한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

한국정밀공학회 (Korean Society for Precision Engineering)
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SEM 내 마이크로 절삭에 의한 초경합금재의 절삭 특성에 관한 연구

Study on Cutting Characteristics of WC-Co with Micro Cutting in SEM

  • 발행 : 2003.10.01
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초록

This paper describes that the micro-cutting of WC-Co using PCD (Polycrystalline Diamond) and PcBN (Polycrystalline Cubic Boron Nitride) cutting tools are performed with SEM(Scanning Electron Microscope) direct observation method. The purpose of this study is to present reasonable cutting conditions to obtain precise finished surface and machining efficiency. Summary of the results are shown below: (1) The thrust cutting forces tend to increase more than the principal forces as the depth of cut and the cuttlllg speed are increased preferably on orthogonal microcutting. (2) The tool wear in the flank face was formed larger than that in the rake face on orthogonal micro cutting. (3) The wear appearance for PCD tools is abraded by hard WC particles of the work materials, which lead diamond grain to be detached from the bond.

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참고문헌

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