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

허성중 (두원공과대학 기계과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.20, no.10, 2003 , pp. 74-81 More about this Journal
Abstract
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.
Keywords
WC-Co; Difficult-to-Cut materials; Micro-cutting; SEM; tool wear; cutting resistance; machined surface;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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