Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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New PCBN for Heavy Interrupted Cutting of Hardened Steel

  • Okamura, Katsumi (Super Hard Materials Development Group, Development Department, Sumitomo Electric Hardmetal Corporation) ;
  • Kukino, Satoru (Super Hard Materials Development Group, Development Department, Sumitomo Electric Hardmetal Corporation) ;
  • Fukaya, Tomohiro (Super Hard Materials Development Group, Development Department, Sumitomo Electric Hardmetal Corporation)
  • Published : 2006.09.24
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Abstract

PCBN tools are used worldwide for machining of hardened steel parts in automotive industries. But in heavy interrupted cutting of hardened steel, the tool life is not so stable by sudden breakage of the cutting edge, and total cost of cutting by PCBN is not so economical compared to the grinding. To solve this problem, new PCBN has been developed. New PCBN has very fine and homogeneous microstructure to increase the toughness of sintered body that it provides a reliable tool life for heavy interrupted cutting.

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