Ceramic Cutting Tools
Ceramics are inorganic, nonmetallic materials. The structure of ceramics may be crystalline or partly crystalline (having intergranular amorphous phases). The definition of ceramic is often restricted to inorganic crystalline materials.
Ceramics are primarily divided into two classes: whiteware ceramic and technical ceramic (refer to section “Synonyms”). Whiteware ceramics typically possess poor mechanical properties. Technical ceramic materials are of high purity and are designed for specific application and use. Ceramics used in wear applications are harder compared to metallic materials, maintain strength and hardness, and are chemically inert at high temperatures. The combination of hardness, high-temperature strength, and chemical resistivity makes ceramics important cutting tool materials.
Theory and Application
Special thanks to Dr. Sheng Chao and Dr. Stefan Holzer at Kennametal for supporting this article with data.
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