- Consolidation of Segment Powder for Diamond Tool by Magnetic Pulsed Compaction
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J.S. Yun, J.G. Lee, M.K. Lee, C.K. Rhee, M.S. Park, S.J. Hong
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J Korean Powder Metall Inst. 2008;15(5):378-385.
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DOI: https://doi.org/10.4150/KPMI.2008.15.5.378
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- 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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Citations
Citations to this article as recorded by  - Machining Characteristics of Micro Structure using Single-Crystal Diamond Tool on Cu-plated Mold
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Journal of Korean Powder Metallurgy Institute.2013; 20(4): 297. CrossRef - Consolidation of mixed diamond and cobalt granule powders by magnetic pulsed compaction
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