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Microstructure and Cutting Characteristics of SiC- Ceramic Cutting Tool
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 Title & Authors
Microstructure and Cutting Characteristics of SiC- Ceramic Cutting Tool
Gwon, Won-Tae; Kim, Yeong-Uk;
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 Abstract
Four SiC-SiNceramic cutting tools with different composition have been fabricated by hot-pressing. Correlations among the annealing time, the corresponding microstructure and the mechanical properties of resulting ceramics have been investigated. The fracture toughness and the grain size of both SiC and SiNin SiC-SiNcomposites increased with the annealing time. 1\`he hardness of SiC-SiNcomposites was relatively independent of the grain size and the sintered density. These ceramic cutting tools were tested under various cutting conditions and compared with the commercial SiNceramic cutting tools. The experimental results were compared in terms of tool life and cutting force. The performance of SiC-SiNceramic cutting tool shows the possibility to be a new ceramic tool.
 Keywords
SiC-SiNCeramic Cutting Tool;Microstructure;Fracture Toughness;Tool Life Curvature;Cutting Force;
 Language
Korean
 Cited by
 References
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