Abstract
Influence of WC and Co in Cutting Cemented Carbides with PCD and CBN Tools
Highlights
Cemented carbides have high hardness, and they are used for cutting tools and dies
(3) In turning of the cemented carbides contained the larger quantity of Co, the cBN tools are more effective than the PCD tool
It is well known that cemented carbides are difficult-to-cut materials and the tool wear is very severe in cutting with the PCD tool [1]-[5]
Summary
Cemented carbides have high hardness, and they are used for cutting tools and dies. It is well known that cemented carbides are difficult-to-cut materials and the tool wear is very severe in cutting with the PCD tool [1]-[5]. It is necessary to make clear the machinability in cutting the cemented carbides in detail. The tool life was compared among four kinds of cemented carbides. The turning [6], the micro cutting in the SEM [7] and the mist and wet turning [8] were carried out to make clear the tool wear mechanism. As these work materials were not standardized the WC particle size and Co contents, the relationship between tool life and the WC particle size, Co contents could not be made clear. In this study, the turning of the cemented carbides that the WC particle diameter was standardized was carried out. The tool wear was measured and the worn flank was observed
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