. D. Dwan: Mater. Sci. Tech., 40 (1998) 225
  5. G. H. Lee and C. K. Rhee: J. Kor. Inst. Met. & Mater., 9(4) (2003) 425
  6. B. H. Rabin, G. E. Korth and R. L. Willianson: J. Am. Ceram. Soc., 73 (19990) 2156 https://doi.org/10.1111/j.1151-2916.1990.tb05294.x
  7. J. K. Lee, S. J. Hong, M. K. Lee and C. K. Rhee: J. Korean Powder Metall. Inst., 12(5) (2005) 345. (Korean) https://doi.org/10.4150/KPMI.2005.12.5.345
  8. R. C. Kang, M. K. Lee, W. W. Kim, C. K. Rhee and S. J. Hong: J. Korean Powder Metall. Inst., 15(1) (2008) 37. (Korean) https://doi.org/10.4150/KPMI.2008.15.1.037
  9. H. W. Lee, J. H. Lee, H. W. Jun and H. Moon: J. Kor. Ceram. Soc., 37(2000) 1072 (Korean)

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